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yaml 0.10.4.0 → 0.11.0.0

raw patch · 17 files changed

+14/−13851 lines, 17 filesdep +libyaml

Dependencies added: libyaml

Files

ChangeLog.md view
@@ -1,5 +1,9 @@ # ChangeLog for yaml +## 0.11.0.0++* Split out the `libyaml` and `Text.Libyaml` code into its own package. [#145](https://github.com/snoyberg/yaml/issues/145)+ ## 0.10.4.0  * Add `decodeMarked` and `decodeFileMarked` functions to `Text.Libyaml`, and
README.md view
@@ -5,15 +5,13 @@  Provides support for parsing and emitting Yaml documents. -This package includes the [full libyaml C library version 0.2.1 by Kirill Simonov](https://github.com/yaml/libyaml) in the package so you don't need to worry about any non-Haskell dependencies.--The package is broken down into two primary modules. `Data.Yaml` provides a high-level interface based around the JSON datatypes provided by the `aeson` package. `Text.Libyaml` provides a lower-level, streaming interface. For most users, `Data.Yaml` is recommended.+`Data.Yaml` provides a high-level interface based around the JSON datatypes provided by the `aeson` package. It uses `Text.Libyaml` from `libyaml` in its implementation of the low-level yaml encoder/decoder.  ### Examples -Usage examples can be found in the `Data.Yaml` documentation or in the [examples](https://github.com/snoyberg/yaml/tree/master/examples) directory.+Usage examples can be found in the `Data.Yaml` documentation or in the [examples](https://github.com/snoyberg/yaml/tree/master/yaml/examples) directory. -### Additional modules+### Additional `yaml` modules  * `Data.Yaml.Include` supports adding `!include` directives to your YAML files. * `Data.Yaml.Builder` and `Data.Yaml.Parser` allow more fine-grained control of parsing an rendering, as opposed to just using the aeson typeclass and datatype system for parsing and rendering.
− c/helper.c 
@@ -1,187 +0,0 @@-#include <stdlib.h>-#include <string.h>-#include <stdio.h>-#include "helper.h"--void buffer_init(buffer_t *buffer)-{-	buffer->buff = 0;-	buffer->size = buffer->used = 0;-}--int buffer_append(void *ext, unsigned char *str, size_t size)-{-	buffer_t *b = ext;-	int new_size, new_used;-	unsigned char *tmp;--	new_used = b->used + size;-	for (new_size = b->size ? b->size : 8; new_size < new_used; new_size *= 2);--	if (new_size != b->size) {-		tmp = realloc(b->buff, new_size);-		if (!tmp) return 0;-		b->buff = tmp;-		b->size = new_size;-	}--	memcpy(b->buff + b->used, str, size);-	b->used = new_used;--	return 1;-}--unsigned char * get_buffer_buff(buffer_t *b)-{-	return b->buff;-}--unsigned int get_buffer_used(buffer_t *b)-{-	return b->used;-}--void my_emitter_set_output(yaml_emitter_t *e, buffer_t *b)-{-	yaml_emitter_set_output(e, buffer_append, b);-}--char const * get_parser_error_problem(yaml_parser_t *p)-{-	return p->problem;-}--char const * get_parser_error_context(yaml_parser_t *p)-{-	return p->context;-}--const yaml_mark_t * get_parser_error_mark(yaml_parser_t *p)-{-	return &p->problem_mark;-}--char const * get_emitter_error(yaml_emitter_t *e)-{-	return e->problem;-}--int simple_document_start(yaml_event_t *e)-{-	return yaml_document_start_event_initialize-		(e,-		 0,-		 0,-		 0,-		 1);-}--int get_event_type(yaml_event_t *e)-{-	return e->type;-}--unsigned char * get_scalar_value(yaml_event_t *e)-{-	return e->data.scalar.value;-}--unsigned long get_scalar_length(yaml_event_t *e)-{-	return e->data.scalar.length;-}--unsigned char * get_scalar_tag(yaml_event_t *e)-{-	unsigned char *s = e->data.scalar.tag;-	if (!s) s = (unsigned char *) "";-	return s;-}--int get_scalar_style(yaml_event_t *e)-{-	return e->data.scalar.style;-}--unsigned char * get_scalar_anchor(yaml_event_t *e)-{-        return e->data.scalar.anchor;-}--unsigned char * get_sequence_start_anchor(yaml_event_t *e)-{-        return e->data.sequence_start.anchor;-}--int get_sequence_start_style(yaml_event_t *e)-{-	return e->data.sequence_start.style;-}--unsigned char * get_sequence_start_tag(yaml_event_t *e)-{-	unsigned char *s = e->data.sequence_start.tag;-	if (!s) s = (unsigned char *) "";-	return s;-}--unsigned char * get_mapping_start_anchor(yaml_event_t *e)-{-        return e->data.mapping_start.anchor;-}--int get_mapping_start_style(yaml_event_t *e)-{-	return e->data.mapping_start.style;-}--unsigned char * get_mapping_start_tag(yaml_event_t *e)-{-	unsigned char *s = e->data.mapping_start.tag;-	if (!s) s = (unsigned char *) "";-	return s;-}--unsigned char * get_alias_anchor(yaml_event_t *e)-{-        return e->data.alias.anchor;-}--const yaml_mark_t * get_start_mark(yaml_event_t *e)-{-	return &e->start_mark;-}--const yaml_mark_t * get_end_mark(yaml_event_t *e)-{-	return &e->end_mark;-}--unsigned int get_mark_index(yaml_mark_t *m)-{-	return m->index;-}--unsigned int get_mark_line(yaml_mark_t *m)-{-	return m->line;-}--unsigned int get_mark_column(yaml_mark_t *m)-{-	return m->column;-}--int yaml_parser_set_input_filename(yaml_parser_t *parser, const char *filename)-{-	FILE *in = fopen(filename, "r");-	if (!in) return 0;-	yaml_parser_set_input_file(parser, in);-	return 1;-}--int fclose_helper(FILE *file)-{-	if (! file) return 0;-	return fclose(file);-}
− c/helper.h 
@@ -1,43 +0,0 @@-#ifndef __HELPER_H__-#define __HELPER_H__--#include <yaml.h>--typedef struct buffer_s {-	unsigned char *buff;-	unsigned int size, used;-} buffer_t;-void buffer_init(buffer_t *buffer);-int buffer_append(void *ext, unsigned char *str, size_t size);-unsigned char * get_buffer_buff(buffer_t *b);-unsigned int get_buffer_used(buffer_t *b);--void my_emitter_set_output(yaml_emitter_t *e, buffer_t *b);--char const * get_parser_error_problem(yaml_parser_t *p);-char const * get_parser_error_context(yaml_parser_t *p);-unsigned int    get_parser_error_offset(yaml_parser_t *p);--char const * get_emitter_error(yaml_emitter_t *e);--int simple_document_start(yaml_event_t *e);--int get_event_type(yaml_event_t *e);--unsigned char * get_scalar_value(yaml_event_t *e);-unsigned long get_scalar_length(yaml_event_t *e);--unsigned char * get_scalar_tag(yaml_event_t *e);-unsigned char * get_sequence_start_tag(yaml_event_t *e);-unsigned char * get_mapping_start_tag(yaml_event_t *e);--int get_scalar_style(yaml_event_t *e);-int get_sequence_start_style(yaml_event_t *e);-int get_mapping_start_style(yaml_event_t *e);--unsigned char * get_scalar_anchor(yaml_event_t *e);-unsigned char * get_sequence_start_anchor(yaml_event_t *e);-unsigned char * get_mapping_start_anchor(yaml_event_t *e);-unsigned char * get_alias_anchor(yaml_event_t *e);--#endif /* __HELPER_H__ */
− libyaml/LICENSE 
@@ -1,20 +0,0 @@-Copyright (c) 2017-2018 Ingy döt Net-Copyright (c) 2006-2016 Kirill Simonov--Permission is hereby granted, free of charge, to any person obtaining a copy of-this software and associated documentation files (the "Software"), to deal in-the Software without restriction, including without limitation the rights to-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies-of the Software, and to permit persons to whom the Software is furnished to do-so, subject to the following conditions:--The above copyright notice and this permission notice shall be included in all-copies or substantial portions of the Software.--THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE-SOFTWARE.
− libyaml/api.c 
@@ -1,1402 +0,0 @@--#include "yaml_private.h"--/*- * Get the library version.- */--YAML_DECLARE(const char *)-yaml_get_version_string(void)-{-    return YAML_VERSION_STRING;-}--/*- * Get the library version numbers.- */--YAML_DECLARE(void)-yaml_get_version(int *major, int *minor, int *patch)-{-    *major = YAML_VERSION_MAJOR;-    *minor = YAML_VERSION_MINOR;-    *patch = YAML_VERSION_PATCH;-}--/*- * Allocate a dynamic memory block.- */--YAML_DECLARE(void *)-yaml_malloc(size_t size)-{-    return malloc(size ? size : 1);-}--/*- * Reallocate a dynamic memory block.- */--YAML_DECLARE(void *)-yaml_realloc(void *ptr, size_t size)-{-    return ptr ? realloc(ptr, size ? size : 1) : malloc(size ? size : 1);-}--/*- * Free a dynamic memory block.- */--YAML_DECLARE(void)-yaml_free(void *ptr)-{-    if (ptr) free(ptr);-}--/*- * Duplicate a string.- */--YAML_DECLARE(yaml_char_t *)-yaml_strdup(const yaml_char_t *str)-{-    if (!str)-        return NULL;--/*- * Haskell yaml package: added to support _WIN64- */-#if _WIN64-    return (yaml_char_t *)_strdup((char *)str);-#else-    return (yaml_char_t *)strdup((char *)str);-#endif-}--/*- * Extend a string.- */--YAML_DECLARE(int)-yaml_string_extend(yaml_char_t **start,-        yaml_char_t **pointer, yaml_char_t **end)-{-    yaml_char_t *new_start = (yaml_char_t *)yaml_realloc((void*)*start, (*end - *start)*2);--    if (!new_start) return 0;--    memset(new_start + (*end - *start), 0, *end - *start);--    *pointer = new_start + (*pointer - *start);-    *end = new_start + (*end - *start)*2;-    *start = new_start;--    return 1;-}--/*- * Append a string B to a string A.- */--YAML_DECLARE(int)-yaml_string_join(-        yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end,-        yaml_char_t **b_start, yaml_char_t **b_pointer, SHIM(yaml_char_t **b_end))-{-    UNUSED_PARAM(b_end)-    if (*b_start == *b_pointer)-        return 1;--    while (*a_end - *a_pointer <= *b_pointer - *b_start) {-        if (!yaml_string_extend(a_start, a_pointer, a_end))-            return 0;-    }--    memcpy(*a_pointer, *b_start, *b_pointer - *b_start);-    *a_pointer += *b_pointer - *b_start;--    return 1;-}--/*- * Extend a stack.- */--YAML_DECLARE(int)-yaml_stack_extend(void **start, void **top, void **end)-{-    void *new_start = yaml_realloc(*start, ((char *)*end - (char *)*start)*2);--    if (!new_start) return 0;--    *top = (char *)new_start + ((char *)*top - (char *)*start);-    *end = (char *)new_start + ((char *)*end - (char *)*start)*2;-    *start = new_start;--    return 1;-}--/*- * Extend or move a queue.- */--YAML_DECLARE(int)-yaml_queue_extend(void **start, void **head, void **tail, void **end)-{-    /* Check if we need to resize the queue. */--    if (*start == *head && *tail == *end) {-        void *new_start = yaml_realloc(*start,-                ((char *)*end - (char *)*start)*2);--        if (!new_start) return 0;--        *head = (char *)new_start + ((char *)*head - (char *)*start);-        *tail = (char *)new_start + ((char *)*tail - (char *)*start);-        *end = (char *)new_start + ((char *)*end - (char *)*start)*2;-        *start = new_start;-    }--    /* Check if we need to move the queue at the beginning of the buffer. */--    if (*tail == *end) {-        if (*head != *tail) {-            memmove(*start, *head, (char *)*tail - (char *)*head);-        }-        *tail = (char *)*tail - (char *)*head + (char *)*start;-        *head = *start;-    }--    return 1;-}---/*- * Create a new parser object.- */--YAML_DECLARE(int)-yaml_parser_initialize(yaml_parser_t *parser)-{-    assert(parser);     /* Non-NULL parser object expected. */--    memset(parser, 0, sizeof(yaml_parser_t));-    if (!BUFFER_INIT(parser, parser->raw_buffer, INPUT_RAW_BUFFER_SIZE))-        goto error;-    if (!BUFFER_INIT(parser, parser->buffer, INPUT_BUFFER_SIZE))-        goto error;-    if (!QUEUE_INIT(parser, parser->tokens, INITIAL_QUEUE_SIZE, yaml_token_t*))-        goto error;-    if (!STACK_INIT(parser, parser->indents, int*))-        goto error;-    if (!STACK_INIT(parser, parser->simple_keys, yaml_simple_key_t*))-        goto error;-    if (!STACK_INIT(parser, parser->states, yaml_parser_state_t*))-        goto error;-    if (!STACK_INIT(parser, parser->marks, yaml_mark_t*))-        goto error;-    if (!STACK_INIT(parser, parser->tag_directives, yaml_tag_directive_t*))-        goto error;--    return 1;--error:--    BUFFER_DEL(parser, parser->raw_buffer);-    BUFFER_DEL(parser, parser->buffer);-    QUEUE_DEL(parser, parser->tokens);-    STACK_DEL(parser, parser->indents);-    STACK_DEL(parser, parser->simple_keys);-    STACK_DEL(parser, parser->states);-    STACK_DEL(parser, parser->marks);-    STACK_DEL(parser, parser->tag_directives);--    return 0;-}--/*- * Destroy a parser object.- */--YAML_DECLARE(void)-yaml_parser_delete(yaml_parser_t *parser)-{-    assert(parser); /* Non-NULL parser object expected. */--    BUFFER_DEL(parser, parser->raw_buffer);-    BUFFER_DEL(parser, parser->buffer);-    while (!QUEUE_EMPTY(parser, parser->tokens)) {-        yaml_token_delete(&DEQUEUE(parser, parser->tokens));-    }-    QUEUE_DEL(parser, parser->tokens);-    STACK_DEL(parser, parser->indents);-    STACK_DEL(parser, parser->simple_keys);-    STACK_DEL(parser, parser->states);-    STACK_DEL(parser, parser->marks);-    while (!STACK_EMPTY(parser, parser->tag_directives)) {-        yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives);-        yaml_free(tag_directive.handle);-        yaml_free(tag_directive.prefix);-    }-    STACK_DEL(parser, parser->tag_directives);--    memset(parser, 0, sizeof(yaml_parser_t));-}--/*- * String read handler.- */--static int-yaml_string_read_handler(void *data, unsigned char *buffer, size_t size,-        size_t *size_read)-{-    yaml_parser_t *parser = (yaml_parser_t *)data;--    if (parser->input.string.current == parser->input.string.end) {-        *size_read = 0;-        return 1;-    }--    if (size > (size_t)(parser->input.string.end-                - parser->input.string.current)) {-        size = parser->input.string.end - parser->input.string.current;-    }--    memcpy(buffer, parser->input.string.current, size);-    parser->input.string.current += size;-    *size_read = size;-    return 1;-}--/*- * File read handler.- */--static int-yaml_file_read_handler(void *data, unsigned char *buffer, size_t size,-        size_t *size_read)-{-    yaml_parser_t *parser = (yaml_parser_t *)data;--    *size_read = fread(buffer, 1, size, parser->input.file);-    return !ferror(parser->input.file);-}--/*- * Set a string input.- */--YAML_DECLARE(void)-yaml_parser_set_input_string(yaml_parser_t *parser,-        const unsigned char *input, size_t size)-{-    assert(parser); /* Non-NULL parser object expected. */-    assert(!parser->read_handler);  /* You can set the source only once. */-    assert(input);  /* Non-NULL input string expected. */--    parser->read_handler = yaml_string_read_handler;-    parser->read_handler_data = parser;--    parser->input.string.start = input;-    parser->input.string.current = input;-    parser->input.string.end = input+size;-}--/*- * Set a file input.- */--YAML_DECLARE(void)-yaml_parser_set_input_file(yaml_parser_t *parser, FILE *file)-{-    assert(parser); /* Non-NULL parser object expected. */-    assert(!parser->read_handler);  /* You can set the source only once. */-    assert(file);   /* Non-NULL file object expected. */--    parser->read_handler = yaml_file_read_handler;-    parser->read_handler_data = parser;--    parser->input.file = file;-}--/*- * Set a generic input.- */--YAML_DECLARE(void)-yaml_parser_set_input(yaml_parser_t *parser,-        yaml_read_handler_t *handler, void *data)-{-    assert(parser); /* Non-NULL parser object expected. */-    assert(!parser->read_handler);  /* You can set the source only once. */-    assert(handler);    /* Non-NULL read handler expected. */--    parser->read_handler = handler;-    parser->read_handler_data = data;-}--/*- * Set the source encoding.- */--YAML_DECLARE(void)-yaml_parser_set_encoding(yaml_parser_t *parser, yaml_encoding_t encoding)-{-    assert(parser); /* Non-NULL parser object expected. */-    assert(!parser->encoding); /* Encoding is already set or detected. */--    parser->encoding = encoding;-}--/*- * Create a new emitter object.- */--YAML_DECLARE(int)-yaml_emitter_initialize(yaml_emitter_t *emitter)-{-    assert(emitter);    /* Non-NULL emitter object expected. */--    memset(emitter, 0, sizeof(yaml_emitter_t));-    if (!BUFFER_INIT(emitter, emitter->buffer, OUTPUT_BUFFER_SIZE))-        goto error;-    if (!BUFFER_INIT(emitter, emitter->raw_buffer, OUTPUT_RAW_BUFFER_SIZE))-        goto error;-    if (!STACK_INIT(emitter, emitter->states, yaml_emitter_state_t*))-        goto error;-    if (!QUEUE_INIT(emitter, emitter->events, INITIAL_QUEUE_SIZE, yaml_event_t*))-        goto error;-    if (!STACK_INIT(emitter, emitter->indents, int*))-        goto error;-    if (!STACK_INIT(emitter, emitter->tag_directives, yaml_tag_directive_t*))-        goto error;--    return 1;--error:--    BUFFER_DEL(emitter, emitter->buffer);-    BUFFER_DEL(emitter, emitter->raw_buffer);-    STACK_DEL(emitter, emitter->states);-    QUEUE_DEL(emitter, emitter->events);-    STACK_DEL(emitter, emitter->indents);-    STACK_DEL(emitter, emitter->tag_directives);--    return 0;-}--/*- * Destroy an emitter object.- */--YAML_DECLARE(void)-yaml_emitter_delete(yaml_emitter_t *emitter)-{-    assert(emitter);    /* Non-NULL emitter object expected. */--    BUFFER_DEL(emitter, emitter->buffer);-    BUFFER_DEL(emitter, emitter->raw_buffer);-    STACK_DEL(emitter, emitter->states);-    while (!QUEUE_EMPTY(emitter, emitter->events)) {-        yaml_event_delete(&DEQUEUE(emitter, emitter->events));-    }-    QUEUE_DEL(emitter, emitter->events);-    STACK_DEL(emitter, emitter->indents);-    while (!STACK_EMPTY(empty, emitter->tag_directives)) {-        yaml_tag_directive_t tag_directive = POP(emitter, emitter->tag_directives);-        yaml_free(tag_directive.handle);-        yaml_free(tag_directive.prefix);-    }-    STACK_DEL(emitter, emitter->tag_directives);-    yaml_free(emitter->anchors);--    memset(emitter, 0, sizeof(yaml_emitter_t));-}--/*- * String write handler.- */--static int-yaml_string_write_handler(void *data, unsigned char *buffer, size_t size)-{-  yaml_emitter_t *emitter = (yaml_emitter_t *)data;--    if (emitter->output.string.size - *emitter->output.string.size_written-            < size) {-        memcpy(emitter->output.string.buffer-                + *emitter->output.string.size_written,-                buffer,-                emitter->output.string.size-                - *emitter->output.string.size_written);-        *emitter->output.string.size_written = emitter->output.string.size;-        return 0;-    }--    memcpy(emitter->output.string.buffer-            + *emitter->output.string.size_written, buffer, size);-    *emitter->output.string.size_written += size;-    return 1;-}--/*- * File write handler.- */--static int-yaml_file_write_handler(void *data, unsigned char *buffer, size_t size)-{-    yaml_emitter_t *emitter = (yaml_emitter_t *)data;--    return (fwrite(buffer, 1, size, emitter->output.file) == size);-}-/*- * Set a string output.- */--YAML_DECLARE(void)-yaml_emitter_set_output_string(yaml_emitter_t *emitter,-        unsigned char *output, size_t size, size_t *size_written)-{-    assert(emitter);    /* Non-NULL emitter object expected. */-    assert(!emitter->write_handler);    /* You can set the output only once. */-    assert(output);     /* Non-NULL output string expected. */--    emitter->write_handler = yaml_string_write_handler;-    emitter->write_handler_data = emitter;--    emitter->output.string.buffer = output;-    emitter->output.string.size = size;-    emitter->output.string.size_written = size_written;-    *size_written = 0;-}--/*- * Set a file output.- */--YAML_DECLARE(void)-yaml_emitter_set_output_file(yaml_emitter_t *emitter, FILE *file)-{-    assert(emitter);    /* Non-NULL emitter object expected. */-    assert(!emitter->write_handler);    /* You can set the output only once. */-    assert(file);       /* Non-NULL file object expected. */--    emitter->write_handler = yaml_file_write_handler;-    emitter->write_handler_data = emitter;--    emitter->output.file = file;-}--/*- * Set a generic output handler.- */--YAML_DECLARE(void)-yaml_emitter_set_output(yaml_emitter_t *emitter,-        yaml_write_handler_t *handler, void *data)-{-    assert(emitter);    /* Non-NULL emitter object expected. */-    assert(!emitter->write_handler);    /* You can set the output only once. */-    assert(handler);    /* Non-NULL handler object expected. */--    emitter->write_handler = handler;-    emitter->write_handler_data = data;-}--/*- * Set the output encoding.- */--YAML_DECLARE(void)-yaml_emitter_set_encoding(yaml_emitter_t *emitter, yaml_encoding_t encoding)-{-    assert(emitter);    /* Non-NULL emitter object expected. */-    assert(!emitter->encoding);     /* You can set encoding only once. */--    emitter->encoding = encoding;-}--/*- * Set the canonical output style.- */--YAML_DECLARE(void)-yaml_emitter_set_canonical(yaml_emitter_t *emitter, int canonical)-{-    assert(emitter);    /* Non-NULL emitter object expected. */--    emitter->canonical = (canonical != 0);-}--/*- * Set the indentation increment.- */--YAML_DECLARE(void)-yaml_emitter_set_indent(yaml_emitter_t *emitter, int indent)-{-    assert(emitter);    /* Non-NULL emitter object expected. */--    emitter->best_indent = (1 < indent && indent < 10) ? indent : 2;-}--/*- * Set the preferred line width.- */--YAML_DECLARE(void)-yaml_emitter_set_width(yaml_emitter_t *emitter, int width)-{-    assert(emitter);    /* Non-NULL emitter object expected. */--    emitter->best_width = (width >= 0) ? width : -1;-}--/*- * Set if unescaped non-ASCII characters are allowed.- */--YAML_DECLARE(void)-yaml_emitter_set_unicode(yaml_emitter_t *emitter, int unicode)-{-    assert(emitter);    /* Non-NULL emitter object expected. */--    emitter->unicode = (unicode != 0);-}--/*- * Set the preferred line break character.- */--YAML_DECLARE(void)-yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break)-{-    assert(emitter);    /* Non-NULL emitter object expected. */--    emitter->line_break = line_break;-}--/*- * Destroy a token object.- */--YAML_DECLARE(void)-yaml_token_delete(yaml_token_t *token)-{-    assert(token);  /* Non-NULL token object expected. */--    switch (token->type)-    {-        case YAML_TAG_DIRECTIVE_TOKEN:-            yaml_free(token->data.tag_directive.handle);-            yaml_free(token->data.tag_directive.prefix);-            break;--        case YAML_ALIAS_TOKEN:-            yaml_free(token->data.alias.value);-            break;--        case YAML_ANCHOR_TOKEN:-            yaml_free(token->data.anchor.value);-            break;--        case YAML_TAG_TOKEN:-            yaml_free(token->data.tag.handle);-            yaml_free(token->data.tag.suffix);-            break;--        case YAML_SCALAR_TOKEN:-            yaml_free(token->data.scalar.value);-            break;--        default:-            break;-    }--    memset(token, 0, sizeof(yaml_token_t));-}--/*- * Check if a string is a valid UTF-8 sequence.- *- * Check 'reader.c' for more details on UTF-8 encoding.- */--static int-yaml_check_utf8(yaml_char_t *start, size_t length)-{-    yaml_char_t *end = start+length;-    yaml_char_t *pointer = start;--    while (pointer < end) {-        unsigned char octet;-        unsigned int width;-        unsigned int value;-        size_t k;--        octet = pointer[0];-        width = (octet & 0x80) == 0x00 ? 1 :-                (octet & 0xE0) == 0xC0 ? 2 :-                (octet & 0xF0) == 0xE0 ? 3 :-                (octet & 0xF8) == 0xF0 ? 4 : 0;-        value = (octet & 0x80) == 0x00 ? octet & 0x7F :-                (octet & 0xE0) == 0xC0 ? octet & 0x1F :-                (octet & 0xF0) == 0xE0 ? octet & 0x0F :-                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;-        if (!width) return 0;-        if (pointer+width > end) return 0;-        for (k = 1; k < width; k ++) {-            octet = pointer[k];-            if ((octet & 0xC0) != 0x80) return 0;-            value = (value << 6) + (octet & 0x3F);-        }-        if (!((width == 1) ||-            (width == 2 && value >= 0x80) ||-            (width == 3 && value >= 0x800) ||-            (width == 4 && value >= 0x10000))) return 0;--        pointer += width;-    }--    return 1;-}--/*- * Create STREAM-START.- */--YAML_DECLARE(int)-yaml_stream_start_event_initialize(yaml_event_t *event,-        yaml_encoding_t encoding)-{-    yaml_mark_t mark = { 0, 0, 0 };--    assert(event);  /* Non-NULL event object is expected. */--    STREAM_START_EVENT_INIT(*event, encoding, mark, mark);--    return 1;-}--/*- * Create STREAM-END.- */--YAML_DECLARE(int)-yaml_stream_end_event_initialize(yaml_event_t *event)-{-    yaml_mark_t mark = { 0, 0, 0 };--    assert(event);  /* Non-NULL event object is expected. */--    STREAM_END_EVENT_INIT(*event, mark, mark);--    return 1;-}--/*- * Create DOCUMENT-START.- */--YAML_DECLARE(int)-yaml_document_start_event_initialize(yaml_event_t *event,-        yaml_version_directive_t *version_directive,-        yaml_tag_directive_t *tag_directives_start,-        yaml_tag_directive_t *tag_directives_end,-        int implicit)-{-    struct {-        yaml_error_type_t error;-    } context;-    yaml_mark_t mark = { 0, 0, 0 };-    yaml_version_directive_t *version_directive_copy = NULL;-    struct {-        yaml_tag_directive_t *start;-        yaml_tag_directive_t *end;-        yaml_tag_directive_t *top;-    } tag_directives_copy = { NULL, NULL, NULL };-    yaml_tag_directive_t value = { NULL, NULL };--    assert(event);          /* Non-NULL event object is expected. */-    assert((tag_directives_start && tag_directives_end) ||-            (tag_directives_start == tag_directives_end));-                            /* Valid tag directives are expected. */--    if (version_directive) {-        version_directive_copy = YAML_MALLOC_STATIC(yaml_version_directive_t);-        if (!version_directive_copy) goto error;-        version_directive_copy->major = version_directive->major;-        version_directive_copy->minor = version_directive->minor;-    }--    if (tag_directives_start != tag_directives_end) {-        yaml_tag_directive_t *tag_directive;-        if (!STACK_INIT(&context, tag_directives_copy, yaml_tag_directive_t*))-            goto error;-        for (tag_directive = tag_directives_start;-                tag_directive != tag_directives_end; tag_directive ++) {-            assert(tag_directive->handle);-            assert(tag_directive->prefix);-            if (!yaml_check_utf8(tag_directive->handle,-                        strlen((char *)tag_directive->handle)))-                goto error;-            if (!yaml_check_utf8(tag_directive->prefix,-                        strlen((char *)tag_directive->prefix)))-                goto error;-            value.handle = yaml_strdup(tag_directive->handle);-            value.prefix = yaml_strdup(tag_directive->prefix);-            if (!value.handle || !value.prefix) goto error;-            if (!PUSH(&context, tag_directives_copy, value))-                goto error;-            value.handle = NULL;-            value.prefix = NULL;-        }-    }--    DOCUMENT_START_EVENT_INIT(*event, version_directive_copy,-            tag_directives_copy.start, tag_directives_copy.top,-            implicit, mark, mark);--    return 1;--error:-    yaml_free(version_directive_copy);-    while (!STACK_EMPTY(context, tag_directives_copy)) {-        yaml_tag_directive_t value = POP(context, tag_directives_copy);-        yaml_free(value.handle);-        yaml_free(value.prefix);-    }-    STACK_DEL(context, tag_directives_copy);-    yaml_free(value.handle);-    yaml_free(value.prefix);--    return 0;-}--/*- * Create DOCUMENT-END.- */--YAML_DECLARE(int)-yaml_document_end_event_initialize(yaml_event_t *event, int implicit)-{-    yaml_mark_t mark = { 0, 0, 0 };--    assert(event);      /* Non-NULL emitter object is expected. */--    DOCUMENT_END_EVENT_INIT(*event, implicit, mark, mark);--    return 1;-}--/*- * Create ALIAS.- */--YAML_DECLARE(int)-yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor)-{-    yaml_mark_t mark = { 0, 0, 0 };-    yaml_char_t *anchor_copy = NULL;--    assert(event);      /* Non-NULL event object is expected. */-    assert(anchor);     /* Non-NULL anchor is expected. */--    if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0;--    anchor_copy = yaml_strdup(anchor);-    if (!anchor_copy)-        return 0;--    ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark);--    return 1;-}--/*- * Create SCALAR.- */--YAML_DECLARE(int)-yaml_scalar_event_initialize(yaml_event_t *event,-        yaml_char_t *anchor, yaml_char_t *tag,-        yaml_char_t *value, int length,-        int plain_implicit, int quoted_implicit,-        yaml_scalar_style_t style)-{-    yaml_mark_t mark = { 0, 0, 0 };-    yaml_char_t *anchor_copy = NULL;-    yaml_char_t *tag_copy = NULL;-    yaml_char_t *value_copy = NULL;--    assert(event);      /* Non-NULL event object is expected. */-    /* following line added for Haskell yaml library */-    if (!value && !length) value = (unsigned char*)"";-    assert(value);      /* Non-NULL anchor is expected. */--    if (anchor) {-        if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error;-        anchor_copy = yaml_strdup(anchor);-        if (!anchor_copy) goto error;-    }--    if (tag) {-        if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;-        tag_copy = yaml_strdup(tag);-        if (!tag_copy) goto error;-    }--    if (length < 0) {-        length = strlen((char *)value);-    }--    if (!yaml_check_utf8(value, length)) goto error;-    value_copy = YAML_MALLOC(length+1);-    if (!value_copy) goto error;-    memcpy(value_copy, value, length);-    value_copy[length] = '\0';--    SCALAR_EVENT_INIT(*event, anchor_copy, tag_copy, value_copy, length,-            plain_implicit, quoted_implicit, style, mark, mark);--    return 1;--error:-    yaml_free(anchor_copy);-    yaml_free(tag_copy);-    yaml_free(value_copy);--    return 0;-}--/*- * Create SEQUENCE-START.- */--YAML_DECLARE(int)-yaml_sequence_start_event_initialize(yaml_event_t *event,-        yaml_char_t *anchor, yaml_char_t *tag, int implicit,-        yaml_sequence_style_t style)-{-    yaml_mark_t mark = { 0, 0, 0 };-    yaml_char_t *anchor_copy = NULL;-    yaml_char_t *tag_copy = NULL;--    assert(event);      /* Non-NULL event object is expected. */--    if (anchor) {-        if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error;-        anchor_copy = yaml_strdup(anchor);-        if (!anchor_copy) goto error;-    }--    if (tag) {-        if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;-        tag_copy = yaml_strdup(tag);-        if (!tag_copy) goto error;-    }--    SEQUENCE_START_EVENT_INIT(*event, anchor_copy, tag_copy,-            implicit, style, mark, mark);--    return 1;--error:-    yaml_free(anchor_copy);-    yaml_free(tag_copy);--    return 0;-}--/*- * Create SEQUENCE-END.- */--YAML_DECLARE(int)-yaml_sequence_end_event_initialize(yaml_event_t *event)-{-    yaml_mark_t mark = { 0, 0, 0 };--    assert(event);      /* Non-NULL event object is expected. */--    SEQUENCE_END_EVENT_INIT(*event, mark, mark);--    return 1;-}--/*- * Create MAPPING-START.- */--YAML_DECLARE(int)-yaml_mapping_start_event_initialize(yaml_event_t *event,-        yaml_char_t *anchor, yaml_char_t *tag, int implicit,-        yaml_mapping_style_t style)-{-    yaml_mark_t mark = { 0, 0, 0 };-    yaml_char_t *anchor_copy = NULL;-    yaml_char_t *tag_copy = NULL;--    assert(event);      /* Non-NULL event object is expected. */--    if (anchor) {-        if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error;-        anchor_copy = yaml_strdup(anchor);-        if (!anchor_copy) goto error;-    }--    if (tag) {-        if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;-        tag_copy = yaml_strdup(tag);-        if (!tag_copy) goto error;-    }--    MAPPING_START_EVENT_INIT(*event, anchor_copy, tag_copy,-            implicit, style, mark, mark);--    return 1;--error:-    yaml_free(anchor_copy);-    yaml_free(tag_copy);--    return 0;-}--/*- * Create MAPPING-END.- */--YAML_DECLARE(int)-yaml_mapping_end_event_initialize(yaml_event_t *event)-{-    yaml_mark_t mark = { 0, 0, 0 };--    assert(event);      /* Non-NULL event object is expected. */--    MAPPING_END_EVENT_INIT(*event, mark, mark);--    return 1;-}--/*- * Destroy an event object.- */--YAML_DECLARE(void)-yaml_event_delete(yaml_event_t *event)-{-    yaml_tag_directive_t *tag_directive;--    assert(event);  /* Non-NULL event object expected. */--    switch (event->type)-    {-        case YAML_DOCUMENT_START_EVENT:-            yaml_free(event->data.document_start.version_directive);-            for (tag_directive = event->data.document_start.tag_directives.start;-                    tag_directive != event->data.document_start.tag_directives.end;-                    tag_directive++) {-                yaml_free(tag_directive->handle);-                yaml_free(tag_directive->prefix);-            }-            yaml_free(event->data.document_start.tag_directives.start);-            break;--        case YAML_ALIAS_EVENT:-            yaml_free(event->data.alias.anchor);-            break;--        case YAML_SCALAR_EVENT:-            yaml_free(event->data.scalar.anchor);-            yaml_free(event->data.scalar.tag);-            yaml_free(event->data.scalar.value);-            break;--        case YAML_SEQUENCE_START_EVENT:-            yaml_free(event->data.sequence_start.anchor);-            yaml_free(event->data.sequence_start.tag);-            break;--        case YAML_MAPPING_START_EVENT:-            yaml_free(event->data.mapping_start.anchor);-            yaml_free(event->data.mapping_start.tag);-            break;--        default:-            break;-    }--    memset(event, 0, sizeof(yaml_event_t));-}--/*- * Create a document object.- */--YAML_DECLARE(int)-yaml_document_initialize(yaml_document_t *document,-        yaml_version_directive_t *version_directive,-        yaml_tag_directive_t *tag_directives_start,-        yaml_tag_directive_t *tag_directives_end,-        int start_implicit, int end_implicit)-{-    struct {-        yaml_error_type_t error;-    } context;-    struct {-        yaml_node_t *start;-        yaml_node_t *end;-        yaml_node_t *top;-    } nodes = { NULL, NULL, NULL };-    yaml_version_directive_t *version_directive_copy = NULL;-    struct {-        yaml_tag_directive_t *start;-        yaml_tag_directive_t *end;-        yaml_tag_directive_t *top;-    } tag_directives_copy = { NULL, NULL, NULL };-    yaml_tag_directive_t value = { NULL, NULL };-    yaml_mark_t mark = { 0, 0, 0 };--    assert(document);       /* Non-NULL document object is expected. */-    assert((tag_directives_start && tag_directives_end) ||-            (tag_directives_start == tag_directives_end));-                            /* Valid tag directives are expected. */--    if (!STACK_INIT(&context, nodes, yaml_node_t*)) goto error;--    if (version_directive) {-        version_directive_copy = YAML_MALLOC_STATIC(yaml_version_directive_t);-        if (!version_directive_copy) goto error;-        version_directive_copy->major = version_directive->major;-        version_directive_copy->minor = version_directive->minor;-    }--    if (tag_directives_start != tag_directives_end) {-        yaml_tag_directive_t *tag_directive;-        if (!STACK_INIT(&context, tag_directives_copy, yaml_tag_directive_t*))-            goto error;-        for (tag_directive = tag_directives_start;-                tag_directive != tag_directives_end; tag_directive ++) {-            assert(tag_directive->handle);-            assert(tag_directive->prefix);-            if (!yaml_check_utf8(tag_directive->handle,-                        strlen((char *)tag_directive->handle)))-                goto error;-            if (!yaml_check_utf8(tag_directive->prefix,-                        strlen((char *)tag_directive->prefix)))-                goto error;-            value.handle = yaml_strdup(tag_directive->handle);-            value.prefix = yaml_strdup(tag_directive->prefix);-            if (!value.handle || !value.prefix) goto error;-            if (!PUSH(&context, tag_directives_copy, value))-                goto error;-            value.handle = NULL;-            value.prefix = NULL;-        }-    }--    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,-            tag_directives_copy.start, tag_directives_copy.top,-            start_implicit, end_implicit, mark, mark);--    return 1;--error:-    STACK_DEL(&context, nodes);-    yaml_free(version_directive_copy);-    while (!STACK_EMPTY(&context, tag_directives_copy)) {-        yaml_tag_directive_t value = POP(&context, tag_directives_copy);-        yaml_free(value.handle);-        yaml_free(value.prefix);-    }-    STACK_DEL(&context, tag_directives_copy);-    yaml_free(value.handle);-    yaml_free(value.prefix);--    return 0;-}--/*- * Destroy a document object.- */--YAML_DECLARE(void)-yaml_document_delete(yaml_document_t *document)-{-    struct {-        yaml_error_type_t error;-    } context;-    yaml_tag_directive_t *tag_directive;--    context.error = YAML_NO_ERROR;  /* Eliminate a compliler warning. */--    assert(document);   /* Non-NULL document object is expected. */--    while (!STACK_EMPTY(&context, document->nodes)) {-        yaml_node_t node = POP(&context, document->nodes);-        yaml_free(node.tag);-        switch (node.type) {-            case YAML_SCALAR_NODE:-                yaml_free(node.data.scalar.value);-                break;-            case YAML_SEQUENCE_NODE:-                STACK_DEL(&context, node.data.sequence.items);-                break;-            case YAML_MAPPING_NODE:-                STACK_DEL(&context, node.data.mapping.pairs);-                break;-            default:-                assert(0);  /* Should not happen. */-        }-    }-    STACK_DEL(&context, document->nodes);--    yaml_free(document->version_directive);-    for (tag_directive = document->tag_directives.start;-            tag_directive != document->tag_directives.end;-            tag_directive++) {-        yaml_free(tag_directive->handle);-        yaml_free(tag_directive->prefix);-    }-    yaml_free(document->tag_directives.start);--    memset(document, 0, sizeof(yaml_document_t));-}--/**- * Get a document node.- */--YAML_DECLARE(yaml_node_t *)-yaml_document_get_node(yaml_document_t *document, int index)-{-    assert(document);   /* Non-NULL document object is expected. */--    if (index > 0 && document->nodes.start + index <= document->nodes.top) {-        return document->nodes.start + index - 1;-    }-    return NULL;-}--/**- * Get the root object.- */--YAML_DECLARE(yaml_node_t *)-yaml_document_get_root_node(yaml_document_t *document)-{-    assert(document);   /* Non-NULL document object is expected. */--    if (document->nodes.top != document->nodes.start) {-        return document->nodes.start;-    }-    return NULL;-}--/*- * Add a scalar node to a document.- */--YAML_DECLARE(int)-yaml_document_add_scalar(yaml_document_t *document,-        yaml_char_t *tag, yaml_char_t *value, int length,-        yaml_scalar_style_t style)-{-    struct {-        yaml_error_type_t error;-    } context;-    yaml_mark_t mark = { 0, 0, 0 };-    yaml_char_t *tag_copy = NULL;-    yaml_char_t *value_copy = NULL;-    yaml_node_t node;--    assert(document);   /* Non-NULL document object is expected. */-    assert(value);      /* Non-NULL value is expected. */--    if (!tag) {-        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG;-    }--    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;-    tag_copy = yaml_strdup(tag);-    if (!tag_copy) goto error;--    if (length < 0) {-        length = strlen((char *)value);-    }--    if (!yaml_check_utf8(value, length)) goto error;-    value_copy = YAML_MALLOC(length+1);-    if (!value_copy) goto error;-    memcpy(value_copy, value, length);-    value_copy[length] = '\0';--    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark);-    if (!PUSH(&context, document->nodes, node)) goto error;--    return document->nodes.top - document->nodes.start;--error:-    yaml_free(tag_copy);-    yaml_free(value_copy);--    return 0;-}--/*- * Add a sequence node to a document.- */--YAML_DECLARE(int)-yaml_document_add_sequence(yaml_document_t *document,-        yaml_char_t *tag, yaml_sequence_style_t style)-{-    struct {-        yaml_error_type_t error;-    } context;-    yaml_mark_t mark = { 0, 0, 0 };-    yaml_char_t *tag_copy = NULL;-    struct {-        yaml_node_item_t *start;-        yaml_node_item_t *end;-        yaml_node_item_t *top;-    } items = { NULL, NULL, NULL };-    yaml_node_t node;--    assert(document);   /* Non-NULL document object is expected. */--    if (!tag) {-        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG;-    }--    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;-    tag_copy = yaml_strdup(tag);-    if (!tag_copy) goto error;--    if (!STACK_INIT(&context, items, yaml_node_item_t*)) goto error;--    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,-            style, mark, mark);-    if (!PUSH(&context, document->nodes, node)) goto error;--    return document->nodes.top - document->nodes.start;--error:-    STACK_DEL(&context, items);-    yaml_free(tag_copy);--    return 0;-}--/*- * Add a mapping node to a document.- */--YAML_DECLARE(int)-yaml_document_add_mapping(yaml_document_t *document,-        yaml_char_t *tag, yaml_mapping_style_t style)-{-    struct {-        yaml_error_type_t error;-    } context;-    yaml_mark_t mark = { 0, 0, 0 };-    yaml_char_t *tag_copy = NULL;-    struct {-        yaml_node_pair_t *start;-        yaml_node_pair_t *end;-        yaml_node_pair_t *top;-    } pairs = { NULL, NULL, NULL };-    yaml_node_t node;--    assert(document);   /* Non-NULL document object is expected. */--    if (!tag) {-        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG;-    }--    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;-    tag_copy = yaml_strdup(tag);-    if (!tag_copy) goto error;--    if (!STACK_INIT(&context, pairs, yaml_node_pair_t*)) goto error;--    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,-            style, mark, mark);-    if (!PUSH(&context, document->nodes, node)) goto error;--    return document->nodes.top - document->nodes.start;--error:-    STACK_DEL(&context, pairs);-    yaml_free(tag_copy);--    return 0;-}--/*- * Append an item to a sequence node.- */--YAML_DECLARE(int)-yaml_document_append_sequence_item(yaml_document_t *document,-        int sequence, int item)-{-    struct {-        yaml_error_type_t error;-    } context;--    assert(document);       /* Non-NULL document is required. */-    assert(sequence > 0-            && document->nodes.start + sequence <= document->nodes.top);-                            /* Valid sequence id is required. */-    assert(document->nodes.start[sequence-1].type == YAML_SEQUENCE_NODE);-                            /* A sequence node is required. */-    assert(item > 0 && document->nodes.start + item <= document->nodes.top);-                            /* Valid item id is required. */--    if (!PUSH(&context,-                document->nodes.start[sequence-1].data.sequence.items, item))-        return 0;--    return 1;-}--/*- * Append a pair of a key and a value to a mapping node.- */--YAML_DECLARE(int)-yaml_document_append_mapping_pair(yaml_document_t *document,-        int mapping, int key, int value)-{-    struct {-        yaml_error_type_t error;-    } context;--    yaml_node_pair_t pair;--    assert(document);       /* Non-NULL document is required. */-    assert(mapping > 0-            && document->nodes.start + mapping <= document->nodes.top);-                            /* Valid mapping id is required. */-    assert(document->nodes.start[mapping-1].type == YAML_MAPPING_NODE);-                            /* A mapping node is required. */-    assert(key > 0 && document->nodes.start + key <= document->nodes.top);-                            /* Valid key id is required. */-    assert(value > 0 && document->nodes.start + value <= document->nodes.top);-                            /* Valid value id is required. */--    pair.key = key;-    pair.value = value;--    if (!PUSH(&context,-                document->nodes.start[mapping-1].data.mapping.pairs, pair))-        return 0;--    return 1;-}--
− libyaml/dumper.c 
@@ -1,394 +0,0 @@--#include "yaml_private.h"--/*- * API functions.- */--YAML_DECLARE(int)-yaml_emitter_open(yaml_emitter_t *emitter);--YAML_DECLARE(int)-yaml_emitter_close(yaml_emitter_t *emitter);--YAML_DECLARE(int)-yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document);--/*- * Clean up functions.- */--static void-yaml_emitter_delete_document_and_anchors(yaml_emitter_t *emitter);--/*- * Anchor functions.- */--static void-yaml_emitter_anchor_node(yaml_emitter_t *emitter, int index);--static yaml_char_t *-yaml_emitter_generate_anchor(yaml_emitter_t *emitter, int anchor_id);---/*- * Serialize functions.- */--static int-yaml_emitter_dump_node(yaml_emitter_t *emitter, int index);--static int-yaml_emitter_dump_alias(yaml_emitter_t *emitter, yaml_char_t *anchor);--static int-yaml_emitter_dump_scalar(yaml_emitter_t *emitter, yaml_node_t *node,-        yaml_char_t *anchor);--static int-yaml_emitter_dump_sequence(yaml_emitter_t *emitter, yaml_node_t *node,-        yaml_char_t *anchor);--static int-yaml_emitter_dump_mapping(yaml_emitter_t *emitter, yaml_node_t *node,-        yaml_char_t *anchor);--/*- * Issue a STREAM-START event.- */--YAML_DECLARE(int)-yaml_emitter_open(yaml_emitter_t *emitter)-{-    yaml_event_t event;-    yaml_mark_t mark = { 0, 0, 0 };--    assert(emitter);            /* Non-NULL emitter object is required. */-    assert(!emitter->opened);   /* Emitter should not be opened yet. */--    STREAM_START_EVENT_INIT(event, YAML_ANY_ENCODING, mark, mark);--    if (!yaml_emitter_emit(emitter, &event)) {-        return 0;-    }--    emitter->opened = 1;--    return 1;-}--/*- * Issue a STREAM-END event.- */--YAML_DECLARE(int)-yaml_emitter_close(yaml_emitter_t *emitter)-{-    yaml_event_t event;-    yaml_mark_t mark = { 0, 0, 0 };--    assert(emitter);            /* Non-NULL emitter object is required. */-    assert(emitter->opened);    /* Emitter should be opened. */--    if (emitter->closed) return 1;--    STREAM_END_EVENT_INIT(event, mark, mark);--    if (!yaml_emitter_emit(emitter, &event)) {-        return 0;-    }--    emitter->closed = 1;--    return 1;-}--/*- * Dump a YAML document.- */--YAML_DECLARE(int)-yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document)-{-    yaml_event_t event;-    yaml_mark_t mark = { 0, 0, 0 };--    assert(emitter);            /* Non-NULL emitter object is required. */-    assert(document);           /* Non-NULL emitter object is expected. */--    emitter->document = document;--    if (!emitter->opened) {-        if (!yaml_emitter_open(emitter)) goto error;-    }--    if (STACK_EMPTY(emitter, document->nodes)) {-        if (!yaml_emitter_close(emitter)) goto error;-        yaml_emitter_delete_document_and_anchors(emitter);-        return 1;-    }--    assert(emitter->opened);    /* Emitter should be opened. */--    emitter->anchors = yaml_malloc(sizeof(*(emitter->anchors))-            * (document->nodes.top - document->nodes.start));-    if (!emitter->anchors) goto error;-    memset(emitter->anchors, 0, sizeof(*(emitter->anchors))-            * (document->nodes.top - document->nodes.start));--    DOCUMENT_START_EVENT_INIT(event, document->version_directive,-            document->tag_directives.start, document->tag_directives.end,-            document->start_implicit, mark, mark);-    if (!yaml_emitter_emit(emitter, &event)) goto error;--    yaml_emitter_anchor_node(emitter, 1);-    if (!yaml_emitter_dump_node(emitter, 1)) goto error;--    DOCUMENT_END_EVENT_INIT(event, document->end_implicit, mark, mark);-    if (!yaml_emitter_emit(emitter, &event)) goto error;--    yaml_emitter_delete_document_and_anchors(emitter);--    return 1;--error:--    yaml_emitter_delete_document_and_anchors(emitter);--    return 0;-}--/*- * Clean up the emitter object after a document is dumped.- */--static void-yaml_emitter_delete_document_and_anchors(yaml_emitter_t *emitter)-{-    int index;--    if (!emitter->anchors) {-        yaml_document_delete(emitter->document);-        emitter->document = NULL;-        return;-    }--    for (index = 0; emitter->document->nodes.start + index-            < emitter->document->nodes.top; index ++) {-        yaml_node_t node = emitter->document->nodes.start[index];-        if (!emitter->anchors[index].serialized) {-            yaml_free(node.tag);-            if (node.type == YAML_SCALAR_NODE) {-                yaml_free(node.data.scalar.value);-            }-        }-        if (node.type == YAML_SEQUENCE_NODE) {-            STACK_DEL(emitter, node.data.sequence.items);-        }-        if (node.type == YAML_MAPPING_NODE) {-            STACK_DEL(emitter, node.data.mapping.pairs);-        }-    }--    STACK_DEL(emitter, emitter->document->nodes);-    yaml_free(emitter->anchors);--    emitter->anchors = NULL;-    emitter->last_anchor_id = 0;-    emitter->document = NULL;-}--/*- * Check the references of a node and assign the anchor id if needed.- */--static void-yaml_emitter_anchor_node(yaml_emitter_t *emitter, int index)-{-    yaml_node_t *node = emitter->document->nodes.start + index - 1;-    yaml_node_item_t *item;-    yaml_node_pair_t *pair;--    emitter->anchors[index-1].references ++;--    if (emitter->anchors[index-1].references == 1) {-        switch (node->type) {-            case YAML_SEQUENCE_NODE:-                for (item = node->data.sequence.items.start;-                        item < node->data.sequence.items.top; item ++) {-                    yaml_emitter_anchor_node(emitter, *item);-                }-                break;-            case YAML_MAPPING_NODE:-                for (pair = node->data.mapping.pairs.start;-                        pair < node->data.mapping.pairs.top; pair ++) {-                    yaml_emitter_anchor_node(emitter, pair->key);-                    yaml_emitter_anchor_node(emitter, pair->value);-                }-                break;-            default:-                break;-        }-    }--    else if (emitter->anchors[index-1].references == 2) {-        emitter->anchors[index-1].anchor = (++ emitter->last_anchor_id);-    }-}--/*- * Generate a textual representation for an anchor.- */--#define ANCHOR_TEMPLATE         "id%03d"-#define ANCHOR_TEMPLATE_LENGTH  16--static yaml_char_t *-yaml_emitter_generate_anchor(SHIM(yaml_emitter_t *emitter), int anchor_id)-{-    yaml_char_t *anchor = YAML_MALLOC(ANCHOR_TEMPLATE_LENGTH);--    if (!anchor) return NULL;--    sprintf((char *)anchor, ANCHOR_TEMPLATE, anchor_id);--    return anchor;-}--/*- * Serialize a node.- */--static int-yaml_emitter_dump_node(yaml_emitter_t *emitter, int index)-{-    yaml_node_t *node = emitter->document->nodes.start + index - 1;-    int anchor_id = emitter->anchors[index-1].anchor;-    yaml_char_t *anchor = NULL;--    if (anchor_id) {-        anchor = yaml_emitter_generate_anchor(emitter, anchor_id);-        if (!anchor) return 0;-    }--    if (emitter->anchors[index-1].serialized) {-        return yaml_emitter_dump_alias(emitter, anchor);-    }--    emitter->anchors[index-1].serialized = 1;--    switch (node->type) {-        case YAML_SCALAR_NODE:-            return yaml_emitter_dump_scalar(emitter, node, anchor);-        case YAML_SEQUENCE_NODE:-            return yaml_emitter_dump_sequence(emitter, node, anchor);-        case YAML_MAPPING_NODE:-            return yaml_emitter_dump_mapping(emitter, node, anchor);-        default:-            assert(0);      /* Could not happen. */-            break;-    }--    return 0;       /* Could not happen. */-}--/*- * Serialize an alias.- */--static int-yaml_emitter_dump_alias(yaml_emitter_t *emitter, yaml_char_t *anchor)-{-    yaml_event_t event;-    yaml_mark_t mark  = { 0, 0, 0 };--    ALIAS_EVENT_INIT(event, anchor, mark, mark);--    return yaml_emitter_emit(emitter, &event);-}--/*- * Serialize a scalar.- */--static int-yaml_emitter_dump_scalar(yaml_emitter_t *emitter, yaml_node_t *node,-        yaml_char_t *anchor)-{-    yaml_event_t event;-    yaml_mark_t mark  = { 0, 0, 0 };--    int plain_implicit = (strcmp((char *)node->tag,-                YAML_DEFAULT_SCALAR_TAG) == 0);-    int quoted_implicit = (strcmp((char *)node->tag,-                YAML_DEFAULT_SCALAR_TAG) == 0);--    SCALAR_EVENT_INIT(event, anchor, node->tag, node->data.scalar.value,-            node->data.scalar.length, plain_implicit, quoted_implicit,-            node->data.scalar.style, mark, mark);--    return yaml_emitter_emit(emitter, &event);-}--/*- * Serialize a sequence.- */--static int-yaml_emitter_dump_sequence(yaml_emitter_t *emitter, yaml_node_t *node,-        yaml_char_t *anchor)-{-    yaml_event_t event;-    yaml_mark_t mark  = { 0, 0, 0 };--    int implicit = (strcmp((char *)node->tag, YAML_DEFAULT_SEQUENCE_TAG) == 0);--    yaml_node_item_t *item;--    SEQUENCE_START_EVENT_INIT(event, anchor, node->tag, implicit,-            node->data.sequence.style, mark, mark);-    if (!yaml_emitter_emit(emitter, &event)) return 0;--    for (item = node->data.sequence.items.start;-            item < node->data.sequence.items.top; item ++) {-        if (!yaml_emitter_dump_node(emitter, *item)) return 0;-    }--    SEQUENCE_END_EVENT_INIT(event, mark, mark);-    if (!yaml_emitter_emit(emitter, &event)) return 0;--    return 1;-}--/*- * Serialize a mapping.- */--static int-yaml_emitter_dump_mapping(yaml_emitter_t *emitter, yaml_node_t *node,-        yaml_char_t *anchor)-{-    yaml_event_t event;-    yaml_mark_t mark  = { 0, 0, 0 };--    int implicit = (strcmp((char *)node->tag, YAML_DEFAULT_MAPPING_TAG) == 0);--    yaml_node_pair_t *pair;--    MAPPING_START_EVENT_INIT(event, anchor, node->tag, implicit,-            node->data.mapping.style, mark, mark);-    if (!yaml_emitter_emit(emitter, &event)) return 0;--    for (pair = node->data.mapping.pairs.start;-            pair < node->data.mapping.pairs.top; pair ++) {-        if (!yaml_emitter_dump_node(emitter, pair->key)) return 0;-        if (!yaml_emitter_dump_node(emitter, pair->value)) return 0;-    }--    MAPPING_END_EVENT_INIT(event, mark, mark);-    if (!yaml_emitter_emit(emitter, &event)) return 0;--    return 1;-}-
− libyaml/emitter.c 
@@ -1,2324 +0,0 @@--#include "yaml_private.h"--/*- * Flush the buffer if needed.- */--#define FLUSH(emitter)                                                          \-    ((emitter->buffer.pointer+5 < emitter->buffer.end)                          \-     || yaml_emitter_flush(emitter))--/*- * Put a character to the output buffer.- */--#define PUT(emitter,value)                                                      \-    (FLUSH(emitter)                                                             \-     && (*(emitter->buffer.pointer++) = (yaml_char_t)(value),                   \-         emitter->column ++,                                                    \-         1))--/*- * Put a line break to the output buffer.- */--#define PUT_BREAK(emitter)                                                      \-    (FLUSH(emitter)                                                             \-     && ((emitter->line_break == YAML_CR_BREAK ?                                \-             (*(emitter->buffer.pointer++) = (yaml_char_t) '\r') :              \-          emitter->line_break == YAML_LN_BREAK ?                                \-             (*(emitter->buffer.pointer++) = (yaml_char_t) '\n') :              \-          emitter->line_break == YAML_CRLN_BREAK ?                              \-             (*(emitter->buffer.pointer++) = (yaml_char_t) '\r',                \-              *(emitter->buffer.pointer++) = (yaml_char_t) '\n') : 0),          \-         emitter->column = 0,                                                   \-         emitter->line ++,                                                      \-         1))--/*- * Copy a character from a string into buffer.- */--#define WRITE(emitter,string)                                                   \-    (FLUSH(emitter)                                                             \-     && (COPY(emitter->buffer,string),                                          \-         emitter->column ++,                                                    \-         1))--/*- * Copy a line break character from a string into buffer.- */--#define WRITE_BREAK(emitter,string)                                             \-    (FLUSH(emitter)                                                             \-     && (CHECK(string,'\n') ?                                                   \-         (PUT_BREAK(emitter),                                                   \-          string.pointer ++,                                                    \-          1) :                                                                  \-         (COPY(emitter->buffer,string),                                         \-          emitter->column = 0,                                                  \-          emitter->line ++,                                                     \-          1)))--/*- * API functions.- */--YAML_DECLARE(int)-yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event);--/*- * Utility functions.- */--static int-yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem);--static int-yaml_emitter_need_more_events(yaml_emitter_t *emitter);--static int-yaml_emitter_append_tag_directive(yaml_emitter_t *emitter,-        yaml_tag_directive_t value, int allow_duplicates);--static int-yaml_emitter_increase_indent(yaml_emitter_t *emitter,-        int flow, int indentless);--/*- * State functions.- */--static int-yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event);--static int-yaml_emitter_emit_stream_start(yaml_emitter_t *emitter,-        yaml_event_t *event);--static int-yaml_emitter_emit_document_start(yaml_emitter_t *emitter,-        yaml_event_t *event, int first);--static int-yaml_emitter_emit_document_content(yaml_emitter_t *emitter,-        yaml_event_t *event);--static int-yaml_emitter_emit_document_end(yaml_emitter_t *emitter,-        yaml_event_t *event);--static int-yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter,-        yaml_event_t *event, int first);--static int-yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter,-        yaml_event_t *event, int first);--static int-yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter,-        yaml_event_t *event, int simple);--static int-yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter,-        yaml_event_t *event, int first);--static int-yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter,-        yaml_event_t *event, int first);--static int-yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter,-        yaml_event_t *event, int simple);--static int-yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event,-        int root, int sequence, int mapping, int simple_key);--static int-yaml_emitter_emit_alias(yaml_emitter_t *emitter, yaml_event_t *event);--static int-yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event);--static int-yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event);--static int-yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event);--/*- * Checkers.- */--static int-yaml_emitter_check_empty_document(yaml_emitter_t *emitter);--static int-yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter);--static int-yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter);--static int-yaml_emitter_check_simple_key(yaml_emitter_t *emitter);--static int-yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event);--/*- * Processors.- */--static int-yaml_emitter_process_anchor(yaml_emitter_t *emitter);--static int-yaml_emitter_process_tag(yaml_emitter_t *emitter);--static int-yaml_emitter_process_scalar(yaml_emitter_t *emitter);--/*- * Analyzers.- */--static int-yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter,-        yaml_version_directive_t version_directive);--static int-yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter,-        yaml_tag_directive_t tag_directive);--static int-yaml_emitter_analyze_anchor(yaml_emitter_t *emitter,-        yaml_char_t *anchor, int alias);--static int-yaml_emitter_analyze_tag(yaml_emitter_t *emitter,-        yaml_char_t *tag);--static int-yaml_emitter_analyze_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length);--static int-yaml_emitter_analyze_event(yaml_emitter_t *emitter,-        yaml_event_t *event);--/*- * Writers.- */--static int-yaml_emitter_write_bom(yaml_emitter_t *emitter);--static int-yaml_emitter_write_indent(yaml_emitter_t *emitter);--static int-yaml_emitter_write_indicator(yaml_emitter_t *emitter,-        char *indicator, int need_whitespace,-        int is_whitespace, int is_indention);--static int-yaml_emitter_write_anchor(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length);--static int-yaml_emitter_write_tag_handle(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length);--static int-yaml_emitter_write_tag_content(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length, int need_whitespace);--static int-yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length, int allow_breaks);--static int-yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length, int allow_breaks);--static int-yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length, int allow_breaks);--static int-yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter,-        yaml_string_t string);--static int-yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length);--static int-yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length);--/*- * Set an emitter error and return 0.- */--static int-yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem)-{-    emitter->error = YAML_EMITTER_ERROR;-    emitter->problem = problem;--    return 0;-}--/*- * Emit an event.- */--YAML_DECLARE(int)-yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event)-{-    if (!ENQUEUE(emitter, emitter->events, *event)) {-        yaml_event_delete(event);-        return 0;-    }--    while (!yaml_emitter_need_more_events(emitter)) {-        if (!yaml_emitter_analyze_event(emitter, emitter->events.head))-            return 0;-        if (!yaml_emitter_state_machine(emitter, emitter->events.head))-            return 0;-        yaml_event_delete(&DEQUEUE(emitter, emitter->events));-    }--    return 1;-}--/*- * Check if we need to accumulate more events before emitting.- *- * We accumulate extra- *  - 1 event for DOCUMENT-START- *  - 2 events for SEQUENCE-START- *  - 3 events for MAPPING-START- */--static int-yaml_emitter_need_more_events(yaml_emitter_t *emitter)-{-    int level = 0;-    int accumulate = 0;-    yaml_event_t *event;--    if (QUEUE_EMPTY(emitter, emitter->events))-        return 1;--    switch (emitter->events.head->type) {-        case YAML_DOCUMENT_START_EVENT:-            accumulate = 1;-            break;-        case YAML_SEQUENCE_START_EVENT:-            accumulate = 2;-            break;-        case YAML_MAPPING_START_EVENT:-            accumulate = 3;-            break;-        default:-            return 0;-    }--    if (emitter->events.tail - emitter->events.head > accumulate)-        return 0;--    for (event = emitter->events.head; event != emitter->events.tail; event ++) {-        switch (event->type) {-            case YAML_STREAM_START_EVENT:-            case YAML_DOCUMENT_START_EVENT:-            case YAML_SEQUENCE_START_EVENT:-            case YAML_MAPPING_START_EVENT:-                level += 1;-                break;-            case YAML_STREAM_END_EVENT:-            case YAML_DOCUMENT_END_EVENT:-            case YAML_SEQUENCE_END_EVENT:-            case YAML_MAPPING_END_EVENT:-                level -= 1;-                break;-            default:-                break;-        }-        if (!level)-            return 0;-    }--    return 1;-}--/*- * Append a directive to the directives stack.- */--static int-yaml_emitter_append_tag_directive(yaml_emitter_t *emitter,-        yaml_tag_directive_t value, int allow_duplicates)-{-    yaml_tag_directive_t *tag_directive;-    yaml_tag_directive_t copy = { NULL, NULL };--    for (tag_directive = emitter->tag_directives.start;-            tag_directive != emitter->tag_directives.top; tag_directive ++) {-        if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) {-            if (allow_duplicates)-                return 1;-            return yaml_emitter_set_emitter_error(emitter,-                    "duplicate %TAG directive");-        }-    }--    copy.handle = yaml_strdup(value.handle);-    copy.prefix = yaml_strdup(value.prefix);-    if (!copy.handle || !copy.prefix) {-        emitter->error = YAML_MEMORY_ERROR;-        goto error;-    }--    if (!PUSH(emitter, emitter->tag_directives, copy))-        goto error;--    return 1;--error:-    yaml_free(copy.handle);-    yaml_free(copy.prefix);-    return 0;-}--/*- * Increase the indentation level.- */--static int-yaml_emitter_increase_indent(yaml_emitter_t *emitter,-        int flow, int indentless)-{-    if (!PUSH(emitter, emitter->indents, emitter->indent))-        return 0;--    if (emitter->indent < 0) {-        emitter->indent = flow ? emitter->best_indent : 0;-    }-    else if (!indentless) {-        emitter->indent += emitter->best_indent;-    }--    return 1;-}--/*- * State dispatcher.- */--static int-yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event)-{-    switch (emitter->state)-    {-        case YAML_EMIT_STREAM_START_STATE:-            return yaml_emitter_emit_stream_start(emitter, event);--        case YAML_EMIT_FIRST_DOCUMENT_START_STATE:-            return yaml_emitter_emit_document_start(emitter, event, 1);--        case YAML_EMIT_DOCUMENT_START_STATE:-            return yaml_emitter_emit_document_start(emitter, event, 0);--        case YAML_EMIT_DOCUMENT_CONTENT_STATE:-            return yaml_emitter_emit_document_content(emitter, event);--        case YAML_EMIT_DOCUMENT_END_STATE:-            return yaml_emitter_emit_document_end(emitter, event);--        case YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE:-            return yaml_emitter_emit_flow_sequence_item(emitter, event, 1);--        case YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE:-            return yaml_emitter_emit_flow_sequence_item(emitter, event, 0);--        case YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE:-            return yaml_emitter_emit_flow_mapping_key(emitter, event, 1);--        case YAML_EMIT_FLOW_MAPPING_KEY_STATE:-            return yaml_emitter_emit_flow_mapping_key(emitter, event, 0);--        case YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE:-            return yaml_emitter_emit_flow_mapping_value(emitter, event, 1);--        case YAML_EMIT_FLOW_MAPPING_VALUE_STATE:-            return yaml_emitter_emit_flow_mapping_value(emitter, event, 0);--        case YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE:-            return yaml_emitter_emit_block_sequence_item(emitter, event, 1);--        case YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE:-            return yaml_emitter_emit_block_sequence_item(emitter, event, 0);--        case YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE:-            return yaml_emitter_emit_block_mapping_key(emitter, event, 1);--        case YAML_EMIT_BLOCK_MAPPING_KEY_STATE:-            return yaml_emitter_emit_block_mapping_key(emitter, event, 0);--        case YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE:-            return yaml_emitter_emit_block_mapping_value(emitter, event, 1);--        case YAML_EMIT_BLOCK_MAPPING_VALUE_STATE:-            return yaml_emitter_emit_block_mapping_value(emitter, event, 0);--        case YAML_EMIT_END_STATE:-            return yaml_emitter_set_emitter_error(emitter,-                    "expected nothing after STREAM-END");--        default:-            assert(1);      /* Invalid state. */-    }--    return 0;-}--/*- * Expect STREAM-START.- */--static int-yaml_emitter_emit_stream_start(yaml_emitter_t *emitter,-        yaml_event_t *event)-{-    if (event->type == YAML_STREAM_START_EVENT)-    {-        if (!emitter->encoding) {-            emitter->encoding = event->data.stream_start.encoding;-        }--        if (!emitter->encoding) {-            emitter->encoding = YAML_UTF8_ENCODING;-        }--        if (emitter->best_indent < 2 || emitter->best_indent > 9) {-            emitter->best_indent  = 2;-        }--        if (emitter->best_width >= 0-                && emitter->best_width <= emitter->best_indent*2) {-            emitter->best_width = 80;-        }--        if (emitter->best_width < 0) {-            emitter->best_width = INT_MAX;-        }--        if (!emitter->line_break) {-            emitter->line_break = YAML_LN_BREAK;-        }--        emitter->indent = -1;--        emitter->line = 0;-        emitter->column = 0;-        emitter->whitespace = 1;-        emitter->indention = 1;--        if (emitter->encoding != YAML_UTF8_ENCODING) {-            if (!yaml_emitter_write_bom(emitter))-                return 0;-        }--        emitter->state = YAML_EMIT_FIRST_DOCUMENT_START_STATE;--        return 1;-    }--    return yaml_emitter_set_emitter_error(emitter,-            "expected STREAM-START");-}--/*- * Expect DOCUMENT-START or STREAM-END.- */--static int-yaml_emitter_emit_document_start(yaml_emitter_t *emitter,-        yaml_event_t *event, int first)-{-    if (event->type == YAML_DOCUMENT_START_EVENT)-    {-        yaml_tag_directive_t default_tag_directives[] = {-            {(yaml_char_t *)"!", (yaml_char_t *)"!"},-            {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"},-            {NULL, NULL}-        };-        yaml_tag_directive_t *tag_directive;-        int implicit;--        if (event->data.document_start.version_directive) {-            if (!yaml_emitter_analyze_version_directive(emitter,-                        *event->data.document_start.version_directive))-                return 0;-        }--        for (tag_directive = event->data.document_start.tag_directives.start;-                tag_directive != event->data.document_start.tag_directives.end;-                tag_directive ++) {-            if (!yaml_emitter_analyze_tag_directive(emitter, *tag_directive))-                return 0;-            if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 0))-                return 0;-        }--        for (tag_directive = default_tag_directives;-                tag_directive->handle; tag_directive ++) {-            if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 1))-                return 0;-        }--        implicit = event->data.document_start.implicit;-        if (!first || emitter->canonical) {-            implicit = 0;-        }--        if ((event->data.document_start.version_directive ||-                    (event->data.document_start.tag_directives.start-                     != event->data.document_start.tag_directives.end)) &&-                emitter->open_ended)-        {-            if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0))-                return 0;-            if (!yaml_emitter_write_indent(emitter))-                return 0;-        }--        if (event->data.document_start.version_directive) {-            implicit = 0;-            if (!yaml_emitter_write_indicator(emitter, "%YAML", 1, 0, 0))-                return 0;-            if (!yaml_emitter_write_indicator(emitter, "1.1", 1, 0, 0))-                return 0;-            if (!yaml_emitter_write_indent(emitter))-                return 0;-        }--        if (event->data.document_start.tag_directives.start-                != event->data.document_start.tag_directives.end) {-            implicit = 0;-            for (tag_directive = event->data.document_start.tag_directives.start;-                    tag_directive != event->data.document_start.tag_directives.end;-                    tag_directive ++) {-                if (!yaml_emitter_write_indicator(emitter, "%TAG", 1, 0, 0))-                    return 0;-                if (!yaml_emitter_write_tag_handle(emitter, tag_directive->handle,-                            strlen((char *)tag_directive->handle)))-                    return 0;-                if (!yaml_emitter_write_tag_content(emitter, tag_directive->prefix,-                            strlen((char *)tag_directive->prefix), 1))-                    return 0;-                if (!yaml_emitter_write_indent(emitter))-                    return 0;-            }-        }--        if (yaml_emitter_check_empty_document(emitter)) {-            implicit = 0;-        }--        if (!implicit) {-            if (!yaml_emitter_write_indent(emitter))-                return 0;-            if (!yaml_emitter_write_indicator(emitter, "---", 1, 0, 0))-                return 0;-            if (emitter->canonical) {-                if (!yaml_emitter_write_indent(emitter))-                    return 0;-            }-        }--        emitter->state = YAML_EMIT_DOCUMENT_CONTENT_STATE;--        return 1;-    }--    else if (event->type == YAML_STREAM_END_EVENT)-    {-        if (emitter->open_ended)-        {-            if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0))-                return 0;-            if (!yaml_emitter_write_indent(emitter))-                return 0;-        }--        if (!yaml_emitter_flush(emitter))-            return 0;--        emitter->state = YAML_EMIT_END_STATE;--        return 1;-    }--    return yaml_emitter_set_emitter_error(emitter,-            "expected DOCUMENT-START or STREAM-END");-}--/*- * Expect the root node.- */--static int-yaml_emitter_emit_document_content(yaml_emitter_t *emitter,-        yaml_event_t *event)-{-    if (!PUSH(emitter, emitter->states, YAML_EMIT_DOCUMENT_END_STATE))-        return 0;--    return yaml_emitter_emit_node(emitter, event, 1, 0, 0, 0);-}--/*- * Expect DOCUMENT-END.- */--static int-yaml_emitter_emit_document_end(yaml_emitter_t *emitter,-        yaml_event_t *event)-{-    if (event->type == YAML_DOCUMENT_END_EVENT)-    {-        if (!yaml_emitter_write_indent(emitter))-            return 0;-        if (!event->data.document_end.implicit) {-            if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0))-                return 0;-            if (!yaml_emitter_write_indent(emitter))-                return 0;-        }-        if (!yaml_emitter_flush(emitter))-            return 0;--        emitter->state = YAML_EMIT_DOCUMENT_START_STATE;--        while (!STACK_EMPTY(emitter, emitter->tag_directives)) {-            yaml_tag_directive_t tag_directive = POP(emitter,-                    emitter->tag_directives);-            yaml_free(tag_directive.handle);-            yaml_free(tag_directive.prefix);-        }--        return 1;-    }--    return yaml_emitter_set_emitter_error(emitter,-            "expected DOCUMENT-END");-}--/*- *- * Expect a flow item node.- */--static int-yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter,-        yaml_event_t *event, int first)-{-    if (first)-    {-        if (!yaml_emitter_write_indicator(emitter, "[", 1, 1, 0))-            return 0;-        if (!yaml_emitter_increase_indent(emitter, 1, 0))-            return 0;-        emitter->flow_level ++;-    }--    if (event->type == YAML_SEQUENCE_END_EVENT)-    {-        emitter->flow_level --;-        emitter->indent = POP(emitter, emitter->indents);-        if (emitter->canonical && !first) {-            if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0))-                return 0;-            if (!yaml_emitter_write_indent(emitter))-                return 0;-        }-        if (!yaml_emitter_write_indicator(emitter, "]", 0, 0, 0))-            return 0;-        emitter->state = POP(emitter, emitter->states);--        return 1;-    }--    if (!first) {-        if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0))-            return 0;-    }--    if (emitter->canonical || emitter->column > emitter->best_width) {-        if (!yaml_emitter_write_indent(emitter))-            return 0;-    }-    if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE))-        return 0;--    return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0);-}--/*- * Expect a flow key node.- */--static int-yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter,-        yaml_event_t *event, int first)-{-    if (first)-    {-        if (!yaml_emitter_write_indicator(emitter, "{", 1, 1, 0))-            return 0;-        if (!yaml_emitter_increase_indent(emitter, 1, 0))-            return 0;-        emitter->flow_level ++;-    }--    if (event->type == YAML_MAPPING_END_EVENT)-    {-        emitter->flow_level --;-        emitter->indent = POP(emitter, emitter->indents);-        if (emitter->canonical && !first) {-            if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0))-                return 0;-            if (!yaml_emitter_write_indent(emitter))-                return 0;-        }-        if (!yaml_emitter_write_indicator(emitter, "}", 0, 0, 0))-            return 0;-        emitter->state = POP(emitter, emitter->states);--        return 1;-    }--    if (!first) {-        if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0))-            return 0;-    }-    if (emitter->canonical || emitter->column > emitter->best_width) {-        if (!yaml_emitter_write_indent(emitter))-            return 0;-    }--    if (!emitter->canonical && yaml_emitter_check_simple_key(emitter))-    {-        if (!PUSH(emitter, emitter->states,-                    YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE))-            return 0;--        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1);-    }-    else-    {-        if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 0))-            return 0;-        if (!PUSH(emitter, emitter->states,-                    YAML_EMIT_FLOW_MAPPING_VALUE_STATE))-            return 0;--        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0);-    }-}--/*- * Expect a flow value node.- */--static int-yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter,-        yaml_event_t *event, int simple)-{-    if (simple) {-        if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0))-            return 0;-    }-    else {-        if (emitter->canonical || emitter->column > emitter->best_width) {-            if (!yaml_emitter_write_indent(emitter))-                return 0;-        }-        if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 0))-            return 0;-    }-    if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_MAPPING_KEY_STATE))-        return 0;-    return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0);-}--/*- * Expect a block item node.- */--static int-yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter,-        yaml_event_t *event, int first)-{-    if (first)-    {-        if (!yaml_emitter_increase_indent(emitter, 0,-                    (emitter->mapping_context && !emitter->indention)))-            return 0;-    }--    if (event->type == YAML_SEQUENCE_END_EVENT)-    {-        emitter->indent = POP(emitter, emitter->indents);-        emitter->state = POP(emitter, emitter->states);--        return 1;-    }--    if (!yaml_emitter_write_indent(emitter))-        return 0;-    if (!yaml_emitter_write_indicator(emitter, "-", 1, 0, 1))-        return 0;-    if (!PUSH(emitter, emitter->states,-                YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE))-        return 0;--    return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0);-}--/*- * Expect a block key node.- */--static int-yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter,-        yaml_event_t *event, int first)-{-    if (first)-    {-        if (!yaml_emitter_increase_indent(emitter, 0, 0))-            return 0;-    }--    if (event->type == YAML_MAPPING_END_EVENT)-    {-        emitter->indent = POP(emitter, emitter->indents);-        emitter->state = POP(emitter, emitter->states);--        return 1;-    }--    if (!yaml_emitter_write_indent(emitter))-        return 0;--    if (yaml_emitter_check_simple_key(emitter))-    {-        if (!PUSH(emitter, emitter->states,-                    YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE))-            return 0;--        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1);-    }-    else-    {-        if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 1))-            return 0;-        if (!PUSH(emitter, emitter->states,-                    YAML_EMIT_BLOCK_MAPPING_VALUE_STATE))-            return 0;--        return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0);-    }-}--/*- * Expect a block value node.- */--static int-yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter,-        yaml_event_t *event, int simple)-{-    if (simple) {-        if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0))-            return 0;-    }-    else {-        if (!yaml_emitter_write_indent(emitter))-            return 0;-        if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 1))-            return 0;-    }-    if (!PUSH(emitter, emitter->states,-                YAML_EMIT_BLOCK_MAPPING_KEY_STATE))-        return 0;--    return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0);-}--/*- * Expect a node.- */--static int-yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event,-        int root, int sequence, int mapping, int simple_key)-{-    emitter->root_context = root;-    emitter->sequence_context = sequence;-    emitter->mapping_context = mapping;-    emitter->simple_key_context = simple_key;--    switch (event->type)-    {-        case YAML_ALIAS_EVENT:-            return yaml_emitter_emit_alias(emitter, event);--        case YAML_SCALAR_EVENT:-            return yaml_emitter_emit_scalar(emitter, event);--        case YAML_SEQUENCE_START_EVENT:-            return yaml_emitter_emit_sequence_start(emitter, event);--        case YAML_MAPPING_START_EVENT:-            return yaml_emitter_emit_mapping_start(emitter, event);--        default:-            return yaml_emitter_set_emitter_error(emitter,-                    "expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS");-    }--    return 0;-}--/*- * Expect ALIAS.- */--static int-yaml_emitter_emit_alias(yaml_emitter_t *emitter, SHIM(yaml_event_t *event))-{-    if (!yaml_emitter_process_anchor(emitter))-        return 0;-    emitter->state = POP(emitter, emitter->states);--    return 1;-}--/*- * Expect SCALAR.- */--static int-yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event)-{-    if (!yaml_emitter_select_scalar_style(emitter, event))-        return 0;-    if (!yaml_emitter_process_anchor(emitter))-        return 0;-    if (!yaml_emitter_process_tag(emitter))-        return 0;-    if (!yaml_emitter_increase_indent(emitter, 1, 0))-        return 0;-    if (!yaml_emitter_process_scalar(emitter))-        return 0;-    emitter->indent = POP(emitter, emitter->indents);-    emitter->state = POP(emitter, emitter->states);--    return 1;-}--/*- * Expect SEQUENCE-START.- */--static int-yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event)-{-    if (!yaml_emitter_process_anchor(emitter))-        return 0;-    if (!yaml_emitter_process_tag(emitter))-        return 0;--    if (emitter->flow_level || emitter->canonical-            || event->data.sequence_start.style == YAML_FLOW_SEQUENCE_STYLE-            || yaml_emitter_check_empty_sequence(emitter)) {-        emitter->state = YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE;-    }-    else {-        emitter->state = YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE;-    }--    return 1;-}--/*- * Expect MAPPING-START.- */--static int-yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event)-{-    if (!yaml_emitter_process_anchor(emitter))-        return 0;-    if (!yaml_emitter_process_tag(emitter))-        return 0;--    if (emitter->flow_level || emitter->canonical-            || event->data.mapping_start.style == YAML_FLOW_MAPPING_STYLE-            || yaml_emitter_check_empty_mapping(emitter)) {-        emitter->state = YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE;-    }-    else {-        emitter->state = YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE;-    }--    return 1;-}--/*- * Check if the document content is an empty scalar.- */--static int-yaml_emitter_check_empty_document(SHIM(yaml_emitter_t *emitter))-{-    return 0;-}--/*- * Check if the next events represent an empty sequence.- */--static int-yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter)-{-    if (emitter->events.tail - emitter->events.head < 2)-        return 0;--    return (emitter->events.head[0].type == YAML_SEQUENCE_START_EVENT-            && emitter->events.head[1].type == YAML_SEQUENCE_END_EVENT);-}--/*- * Check if the next events represent an empty mapping.- */--static int-yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter)-{-    if (emitter->events.tail - emitter->events.head < 2)-        return 0;--    return (emitter->events.head[0].type == YAML_MAPPING_START_EVENT-            && emitter->events.head[1].type == YAML_MAPPING_END_EVENT);-}--/*- * Check if the next node can be expressed as a simple key.- */--static int-yaml_emitter_check_simple_key(yaml_emitter_t *emitter)-{-    yaml_event_t *event = emitter->events.head;-    size_t length = 0;--    switch (event->type)-    {-        case YAML_ALIAS_EVENT:-            length += emitter->anchor_data.anchor_length;-            break;--        case YAML_SCALAR_EVENT:-            if (emitter->scalar_data.multiline)-                return 0;-            length += emitter->anchor_data.anchor_length-                + emitter->tag_data.handle_length-                + emitter->tag_data.suffix_length-                + emitter->scalar_data.length;-            break;--        case YAML_SEQUENCE_START_EVENT:-            if (!yaml_emitter_check_empty_sequence(emitter))-                return 0;-            length += emitter->anchor_data.anchor_length-                + emitter->tag_data.handle_length-                + emitter->tag_data.suffix_length;-            break;--        case YAML_MAPPING_START_EVENT:-            if (!yaml_emitter_check_empty_mapping(emitter))-                return 0;-            length += emitter->anchor_data.anchor_length-                + emitter->tag_data.handle_length-                + emitter->tag_data.suffix_length;-            break;--        default:-            return 0;-    }--    if (length > 128)-        return 0;--    return 1;-}--/*- * Determine an acceptable scalar style.- */--static int-yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event)-{-    yaml_scalar_style_t style = event->data.scalar.style;-    int no_tag = (!emitter->tag_data.handle && !emitter->tag_data.suffix);--    if (no_tag && !event->data.scalar.plain_implicit-            && !event->data.scalar.quoted_implicit) {-        return yaml_emitter_set_emitter_error(emitter,-                "neither tag nor implicit flags are specified");-    }--    if (style == YAML_ANY_SCALAR_STYLE)-        style = YAML_PLAIN_SCALAR_STYLE;--    if (emitter->canonical)-        style = YAML_DOUBLE_QUOTED_SCALAR_STYLE;--    if (emitter->simple_key_context && emitter->scalar_data.multiline)-        style = YAML_DOUBLE_QUOTED_SCALAR_STYLE;--    if (style == YAML_PLAIN_SCALAR_STYLE)-    {-        if ((emitter->flow_level && !emitter->scalar_data.flow_plain_allowed)-                || (!emitter->flow_level && !emitter->scalar_data.block_plain_allowed))-            style = YAML_SINGLE_QUOTED_SCALAR_STYLE;-        if (!emitter->scalar_data.length-                && (emitter->flow_level || emitter->simple_key_context))-            style = YAML_SINGLE_QUOTED_SCALAR_STYLE;-        if (no_tag && !event->data.scalar.plain_implicit)-            style = YAML_SINGLE_QUOTED_SCALAR_STYLE;-    }--    if (style == YAML_SINGLE_QUOTED_SCALAR_STYLE)-    {-        if (!emitter->scalar_data.single_quoted_allowed)-            style = YAML_DOUBLE_QUOTED_SCALAR_STYLE;-    }--    if (style == YAML_LITERAL_SCALAR_STYLE || style == YAML_FOLDED_SCALAR_STYLE)-    {-        if (!emitter->scalar_data.block_allowed-                || emitter->flow_level || emitter->simple_key_context)-            style = YAML_DOUBLE_QUOTED_SCALAR_STYLE;-    }--    if (no_tag && !event->data.scalar.quoted_implicit-            && style != YAML_PLAIN_SCALAR_STYLE)-    {-        emitter->tag_data.handle = (yaml_char_t *)"!";-        emitter->tag_data.handle_length = 1;-    }--    emitter->scalar_data.style = style;--    return 1;-}--/*- * Write an achor.- */--static int-yaml_emitter_process_anchor(yaml_emitter_t *emitter)-{-    if (!emitter->anchor_data.anchor)-        return 1;--    if (!yaml_emitter_write_indicator(emitter,-                (emitter->anchor_data.alias ? "*" : "&"), 1, 0, 0))-        return 0;--    return yaml_emitter_write_anchor(emitter,-            emitter->anchor_data.anchor, emitter->anchor_data.anchor_length);-}--/*- * Write a tag.- */--static int-yaml_emitter_process_tag(yaml_emitter_t *emitter)-{-    if (!emitter->tag_data.handle && !emitter->tag_data.suffix)-        return 1;--    if (emitter->tag_data.handle)-    {-        if (!yaml_emitter_write_tag_handle(emitter, emitter->tag_data.handle,-                    emitter->tag_data.handle_length))-            return 0;-        if (emitter->tag_data.suffix) {-            if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix,-                        emitter->tag_data.suffix_length, 0))-                return 0;-        }-    }-    else-    {-        if (!yaml_emitter_write_indicator(emitter, "!<", 1, 0, 0))-            return 0;-        if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix,-                    emitter->tag_data.suffix_length, 0))-            return 0;-        if (!yaml_emitter_write_indicator(emitter, ">", 0, 0, 0))-            return 0;-    }--    return 1;-}--/*- * Write a scalar.- */--static int-yaml_emitter_process_scalar(yaml_emitter_t *emitter)-{-    switch (emitter->scalar_data.style)-    {-        case YAML_PLAIN_SCALAR_STYLE:-            return yaml_emitter_write_plain_scalar(emitter,-                    emitter->scalar_data.value, emitter->scalar_data.length,-                    !emitter->simple_key_context);--        case YAML_SINGLE_QUOTED_SCALAR_STYLE:-            return yaml_emitter_write_single_quoted_scalar(emitter,-                    emitter->scalar_data.value, emitter->scalar_data.length,-                    !emitter->simple_key_context);--        case YAML_DOUBLE_QUOTED_SCALAR_STYLE:-            return yaml_emitter_write_double_quoted_scalar(emitter,-                    emitter->scalar_data.value, emitter->scalar_data.length,-                    !emitter->simple_key_context);--        case YAML_LITERAL_SCALAR_STYLE:-            return yaml_emitter_write_literal_scalar(emitter,-                    emitter->scalar_data.value, emitter->scalar_data.length);--        case YAML_FOLDED_SCALAR_STYLE:-            return yaml_emitter_write_folded_scalar(emitter,-                    emitter->scalar_data.value, emitter->scalar_data.length);--        default:-            assert(1);      /* Impossible. */-    }--    return 0;-}--/*- * Check if a %YAML directive is valid.- */--static int-yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter,-        yaml_version_directive_t version_directive)-{-    if (version_directive.major != 1 || version_directive.minor != 1) {-        return yaml_emitter_set_emitter_error(emitter,-                "incompatible %YAML directive");-    }--    return 1;-}--/*- * Check if a %TAG directive is valid.- */--static int-yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter,-        yaml_tag_directive_t tag_directive)-{-    yaml_string_t handle;-    yaml_string_t prefix;-    size_t handle_length;-    size_t prefix_length;--    handle_length = strlen((char *)tag_directive.handle);-    prefix_length = strlen((char *)tag_directive.prefix);-    STRING_ASSIGN(handle, tag_directive.handle, handle_length);-    STRING_ASSIGN(prefix, tag_directive.prefix, prefix_length);--    if (handle.start == handle.end) {-        return yaml_emitter_set_emitter_error(emitter,-                "tag handle must not be empty");-    }--    if (handle.start[0] != '!') {-        return yaml_emitter_set_emitter_error(emitter,-                "tag handle must start with '!'");-    }--    if (handle.end[-1] != '!') {-        return yaml_emitter_set_emitter_error(emitter,-                "tag handle must end with '!'");-    }--    handle.pointer ++;--    while (handle.pointer < handle.end-1) {-        if (!IS_ALPHA(handle)) {-            return yaml_emitter_set_emitter_error(emitter,-                    "tag handle must contain alphanumerical characters only");-        }-        MOVE(handle);-    }--    if (prefix.start == prefix.end) {-        return yaml_emitter_set_emitter_error(emitter,-                "tag prefix must not be empty");-    }--    return 1;-}--/*- * Check if an anchor is valid.- */--static int-yaml_emitter_analyze_anchor(yaml_emitter_t *emitter,-        yaml_char_t *anchor, int alias)-{-    size_t anchor_length;-    yaml_string_t string;--    anchor_length = strlen((char *)anchor);-    STRING_ASSIGN(string, anchor, anchor_length);--    if (string.start == string.end) {-        return yaml_emitter_set_emitter_error(emitter, alias ?-                "alias value must not be empty" :-                "anchor value must not be empty");-    }--    while (string.pointer != string.end) {-        if (!IS_ALPHA(string)) {-            return yaml_emitter_set_emitter_error(emitter, alias ?-                    "alias value must contain alphanumerical characters only" :-                    "anchor value must contain alphanumerical characters only");-        }-        MOVE(string);-    }--    emitter->anchor_data.anchor = string.start;-    emitter->anchor_data.anchor_length = string.end - string.start;-    emitter->anchor_data.alias = alias;--    return 1;-}--/*- * Check if a tag is valid.- */--static int-yaml_emitter_analyze_tag(yaml_emitter_t *emitter,-        yaml_char_t *tag)-{-    size_t tag_length;-    yaml_string_t string;-    yaml_tag_directive_t *tag_directive;--    tag_length = strlen((char *)tag);-    STRING_ASSIGN(string, tag, tag_length);--    if (string.start == string.end) {-        return yaml_emitter_set_emitter_error(emitter,-                "tag value must not be empty");-    }--    for (tag_directive = emitter->tag_directives.start;-            tag_directive != emitter->tag_directives.top; tag_directive ++) {-        size_t prefix_length = strlen((char *)tag_directive->prefix);-        if (prefix_length < (size_t)(string.end - string.start)-                && strncmp((char *)tag_directive->prefix, (char *)string.start,-                    prefix_length) == 0)-        {-            emitter->tag_data.handle = tag_directive->handle;-            emitter->tag_data.handle_length =-                strlen((char *)tag_directive->handle);-            emitter->tag_data.suffix = string.start + prefix_length;-            emitter->tag_data.suffix_length =-                (string.end - string.start) - prefix_length;-            return 1;-        }-    }--    emitter->tag_data.suffix = string.start;-    emitter->tag_data.suffix_length = string.end - string.start;--    return 1;-}--/*- * Check if a scalar is valid.- */--static int-yaml_emitter_analyze_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length)-{-    yaml_string_t string;--    int block_indicators = 0;-    int flow_indicators = 0;-    int line_breaks = 0;-    int special_characters = 0;--    int leading_space = 0;-    int leading_break = 0;-    int trailing_space = 0;-    int trailing_break = 0;-    int break_space = 0;-    int space_break = 0;--    int preceded_by_whitespace = 0;-    int followed_by_whitespace = 0;-    int previous_space = 0;-    int previous_break = 0;--    STRING_ASSIGN(string, value, length);--    emitter->scalar_data.value = value;-    emitter->scalar_data.length = length;--    if (string.start == string.end)-    {-        emitter->scalar_data.multiline = 0;-        emitter->scalar_data.flow_plain_allowed = 0;-        emitter->scalar_data.block_plain_allowed = 1;-        emitter->scalar_data.single_quoted_allowed = 1;-        emitter->scalar_data.block_allowed = 0;--        return 1;-    }--    if ((CHECK_AT(string, '-', 0)-                && CHECK_AT(string, '-', 1)-                && CHECK_AT(string, '-', 2))-            || (CHECK_AT(string, '.', 0)-                && CHECK_AT(string, '.', 1)-                && CHECK_AT(string, '.', 2))) {-        block_indicators = 1;-        flow_indicators = 1;-    }--    preceded_by_whitespace = 1;-    followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string));--    while (string.pointer != string.end)-    {-        if (string.start == string.pointer)-        {-            if (CHECK(string, '#') || CHECK(string, ',')-                    || CHECK(string, '[') || CHECK(string, ']')-                    || CHECK(string, '{') || CHECK(string, '}')-                    || CHECK(string, '&') || CHECK(string, '*')-                    || CHECK(string, '!') || CHECK(string, '|')-                    || CHECK(string, '>') || CHECK(string, '\'')-                    || CHECK(string, '"') || CHECK(string, '%')-                    || CHECK(string, '@') || CHECK(string, '`')) {-                flow_indicators = 1;-                block_indicators = 1;-            }--            if (CHECK(string, '?') || CHECK(string, ':')) {-                flow_indicators = 1;-                if (followed_by_whitespace) {-                    block_indicators = 1;-                }-            }--            if (CHECK(string, '-') && followed_by_whitespace) {-                flow_indicators = 1;-                block_indicators = 1;-            }-        }-        else-        {-            if (CHECK(string, ',') || CHECK(string, '?')-                    || CHECK(string, '[') || CHECK(string, ']')-                    || CHECK(string, '{') || CHECK(string, '}')) {-                flow_indicators = 1;-            }--            if (CHECK(string, ':')) {-                flow_indicators = 1;-                if (followed_by_whitespace) {-                    block_indicators = 1;-                }-            }--            if (CHECK(string, '#') && preceded_by_whitespace) {-                flow_indicators = 1;-                block_indicators = 1;-            }-        }--        if (!IS_PRINTABLE(string)-                || (!IS_ASCII(string) && !emitter->unicode)) {-            special_characters = 1;-        }--        if (IS_BREAK(string)) {-            line_breaks = 1;-        }--        if (IS_SPACE(string))-        {-            if (string.start == string.pointer) {-                leading_space = 1;-            }-            if (string.pointer+WIDTH(string) == string.end) {-                trailing_space = 1;-            }-            if (previous_break) {-                break_space = 1;-            }-            previous_space = 1;-            previous_break = 0;-        }-        else if (IS_BREAK(string))-        {-            if (string.start == string.pointer) {-                leading_break = 1;-            }-            if (string.pointer+WIDTH(string) == string.end) {-                trailing_break = 1;-            }-            if (previous_space) {-                space_break = 1;-            }-            previous_space = 0;-            previous_break = 1;-        }-        else-        {-            previous_space = 0;-            previous_break = 0;-        }--        preceded_by_whitespace = IS_BLANKZ(string);-        MOVE(string);-        if (string.pointer != string.end) {-            followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string));-        }-    }--    emitter->scalar_data.multiline = line_breaks;--    emitter->scalar_data.flow_plain_allowed = 1;-    emitter->scalar_data.block_plain_allowed = 1;-    emitter->scalar_data.single_quoted_allowed = 1;-    emitter->scalar_data.block_allowed = 1;--    if (leading_space || leading_break || trailing_space || trailing_break) {-        emitter->scalar_data.flow_plain_allowed = 0;-        emitter->scalar_data.block_plain_allowed = 0;-    }--    if (trailing_space) {-        emitter->scalar_data.block_allowed = 0;-    }--    if (break_space) {-        emitter->scalar_data.flow_plain_allowed = 0;-        emitter->scalar_data.block_plain_allowed = 0;-        emitter->scalar_data.single_quoted_allowed = 0;-    }--    if (space_break || special_characters) {-        emitter->scalar_data.flow_plain_allowed = 0;-        emitter->scalar_data.block_plain_allowed = 0;-        emitter->scalar_data.single_quoted_allowed = 0;-        emitter->scalar_data.block_allowed = 0;-    }--    if (line_breaks) {-        emitter->scalar_data.flow_plain_allowed = 0;-        emitter->scalar_data.block_plain_allowed = 0;-    }--    if (flow_indicators) {-        emitter->scalar_data.flow_plain_allowed = 0;-    }--    if (block_indicators) {-        emitter->scalar_data.block_plain_allowed = 0;-    }--    return 1;-}--/*- * Check if the event data is valid.- */--static int-yaml_emitter_analyze_event(yaml_emitter_t *emitter,-        yaml_event_t *event)-{-    emitter->anchor_data.anchor = NULL;-    emitter->anchor_data.anchor_length = 0;-    emitter->tag_data.handle = NULL;-    emitter->tag_data.handle_length = 0;-    emitter->tag_data.suffix = NULL;-    emitter->tag_data.suffix_length = 0;-    emitter->scalar_data.value = NULL;-    emitter->scalar_data.length = 0;--    switch (event->type)-    {-        case YAML_ALIAS_EVENT:-            if (!yaml_emitter_analyze_anchor(emitter,-                        event->data.alias.anchor, 1))-                return 0;-            return 1;--        case YAML_SCALAR_EVENT:-            if (event->data.scalar.anchor) {-                if (!yaml_emitter_analyze_anchor(emitter,-                            event->data.scalar.anchor, 0))-                    return 0;-            }-            if (event->data.scalar.tag && (emitter->canonical ||-                        (!event->data.scalar.plain_implicit-                         && !event->data.scalar.quoted_implicit))) {-                if (!yaml_emitter_analyze_tag(emitter, event->data.scalar.tag))-                    return 0;-            }-            if (!yaml_emitter_analyze_scalar(emitter,-                        event->data.scalar.value, event->data.scalar.length))-                return 0;-            return 1;--        case YAML_SEQUENCE_START_EVENT:-            if (event->data.sequence_start.anchor) {-                if (!yaml_emitter_analyze_anchor(emitter,-                            event->data.sequence_start.anchor, 0))-                    return 0;-            }-            if (event->data.sequence_start.tag && (emitter->canonical ||-                        !event->data.sequence_start.implicit)) {-                if (!yaml_emitter_analyze_tag(emitter,-                            event->data.sequence_start.tag))-                    return 0;-            }-            return 1;--        case YAML_MAPPING_START_EVENT:-            if (event->data.mapping_start.anchor) {-                if (!yaml_emitter_analyze_anchor(emitter,-                            event->data.mapping_start.anchor, 0))-                    return 0;-            }-            if (event->data.mapping_start.tag && (emitter->canonical ||-                        !event->data.mapping_start.implicit)) {-                if (!yaml_emitter_analyze_tag(emitter,-                            event->data.mapping_start.tag))-                    return 0;-            }-            return 1;--        default:-            return 1;-    }-}--/*- * Write the BOM character.- */--static int-yaml_emitter_write_bom(yaml_emitter_t *emitter)-{-    if (!FLUSH(emitter)) return 0;--    *(emitter->buffer.pointer++) = (yaml_char_t) '\xEF';-    *(emitter->buffer.pointer++) = (yaml_char_t) '\xBB';-    *(emitter->buffer.pointer++) = (yaml_char_t) '\xBF';--    return 1;-}--static int-yaml_emitter_write_indent(yaml_emitter_t *emitter)-{-    int indent = (emitter->indent >= 0) ? emitter->indent : 0;--    if (!emitter->indention || emitter->column > indent-            || (emitter->column == indent && !emitter->whitespace)) {-        if (!PUT_BREAK(emitter)) return 0;-    }--    while (emitter->column < indent) {-        if (!PUT(emitter, ' ')) return 0;-    }--    emitter->whitespace = 1;-    emitter->indention = 1;--    return 1;-}--static int-yaml_emitter_write_indicator(yaml_emitter_t *emitter,-        char *indicator, int need_whitespace,-        int is_whitespace, int is_indention)-{-    size_t indicator_length;-    yaml_string_t string;--    indicator_length = strlen(indicator);-    STRING_ASSIGN(string, (yaml_char_t *)indicator, indicator_length);--    if (need_whitespace && !emitter->whitespace) {-        if (!PUT(emitter, ' ')) return 0;-    }--    while (string.pointer != string.end) {-        if (!WRITE(emitter, string)) return 0;-    }--    emitter->whitespace = is_whitespace;-    emitter->indention = (emitter->indention && is_indention);-    emitter->open_ended = 0;--    return 1;-}--static int-yaml_emitter_write_anchor(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length)-{-    yaml_string_t string;-    STRING_ASSIGN(string, value, length);--    while (string.pointer != string.end) {-        if (!WRITE(emitter, string)) return 0;-    }--    emitter->whitespace = 0;-    emitter->indention = 0;--    return 1;-}--static int-yaml_emitter_write_tag_handle(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length)-{-    yaml_string_t string;-    STRING_ASSIGN(string, value, length);--    if (!emitter->whitespace) {-        if (!PUT(emitter, ' ')) return 0;-    }--    while (string.pointer != string.end) {-        if (!WRITE(emitter, string)) return 0;-    }--    emitter->whitespace = 0;-    emitter->indention = 0;--    return 1;-}--static int-yaml_emitter_write_tag_content(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length,-        int need_whitespace)-{-    yaml_string_t string;-    STRING_ASSIGN(string, value, length);--    if (need_whitespace && !emitter->whitespace) {-        if (!PUT(emitter, ' ')) return 0;-    }--    while (string.pointer != string.end) {-        if (IS_ALPHA(string)-                || CHECK(string, ';') || CHECK(string, '/')-                || CHECK(string, '?') || CHECK(string, ':')-                || CHECK(string, '@') || CHECK(string, '&')-                || CHECK(string, '=') || CHECK(string, '+')-                || CHECK(string, '$') || CHECK(string, ',')-                || CHECK(string, '_') || CHECK(string, '.')-                || CHECK(string, '~') || CHECK(string, '*')-                || CHECK(string, '\'') || CHECK(string, '(')-                || CHECK(string, ')') || CHECK(string, '[')-                || CHECK(string, ']')) {-            if (!WRITE(emitter, string)) return 0;-        }-        else {-            int width = WIDTH(string);-            unsigned int value;-            while (width --) {-                value = *(string.pointer++);-                if (!PUT(emitter, '%')) return 0;-                if (!PUT(emitter, (value >> 4)-                            + ((value >> 4) < 10 ? '0' : 'A' - 10)))-                    return 0;-                if (!PUT(emitter, (value & 0x0F)-                            + ((value & 0x0F) < 10 ? '0' : 'A' - 10)))-                    return 0;-            }-        }-    }--    emitter->whitespace = 0;-    emitter->indention = 0;--    return 1;-}--static int-yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length, int allow_breaks)-{-    yaml_string_t string;-    int spaces = 0;-    int breaks = 0;--    STRING_ASSIGN(string, value, length);--    if (!emitter->whitespace) {-        if (!PUT(emitter, ' ')) return 0;-    }--    while (string.pointer != string.end)-    {-        if (IS_SPACE(string))-        {-            if (allow_breaks && !spaces-                    && emitter->column > emitter->best_width-                    && !IS_SPACE_AT(string, 1)) {-                if (!yaml_emitter_write_indent(emitter)) return 0;-                MOVE(string);-            }-            else {-                if (!WRITE(emitter, string)) return 0;-            }-            spaces = 1;-        }-        else if (IS_BREAK(string))-        {-            if (!breaks && CHECK(string, '\n')) {-                if (!PUT_BREAK(emitter)) return 0;-            }-            if (!WRITE_BREAK(emitter, string)) return 0;-            emitter->indention = 1;-            breaks = 1;-        }-        else-        {-            if (breaks) {-                if (!yaml_emitter_write_indent(emitter)) return 0;-            }-            if (!WRITE(emitter, string)) return 0;-            emitter->indention = 0;-            spaces = 0;-            breaks = 0;-        }-    }--    emitter->whitespace = 0;-    emitter->indention = 0;--    return 1;-}--static int-yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length, int allow_breaks)-{-    yaml_string_t string;-    int spaces = 0;-    int breaks = 0;--    STRING_ASSIGN(string, value, length);--    if (!yaml_emitter_write_indicator(emitter, "'", 1, 0, 0))-        return 0;--    while (string.pointer != string.end)-    {-        if (IS_SPACE(string))-        {-            if (allow_breaks && !spaces-                    && emitter->column > emitter->best_width-                    && string.pointer != string.start-                    && string.pointer != string.end - 1-                    && !IS_SPACE_AT(string, 1)) {-                if (!yaml_emitter_write_indent(emitter)) return 0;-                MOVE(string);-            }-            else {-                if (!WRITE(emitter, string)) return 0;-            }-            spaces = 1;-        }-        else if (IS_BREAK(string))-        {-            if (!breaks && CHECK(string, '\n')) {-                if (!PUT_BREAK(emitter)) return 0;-            }-            if (!WRITE_BREAK(emitter, string)) return 0;-            emitter->indention = 1;-            breaks = 1;-        }-        else-        {-            if (breaks) {-                if (!yaml_emitter_write_indent(emitter)) return 0;-            }-            if (CHECK(string, '\'')) {-                if (!PUT(emitter, '\'')) return 0;-            }-            if (!WRITE(emitter, string)) return 0;-            emitter->indention = 0;-            spaces = 0;-            breaks = 0;-        }-    }--    if (!yaml_emitter_write_indicator(emitter, "'", 0, 0, 0))-        return 0;--    emitter->whitespace = 0;-    emitter->indention = 0;--    return 1;-}--static int-yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length, int allow_breaks)-{-    yaml_string_t string;-    int spaces = 0;--    STRING_ASSIGN(string, value, length);--    if (!yaml_emitter_write_indicator(emitter, "\"", 1, 0, 0))-        return 0;--    while (string.pointer != string.end)-    {-        if (!IS_PRINTABLE(string) || (!emitter->unicode && !IS_ASCII(string))-                || IS_BOM(string) || IS_BREAK(string)-                || CHECK(string, '"') || CHECK(string, '\\'))-        {-            unsigned char octet;-            unsigned int width;-            unsigned int value;-            int k;--            octet = string.pointer[0];-            width = (octet & 0x80) == 0x00 ? 1 :-                    (octet & 0xE0) == 0xC0 ? 2 :-                    (octet & 0xF0) == 0xE0 ? 3 :-                    (octet & 0xF8) == 0xF0 ? 4 : 0;-            value = (octet & 0x80) == 0x00 ? octet & 0x7F :-                    (octet & 0xE0) == 0xC0 ? octet & 0x1F :-                    (octet & 0xF0) == 0xE0 ? octet & 0x0F :-                    (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;-            for (k = 1; k < (int)width; k ++) {-                octet = string.pointer[k];-                value = (value << 6) + (octet & 0x3F);-            }-            string.pointer += width;--            if (!PUT(emitter, '\\')) return 0;--            switch (value)-            {-                case 0x00:-                    if (!PUT(emitter, '0')) return 0;-                    break;--                case 0x07:-                    if (!PUT(emitter, 'a')) return 0;-                    break;--                case 0x08:-                    if (!PUT(emitter, 'b')) return 0;-                    break;--                case 0x09:-                    if (!PUT(emitter, 't')) return 0;-                    break;--                case 0x0A:-                    if (!PUT(emitter, 'n')) return 0;-                    break;--                case 0x0B:-                    if (!PUT(emitter, 'v')) return 0;-                    break;--                case 0x0C:-                    if (!PUT(emitter, 'f')) return 0;-                    break;--                case 0x0D:-                    if (!PUT(emitter, 'r')) return 0;-                    break;--                case 0x1B:-                    if (!PUT(emitter, 'e')) return 0;-                    break;--                case 0x22:-                    if (!PUT(emitter, '\"')) return 0;-                    break;--                case 0x5C:-                    if (!PUT(emitter, '\\')) return 0;-                    break;--                case 0x85:-                    if (!PUT(emitter, 'N')) return 0;-                    break;--                case 0xA0:-                    if (!PUT(emitter, '_')) return 0;-                    break;--                case 0x2028:-                    if (!PUT(emitter, 'L')) return 0;-                    break;--                case 0x2029:-                    if (!PUT(emitter, 'P')) return 0;-                    break;--                default:-                    if (value <= 0xFF) {-                        if (!PUT(emitter, 'x')) return 0;-                        width = 2;-                    }-                    else if (value <= 0xFFFF) {-                        if (!PUT(emitter, 'u')) return 0;-                        width = 4;-                    }-                    else {-                        if (!PUT(emitter, 'U')) return 0;-                        width = 8;-                    }-                    for (k = (width-1)*4; k >= 0; k -= 4) {-                        int digit = (value >> k) & 0x0F;-                        if (!PUT(emitter, digit + (digit < 10 ? '0' : 'A'-10)))-                            return 0;-                    }-            }-            spaces = 0;-        }-        else if (IS_SPACE(string))-        {-            if (allow_breaks && !spaces-                    && emitter->column > emitter->best_width-                    && string.pointer != string.start-                    && string.pointer != string.end - 1) {-                if (!yaml_emitter_write_indent(emitter)) return 0;-                if (IS_SPACE_AT(string, 1)) {-                    if (!PUT(emitter, '\\')) return 0;-                }-                MOVE(string);-            }-            else {-                if (!WRITE(emitter, string)) return 0;-            }-            spaces = 1;-        }-        else-        {-            if (!WRITE(emitter, string)) return 0;-            spaces = 0;-        }-    }--    if (!yaml_emitter_write_indicator(emitter, "\"", 0, 0, 0))-        return 0;--    emitter->whitespace = 0;-    emitter->indention = 0;--    return 1;-}--static int-yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter,-        yaml_string_t string)-{-    char indent_hint[2];-    char *chomp_hint = NULL;--    if (IS_SPACE(string) || IS_BREAK(string))-    {-        indent_hint[0] = '0' + (char)emitter->best_indent;-        indent_hint[1] = '\0';-        if (!yaml_emitter_write_indicator(emitter, indent_hint, 0, 0, 0))-            return 0;-    }--    emitter->open_ended = 0;--    string.pointer = string.end;-    if (string.start == string.pointer)-    {-        chomp_hint = "-";-    }-    else-    {-        do {-            string.pointer --;-        } while ((*string.pointer & 0xC0) == 0x80);-        if (!IS_BREAK(string))-        {-            chomp_hint = "-";-        }-        else if (string.start == string.pointer)-        {-            chomp_hint = "+";-            emitter->open_ended = 1;-        }-        else-        {-            do {-                string.pointer --;-            } while ((*string.pointer & 0xC0) == 0x80);-            if (IS_BREAK(string))-            {-                chomp_hint = "+";-                emitter->open_ended = 1;-            }-        }-    }--    if (chomp_hint)-    {-        if (!yaml_emitter_write_indicator(emitter, chomp_hint, 0, 0, 0))-            return 0;-    }--    return 1;-}--static int-yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length)-{-    yaml_string_t string;-    int breaks = 1;--    STRING_ASSIGN(string, value, length);--    if (!yaml_emitter_write_indicator(emitter, "|", 1, 0, 0))-        return 0;-    if (!yaml_emitter_write_block_scalar_hints(emitter, string))-        return 0;-    if (!PUT_BREAK(emitter)) return 0;-    emitter->indention = 1;-    emitter->whitespace = 1;--    while (string.pointer != string.end)-    {-        if (IS_BREAK(string))-        {-            if (!WRITE_BREAK(emitter, string)) return 0;-            emitter->indention = 1;-            breaks = 1;-        }-        else-        {-            if (breaks) {-                if (!yaml_emitter_write_indent(emitter)) return 0;-            }-            if (!WRITE(emitter, string)) return 0;-            emitter->indention = 0;-            breaks = 0;-        }-    }--    return 1;-}--static int-yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter,-        yaml_char_t *value, size_t length)-{-    yaml_string_t string;-    int breaks = 1;-    int leading_spaces = 1;--    STRING_ASSIGN(string, value, length);--    if (!yaml_emitter_write_indicator(emitter, ">", 1, 0, 0))-        return 0;-    if (!yaml_emitter_write_block_scalar_hints(emitter, string))-        return 0;-    if (!PUT_BREAK(emitter)) return 0;-    emitter->indention = 1;-    emitter->whitespace = 1;--    while (string.pointer != string.end)-    {-        if (IS_BREAK(string))-        {-            if (!breaks && !leading_spaces && CHECK(string, '\n')) {-                int k = 0;-                while (IS_BREAK_AT(string, k)) {-                    k += WIDTH_AT(string, k);-                }-                if (!IS_BLANKZ_AT(string, k)) {-                    if (!PUT_BREAK(emitter)) return 0;-                }-            }-            if (!WRITE_BREAK(emitter, string)) return 0;-            emitter->indention = 1;-            breaks = 1;-        }-        else-        {-            if (breaks) {-                if (!yaml_emitter_write_indent(emitter)) return 0;-                leading_spaces = IS_BLANK(string);-            }-            if (!breaks && IS_SPACE(string) && !IS_SPACE_AT(string, 1)-                    && emitter->column > emitter->best_width) {-                if (!yaml_emitter_write_indent(emitter)) return 0;-                MOVE(string);-            }-            else {-                if (!WRITE(emitter, string)) return 0;-            }-            emitter->indention = 0;-            breaks = 0;-        }-    }--    return 1;-}
− libyaml/loader.c 
@@ -1,444 +0,0 @@--#include "yaml_private.h"--/*- * API functions.- */--YAML_DECLARE(int)-yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document);--/*- * Error handling.- */--static int-yaml_parser_set_composer_error(yaml_parser_t *parser,-        const char *problem, yaml_mark_t problem_mark);--static int-yaml_parser_set_composer_error_context(yaml_parser_t *parser,-        const char *context, yaml_mark_t context_mark,-        const char *problem, yaml_mark_t problem_mark);---/*- * Alias handling.- */--static int-yaml_parser_register_anchor(yaml_parser_t *parser,-        int index, yaml_char_t *anchor);--/*- * Clean up functions.- */--static void-yaml_parser_delete_aliases(yaml_parser_t *parser);--/*- * Composer functions.- */--static int-yaml_parser_load_document(yaml_parser_t *parser, yaml_event_t *first_event);--static int-yaml_parser_load_node(yaml_parser_t *parser, yaml_event_t *first_event);--static int-yaml_parser_load_alias(yaml_parser_t *parser, yaml_event_t *first_event);--static int-yaml_parser_load_scalar(yaml_parser_t *parser, yaml_event_t *first_event);--static int-yaml_parser_load_sequence(yaml_parser_t *parser, yaml_event_t *first_event);--static int-yaml_parser_load_mapping(yaml_parser_t *parser, yaml_event_t *first_event);--/*- * Load the next document of the stream.- */--YAML_DECLARE(int)-yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document)-{-    yaml_event_t event;--    assert(parser);     /* Non-NULL parser object is expected. */-    assert(document);   /* Non-NULL document object is expected. */--    memset(document, 0, sizeof(yaml_document_t));-    if (!STACK_INIT(parser, document->nodes, yaml_node_t*))-        goto error;--    if (!parser->stream_start_produced) {-        if (!yaml_parser_parse(parser, &event)) goto error;-        assert(event.type == YAML_STREAM_START_EVENT);-                        /* STREAM-START is expected. */-    }--    if (parser->stream_end_produced) {-        return 1;-    }--    if (!yaml_parser_parse(parser, &event)) goto error;-    if (event.type == YAML_STREAM_END_EVENT) {-        return 1;-    }--    if (!STACK_INIT(parser, parser->aliases, yaml_alias_data_t*))-        goto error;--    parser->document = document;--    if (!yaml_parser_load_document(parser, &event)) goto error;--    yaml_parser_delete_aliases(parser);-    parser->document = NULL;--    return 1;--error:--    yaml_parser_delete_aliases(parser);-    yaml_document_delete(document);-    parser->document = NULL;--    return 0;-}--/*- * Set composer error.- */--static int-yaml_parser_set_composer_error(yaml_parser_t *parser,-        const char *problem, yaml_mark_t problem_mark)-{-    parser->error = YAML_COMPOSER_ERROR;-    parser->problem = problem;-    parser->problem_mark = problem_mark;--    return 0;-}--/*- * Set composer error with context.- */--static int-yaml_parser_set_composer_error_context(yaml_parser_t *parser,-        const char *context, yaml_mark_t context_mark,-        const char *problem, yaml_mark_t problem_mark)-{-    parser->error = YAML_COMPOSER_ERROR;-    parser->context = context;-    parser->context_mark = context_mark;-    parser->problem = problem;-    parser->problem_mark = problem_mark;--    return 0;-}--/*- * Delete the stack of aliases.- */--static void-yaml_parser_delete_aliases(yaml_parser_t *parser)-{-    while (!STACK_EMPTY(parser, parser->aliases)) {-        yaml_free(POP(parser, parser->aliases).anchor);-    }-    STACK_DEL(parser, parser->aliases);-}--/*- * Compose a document object.- */--static int-yaml_parser_load_document(yaml_parser_t *parser, yaml_event_t *first_event)-{-    yaml_event_t event;--    assert(first_event->type == YAML_DOCUMENT_START_EVENT);-                        /* DOCUMENT-START is expected. */--    parser->document->version_directive-        = first_event->data.document_start.version_directive;-    parser->document->tag_directives.start-        = first_event->data.document_start.tag_directives.start;-    parser->document->tag_directives.end-        = first_event->data.document_start.tag_directives.end;-    parser->document->start_implicit-        = first_event->data.document_start.implicit;-    parser->document->start_mark = first_event->start_mark;--    if (!yaml_parser_parse(parser, &event)) return 0;--    if (!yaml_parser_load_node(parser, &event)) return 0;--    if (!yaml_parser_parse(parser, &event)) return 0;-    assert(event.type == YAML_DOCUMENT_END_EVENT);-                        /* DOCUMENT-END is expected. */--    parser->document->end_implicit = event.data.document_end.implicit;-    parser->document->end_mark = event.end_mark;--    return 1;-}--/*- * Compose a node.- */--static int-yaml_parser_load_node(yaml_parser_t *parser, yaml_event_t *first_event)-{-    switch (first_event->type) {-        case YAML_ALIAS_EVENT:-            return yaml_parser_load_alias(parser, first_event);-        case YAML_SCALAR_EVENT:-            return yaml_parser_load_scalar(parser, first_event);-        case YAML_SEQUENCE_START_EVENT:-            return yaml_parser_load_sequence(parser, first_event);-        case YAML_MAPPING_START_EVENT:-            return yaml_parser_load_mapping(parser, first_event);-        default:-            assert(0);  /* Could not happen. */-            return 0;-    }--    return 0;-}--/*- * Add an anchor.- */--static int-yaml_parser_register_anchor(yaml_parser_t *parser,-        int index, yaml_char_t *anchor)-{-    yaml_alias_data_t data;-    yaml_alias_data_t *alias_data;--    if (!anchor) return 1;--    data.anchor = anchor;-    data.index = index;-    data.mark = parser->document->nodes.start[index-1].start_mark;--    for (alias_data = parser->aliases.start;-            alias_data != parser->aliases.top; alias_data ++) {-        if (strcmp((char *)alias_data->anchor, (char *)anchor) == 0) {-            yaml_free(anchor);-            return yaml_parser_set_composer_error_context(parser,-                    "found duplicate anchor; first occurrence",-                    alias_data->mark, "second occurrence", data.mark);-        }-    }--    if (!PUSH(parser, parser->aliases, data)) {-        yaml_free(anchor);-        return 0;-    }--    return 1;-}--/*- * Compose a node corresponding to an alias.- */--static int-yaml_parser_load_alias(yaml_parser_t *parser, yaml_event_t *first_event)-{-    yaml_char_t *anchor = first_event->data.alias.anchor;-    yaml_alias_data_t *alias_data;--    for (alias_data = parser->aliases.start;-            alias_data != parser->aliases.top; alias_data ++) {-        if (strcmp((char *)alias_data->anchor, (char *)anchor) == 0) {-            yaml_free(anchor);-            return alias_data->index;-        }-    }--    yaml_free(anchor);-    return yaml_parser_set_composer_error(parser, "found undefined alias",-            first_event->start_mark);-}--/*- * Compose a scalar node.- */--static int-yaml_parser_load_scalar(yaml_parser_t *parser, yaml_event_t *first_event)-{-    yaml_node_t node;-    int index;-    yaml_char_t *tag = first_event->data.scalar.tag;--    if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error;--    if (!tag || strcmp((char *)tag, "!") == 0) {-        yaml_free(tag);-        tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_SCALAR_TAG);-        if (!tag) goto error;-    }--    SCALAR_NODE_INIT(node, tag, first_event->data.scalar.value,-            first_event->data.scalar.length, first_event->data.scalar.style,-            first_event->start_mark, first_event->end_mark);--    if (!PUSH(parser, parser->document->nodes, node)) goto error;--    index = parser->document->nodes.top - parser->document->nodes.start;--    if (!yaml_parser_register_anchor(parser, index,-                first_event->data.scalar.anchor)) return 0;--    return index;--error:-    yaml_free(tag);-    yaml_free(first_event->data.scalar.anchor);-    yaml_free(first_event->data.scalar.value);-    return 0;-}--/*- * Compose a sequence node.- */--static int-yaml_parser_load_sequence(yaml_parser_t *parser, yaml_event_t *first_event)-{-    yaml_event_t event;-    yaml_node_t node;-    struct {-        yaml_node_item_t *start;-        yaml_node_item_t *end;-        yaml_node_item_t *top;-    } items = { NULL, NULL, NULL };-    int index, item_index;-    yaml_char_t *tag = first_event->data.sequence_start.tag;--    if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error;--    if (!tag || strcmp((char *)tag, "!") == 0) {-        yaml_free(tag);-        tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG);-        if (!tag) goto error;-    }--    if (!STACK_INIT(parser, items, yaml_node_item_t*)) goto error;--    SEQUENCE_NODE_INIT(node, tag, items.start, items.end,-            first_event->data.sequence_start.style,-            first_event->start_mark, first_event->end_mark);--    if (!PUSH(parser, parser->document->nodes, node)) goto error;--    index = parser->document->nodes.top - parser->document->nodes.start;--    if (!yaml_parser_register_anchor(parser, index,-                first_event->data.sequence_start.anchor)) return 0;--    if (!yaml_parser_parse(parser, &event)) return 0;--    while (event.type != YAML_SEQUENCE_END_EVENT) {-        if (!STACK_LIMIT(parser,-                    parser->document->nodes.start[index-1].data.sequence.items,-                    INT_MAX-1)) return 0;-        item_index = yaml_parser_load_node(parser, &event);-        if (!item_index) return 0;-        if (!PUSH(parser,-                    parser->document->nodes.start[index-1].data.sequence.items,-                    item_index)) return 0;-        if (!yaml_parser_parse(parser, &event)) return 0;-    }--    parser->document->nodes.start[index-1].end_mark = event.end_mark;--    return index;--error:-    yaml_free(tag);-    yaml_free(first_event->data.sequence_start.anchor);-    return 0;-}--/*- * Compose a mapping node.- */--static int-yaml_parser_load_mapping(yaml_parser_t *parser, yaml_event_t *first_event)-{-    yaml_event_t event;-    yaml_node_t node;-    struct {-        yaml_node_pair_t *start;-        yaml_node_pair_t *end;-        yaml_node_pair_t *top;-    } pairs = { NULL, NULL, NULL };-    int index;-    yaml_node_pair_t pair;-    yaml_char_t *tag = first_event->data.mapping_start.tag;--    if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error;--    if (!tag || strcmp((char *)tag, "!") == 0) {-        yaml_free(tag);-        tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_MAPPING_TAG);-        if (!tag) goto error;-    }--    if (!STACK_INIT(parser, pairs, yaml_node_pair_t*)) goto error;--    MAPPING_NODE_INIT(node, tag, pairs.start, pairs.end,-            first_event->data.mapping_start.style,-            first_event->start_mark, first_event->end_mark);--    if (!PUSH(parser, parser->document->nodes, node)) goto error;--    index = parser->document->nodes.top - parser->document->nodes.start;--    if (!yaml_parser_register_anchor(parser, index,-                first_event->data.mapping_start.anchor)) return 0;--    if (!yaml_parser_parse(parser, &event)) return 0;--    while (event.type != YAML_MAPPING_END_EVENT) {-        if (!STACK_LIMIT(parser,-                    parser->document->nodes.start[index-1].data.mapping.pairs,-                    INT_MAX-1)) return 0;-        pair.key = yaml_parser_load_node(parser, &event);-        if (!pair.key) return 0;-        if (!yaml_parser_parse(parser, &event)) return 0;-        pair.value = yaml_parser_load_node(parser, &event);-        if (!pair.value) return 0;-        if (!PUSH(parser,-                    parser->document->nodes.start[index-1].data.mapping.pairs,-                    pair)) return 0;-        if (!yaml_parser_parse(parser, &event)) return 0;-    }--    parser->document->nodes.start[index-1].end_mark = event.end_mark;--    return index;--error:-    yaml_free(tag);-    yaml_free(first_event->data.mapping_start.anchor);-    return 0;-}-
− libyaml/parser.c 
@@ -1,1370 +0,0 @@--/*- * The parser implements the following grammar:- *- * stream               ::= STREAM-START implicit_document? explicit_document* STREAM-END- * implicit_document    ::= block_node DOCUMENT-END*- * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*- * block_node_or_indentless_sequence    ::=- *                          ALIAS- *                          | properties (block_content | indentless_block_sequence)?- *                          | block_content- *                          | indentless_block_sequence- * block_node           ::= ALIAS- *                          | properties block_content?- *                          | block_content- * flow_node            ::= ALIAS- *                          | properties flow_content?- *                          | flow_content- * properties           ::= TAG ANCHOR? | ANCHOR TAG?- * block_content        ::= block_collection | flow_collection | SCALAR- * flow_content         ::= flow_collection | SCALAR- * block_collection     ::= block_sequence | block_mapping- * flow_collection      ::= flow_sequence | flow_mapping- * block_sequence       ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END- * indentless_sequence  ::= (BLOCK-ENTRY block_node?)+- * block_mapping        ::= BLOCK-MAPPING_START- *                          ((KEY block_node_or_indentless_sequence?)?- *                          (VALUE block_node_or_indentless_sequence?)?)*- *                          BLOCK-END- * flow_sequence        ::= FLOW-SEQUENCE-START- *                          (flow_sequence_entry FLOW-ENTRY)*- *                          flow_sequence_entry?- *                          FLOW-SEQUENCE-END- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?- * flow_mapping         ::= FLOW-MAPPING-START- *                          (flow_mapping_entry FLOW-ENTRY)*- *                          flow_mapping_entry?- *                          FLOW-MAPPING-END- * flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?- */--#include "yaml_private.h"--/*- * Peek the next token in the token queue.- */--#define PEEK_TOKEN(parser)                                                      \-    ((parser->token_available || yaml_parser_fetch_more_tokens(parser)) ?       \-        parser->tokens.head : NULL)--/*- * Remove the next token from the queue (must be called after PEEK_TOKEN).- */--#define SKIP_TOKEN(parser)                                                      \-    (parser->token_available = 0,                                               \-     parser->tokens_parsed ++,                                                  \-     parser->stream_end_produced =                                              \-        (parser->tokens.head->type == YAML_STREAM_END_TOKEN),                   \-     parser->tokens.head ++)--/*- * Public API declarations.- */--YAML_DECLARE(int)-yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event);--/*- * Error handling.- */--static int-yaml_parser_set_parser_error(yaml_parser_t *parser,-        const char *problem, yaml_mark_t problem_mark);--static int-yaml_parser_set_parser_error_context(yaml_parser_t *parser,-        const char *context, yaml_mark_t context_mark,-        const char *problem, yaml_mark_t problem_mark);--/*- * State functions.- */--static int-yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event);--static int-yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event);--static int-yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event,-        int implicit);--static int-yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event);--static int-yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event);--static int-yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event,-        int block, int indentless_sequence);--static int-yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser,-        yaml_event_t *event, int first);--static int-yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser,-        yaml_event_t *event);--static int-yaml_parser_parse_block_mapping_key(yaml_parser_t *parser,-        yaml_event_t *event, int first);--static int-yaml_parser_parse_block_mapping_value(yaml_parser_t *parser,-        yaml_event_t *event);--static int-yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser,-        yaml_event_t *event, int first);--static int-yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser,-        yaml_event_t *event);--static int-yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser,-        yaml_event_t *event);--static int-yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser,-        yaml_event_t *event);--static int-yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser,-        yaml_event_t *event, int first);--static int-yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser,-        yaml_event_t *event, int empty);--/*- * Utility functions.- */--static int-yaml_parser_process_empty_scalar(yaml_parser_t *parser,-        yaml_event_t *event, yaml_mark_t mark);--static int-yaml_parser_process_directives(yaml_parser_t *parser,-        yaml_version_directive_t **version_directive_ref,-        yaml_tag_directive_t **tag_directives_start_ref,-        yaml_tag_directive_t **tag_directives_end_ref);--static int-yaml_parser_append_tag_directive(yaml_parser_t *parser,-        yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark);--/*- * Get the next event.- */--YAML_DECLARE(int)-yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event)-{-    assert(parser);     /* Non-NULL parser object is expected. */-    assert(event);      /* Non-NULL event object is expected. */--    /* Erase the event object. */--    memset(event, 0, sizeof(yaml_event_t));--    /* No events after the end of the stream or error. */--    if (parser->stream_end_produced || parser->error ||-            parser->state == YAML_PARSE_END_STATE) {-        return 1;-    }--    /* Generate the next event. */--    return yaml_parser_state_machine(parser, event);-}--/*- * Set parser error.- */--static int-yaml_parser_set_parser_error(yaml_parser_t *parser,-        const char *problem, yaml_mark_t problem_mark)-{-    parser->error = YAML_PARSER_ERROR;-    parser->problem = problem;-    parser->problem_mark = problem_mark;--    return 0;-}--static int-yaml_parser_set_parser_error_context(yaml_parser_t *parser,-        const char *context, yaml_mark_t context_mark,-        const char *problem, yaml_mark_t problem_mark)-{-    parser->error = YAML_PARSER_ERROR;-    parser->context = context;-    parser->context_mark = context_mark;-    parser->problem = problem;-    parser->problem_mark = problem_mark;--    return 0;-}---/*- * State dispatcher.- */--static int-yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event)-{-    switch (parser->state)-    {-        case YAML_PARSE_STREAM_START_STATE:-            return yaml_parser_parse_stream_start(parser, event);--        case YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE:-            return yaml_parser_parse_document_start(parser, event, 1);--        case YAML_PARSE_DOCUMENT_START_STATE:-            return yaml_parser_parse_document_start(parser, event, 0);--        case YAML_PARSE_DOCUMENT_CONTENT_STATE:-            return yaml_parser_parse_document_content(parser, event);--        case YAML_PARSE_DOCUMENT_END_STATE:-            return yaml_parser_parse_document_end(parser, event);--        case YAML_PARSE_BLOCK_NODE_STATE:-            return yaml_parser_parse_node(parser, event, 1, 0);--        case YAML_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:-            return yaml_parser_parse_node(parser, event, 1, 1);--        case YAML_PARSE_FLOW_NODE_STATE:-            return yaml_parser_parse_node(parser, event, 0, 0);--        case YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:-            return yaml_parser_parse_block_sequence_entry(parser, event, 1);--        case YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:-            return yaml_parser_parse_block_sequence_entry(parser, event, 0);--        case YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:-            return yaml_parser_parse_indentless_sequence_entry(parser, event);--        case YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:-            return yaml_parser_parse_block_mapping_key(parser, event, 1);--        case YAML_PARSE_BLOCK_MAPPING_KEY_STATE:-            return yaml_parser_parse_block_mapping_key(parser, event, 0);--        case YAML_PARSE_BLOCK_MAPPING_VALUE_STATE:-            return yaml_parser_parse_block_mapping_value(parser, event);--        case YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:-            return yaml_parser_parse_flow_sequence_entry(parser, event, 1);--        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE:-            return yaml_parser_parse_flow_sequence_entry(parser, event, 0);--        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:-            return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event);--        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:-            return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event);--        case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:-            return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event);--        case YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:-            return yaml_parser_parse_flow_mapping_key(parser, event, 1);--        case YAML_PARSE_FLOW_MAPPING_KEY_STATE:-            return yaml_parser_parse_flow_mapping_key(parser, event, 0);--        case YAML_PARSE_FLOW_MAPPING_VALUE_STATE:-            return yaml_parser_parse_flow_mapping_value(parser, event, 0);--        case YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:-            return yaml_parser_parse_flow_mapping_value(parser, event, 1);--        default:-            assert(1);      /* Invalid state. */-    }--    return 0;-}--/*- * Parse the production:- * stream   ::= STREAM-START implicit_document? explicit_document* STREAM-END- *              ************- */--static int-yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event)-{-    yaml_token_t *token;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type != YAML_STREAM_START_TOKEN) {-        return yaml_parser_set_parser_error(parser,-                "did not find expected <stream-start>", token->start_mark);-    }--    parser->state = YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE;-    STREAM_START_EVENT_INIT(*event, token->data.stream_start.encoding,-            token->start_mark, token->start_mark);-    SKIP_TOKEN(parser);--    return 1;-}--/*- * Parse the productions:- * implicit_document    ::= block_node DOCUMENT-END*- *                          *- * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*- *                          *************************- */--static int-yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event,-        int implicit)-{-    yaml_token_t *token;-    yaml_version_directive_t *version_directive = NULL;-    struct {-        yaml_tag_directive_t *start;-        yaml_tag_directive_t *end;-    } tag_directives = { NULL, NULL };--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    /* Parse extra document end indicators. */--    if (!implicit)-    {-        while (token->type == YAML_DOCUMENT_END_TOKEN) {-            SKIP_TOKEN(parser);-            token = PEEK_TOKEN(parser);-            if (!token) return 0;-        }-    }--    /* Parse an implicit document. */--    if (implicit && token->type != YAML_VERSION_DIRECTIVE_TOKEN &&-            token->type != YAML_TAG_DIRECTIVE_TOKEN &&-            token->type != YAML_DOCUMENT_START_TOKEN &&-            token->type != YAML_STREAM_END_TOKEN)-    {-        if (!yaml_parser_process_directives(parser, NULL, NULL, NULL))-            return 0;-        if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE))-            return 0;-        parser->state = YAML_PARSE_BLOCK_NODE_STATE;-        DOCUMENT_START_EVENT_INIT(*event, NULL, NULL, NULL, 1,-                token->start_mark, token->start_mark);-        return 1;-    }--    /* Parse an explicit document. */--    else if (token->type != YAML_STREAM_END_TOKEN)-    {-        yaml_mark_t start_mark, end_mark;-        start_mark = token->start_mark;-        if (!yaml_parser_process_directives(parser, &version_directive,-                    &tag_directives.start, &tag_directives.end))-            return 0;-        token = PEEK_TOKEN(parser);-        if (!token) goto error;-        if (token->type != YAML_DOCUMENT_START_TOKEN) {-            yaml_parser_set_parser_error(parser,-                    "did not find expected <document start>", token->start_mark);-            goto error;-        }-        if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE))-            goto error;-        parser->state = YAML_PARSE_DOCUMENT_CONTENT_STATE;-        end_mark = token->end_mark;-        DOCUMENT_START_EVENT_INIT(*event, version_directive,-                tag_directives.start, tag_directives.end, 0,-                start_mark, end_mark);-        SKIP_TOKEN(parser);-        version_directive = NULL;-        tag_directives.start = tag_directives.end = NULL;-        return 1;-    }--    /* Parse the stream end. */--    else-    {-        parser->state = YAML_PARSE_END_STATE;-        STREAM_END_EVENT_INIT(*event, token->start_mark, token->end_mark);-        SKIP_TOKEN(parser);-        return 1;-    }--error:-    yaml_free(version_directive);-    while (tag_directives.start != tag_directives.end) {-        yaml_free(tag_directives.end[-1].handle);-        yaml_free(tag_directives.end[-1].prefix);-        tag_directives.end --;-    }-    yaml_free(tag_directives.start);-    return 0;-}--/*- * Parse the productions:- * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*- *                                                    ***********- */--static int-yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event)-{-    yaml_token_t *token;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type == YAML_VERSION_DIRECTIVE_TOKEN ||-            token->type == YAML_TAG_DIRECTIVE_TOKEN ||-            token->type == YAML_DOCUMENT_START_TOKEN ||-            token->type == YAML_DOCUMENT_END_TOKEN ||-            token->type == YAML_STREAM_END_TOKEN) {-        parser->state = POP(parser, parser->states);-        return yaml_parser_process_empty_scalar(parser, event,-                token->start_mark);-    }-    else {-        return yaml_parser_parse_node(parser, event, 1, 0);-    }-}--/*- * Parse the productions:- * implicit_document    ::= block_node DOCUMENT-END*- *                                     *************- * explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*- *                                                                *************- */--static int-yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event)-{-    yaml_token_t *token;-    yaml_mark_t start_mark, end_mark;-    int implicit = 1;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    start_mark = end_mark = token->start_mark;--    if (token->type == YAML_DOCUMENT_END_TOKEN) {-        end_mark = token->end_mark;-        SKIP_TOKEN(parser);-        implicit = 0;-    }--    while (!STACK_EMPTY(parser, parser->tag_directives)) {-        yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives);-        yaml_free(tag_directive.handle);-        yaml_free(tag_directive.prefix);-    }--    parser->state = YAML_PARSE_DOCUMENT_START_STATE;-    DOCUMENT_END_EVENT_INIT(*event, implicit, start_mark, end_mark);--    return 1;-}--/*- * Parse the productions:- * block_node_or_indentless_sequence    ::=- *                          ALIAS- *                          *****- *                          | properties (block_content | indentless_block_sequence)?- *                            **********  *- *                          | block_content | indentless_block_sequence- *                            *- * block_node           ::= ALIAS- *                          *****- *                          | properties block_content?- *                            ********** *- *                          | block_content- *                            *- * flow_node            ::= ALIAS- *                          *****- *                          | properties flow_content?- *                            ********** *- *                          | flow_content- *                            *- * properties           ::= TAG ANCHOR? | ANCHOR TAG?- *                          *************************- * block_content        ::= block_collection | flow_collection | SCALAR- *                                                               ******- * flow_content         ::= flow_collection | SCALAR- *                                            ******- */--static int-yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event,-        int block, int indentless_sequence)-{-    yaml_token_t *token;-    yaml_char_t *anchor = NULL;-    yaml_char_t *tag_handle = NULL;-    yaml_char_t *tag_suffix = NULL;-    yaml_char_t *tag = NULL;-    yaml_mark_t start_mark, end_mark, tag_mark;-    int implicit;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type == YAML_ALIAS_TOKEN)-    {-        parser->state = POP(parser, parser->states);-        ALIAS_EVENT_INIT(*event, token->data.alias.value,-                token->start_mark, token->end_mark);-        SKIP_TOKEN(parser);-        return 1;-    }--    else-    {-        start_mark = end_mark = token->start_mark;--        if (token->type == YAML_ANCHOR_TOKEN)-        {-            anchor = token->data.anchor.value;-            start_mark = token->start_mark;-            end_mark = token->end_mark;-            SKIP_TOKEN(parser);-            token = PEEK_TOKEN(parser);-            if (!token) goto error;-            if (token->type == YAML_TAG_TOKEN)-            {-                tag_handle = token->data.tag.handle;-                tag_suffix = token->data.tag.suffix;-                tag_mark = token->start_mark;-                end_mark = token->end_mark;-                SKIP_TOKEN(parser);-                token = PEEK_TOKEN(parser);-                if (!token) goto error;-            }-        }-        else if (token->type == YAML_TAG_TOKEN)-        {-            tag_handle = token->data.tag.handle;-            tag_suffix = token->data.tag.suffix;-            start_mark = tag_mark = token->start_mark;-            end_mark = token->end_mark;-            SKIP_TOKEN(parser);-            token = PEEK_TOKEN(parser);-            if (!token) goto error;-            if (token->type == YAML_ANCHOR_TOKEN)-            {-                anchor = token->data.anchor.value;-                end_mark = token->end_mark;-                SKIP_TOKEN(parser);-                token = PEEK_TOKEN(parser);-                if (!token) goto error;-            }-        }--        if (tag_handle) {-            if (!*tag_handle) {-                tag = tag_suffix;-                yaml_free(tag_handle);-                tag_handle = tag_suffix = NULL;-            }-            else {-                yaml_tag_directive_t *tag_directive;-                for (tag_directive = parser->tag_directives.start;-                        tag_directive != parser->tag_directives.top;-                        tag_directive ++) {-                    if (strcmp((char *)tag_directive->handle, (char *)tag_handle) == 0) {-                        size_t prefix_len = strlen((char *)tag_directive->prefix);-                        size_t suffix_len = strlen((char *)tag_suffix);-                        tag = YAML_MALLOC(prefix_len+suffix_len+1);-                        if (!tag) {-                            parser->error = YAML_MEMORY_ERROR;-                            goto error;-                        }-                        memcpy(tag, tag_directive->prefix, prefix_len);-                        memcpy(tag+prefix_len, tag_suffix, suffix_len);-                        tag[prefix_len+suffix_len] = '\0';-                        yaml_free(tag_handle);-                        yaml_free(tag_suffix);-                        tag_handle = tag_suffix = NULL;-                        break;-                    }-                }-                if (!tag) {-                    yaml_parser_set_parser_error_context(parser,-                            "while parsing a node", start_mark,-                            "found undefined tag handle", tag_mark);-                    goto error;-                }-            }-        }--        implicit = (!tag || !*tag);-        if (indentless_sequence && token->type == YAML_BLOCK_ENTRY_TOKEN) {-            end_mark = token->end_mark;-            parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE;-            SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit,-                    YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark);-            return 1;-        }-        else {-            if (token->type == YAML_SCALAR_TOKEN) {-                int plain_implicit = 0;-                int quoted_implicit = 0;-                end_mark = token->end_mark;-                if ((token->data.scalar.style == YAML_PLAIN_SCALAR_STYLE && !tag)-                        || (tag && strcmp((char *)tag, "!") == 0)) {-                    plain_implicit = 1;-                }-                else if (!tag) {-                    quoted_implicit = 1;-                }-                parser->state = POP(parser, parser->states);-                SCALAR_EVENT_INIT(*event, anchor, tag,-                        token->data.scalar.value, token->data.scalar.length,-                        plain_implicit, quoted_implicit,-                        token->data.scalar.style, start_mark, end_mark);-                SKIP_TOKEN(parser);-                return 1;-            }-            else if (token->type == YAML_FLOW_SEQUENCE_START_TOKEN) {-                end_mark = token->end_mark;-                parser->state = YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE;-                SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit,-                        YAML_FLOW_SEQUENCE_STYLE, start_mark, end_mark);-                return 1;-            }-            else if (token->type == YAML_FLOW_MAPPING_START_TOKEN) {-                end_mark = token->end_mark;-                parser->state = YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE;-                MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit,-                        YAML_FLOW_MAPPING_STYLE, start_mark, end_mark);-                return 1;-            }-            else if (block && token->type == YAML_BLOCK_SEQUENCE_START_TOKEN) {-                end_mark = token->end_mark;-                parser->state = YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE;-                SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit,-                        YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark);-                return 1;-            }-            else if (block && token->type == YAML_BLOCK_MAPPING_START_TOKEN) {-                end_mark = token->end_mark;-                parser->state = YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE;-                MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit,-                        YAML_BLOCK_MAPPING_STYLE, start_mark, end_mark);-                return 1;-            }-            else if (anchor || tag) {-                yaml_char_t *value = YAML_MALLOC(1);-                if (!value) {-                    parser->error = YAML_MEMORY_ERROR;-                    goto error;-                }-                value[0] = '\0';-                parser->state = POP(parser, parser->states);-                SCALAR_EVENT_INIT(*event, anchor, tag, value, 0,-                        implicit, 0, YAML_PLAIN_SCALAR_STYLE,-                        start_mark, end_mark);-                return 1;-            }-            else {-                yaml_parser_set_parser_error_context(parser,-                        (block ? "while parsing a block node"-                         : "while parsing a flow node"), start_mark,-                        "did not find expected node content", token->start_mark);-                goto error;-            }-        }-    }--error:-    yaml_free(anchor);-    yaml_free(tag_handle);-    yaml_free(tag_suffix);-    yaml_free(tag);--    return 0;-}--/*- * Parse the productions:- * block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END- *                    ********************  *********** *             *********- */--static int-yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser,-        yaml_event_t *event, int first)-{-    yaml_token_t *token;--    if (first) {-        token = PEEK_TOKEN(parser);-        if (!PUSH(parser, parser->marks, token->start_mark))-            return 0;-        SKIP_TOKEN(parser);-    }--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type == YAML_BLOCK_ENTRY_TOKEN)-    {-        yaml_mark_t mark = token->end_mark;-        SKIP_TOKEN(parser);-        token = PEEK_TOKEN(parser);-        if (!token) return 0;-        if (token->type != YAML_BLOCK_ENTRY_TOKEN &&-                token->type != YAML_BLOCK_END_TOKEN) {-            if (!PUSH(parser, parser->states,-                        YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE))-                return 0;-            return yaml_parser_parse_node(parser, event, 1, 0);-        }-        else {-            parser->state = YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE;-            return yaml_parser_process_empty_scalar(parser, event, mark);-        }-    }--    else if (token->type == YAML_BLOCK_END_TOKEN)-    {-        parser->state = POP(parser, parser->states);-        (void)POP(parser, parser->marks);-        SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark);-        SKIP_TOKEN(parser);-        return 1;-    }--    else-    {-        return yaml_parser_set_parser_error_context(parser,-                "while parsing a block collection", POP(parser, parser->marks),-                "did not find expected '-' indicator", token->start_mark);-    }-}--/*- * Parse the productions:- * indentless_sequence  ::= (BLOCK-ENTRY block_node?)+- *                           *********** *- */--static int-yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser,-        yaml_event_t *event)-{-    yaml_token_t *token;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type == YAML_BLOCK_ENTRY_TOKEN)-    {-        yaml_mark_t mark = token->end_mark;-        SKIP_TOKEN(parser);-        token = PEEK_TOKEN(parser);-        if (!token) return 0;-        if (token->type != YAML_BLOCK_ENTRY_TOKEN &&-                token->type != YAML_KEY_TOKEN &&-                token->type != YAML_VALUE_TOKEN &&-                token->type != YAML_BLOCK_END_TOKEN) {-            if (!PUSH(parser, parser->states,-                        YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE))-                return 0;-            return yaml_parser_parse_node(parser, event, 1, 0);-        }-        else {-            parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE;-            return yaml_parser_process_empty_scalar(parser, event, mark);-        }-    }--    else-    {-        parser->state = POP(parser, parser->states);-        SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->start_mark);-        return 1;-    }-}--/*- * Parse the productions:- * block_mapping        ::= BLOCK-MAPPING_START- *                          *******************- *                          ((KEY block_node_or_indentless_sequence?)?- *                            *** *- *                          (VALUE block_node_or_indentless_sequence?)?)*- *- *                          BLOCK-END- *                          *********- */--static int-yaml_parser_parse_block_mapping_key(yaml_parser_t *parser,-        yaml_event_t *event, int first)-{-    yaml_token_t *token;--    if (first) {-        token = PEEK_TOKEN(parser);-        if (!PUSH(parser, parser->marks, token->start_mark))-            return 0;-        SKIP_TOKEN(parser);-    }--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type == YAML_KEY_TOKEN)-    {-        yaml_mark_t mark = token->end_mark;-        SKIP_TOKEN(parser);-        token = PEEK_TOKEN(parser);-        if (!token) return 0;-        if (token->type != YAML_KEY_TOKEN &&-                token->type != YAML_VALUE_TOKEN &&-                token->type != YAML_BLOCK_END_TOKEN) {-            if (!PUSH(parser, parser->states,-                        YAML_PARSE_BLOCK_MAPPING_VALUE_STATE))-                return 0;-            return yaml_parser_parse_node(parser, event, 1, 1);-        }-        else {-            parser->state = YAML_PARSE_BLOCK_MAPPING_VALUE_STATE;-            return yaml_parser_process_empty_scalar(parser, event, mark);-        }-    }--    else if (token->type == YAML_BLOCK_END_TOKEN)-    {-        parser->state = POP(parser, parser->states);-        (void)POP(parser, parser->marks);-        MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark);-        SKIP_TOKEN(parser);-        return 1;-    }--    else-    {-        return yaml_parser_set_parser_error_context(parser,-                "while parsing a block mapping", POP(parser, parser->marks),-                "did not find expected key", token->start_mark);-    }-}--/*- * Parse the productions:- * block_mapping        ::= BLOCK-MAPPING_START- *- *                          ((KEY block_node_or_indentless_sequence?)?- *- *                          (VALUE block_node_or_indentless_sequence?)?)*- *                           ***** *- *                          BLOCK-END- *- */--static int-yaml_parser_parse_block_mapping_value(yaml_parser_t *parser,-        yaml_event_t *event)-{-    yaml_token_t *token;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type == YAML_VALUE_TOKEN)-    {-        yaml_mark_t mark = token->end_mark;-        SKIP_TOKEN(parser);-        token = PEEK_TOKEN(parser);-        if (!token) return 0;-        if (token->type != YAML_KEY_TOKEN &&-                token->type != YAML_VALUE_TOKEN &&-                token->type != YAML_BLOCK_END_TOKEN) {-            if (!PUSH(parser, parser->states,-                        YAML_PARSE_BLOCK_MAPPING_KEY_STATE))-                return 0;-            return yaml_parser_parse_node(parser, event, 1, 1);-        }-        else {-            parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE;-            return yaml_parser_process_empty_scalar(parser, event, mark);-        }-    }--    else-    {-        parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE;-        return yaml_parser_process_empty_scalar(parser, event, token->start_mark);-    }-}--/*- * Parse the productions:- * flow_sequence        ::= FLOW-SEQUENCE-START- *                          *******************- *                          (flow_sequence_entry FLOW-ENTRY)*- *                           *                   **********- *                          flow_sequence_entry?- *                          *- *                          FLOW-SEQUENCE-END- *                          *****************- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?- *                          *- */--static int-yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser,-        yaml_event_t *event, int first)-{-    yaml_token_t *token;--    if (first) {-        token = PEEK_TOKEN(parser);-        if (!PUSH(parser, parser->marks, token->start_mark))-            return 0;-        SKIP_TOKEN(parser);-    }--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN)-    {-        if (!first) {-            if (token->type == YAML_FLOW_ENTRY_TOKEN) {-                SKIP_TOKEN(parser);-                token = PEEK_TOKEN(parser);-                if (!token) return 0;-            }-            else {-                return yaml_parser_set_parser_error_context(parser,-                        "while parsing a flow sequence", POP(parser, parser->marks),-                        "did not find expected ',' or ']'", token->start_mark);-            }-        }--        if (token->type == YAML_KEY_TOKEN) {-            parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE;-            MAPPING_START_EVENT_INIT(*event, NULL, NULL,-                    1, YAML_FLOW_MAPPING_STYLE,-                    token->start_mark, token->end_mark);-            SKIP_TOKEN(parser);-            return 1;-        }--        else if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN) {-            if (!PUSH(parser, parser->states,-                        YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE))-                return 0;-            return yaml_parser_parse_node(parser, event, 0, 0);-        }-    }--    parser->state = POP(parser, parser->states);-    (void)POP(parser, parser->marks);-    SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark);-    SKIP_TOKEN(parser);-    return 1;-}--/*- * Parse the productions:- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?- *                                      *** *- */--static int-yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser,-        yaml_event_t *event)-{-    yaml_token_t *token;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type != YAML_VALUE_TOKEN && token->type != YAML_FLOW_ENTRY_TOKEN-            && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) {-        if (!PUSH(parser, parser->states,-                    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE))-            return 0;-        return yaml_parser_parse_node(parser, event, 0, 0);-    }-    else {-        yaml_mark_t mark = token->end_mark;-        SKIP_TOKEN(parser);-        parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE;-        return yaml_parser_process_empty_scalar(parser, event, mark);-    }-}--/*- * Parse the productions:- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?- *                                                      ***** *- */--static int-yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser,-        yaml_event_t *event)-{-    yaml_token_t *token;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type == YAML_VALUE_TOKEN) {-        SKIP_TOKEN(parser);-        token = PEEK_TOKEN(parser);-        if (!token) return 0;-        if (token->type != YAML_FLOW_ENTRY_TOKEN-                && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) {-            if (!PUSH(parser, parser->states,-                        YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE))-                return 0;-            return yaml_parser_parse_node(parser, event, 0, 0);-        }-    }-    parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE;-    return yaml_parser_process_empty_scalar(parser, event, token->start_mark);-}--/*- * Parse the productions:- * flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?- *                                                                      *- */--static int-yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser,-        yaml_event_t *event)-{-    yaml_token_t *token;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE;--    MAPPING_END_EVENT_INIT(*event, token->start_mark, token->start_mark);-    return 1;-}--/*- * Parse the productions:- * flow_mapping         ::= FLOW-MAPPING-START- *                          ******************- *                          (flow_mapping_entry FLOW-ENTRY)*- *                           *                  **********- *                          flow_mapping_entry?- *                          ******************- *                          FLOW-MAPPING-END- *                          ****************- * flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?- *                          *           *** *- */--static int-yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser,-        yaml_event_t *event, int first)-{-    yaml_token_t *token;--    if (first) {-        token = PEEK_TOKEN(parser);-        if (!PUSH(parser, parser->marks, token->start_mark))-            return 0;-        SKIP_TOKEN(parser);-    }--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (token->type != YAML_FLOW_MAPPING_END_TOKEN)-    {-        if (!first) {-            if (token->type == YAML_FLOW_ENTRY_TOKEN) {-                SKIP_TOKEN(parser);-                token = PEEK_TOKEN(parser);-                if (!token) return 0;-            }-            else {-                return yaml_parser_set_parser_error_context(parser,-                        "while parsing a flow mapping", POP(parser, parser->marks),-                        "did not find expected ',' or '}'", token->start_mark);-            }-        }--        if (token->type == YAML_KEY_TOKEN) {-            SKIP_TOKEN(parser);-            token = PEEK_TOKEN(parser);-            if (!token) return 0;-            if (token->type != YAML_VALUE_TOKEN-                    && token->type != YAML_FLOW_ENTRY_TOKEN-                    && token->type != YAML_FLOW_MAPPING_END_TOKEN) {-                if (!PUSH(parser, parser->states,-                            YAML_PARSE_FLOW_MAPPING_VALUE_STATE))-                    return 0;-                return yaml_parser_parse_node(parser, event, 0, 0);-            }-            else {-                parser->state = YAML_PARSE_FLOW_MAPPING_VALUE_STATE;-                return yaml_parser_process_empty_scalar(parser, event,-                        token->start_mark);-            }-        }-        else if (token->type != YAML_FLOW_MAPPING_END_TOKEN) {-            if (!PUSH(parser, parser->states,-                        YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE))-                return 0;-            return yaml_parser_parse_node(parser, event, 0, 0);-        }-    }--    parser->state = POP(parser, parser->states);-    (void)POP(parser, parser->marks);-    MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark);-    SKIP_TOKEN(parser);-    return 1;-}--/*- * Parse the productions:- * flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?- *                                   *                  ***** *- */--static int-yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser,-        yaml_event_t *event, int empty)-{-    yaml_token_t *token;--    token = PEEK_TOKEN(parser);-    if (!token) return 0;--    if (empty) {-        parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE;-        return yaml_parser_process_empty_scalar(parser, event,-                token->start_mark);-    }--    if (token->type == YAML_VALUE_TOKEN) {-        SKIP_TOKEN(parser);-        token = PEEK_TOKEN(parser);-        if (!token) return 0;-        if (token->type != YAML_FLOW_ENTRY_TOKEN-                && token->type != YAML_FLOW_MAPPING_END_TOKEN) {-            if (!PUSH(parser, parser->states,-                        YAML_PARSE_FLOW_MAPPING_KEY_STATE))-                return 0;-            return yaml_parser_parse_node(parser, event, 0, 0);-        }-    }--    parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE;-    return yaml_parser_process_empty_scalar(parser, event, token->start_mark);-}--/*- * Generate an empty scalar event.- */--static int-yaml_parser_process_empty_scalar(yaml_parser_t *parser, yaml_event_t *event,-        yaml_mark_t mark)-{-    yaml_char_t *value;--    value = YAML_MALLOC(1);-    if (!value) {-        parser->error = YAML_MEMORY_ERROR;-        return 0;-    }-    value[0] = '\0';--    SCALAR_EVENT_INIT(*event, NULL, NULL, value, 0,-            1, 0, YAML_PLAIN_SCALAR_STYLE, mark, mark);--    return 1;-}--/*- * Parse directives.- */--static int-yaml_parser_process_directives(yaml_parser_t *parser,-        yaml_version_directive_t **version_directive_ref,-        yaml_tag_directive_t **tag_directives_start_ref,-        yaml_tag_directive_t **tag_directives_end_ref)-{-    yaml_tag_directive_t default_tag_directives[] = {-        {(yaml_char_t *)"!", (yaml_char_t *)"!"},-        {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"},-        {NULL, NULL}-    };-    yaml_tag_directive_t *default_tag_directive;-    yaml_version_directive_t *version_directive = NULL;-    struct {-        yaml_tag_directive_t *start;-        yaml_tag_directive_t *end;-        yaml_tag_directive_t *top;-    } tag_directives = { NULL, NULL, NULL };-    yaml_token_t *token;--    if (!STACK_INIT(parser, tag_directives, yaml_tag_directive_t*))-        goto error;--    token = PEEK_TOKEN(parser);-    if (!token) goto error;--    while (token->type == YAML_VERSION_DIRECTIVE_TOKEN ||-            token->type == YAML_TAG_DIRECTIVE_TOKEN)-    {-        if (token->type == YAML_VERSION_DIRECTIVE_TOKEN) {-            if (version_directive) {-                yaml_parser_set_parser_error(parser,-                        "found duplicate %YAML directive", token->start_mark);-                goto error;-            }-            if (token->data.version_directive.major != 1-                    || token->data.version_directive.minor != 1) {-                yaml_parser_set_parser_error(parser,-                        "found incompatible YAML document", token->start_mark);-                goto error;-            }-            version_directive = YAML_MALLOC_STATIC(yaml_version_directive_t);-            if (!version_directive) {-                parser->error = YAML_MEMORY_ERROR;-                goto error;-            }-            version_directive->major = token->data.version_directive.major;-            version_directive->minor = token->data.version_directive.minor;-        }--        else if (token->type == YAML_TAG_DIRECTIVE_TOKEN) {-            yaml_tag_directive_t value;-            value.handle = token->data.tag_directive.handle;-            value.prefix = token->data.tag_directive.prefix;--            if (!yaml_parser_append_tag_directive(parser, value, 0,-                        token->start_mark))-                goto error;-            if (!PUSH(parser, tag_directives, value))-                goto error;-        }--        SKIP_TOKEN(parser);-        token = PEEK_TOKEN(parser);-        if (!token) goto error;-    }--    for (default_tag_directive = default_tag_directives;-            default_tag_directive->handle; default_tag_directive++) {-        if (!yaml_parser_append_tag_directive(parser, *default_tag_directive, 1,-                    token->start_mark))-            goto error;-    }--    if (version_directive_ref) {-        *version_directive_ref = version_directive;-    }-    if (tag_directives_start_ref) {-        if (STACK_EMPTY(parser, tag_directives)) {-            *tag_directives_start_ref = *tag_directives_end_ref = NULL;-            STACK_DEL(parser, tag_directives);-        }-        else {-            *tag_directives_start_ref = tag_directives.start;-            *tag_directives_end_ref = tag_directives.top;-        }-    }-    else {-        STACK_DEL(parser, tag_directives);-    }--    return 1;--error:-    yaml_free(version_directive);-    while (!STACK_EMPTY(parser, tag_directives)) {-        yaml_tag_directive_t tag_directive = POP(parser, tag_directives);-        yaml_free(tag_directive.handle);-        yaml_free(tag_directive.prefix);-    }-    STACK_DEL(parser, tag_directives);-    return 0;-}--/*- * Append a tag directive to the directives stack.- */--static int-yaml_parser_append_tag_directive(yaml_parser_t *parser,-        yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark)-{-    yaml_tag_directive_t *tag_directive;-    yaml_tag_directive_t copy = { NULL, NULL };--    for (tag_directive = parser->tag_directives.start;-            tag_directive != parser->tag_directives.top; tag_directive ++) {-        if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) {-            if (allow_duplicates)-                return 1;-            return yaml_parser_set_parser_error(parser,-                    "found duplicate %TAG directive", mark);-        }-    }--    copy.handle = yaml_strdup(value.handle);-    copy.prefix = yaml_strdup(value.prefix);-    if (!copy.handle || !copy.prefix) {-        parser->error = YAML_MEMORY_ERROR;-        goto error;-    }--    if (!PUSH(parser, parser->tag_directives, copy))-        goto error;--    return 1;--error:-    yaml_free(copy.handle);-    yaml_free(copy.prefix);-    return 0;-}-
− libyaml/reader.c 
@@ -1,469 +0,0 @@--#include "yaml_private.h"--/*- * Declarations.- */--static int-yaml_parser_set_reader_error(yaml_parser_t *parser, const char *problem,-        size_t offset, int value);--static int-yaml_parser_update_raw_buffer(yaml_parser_t *parser);--static int-yaml_parser_determine_encoding(yaml_parser_t *parser);--YAML_DECLARE(int)-yaml_parser_update_buffer(yaml_parser_t *parser, size_t length);--/*- * Set the reader error and return 0.- */--static int-yaml_parser_set_reader_error(yaml_parser_t *parser, const char *problem,-        size_t offset, int value)-{-    parser->error = YAML_READER_ERROR;-    parser->problem = problem;-    parser->problem_offset = offset;-    parser->problem_value = value;--    return 0;-}--/*- * Byte order marks.- */--#define BOM_UTF8    "\xef\xbb\xbf"-#define BOM_UTF16LE "\xff\xfe"-#define BOM_UTF16BE "\xfe\xff"--/*- * Determine the input stream encoding by checking the BOM symbol. If no BOM is- * found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.- */--static int-yaml_parser_determine_encoding(yaml_parser_t *parser)-{-    /* Ensure that we had enough bytes in the raw buffer. */--    while (!parser->eof-            && parser->raw_buffer.last - parser->raw_buffer.pointer < 3) {-        if (!yaml_parser_update_raw_buffer(parser)) {-            return 0;-        }-    }--    /* Determine the encoding. */--    if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 2-            && !memcmp(parser->raw_buffer.pointer, BOM_UTF16LE, 2)) {-        parser->encoding = YAML_UTF16LE_ENCODING;-        parser->raw_buffer.pointer += 2;-        parser->offset += 2;-    }-    else if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 2-            && !memcmp(parser->raw_buffer.pointer, BOM_UTF16BE, 2)) {-        parser->encoding = YAML_UTF16BE_ENCODING;-        parser->raw_buffer.pointer += 2;-        parser->offset += 2;-    }-    else if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 3-            && !memcmp(parser->raw_buffer.pointer, BOM_UTF8, 3)) {-        parser->encoding = YAML_UTF8_ENCODING;-        parser->raw_buffer.pointer += 3;-        parser->offset += 3;-    }-    else {-        parser->encoding = YAML_UTF8_ENCODING;-    }--    return 1;-}--/*- * Update the raw buffer.- */--static int-yaml_parser_update_raw_buffer(yaml_parser_t *parser)-{-    size_t size_read = 0;--    /* Return if the raw buffer is full. */--    if (parser->raw_buffer.start == parser->raw_buffer.pointer-            && parser->raw_buffer.last == parser->raw_buffer.end)-        return 1;--    /* Return on EOF. */--    if (parser->eof) return 1;--    /* Move the remaining bytes in the raw buffer to the beginning. */--    if (parser->raw_buffer.start < parser->raw_buffer.pointer-            && parser->raw_buffer.pointer < parser->raw_buffer.last) {-        memmove(parser->raw_buffer.start, parser->raw_buffer.pointer,-                parser->raw_buffer.last - parser->raw_buffer.pointer);-    }-    parser->raw_buffer.last -=-        parser->raw_buffer.pointer - parser->raw_buffer.start;-    parser->raw_buffer.pointer = parser->raw_buffer.start;--    /* Call the read handler to fill the buffer. */--    if (!parser->read_handler(parser->read_handler_data, parser->raw_buffer.last,-                parser->raw_buffer.end - parser->raw_buffer.last, &size_read)) {-        return yaml_parser_set_reader_error(parser, "input error",-                parser->offset, -1);-    }-    parser->raw_buffer.last += size_read;-    if (!size_read) {-        parser->eof = 1;-    }--    return 1;-}--/*- * Ensure that the buffer contains at least `length` characters.- * Return 1 on success, 0 on failure.- *- * The length is supposed to be significantly less that the buffer size.- */--YAML_DECLARE(int)-yaml_parser_update_buffer(yaml_parser_t *parser, size_t length)-{-    int first = 1;--    assert(parser->read_handler);   /* Read handler must be set. */--    /* If the EOF flag is set and the raw buffer is empty, do nothing. */--    if (parser->eof && parser->raw_buffer.pointer == parser->raw_buffer.last)-        return 1;--    /* Return if the buffer contains enough characters. */--    if (parser->unread >= length)-        return 1;--    /* Determine the input encoding if it is not known yet. */--    if (!parser->encoding) {-        if (!yaml_parser_determine_encoding(parser))-            return 0;-    }--    /* Move the unread characters to the beginning of the buffer. */--    if (parser->buffer.start < parser->buffer.pointer-            && parser->buffer.pointer < parser->buffer.last) {-        size_t size = parser->buffer.last - parser->buffer.pointer;-        memmove(parser->buffer.start, parser->buffer.pointer, size);-        parser->buffer.pointer = parser->buffer.start;-        parser->buffer.last = parser->buffer.start + size;-    }-    else if (parser->buffer.pointer == parser->buffer.last) {-        parser->buffer.pointer = parser->buffer.start;-        parser->buffer.last = parser->buffer.start;-    }--    /* Fill the buffer until it has enough characters. */--    while (parser->unread < length)-    {-        /* Fill the raw buffer if necessary. */--        if (!first || parser->raw_buffer.pointer == parser->raw_buffer.last) {-            if (!yaml_parser_update_raw_buffer(parser)) return 0;-        }-        first = 0;--        /* Decode the raw buffer. */--        while (parser->raw_buffer.pointer != parser->raw_buffer.last)-        {-            unsigned int value = 0, value2 = 0;-            int incomplete = 0;-            unsigned char octet;-            unsigned int width = 0;-            int low, high;-            size_t k;-            size_t raw_unread = parser->raw_buffer.last - parser->raw_buffer.pointer;--            /* Decode the next character. */--            switch (parser->encoding)-            {-                case YAML_UTF8_ENCODING:--                    /*-                     * Decode a UTF-8 character.  Check RFC 3629-                     * (http://www.ietf.org/rfc/rfc3629.txt) for more details.-                     *-                     * The following table (taken from the RFC) is used for-                     * decoding.-                     *-                     *    Char. number range |        UTF-8 octet sequence-                     *      (hexadecimal)    |              (binary)-                     *   --------------------+-------------------------------------                     *   0000 0000-0000 007F | 0xxxxxxx-                     *   0000 0080-0000 07FF | 110xxxxx 10xxxxxx-                     *   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx-                     *   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx-                     *-                     * Additionally, the characters in the range 0xD800-0xDFFF-                     * are prohibited as they are reserved for use with UTF-16-                     * surrogate pairs.-                     */--                    /* Determine the length of the UTF-8 sequence. */--                    octet = parser->raw_buffer.pointer[0];-                    width = (octet & 0x80) == 0x00 ? 1 :-                            (octet & 0xE0) == 0xC0 ? 2 :-                            (octet & 0xF0) == 0xE0 ? 3 :-                            (octet & 0xF8) == 0xF0 ? 4 : 0;--                    /* Check if the leading octet is valid. */--                    if (!width)-                        return yaml_parser_set_reader_error(parser,-                                "invalid leading UTF-8 octet",-                                parser->offset, octet);--                    /* Check if the raw buffer contains an incomplete character. */--                    if (width > raw_unread) {-                        if (parser->eof) {-                            return yaml_parser_set_reader_error(parser,-                                    "incomplete UTF-8 octet sequence",-                                    parser->offset, -1);-                        }-                        incomplete = 1;-                        break;-                    }--                    /* Decode the leading octet. */--                    value = (octet & 0x80) == 0x00 ? octet & 0x7F :-                            (octet & 0xE0) == 0xC0 ? octet & 0x1F :-                            (octet & 0xF0) == 0xE0 ? octet & 0x0F :-                            (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;--                    /* Check and decode the trailing octets. */--                    for (k = 1; k < width; k ++)-                    {-                        octet = parser->raw_buffer.pointer[k];--                        /* Check if the octet is valid. */--                        if ((octet & 0xC0) != 0x80)-                            return yaml_parser_set_reader_error(parser,-                                    "invalid trailing UTF-8 octet",-                                    parser->offset+k, octet);--                        /* Decode the octet. */--                        value = (value << 6) + (octet & 0x3F);-                    }--                    /* Check the length of the sequence against the value. */--                    if (!((width == 1) ||-                            (width == 2 && value >= 0x80) ||-                            (width == 3 && value >= 0x800) ||-                            (width == 4 && value >= 0x10000)))-                        return yaml_parser_set_reader_error(parser,-                                "invalid length of a UTF-8 sequence",-                                parser->offset, -1);--                    /* Check the range of the value. */--                    if ((value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF)-                        return yaml_parser_set_reader_error(parser,-                                "invalid Unicode character",-                                parser->offset, value);--                    break;--                case YAML_UTF16LE_ENCODING:-                case YAML_UTF16BE_ENCODING:--                    low = (parser->encoding == YAML_UTF16LE_ENCODING ? 0 : 1);-                    high = (parser->encoding == YAML_UTF16LE_ENCODING ? 1 : 0);--                    /*-                     * The UTF-16 encoding is not as simple as one might-                     * naively think.  Check RFC 2781-                     * (http://www.ietf.org/rfc/rfc2781.txt).-                     *-                     * Normally, two subsequent bytes describe a Unicode-                     * character.  However a special technique (called a-                     * surrogate pair) is used for specifying character-                     * values larger than 0xFFFF.-                     *-                     * A surrogate pair consists of two pseudo-characters:-                     *      high surrogate area (0xD800-0xDBFF)-                     *      low surrogate area (0xDC00-0xDFFF)-                     *-                     * The following formulas are used for decoding-                     * and encoding characters using surrogate pairs:-                     *-                     *  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)-                     *  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)-                     *  W1 = 110110yyyyyyyyyy-                     *  W2 = 110111xxxxxxxxxx-                     *-                     * where U is the character value, W1 is the high surrogate-                     * area, W2 is the low surrogate area.-                     */--                    /* Check for incomplete UTF-16 character. */--                    if (raw_unread < 2) {-                        if (parser->eof) {-                            return yaml_parser_set_reader_error(parser,-                                    "incomplete UTF-16 character",-                                    parser->offset, -1);-                        }-                        incomplete = 1;-                        break;-                    }--                    /* Get the character. */--                    value = parser->raw_buffer.pointer[low]-                        + (parser->raw_buffer.pointer[high] << 8);--                    /* Check for unexpected low surrogate area. */--                    if ((value & 0xFC00) == 0xDC00)-                        return yaml_parser_set_reader_error(parser,-                                "unexpected low surrogate area",-                                parser->offset, value);--                    /* Check for a high surrogate area. */--                    if ((value & 0xFC00) == 0xD800) {--                        width = 4;--                        /* Check for incomplete surrogate pair. */--                        if (raw_unread < 4) {-                            if (parser->eof) {-                                return yaml_parser_set_reader_error(parser,-                                        "incomplete UTF-16 surrogate pair",-                                        parser->offset, -1);-                            }-                            incomplete = 1;-                            break;-                        }--                        /* Get the next character. */--                        value2 = parser->raw_buffer.pointer[low+2]-                            + (parser->raw_buffer.pointer[high+2] << 8);--                        /* Check for a low surrogate area. */--                        if ((value2 & 0xFC00) != 0xDC00)-                            return yaml_parser_set_reader_error(parser,-                                    "expected low surrogate area",-                                    parser->offset+2, value2);--                        /* Generate the value of the surrogate pair. */--                        value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF);-                    }--                    else {-                        width = 2;-                    }--                    break;--                default:-                    assert(1);      /* Impossible. */-            }--            /* Check if the raw buffer contains enough bytes to form a character. */--            if (incomplete) break;--            /*-             * Check if the character is in the allowed range:-             *      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit)-             *      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit)-             *      | [#x10000-#x10FFFF]                        (32 bit)-             */--            if (! (value == 0x09 || value == 0x0A || value == 0x0D-                        || (value >= 0x20 && value <= 0x7E)-                        || (value == 0x85) || (value >= 0xA0 && value <= 0xD7FF)-                        || (value >= 0xE000 && value <= 0xFFFD)-                        || (value >= 0x10000 && value <= 0x10FFFF)))-                return yaml_parser_set_reader_error(parser,-                        "control characters are not allowed",-                        parser->offset, value);--            /* Move the raw pointers. */--            parser->raw_buffer.pointer += width;-            parser->offset += width;--            /* Finally put the character into the buffer. */--            /* 0000 0000-0000 007F -> 0xxxxxxx */-            if (value <= 0x7F) {-                *(parser->buffer.last++) = value;-            }-            /* 0000 0080-0000 07FF -> 110xxxxx 10xxxxxx */-            else if (value <= 0x7FF) {-                *(parser->buffer.last++) = 0xC0 + (value >> 6);-                *(parser->buffer.last++) = 0x80 + (value & 0x3F);-            }-            /* 0000 0800-0000 FFFF -> 1110xxxx 10xxxxxx 10xxxxxx */-            else if (value <= 0xFFFF) {-                *(parser->buffer.last++) = 0xE0 + (value >> 12);-                *(parser->buffer.last++) = 0x80 + ((value >> 6) & 0x3F);-                *(parser->buffer.last++) = 0x80 + (value & 0x3F);-            }-            /* 0001 0000-0010 FFFF -> 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */-            else {-                *(parser->buffer.last++) = 0xF0 + (value >> 18);-                *(parser->buffer.last++) = 0x80 + ((value >> 12) & 0x3F);-                *(parser->buffer.last++) = 0x80 + ((value >> 6) & 0x3F);-                *(parser->buffer.last++) = 0x80 + (value & 0x3F);-            }--            parser->unread ++;-        }--        /* On EOF, put NUL into the buffer and return. */--        if (parser->eof) {-            *(parser->buffer.last++) = '\0';-            parser->unread ++;-            return 1;-        }--    }--    if (parser->offset >= MAX_FILE_SIZE) {-        return yaml_parser_set_reader_error(parser, "input is too long",-            parser->offset, -1);-    }--    return 1;-}
− libyaml/scanner.c 
@@ -1,3578 +0,0 @@--/*- * Introduction- * ************- *- * The following notes assume that you are familiar with the YAML specification- * (http://yaml.org/spec/cvs/current.html).  We mostly follow it, although in- * some cases we are less restrictive that it requires.- *- * The process of transforming a YAML stream into a sequence of events is- * divided on two steps: Scanning and Parsing.- *- * The Scanner transforms the input stream into a sequence of tokens, while the- * parser transform the sequence of tokens produced by the Scanner into a- * sequence of parsing events.- *- * The Scanner is rather clever and complicated. The Parser, on the contrary,- * is a straightforward implementation of a recursive-descendant parser (or,- * LL(1) parser, as it is usually called).- *- * Actually there are two issues of Scanning that might be called "clever", the- * rest is quite straightforward.  The issues are "block collection start" and- * "simple keys".  Both issues are explained below in details.- *- * Here the Scanning step is explained and implemented.  We start with the list- * of all the tokens produced by the Scanner together with short descriptions.- *- * Now, tokens:- *- *      STREAM-START(encoding)          # The stream start.- *      STREAM-END                      # The stream end.- *      VERSION-DIRECTIVE(major,minor)  # The '%YAML' directive.- *      TAG-DIRECTIVE(handle,prefix)    # The '%TAG' directive.- *      DOCUMENT-START                  # '---'- *      DOCUMENT-END                    # '...'- *      BLOCK-SEQUENCE-START            # Indentation increase denoting a block- *      BLOCK-MAPPING-START             # sequence or a block mapping.- *      BLOCK-END                       # Indentation decrease.- *      FLOW-SEQUENCE-START             # '['- *      FLOW-SEQUENCE-END               # ']'- *      BLOCK-SEQUENCE-START            # '{'- *      BLOCK-SEQUENCE-END              # '}'- *      BLOCK-ENTRY                     # '-'- *      FLOW-ENTRY                      # ','- *      KEY                             # '?' or nothing (simple keys).- *      VALUE                           # ':'- *      ALIAS(anchor)                   # '*anchor'- *      ANCHOR(anchor)                  # '&anchor'- *      TAG(handle,suffix)              # '!handle!suffix'- *      SCALAR(value,style)             # A scalar.- *- * The following two tokens are "virtual" tokens denoting the beginning and the- * end of the stream:- *- *      STREAM-START(encoding)- *      STREAM-END- *- * We pass the information about the input stream encoding with the- * STREAM-START token.- *- * The next two tokens are responsible for tags:- *- *      VERSION-DIRECTIVE(major,minor)- *      TAG-DIRECTIVE(handle,prefix)- *- * Example:- *- *      %YAML   1.1- *      %TAG    !   !foo- *      %TAG    !yaml!  tag:yaml.org,2002:- *      ---- *- * The corresponding sequence of tokens:- *- *      STREAM-START(utf-8)- *      VERSION-DIRECTIVE(1,1)- *      TAG-DIRECTIVE("!","!foo")- *      TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:")- *      DOCUMENT-START- *      STREAM-END- *- * Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole- * line.- *- * The document start and end indicators are represented by:- *- *      DOCUMENT-START- *      DOCUMENT-END- *- * Note that if a YAML stream contains an implicit document (without '---'- * and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be- * produced.- *- * In the following examples, we present whole documents together with the- * produced tokens.- *- *      1. An implicit document:- *- *          'a scalar'- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          SCALAR("a scalar",single-quoted)- *          STREAM-END- *- *      2. An explicit document:- *- *          ---- *          'a scalar'- *          ...- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          DOCUMENT-START- *          SCALAR("a scalar",single-quoted)- *          DOCUMENT-END- *          STREAM-END- *- *      3. Several documents in a stream:- *- *          'a scalar'- *          ---- *          'another scalar'- *          ---- *          'yet another scalar'- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          SCALAR("a scalar",single-quoted)- *          DOCUMENT-START- *          SCALAR("another scalar",single-quoted)- *          DOCUMENT-START- *          SCALAR("yet another scalar",single-quoted)- *          STREAM-END- *- * We have already introduced the SCALAR token above.  The following tokens are- * used to describe aliases, anchors, tag, and scalars:- *- *      ALIAS(anchor)- *      ANCHOR(anchor)- *      TAG(handle,suffix)- *      SCALAR(value,style)- *- * The following series of examples illustrate the usage of these tokens:- *- *      1. A recursive sequence:- *- *          &A [ *A ]- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          ANCHOR("A")- *          FLOW-SEQUENCE-START- *          ALIAS("A")- *          FLOW-SEQUENCE-END- *          STREAM-END- *- *      2. A tagged scalar:- *- *          !!float "3.14"  # A good approximation.- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          TAG("!!","float")- *          SCALAR("3.14",double-quoted)- *          STREAM-END- *- *      3. Various scalar styles:- *- *          --- # Implicit empty plain scalars do not produce tokens.- *          --- a plain scalar- *          --- 'a single-quoted scalar'- *          --- "a double-quoted scalar"- *          --- |-- *            a literal scalar- *          --- >-- *            a folded- *            scalar- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          DOCUMENT-START- *          DOCUMENT-START- *          SCALAR("a plain scalar",plain)- *          DOCUMENT-START- *          SCALAR("a single-quoted scalar",single-quoted)- *          DOCUMENT-START- *          SCALAR("a double-quoted scalar",double-quoted)- *          DOCUMENT-START- *          SCALAR("a literal scalar",literal)- *          DOCUMENT-START- *          SCALAR("a folded scalar",folded)- *          STREAM-END- *- * Now it's time to review collection-related tokens. We will start with- * flow collections:- *- *      FLOW-SEQUENCE-START- *      FLOW-SEQUENCE-END- *      FLOW-MAPPING-START- *      FLOW-MAPPING-END- *      FLOW-ENTRY- *      KEY- *      VALUE- *- * The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and- * FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}'- * correspondingly.  FLOW-ENTRY represent the ',' indicator.  Finally the- * indicators '?' and ':', which are used for denoting mapping keys and values,- * are represented by the KEY and VALUE tokens.- *- * The following examples show flow collections:- *- *      1. A flow sequence:- *- *          [item 1, item 2, item 3]- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          FLOW-SEQUENCE-START- *          SCALAR("item 1",plain)- *          FLOW-ENTRY- *          SCALAR("item 2",plain)- *          FLOW-ENTRY- *          SCALAR("item 3",plain)- *          FLOW-SEQUENCE-END- *          STREAM-END- *- *      2. A flow mapping:- *- *          {- *              a simple key: a value,  # Note that the KEY token is produced.- *              ? a complex key: another value,- *          }- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          FLOW-MAPPING-START- *          KEY- *          SCALAR("a simple key",plain)- *          VALUE- *          SCALAR("a value",plain)- *          FLOW-ENTRY- *          KEY- *          SCALAR("a complex key",plain)- *          VALUE- *          SCALAR("another value",plain)- *          FLOW-ENTRY- *          FLOW-MAPPING-END- *          STREAM-END- *- * A simple key is a key which is not denoted by the '?' indicator.  Note that- * the Scanner still produce the KEY token whenever it encounters a simple key.- *- * For scanning block collections, the following tokens are used (note that we- * repeat KEY and VALUE here):- *- *      BLOCK-SEQUENCE-START- *      BLOCK-MAPPING-START- *      BLOCK-END- *      BLOCK-ENTRY- *      KEY- *      VALUE- *- * The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation- * increase that precedes a block collection (cf. the INDENT token in Python).- * The token BLOCK-END denote indentation decrease that ends a block collection- * (cf. the DEDENT token in Python).  However YAML has some syntax pecularities- * that makes detections of these tokens more complex.- *- * The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators- * '-', '?', and ':' correspondingly.- *- * The following examples show how the tokens BLOCK-SEQUENCE-START,- * BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner:- *- *      1. Block sequences:- *- *          - item 1- *          - item 2- *          -- *            - item 3.1- *            - item 3.2- *          -- *            key 1: value 1- *            key 2: value 2- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          BLOCK-SEQUENCE-START- *          BLOCK-ENTRY- *          SCALAR("item 1",plain)- *          BLOCK-ENTRY- *          SCALAR("item 2",plain)- *          BLOCK-ENTRY- *          BLOCK-SEQUENCE-START- *          BLOCK-ENTRY- *          SCALAR("item 3.1",plain)- *          BLOCK-ENTRY- *          SCALAR("item 3.2",plain)- *          BLOCK-END- *          BLOCK-ENTRY- *          BLOCK-MAPPING-START- *          KEY- *          SCALAR("key 1",plain)- *          VALUE- *          SCALAR("value 1",plain)- *          KEY- *          SCALAR("key 2",plain)- *          VALUE- *          SCALAR("value 2",plain)- *          BLOCK-END- *          BLOCK-END- *          STREAM-END- *- *      2. Block mappings:- *- *          a simple key: a value   # The KEY token is produced here.- *          ? a complex key- *          : another value- *          a mapping:- *            key 1: value 1- *            key 2: value 2- *          a sequence:- *            - item 1- *            - item 2- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          BLOCK-MAPPING-START- *          KEY- *          SCALAR("a simple key",plain)- *          VALUE- *          SCALAR("a value",plain)- *          KEY- *          SCALAR("a complex key",plain)- *          VALUE- *          SCALAR("another value",plain)- *          KEY- *          SCALAR("a mapping",plain)- *          BLOCK-MAPPING-START- *          KEY- *          SCALAR("key 1",plain)- *          VALUE- *          SCALAR("value 1",plain)- *          KEY- *          SCALAR("key 2",plain)- *          VALUE- *          SCALAR("value 2",plain)- *          BLOCK-END- *          KEY- *          SCALAR("a sequence",plain)- *          VALUE- *          BLOCK-SEQUENCE-START- *          BLOCK-ENTRY- *          SCALAR("item 1",plain)- *          BLOCK-ENTRY- *          SCALAR("item 2",plain)- *          BLOCK-END- *          BLOCK-END- *          STREAM-END- *- * YAML does not always require to start a new block collection from a new- * line.  If the current line contains only '-', '?', and ':' indicators, a new- * block collection may start at the current line.  The following examples- * illustrate this case:- *- *      1. Collections in a sequence:- *- *          - - item 1- *            - item 2- *          - key 1: value 1- *            key 2: value 2- *          - ? complex key- *            : complex value- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          BLOCK-SEQUENCE-START- *          BLOCK-ENTRY- *          BLOCK-SEQUENCE-START- *          BLOCK-ENTRY- *          SCALAR("item 1",plain)- *          BLOCK-ENTRY- *          SCALAR("item 2",plain)- *          BLOCK-END- *          BLOCK-ENTRY- *          BLOCK-MAPPING-START- *          KEY- *          SCALAR("key 1",plain)- *          VALUE- *          SCALAR("value 1",plain)- *          KEY- *          SCALAR("key 2",plain)- *          VALUE- *          SCALAR("value 2",plain)- *          BLOCK-END- *          BLOCK-ENTRY- *          BLOCK-MAPPING-START- *          KEY- *          SCALAR("complex key")- *          VALUE- *          SCALAR("complex value")- *          BLOCK-END- *          BLOCK-END- *          STREAM-END- *- *      2. Collections in a mapping:- *- *          ? a sequence- *          : - item 1- *            - item 2- *          ? a mapping- *          : key 1: value 1- *            key 2: value 2- *- *      Tokens:- *- *          STREAM-START(utf-8)- *          BLOCK-MAPPING-START- *          KEY- *          SCALAR("a sequence",plain)- *          VALUE- *          BLOCK-SEQUENCE-START- *          BLOCK-ENTRY- *          SCALAR("item 1",plain)- *          BLOCK-ENTRY- *          SCALAR("item 2",plain)- *          BLOCK-END- *          KEY- *          SCALAR("a mapping",plain)- *          VALUE- *          BLOCK-MAPPING-START- *          KEY- *          SCALAR("key 1",plain)- *          VALUE- *          SCALAR("value 1",plain)- *          KEY- *          SCALAR("key 2",plain)- *          VALUE- *          SCALAR("value 2",plain)- *          BLOCK-END- *          BLOCK-END- *          STREAM-END- *- * YAML also permits non-indented sequences if they are included into a block- * mapping.  In this case, the token BLOCK-SEQUENCE-START is not produced:- *- *      key:- *      - item 1    # BLOCK-SEQUENCE-START is NOT produced here.- *      - item 2- *- * Tokens:- *- *      STREAM-START(utf-8)- *      BLOCK-MAPPING-START- *      KEY- *      SCALAR("key",plain)- *      VALUE- *      BLOCK-ENTRY- *      SCALAR("item 1",plain)- *      BLOCK-ENTRY- *      SCALAR("item 2",plain)- *      BLOCK-END- */--#include "yaml_private.h"--/*- * Ensure that the buffer contains the required number of characters.- * Return 1 on success, 0 on failure (reader error or memory error).- */--#define CACHE(parser,length)                                                    \-    (parser->unread >= (length)                                                 \-        ? 1                                                                     \-        : yaml_parser_update_buffer(parser, (length)))--/*- * Advance the buffer pointer.- */--#define SKIP(parser)                                                            \-     (parser->mark.index ++,                                                    \-      parser->mark.column ++,                                                   \-      parser->unread --,                                                        \-      parser->buffer.pointer += WIDTH(parser->buffer))--#define SKIP_LINE(parser)                                                       \-     (IS_CRLF(parser->buffer) ?                                                 \-      (parser->mark.index += 2,                                                 \-       parser->mark.column = 0,                                                 \-       parser->mark.line ++,                                                    \-       parser->unread -= 2,                                                     \-       parser->buffer.pointer += 2) :                                           \-      IS_BREAK(parser->buffer) ?                                                \-      (parser->mark.index ++,                                                   \-       parser->mark.column = 0,                                                 \-       parser->mark.line ++,                                                    \-       parser->unread --,                                                       \-       parser->buffer.pointer += WIDTH(parser->buffer)) : 0)--/*- * Copy a character to a string buffer and advance pointers.- */--#define READ(parser,string)                                                     \-     (STRING_EXTEND(parser,string) ?                                            \-         (COPY(string,parser->buffer),                                          \-          parser->mark.index ++,                                                \-          parser->mark.column ++,                                               \-          parser->unread --,                                                    \-          1) : 0)--/*- * Copy a line break character to a string buffer and advance pointers.- */--#define READ_LINE(parser,string)                                                \-    (STRING_EXTEND(parser,string) ?                                             \-    (((CHECK_AT(parser->buffer,'\r',0)                                          \-       && CHECK_AT(parser->buffer,'\n',1)) ?        /* CR LF -> LF */           \-     (*((string).pointer++) = (yaml_char_t) '\n',                               \-      parser->buffer.pointer += 2,                                              \-      parser->mark.index += 2,                                                  \-      parser->mark.column = 0,                                                  \-      parser->mark.line ++,                                                     \-      parser->unread -= 2) :                                                    \-     (CHECK_AT(parser->buffer,'\r',0)                                           \-      || CHECK_AT(parser->buffer,'\n',0)) ?         /* CR|LF -> LF */           \-     (*((string).pointer++) = (yaml_char_t) '\n',                               \-      parser->buffer.pointer ++,                                                \-      parser->mark.index ++,                                                    \-      parser->mark.column = 0,                                                  \-      parser->mark.line ++,                                                     \-      parser->unread --) :                                                      \-     (CHECK_AT(parser->buffer,'\xC2',0)                                         \-      && CHECK_AT(parser->buffer,'\x85',1)) ?       /* NEL -> LF */             \-     (*((string).pointer++) = (yaml_char_t) '\n',                               \-      parser->buffer.pointer += 2,                                              \-      parser->mark.index ++,                                                    \-      parser->mark.column = 0,                                                  \-      parser->mark.line ++,                                                     \-      parser->unread --) :                                                      \-     (CHECK_AT(parser->buffer,'\xE2',0) &&                                      \-      CHECK_AT(parser->buffer,'\x80',1) &&                                      \-      (CHECK_AT(parser->buffer,'\xA8',2) ||                                     \-       CHECK_AT(parser->buffer,'\xA9',2))) ?        /* LS|PS -> LS|PS */        \-     (*((string).pointer++) = *(parser->buffer.pointer++),                      \-      *((string).pointer++) = *(parser->buffer.pointer++),                      \-      *((string).pointer++) = *(parser->buffer.pointer++),                      \-      parser->mark.index ++,                                                    \-      parser->mark.column = 0,                                                  \-      parser->mark.line ++,                                                     \-      parser->unread --) : 0),                                                  \-    1) : 0)--/*- * Public API declarations.- */--YAML_DECLARE(int)-yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token);--/*- * Error handling.- */--static int-yaml_parser_set_scanner_error(yaml_parser_t *parser, const char *context,-        yaml_mark_t context_mark, const char *problem);--/*- * High-level token API.- */--YAML_DECLARE(int)-yaml_parser_fetch_more_tokens(yaml_parser_t *parser);--static int-yaml_parser_fetch_next_token(yaml_parser_t *parser);--/*- * Potential simple keys.- */--static int-yaml_parser_stale_simple_keys(yaml_parser_t *parser);--static int-yaml_parser_save_simple_key(yaml_parser_t *parser);--static int-yaml_parser_remove_simple_key(yaml_parser_t *parser);--static int-yaml_parser_increase_flow_level(yaml_parser_t *parser);--static int-yaml_parser_decrease_flow_level(yaml_parser_t *parser);--/*- * Indentation treatment.- */--static int-yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column,-        ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark);--static int-yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column);--/*- * Token fetchers.- */--static int-yaml_parser_fetch_stream_start(yaml_parser_t *parser);--static int-yaml_parser_fetch_stream_end(yaml_parser_t *parser);--static int-yaml_parser_fetch_directive(yaml_parser_t *parser);--static int-yaml_parser_fetch_document_indicator(yaml_parser_t *parser,-        yaml_token_type_t type);--static int-yaml_parser_fetch_flow_collection_start(yaml_parser_t *parser,-        yaml_token_type_t type);--static int-yaml_parser_fetch_flow_collection_end(yaml_parser_t *parser,-        yaml_token_type_t type);--static int-yaml_parser_fetch_flow_entry(yaml_parser_t *parser);--static int-yaml_parser_fetch_block_entry(yaml_parser_t *parser);--static int-yaml_parser_fetch_key(yaml_parser_t *parser);--static int-yaml_parser_fetch_value(yaml_parser_t *parser);--static int-yaml_parser_fetch_anchor(yaml_parser_t *parser, yaml_token_type_t type);--static int-yaml_parser_fetch_tag(yaml_parser_t *parser);--static int-yaml_parser_fetch_block_scalar(yaml_parser_t *parser, int literal);--static int-yaml_parser_fetch_flow_scalar(yaml_parser_t *parser, int single);--static int-yaml_parser_fetch_plain_scalar(yaml_parser_t *parser);--/*- * Token scanners.- */--static int-yaml_parser_scan_to_next_token(yaml_parser_t *parser);--static int-yaml_parser_scan_directive(yaml_parser_t *parser, yaml_token_t *token);--static int-yaml_parser_scan_directive_name(yaml_parser_t *parser,-        yaml_mark_t start_mark, yaml_char_t **name);--static int-yaml_parser_scan_version_directive_value(yaml_parser_t *parser,-        yaml_mark_t start_mark, int *major, int *minor);--static int-yaml_parser_scan_version_directive_number(yaml_parser_t *parser,-        yaml_mark_t start_mark, int *number);--static int-yaml_parser_scan_tag_directive_value(yaml_parser_t *parser,-        yaml_mark_t mark, yaml_char_t **handle, yaml_char_t **prefix);--static int-yaml_parser_scan_anchor(yaml_parser_t *parser, yaml_token_t *token,-        yaml_token_type_t type);--static int-yaml_parser_scan_tag(yaml_parser_t *parser, yaml_token_t *token);--static int-yaml_parser_scan_tag_handle(yaml_parser_t *parser, int directive,-        yaml_mark_t start_mark, yaml_char_t **handle);--static int-yaml_parser_scan_tag_uri(yaml_parser_t *parser, int directive,-        yaml_char_t *head, yaml_mark_t start_mark, yaml_char_t **uri);--static int-yaml_parser_scan_uri_escapes(yaml_parser_t *parser, int directive,-        yaml_mark_t start_mark, yaml_string_t *string);--static int-yaml_parser_scan_block_scalar(yaml_parser_t *parser, yaml_token_t *token,-        int literal);--static int-yaml_parser_scan_block_scalar_breaks(yaml_parser_t *parser,-        int *indent, yaml_string_t *breaks,-        yaml_mark_t start_mark, yaml_mark_t *end_mark);--static int-yaml_parser_scan_flow_scalar(yaml_parser_t *parser, yaml_token_t *token,-        int single);--static int-yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token);--/*- * Get the next token.- */--YAML_DECLARE(int)-yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token)-{-    assert(parser); /* Non-NULL parser object is expected. */-    assert(token);  /* Non-NULL token object is expected. */--    /* Erase the token object. */--    memset(token, 0, sizeof(yaml_token_t));--    /* No tokens after STREAM-END or error. */--    if (parser->stream_end_produced || parser->error) {-        return 1;-    }--    /* Ensure that the tokens queue contains enough tokens. */--    if (!parser->token_available) {-        if (!yaml_parser_fetch_more_tokens(parser))-            return 0;-    }--    /* Fetch the next token from the queue. */--    *token = DEQUEUE(parser, parser->tokens);-    parser->token_available = 0;-    parser->tokens_parsed ++;--    if (token->type == YAML_STREAM_END_TOKEN) {-        parser->stream_end_produced = 1;-    }--    return 1;-}--/*- * Set the scanner error and return 0.- */--static int-yaml_parser_set_scanner_error(yaml_parser_t *parser, const char *context,-        yaml_mark_t context_mark, const char *problem)-{-    parser->error = YAML_SCANNER_ERROR;-    parser->context = context;-    parser->context_mark = context_mark;-    parser->problem = problem;-    parser->problem_mark = parser->mark;--    return 0;-}--/*- * Ensure that the tokens queue contains at least one token which can be- * returned to the Parser.- */--YAML_DECLARE(int)-yaml_parser_fetch_more_tokens(yaml_parser_t *parser)-{-    int need_more_tokens;--    /* While we need more tokens to fetch, do it. */--    while (1)-    {-        /*-         * Check if we really need to fetch more tokens.-         */--        need_more_tokens = 0;--        if (parser->tokens.head == parser->tokens.tail)-        {-            /* Queue is empty. */--            need_more_tokens = 1;-        }-        else-        {-            yaml_simple_key_t *simple_key;--            /* Check if any potential simple key may occupy the head position. */--            if (!yaml_parser_stale_simple_keys(parser))-                return 0;--            for (simple_key = parser->simple_keys.start;-                    simple_key != parser->simple_keys.top; simple_key++) {-                if (simple_key->possible-                        && simple_key->token_number == parser->tokens_parsed) {-                    need_more_tokens = 1;-                    break;-                }-            }-        }--        /* We are finished. */--        if (!need_more_tokens)-            break;--        /* Fetch the next token. */--        if (!yaml_parser_fetch_next_token(parser))-            return 0;-    }--    parser->token_available = 1;--    return 1;-}--/*- * The dispatcher for token fetchers.- */--static int-yaml_parser_fetch_next_token(yaml_parser_t *parser)-{-    /* Ensure that the buffer is initialized. */--    if (!CACHE(parser, 1))-        return 0;--    /* Check if we just started scanning.  Fetch STREAM-START then. */--    if (!parser->stream_start_produced)-        return yaml_parser_fetch_stream_start(parser);--    /* Eat whitespaces and comments until we reach the next token. */--    if (!yaml_parser_scan_to_next_token(parser))-        return 0;--    /* Remove obsolete potential simple keys. */--    if (!yaml_parser_stale_simple_keys(parser))-        return 0;--    /* Check the indentation level against the current column. */--    if (!yaml_parser_unroll_indent(parser, parser->mark.column))-        return 0;--    /*-     * Ensure that the buffer contains at least 4 characters.  4 is the length-     * of the longest indicators ('--- ' and '... ').-     */--    if (!CACHE(parser, 4))-        return 0;--    /* Is it the end of the stream? */--    if (IS_Z(parser->buffer))-        return yaml_parser_fetch_stream_end(parser);--    /* Is it a directive? */--    if (parser->mark.column == 0 && CHECK(parser->buffer, '%'))-        return yaml_parser_fetch_directive(parser);--    /* Is it the document start indicator? */--    if (parser->mark.column == 0-            && CHECK_AT(parser->buffer, '-', 0)-            && CHECK_AT(parser->buffer, '-', 1)-            && CHECK_AT(parser->buffer, '-', 2)-            && IS_BLANKZ_AT(parser->buffer, 3))-        return yaml_parser_fetch_document_indicator(parser,-                YAML_DOCUMENT_START_TOKEN);--    /* Is it the document end indicator? */--    if (parser->mark.column == 0-            && CHECK_AT(parser->buffer, '.', 0)-            && CHECK_AT(parser->buffer, '.', 1)-            && CHECK_AT(parser->buffer, '.', 2)-            && IS_BLANKZ_AT(parser->buffer, 3))-        return yaml_parser_fetch_document_indicator(parser,-                YAML_DOCUMENT_END_TOKEN);--    /* Is it the flow sequence start indicator? */--    if (CHECK(parser->buffer, '['))-        return yaml_parser_fetch_flow_collection_start(parser,-                YAML_FLOW_SEQUENCE_START_TOKEN);--    /* Is it the flow mapping start indicator? */--    if (CHECK(parser->buffer, '{'))-        return yaml_parser_fetch_flow_collection_start(parser,-                YAML_FLOW_MAPPING_START_TOKEN);--    /* Is it the flow sequence end indicator? */--    if (CHECK(parser->buffer, ']'))-        return yaml_parser_fetch_flow_collection_end(parser,-                YAML_FLOW_SEQUENCE_END_TOKEN);--    /* Is it the flow mapping end indicator? */--    if (CHECK(parser->buffer, '}'))-        return yaml_parser_fetch_flow_collection_end(parser,-                YAML_FLOW_MAPPING_END_TOKEN);--    /* Is it the flow entry indicator? */--    if (CHECK(parser->buffer, ','))-        return yaml_parser_fetch_flow_entry(parser);--    /* Is it the block entry indicator? */--    if (CHECK(parser->buffer, '-') && IS_BLANKZ_AT(parser->buffer, 1))-        return yaml_parser_fetch_block_entry(parser);--    /* Is it the key indicator? */--    if (CHECK(parser->buffer, '?')-            && (parser->flow_level || IS_BLANKZ_AT(parser->buffer, 1)))-        return yaml_parser_fetch_key(parser);--    /* Is it the value indicator? */--    if (CHECK(parser->buffer, ':')-            && (parser->flow_level || IS_BLANKZ_AT(parser->buffer, 1)))-        return yaml_parser_fetch_value(parser);--    /* Is it an alias? */--    if (CHECK(parser->buffer, '*'))-        return yaml_parser_fetch_anchor(parser, YAML_ALIAS_TOKEN);--    /* Is it an anchor? */--    if (CHECK(parser->buffer, '&'))-        return yaml_parser_fetch_anchor(parser, YAML_ANCHOR_TOKEN);--    /* Is it a tag? */--    if (CHECK(parser->buffer, '!'))-        return yaml_parser_fetch_tag(parser);--    /* Is it a literal scalar? */--    if (CHECK(parser->buffer, '|') && !parser->flow_level)-        return yaml_parser_fetch_block_scalar(parser, 1);--    /* Is it a folded scalar? */--    if (CHECK(parser->buffer, '>') && !parser->flow_level)-        return yaml_parser_fetch_block_scalar(parser, 0);--    /* Is it a single-quoted scalar? */--    if (CHECK(parser->buffer, '\''))-        return yaml_parser_fetch_flow_scalar(parser, 1);--    /* Is it a double-quoted scalar? */--    if (CHECK(parser->buffer, '"'))-        return yaml_parser_fetch_flow_scalar(parser, 0);--    /*-     * Is it a plain scalar?-     *-     * A plain scalar may start with any non-blank characters except-     *-     *      '-', '?', ':', ',', '[', ']', '{', '}',-     *      '#', '&', '*', '!', '|', '>', '\'', '\"',-     *      '%', '@', '`'.-     *-     * In the block context (and, for the '-' indicator, in the flow context-     * too), it may also start with the characters-     *-     *      '-', '?', ':'-     *-     * if it is followed by a non-space character.-     *-     * The last rule is more restrictive than the specification requires.-     */--    if (!(IS_BLANKZ(parser->buffer) || CHECK(parser->buffer, '-')-                || CHECK(parser->buffer, '?') || CHECK(parser->buffer, ':')-                || CHECK(parser->buffer, ',') || CHECK(parser->buffer, '[')-                || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '{')-                || CHECK(parser->buffer, '}') || CHECK(parser->buffer, '#')-                || CHECK(parser->buffer, '&') || CHECK(parser->buffer, '*')-                || CHECK(parser->buffer, '!') || CHECK(parser->buffer, '|')-                || CHECK(parser->buffer, '>') || CHECK(parser->buffer, '\'')-                || CHECK(parser->buffer, '"') || CHECK(parser->buffer, '%')-                || CHECK(parser->buffer, '@') || CHECK(parser->buffer, '`')) ||-            (CHECK(parser->buffer, '-') && !IS_BLANK_AT(parser->buffer, 1)) ||-            (!parser->flow_level &&-             (CHECK(parser->buffer, '?') || CHECK(parser->buffer, ':'))-             && !IS_BLANKZ_AT(parser->buffer, 1)))-        return yaml_parser_fetch_plain_scalar(parser);--    /*-     * If we don't determine the token type so far, it is an error.-     */--    return yaml_parser_set_scanner_error(parser,-            "while scanning for the next token", parser->mark,-            "found character that cannot start any token");-}--/*- * Check the list of potential simple keys and remove the positions that- * cannot contain simple keys anymore.- */--static int-yaml_parser_stale_simple_keys(yaml_parser_t *parser)-{-    yaml_simple_key_t *simple_key;--    /* Check for a potential simple key for each flow level. */--    for (simple_key = parser->simple_keys.start;-            simple_key != parser->simple_keys.top; simple_key ++)-    {-        /*-         * The specification requires that a simple key-         *-         *  - is limited to a single line,-         *  - is shorter than 1024 characters.-         */--        if (simple_key->possible-                && (simple_key->mark.line < parser->mark.line-                    || simple_key->mark.index+1024 < parser->mark.index)) {--            /* Check if the potential simple key to be removed is required. */--            if (simple_key->required) {-                return yaml_parser_set_scanner_error(parser,-                        "while scanning a simple key", simple_key->mark,-                        "could not find expected ':'");-            }--            simple_key->possible = 0;-        }-    }--    return 1;-}--/*- * Check if a simple key may start at the current position and add it if- * needed.- */--static int-yaml_parser_save_simple_key(yaml_parser_t *parser)-{-    /*-     * A simple key is required at the current position if the scanner is in-     * the block context and the current column coincides with the indentation-     * level.-     */--    int required = (!parser->flow_level-            && parser->indent == (ptrdiff_t)parser->mark.column);--    /*-     * If the current position may start a simple key, save it.-     */--    if (parser->simple_key_allowed)-    {-        yaml_simple_key_t simple_key;-        simple_key.possible = 1;-        simple_key.required = required;-        simple_key.token_number =-            parser->tokens_parsed + (parser->tokens.tail - parser->tokens.head);-        simple_key.mark = parser->mark;--        if (!yaml_parser_remove_simple_key(parser)) return 0;--        *(parser->simple_keys.top-1) = simple_key;-    }--    return 1;-}--/*- * Remove a potential simple key at the current flow level.- */--static int-yaml_parser_remove_simple_key(yaml_parser_t *parser)-{-    yaml_simple_key_t *simple_key = parser->simple_keys.top-1;--    if (simple_key->possible)-    {-        /* If the key is required, it is an error. */--        if (simple_key->required) {-            return yaml_parser_set_scanner_error(parser,-                    "while scanning a simple key", simple_key->mark,-                    "could not find expected ':'");-        }-    }--    /* Remove the key from the stack. */--    simple_key->possible = 0;--    return 1;-}--/*- * Increase the flow level and resize the simple key list if needed.- */--static int-yaml_parser_increase_flow_level(yaml_parser_t *parser)-{-    yaml_simple_key_t empty_simple_key = { 0, 0, 0, { 0, 0, 0 } };--    /* Reset the simple key on the next level. */--    if (!PUSH(parser, parser->simple_keys, empty_simple_key))-        return 0;--    /* Increase the flow level. */--    if (parser->flow_level == INT_MAX) {-        parser->error = YAML_MEMORY_ERROR;-        return 0;-    }--    parser->flow_level++;--    return 1;-}--/*- * Decrease the flow level.- */--static int-yaml_parser_decrease_flow_level(yaml_parser_t *parser)-{-    if (parser->flow_level) {-        parser->flow_level --;-        (void)POP(parser, parser->simple_keys);-    }--    return 1;-}--/*- * Push the current indentation level to the stack and set the new level- * the current column is greater than the indentation level.  In this case,- * append or insert the specified token into the token queue.- *- */--static int-yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column,-        ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark)-{-    yaml_token_t token;--    /* In the flow context, do nothing. */--    if (parser->flow_level)-        return 1;--    if (parser->indent < column)-    {-        /*-         * Push the current indentation level to the stack and set the new-         * indentation level.-         */--        if (!PUSH(parser, parser->indents, parser->indent))-            return 0;--        if (column > INT_MAX) {-            parser->error = YAML_MEMORY_ERROR;-            return 0;-        }--        parser->indent = column;--        /* Create a token and insert it into the queue. */--        TOKEN_INIT(token, type, mark, mark);--        if (number == -1) {-            if (!ENQUEUE(parser, parser->tokens, token))-                return 0;-        }-        else {-            if (!QUEUE_INSERT(parser,-                        parser->tokens, number - parser->tokens_parsed, token))-                return 0;-        }-    }--    return 1;-}--/*- * Pop indentation levels from the indents stack until the current level- * becomes less or equal to the column.  For each indentation level, append- * the BLOCK-END token.- */---static int-yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column)-{-    yaml_token_t token;--    /* In the flow context, do nothing. */--    if (parser->flow_level)-        return 1;--    /* Loop through the indentation levels in the stack. */--    while (parser->indent > column)-    {-        /* Create a token and append it to the queue. */--        TOKEN_INIT(token, YAML_BLOCK_END_TOKEN, parser->mark, parser->mark);--        if (!ENQUEUE(parser, parser->tokens, token))-            return 0;--        /* Pop the indentation level. */--        parser->indent = POP(parser, parser->indents);-    }--    return 1;-}--/*- * Initialize the scanner and produce the STREAM-START token.- */--static int-yaml_parser_fetch_stream_start(yaml_parser_t *parser)-{-    yaml_simple_key_t simple_key = { 0, 0, 0, { 0, 0, 0 } };-    yaml_token_t token;--    /* Set the initial indentation. */--    parser->indent = -1;--    /* Initialize the simple key stack. */--    if (!PUSH(parser, parser->simple_keys, simple_key))-        return 0;--    /* A simple key is allowed at the beginning of the stream. */--    parser->simple_key_allowed = 1;--    /* We have started. */--    parser->stream_start_produced = 1;--    /* Create the STREAM-START token and append it to the queue. */--    STREAM_START_TOKEN_INIT(token, parser->encoding,-            parser->mark, parser->mark);--    if (!ENQUEUE(parser, parser->tokens, token))-        return 0;--    return 1;-}--/*- * Produce the STREAM-END token and shut down the scanner.- */--static int-yaml_parser_fetch_stream_end(yaml_parser_t *parser)-{-    yaml_token_t token;--    /* Force new line. */--    if (parser->mark.column != 0) {-        parser->mark.column = 0;-        parser->mark.line ++;-    }--    /* Reset the indentation level. */--    if (!yaml_parser_unroll_indent(parser, -1))-        return 0;--    /* Reset simple keys. */--    if (!yaml_parser_remove_simple_key(parser))-        return 0;--    parser->simple_key_allowed = 0;--    /* Create the STREAM-END token and append it to the queue. */--    STREAM_END_TOKEN_INIT(token, parser->mark, parser->mark);--    if (!ENQUEUE(parser, parser->tokens, token))-        return 0;--    return 1;-}--/*- * Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token.- */--static int-yaml_parser_fetch_directive(yaml_parser_t *parser)-{-    yaml_token_t token;--    /* Reset the indentation level. */--    if (!yaml_parser_unroll_indent(parser, -1))-        return 0;--    /* Reset simple keys. */--    if (!yaml_parser_remove_simple_key(parser))-        return 0;--    parser->simple_key_allowed = 0;--    /* Create the YAML-DIRECTIVE or TAG-DIRECTIVE token. */--    if (!yaml_parser_scan_directive(parser, &token))-        return 0;--    /* Append the token to the queue. */--    if (!ENQUEUE(parser, parser->tokens, token)) {-        yaml_token_delete(&token);-        return 0;-    }--    return 1;-}--/*- * Produce the DOCUMENT-START or DOCUMENT-END token.- */--static int-yaml_parser_fetch_document_indicator(yaml_parser_t *parser,-        yaml_token_type_t type)-{-    yaml_mark_t start_mark, end_mark;-    yaml_token_t token;--    /* Reset the indentation level. */--    if (!yaml_parser_unroll_indent(parser, -1))-        return 0;--    /* Reset simple keys. */--    if (!yaml_parser_remove_simple_key(parser))-        return 0;--    parser->simple_key_allowed = 0;--    /* Consume the token. */--    start_mark = parser->mark;--    SKIP(parser);-    SKIP(parser);-    SKIP(parser);--    end_mark = parser->mark;--    /* Create the DOCUMENT-START or DOCUMENT-END token. */--    TOKEN_INIT(token, type, start_mark, end_mark);--    /* Append the token to the queue. */--    if (!ENQUEUE(parser, parser->tokens, token))-        return 0;--    return 1;-}--/*- * Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token.- */--static int-yaml_parser_fetch_flow_collection_start(yaml_parser_t *parser,-        yaml_token_type_t type)-{-    yaml_mark_t start_mark, end_mark;-    yaml_token_t token;--    /* The indicators '[' and '{' may start a simple key. */--    if (!yaml_parser_save_simple_key(parser))-        return 0;--    /* Increase the flow level. */--    if (!yaml_parser_increase_flow_level(parser))-        return 0;--    /* A simple key may follow the indicators '[' and '{'. */--    parser->simple_key_allowed = 1;--    /* Consume the token. */--    start_mark = parser->mark;-    SKIP(parser);-    end_mark = parser->mark;--    /* Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token. */--    TOKEN_INIT(token, type, start_mark, end_mark);--    /* Append the token to the queue. */--    if (!ENQUEUE(parser, parser->tokens, token))-        return 0;--    return 1;-}--/*- * Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token.- */--static int-yaml_parser_fetch_flow_collection_end(yaml_parser_t *parser,-        yaml_token_type_t type)-{-    yaml_mark_t start_mark, end_mark;-    yaml_token_t token;--    /* Reset any potential simple key on the current flow level. */--    if (!yaml_parser_remove_simple_key(parser))-        return 0;--    /* Decrease the flow level. */--    if (!yaml_parser_decrease_flow_level(parser))-        return 0;--    /* No simple keys after the indicators ']' and '}'. */--    parser->simple_key_allowed = 0;--    /* Consume the token. */--    start_mark = parser->mark;-    SKIP(parser);-    end_mark = parser->mark;--    /* Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token. */--    TOKEN_INIT(token, type, start_mark, end_mark);--    /* Append the token to the queue. */--    if (!ENQUEUE(parser, parser->tokens, token))-        return 0;--    return 1;-}--/*- * Produce the FLOW-ENTRY token.- */--static int-yaml_parser_fetch_flow_entry(yaml_parser_t *parser)-{-    yaml_mark_t start_mark, end_mark;-    yaml_token_t token;--    /* Reset any potential simple keys on the current flow level. */--    if (!yaml_parser_remove_simple_key(parser))-        return 0;--    /* Simple keys are allowed after ','. */--    parser->simple_key_allowed = 1;--    /* Consume the token. */--    start_mark = parser->mark;-    SKIP(parser);-    end_mark = parser->mark;--    /* Create the FLOW-ENTRY token and append it to the queue. */--    TOKEN_INIT(token, YAML_FLOW_ENTRY_TOKEN, start_mark, end_mark);--    if (!ENQUEUE(parser, parser->tokens, token))-        return 0;--    return 1;-}--/*- * Produce the BLOCK-ENTRY token.- */--static int-yaml_parser_fetch_block_entry(yaml_parser_t *parser)-{-    yaml_mark_t start_mark, end_mark;-    yaml_token_t token;--    /* Check if the scanner is in the block context. */--    if (!parser->flow_level)-    {-        /* Check if we are allowed to start a new entry. */--        if (!parser->simple_key_allowed) {-            return yaml_parser_set_scanner_error(parser, NULL, parser->mark,-                    "block sequence entries are not allowed in this context");-        }--        /* Add the BLOCK-SEQUENCE-START token if needed. */--        if (!yaml_parser_roll_indent(parser, parser->mark.column, -1,-                    YAML_BLOCK_SEQUENCE_START_TOKEN, parser->mark))-            return 0;-    }-    else-    {-        /*-         * It is an error for the '-' indicator to occur in the flow context,-         * but we let the Parser detect and report about it because the Parser-         * is able to point to the context.-         */-    }--    /* Reset any potential simple keys on the current flow level. */--    if (!yaml_parser_remove_simple_key(parser))-        return 0;--    /* Simple keys are allowed after '-'. */--    parser->simple_key_allowed = 1;--    /* Consume the token. */--    start_mark = parser->mark;-    SKIP(parser);-    end_mark = parser->mark;--    /* Create the BLOCK-ENTRY token and append it to the queue. */--    TOKEN_INIT(token, YAML_BLOCK_ENTRY_TOKEN, start_mark, end_mark);--    if (!ENQUEUE(parser, parser->tokens, token))-        return 0;--    return 1;-}--/*- * Produce the KEY token.- */--static int-yaml_parser_fetch_key(yaml_parser_t *parser)-{-    yaml_mark_t start_mark, end_mark;-    yaml_token_t token;--    /* In the block context, additional checks are required. */--    if (!parser->flow_level)-    {-        /* Check if we are allowed to start a new key (not nessesary simple). */--        if (!parser->simple_key_allowed) {-            return yaml_parser_set_scanner_error(parser, NULL, parser->mark,-                    "mapping keys are not allowed in this context");-        }--        /* Add the BLOCK-MAPPING-START token if needed. */--        if (!yaml_parser_roll_indent(parser, parser->mark.column, -1,-                    YAML_BLOCK_MAPPING_START_TOKEN, parser->mark))-            return 0;-    }--    /* Reset any potential simple keys on the current flow level. */--    if (!yaml_parser_remove_simple_key(parser))-        return 0;--    /* Simple keys are allowed after '?' in the block context. */--    parser->simple_key_allowed = (!parser->flow_level);--    /* Consume the token. */--    start_mark = parser->mark;-    SKIP(parser);-    end_mark = parser->mark;--    /* Create the KEY token and append it to the queue. */--    TOKEN_INIT(token, YAML_KEY_TOKEN, start_mark, end_mark);--    if (!ENQUEUE(parser, parser->tokens, token))-        return 0;--    return 1;-}--/*- * Produce the VALUE token.- */--static int-yaml_parser_fetch_value(yaml_parser_t *parser)-{-    yaml_mark_t start_mark, end_mark;-    yaml_token_t token;-    yaml_simple_key_t *simple_key = parser->simple_keys.top-1;--    /* Have we found a simple key? */--    if (simple_key->possible)-    {--        /* Create the KEY token and insert it into the queue. */--        TOKEN_INIT(token, YAML_KEY_TOKEN, simple_key->mark, simple_key->mark);--        if (!QUEUE_INSERT(parser, parser->tokens,-                    simple_key->token_number - parser->tokens_parsed, token))-            return 0;--        /* In the block context, we may need to add the BLOCK-MAPPING-START token. */--        if (!yaml_parser_roll_indent(parser, simple_key->mark.column,-                    simple_key->token_number,-                    YAML_BLOCK_MAPPING_START_TOKEN, simple_key->mark))-            return 0;--        /* Remove the simple key. */--        simple_key->possible = 0;--        /* A simple key cannot follow another simple key. */--        parser->simple_key_allowed = 0;-    }-    else-    {-        /* The ':' indicator follows a complex key. */--        /* In the block context, extra checks are required. */--        if (!parser->flow_level)-        {-            /* Check if we are allowed to start a complex value. */--            if (!parser->simple_key_allowed) {-                return yaml_parser_set_scanner_error(parser, NULL, parser->mark,-                        "mapping values are not allowed in this context");-            }--            /* Add the BLOCK-MAPPING-START token if needed. */--            if (!yaml_parser_roll_indent(parser, parser->mark.column, -1,-                        YAML_BLOCK_MAPPING_START_TOKEN, parser->mark))-                return 0;-        }--        /* Simple keys after ':' are allowed in the block context. */--        parser->simple_key_allowed = (!parser->flow_level);-    }--    /* Consume the token. */--    start_mark = parser->mark;-    SKIP(parser);-    end_mark = parser->mark;--    /* Create the VALUE token and append it to the queue. */--    TOKEN_INIT(token, YAML_VALUE_TOKEN, start_mark, end_mark);--    if (!ENQUEUE(parser, parser->tokens, token))-        return 0;--    return 1;-}--/*- * Produce the ALIAS or ANCHOR token.- */--static int-yaml_parser_fetch_anchor(yaml_parser_t *parser, yaml_token_type_t type)-{-    yaml_token_t token;--    /* An anchor or an alias could be a simple key. */--    if (!yaml_parser_save_simple_key(parser))-        return 0;--    /* A simple key cannot follow an anchor or an alias. */--    parser->simple_key_allowed = 0;--    /* Create the ALIAS or ANCHOR token and append it to the queue. */--    if (!yaml_parser_scan_anchor(parser, &token, type))-        return 0;--    if (!ENQUEUE(parser, parser->tokens, token)) {-        yaml_token_delete(&token);-        return 0;-    }-    return 1;-}--/*- * Produce the TAG token.- */--static int-yaml_parser_fetch_tag(yaml_parser_t *parser)-{-    yaml_token_t token;--    /* A tag could be a simple key. */--    if (!yaml_parser_save_simple_key(parser))-        return 0;--    /* A simple key cannot follow a tag. */--    parser->simple_key_allowed = 0;--    /* Create the TAG token and append it to the queue. */--    if (!yaml_parser_scan_tag(parser, &token))-        return 0;--    if (!ENQUEUE(parser, parser->tokens, token)) {-        yaml_token_delete(&token);-        return 0;-    }--    return 1;-}--/*- * Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens.- */--static int-yaml_parser_fetch_block_scalar(yaml_parser_t *parser, int literal)-{-    yaml_token_t token;--    /* Remove any potential simple keys. */--    if (!yaml_parser_remove_simple_key(parser))-        return 0;--    /* A simple key may follow a block scalar. */--    parser->simple_key_allowed = 1;--    /* Create the SCALAR token and append it to the queue. */--    if (!yaml_parser_scan_block_scalar(parser, &token, literal))-        return 0;--    if (!ENQUEUE(parser, parser->tokens, token)) {-        yaml_token_delete(&token);-        return 0;-    }--    return 1;-}--/*- * Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens.- */--static int-yaml_parser_fetch_flow_scalar(yaml_parser_t *parser, int single)-{-    yaml_token_t token;--    /* A plain scalar could be a simple key. */--    if (!yaml_parser_save_simple_key(parser))-        return 0;--    /* A simple key cannot follow a flow scalar. */--    parser->simple_key_allowed = 0;--    /* Create the SCALAR token and append it to the queue. */--    if (!yaml_parser_scan_flow_scalar(parser, &token, single))-        return 0;--    if (!ENQUEUE(parser, parser->tokens, token)) {-        yaml_token_delete(&token);-        return 0;-    }--    return 1;-}--/*- * Produce the SCALAR(...,plain) token.- */--static int-yaml_parser_fetch_plain_scalar(yaml_parser_t *parser)-{-    yaml_token_t token;--    /* A plain scalar could be a simple key. */--    if (!yaml_parser_save_simple_key(parser))-        return 0;--    /* A simple key cannot follow a flow scalar. */--    parser->simple_key_allowed = 0;--    /* Create the SCALAR token and append it to the queue. */--    if (!yaml_parser_scan_plain_scalar(parser, &token))-        return 0;--    if (!ENQUEUE(parser, parser->tokens, token)) {-        yaml_token_delete(&token);-        return 0;-    }--    return 1;-}--/*- * Eat whitespaces and comments until the next token is found.- */--static int-yaml_parser_scan_to_next_token(yaml_parser_t *parser)-{-    /* Until the next token is not found. */--    while (1)-    {-        /* Allow the BOM mark to start a line. */--        if (!CACHE(parser, 1)) return 0;--        if (parser->mark.column == 0 && IS_BOM(parser->buffer))-            SKIP(parser);--        /*-         * Eat whitespaces.-         *-         * Tabs are allowed:-         *-         *  - in the flow context;-         *  - in the block context, but not at the beginning of the line or-         *  after '-', '?', or ':' (complex value).-         */--        if (!CACHE(parser, 1)) return 0;--        while (CHECK(parser->buffer,' ') ||-                ((parser->flow_level || !parser->simple_key_allowed) &&-                 CHECK(parser->buffer, '\t'))) {-            SKIP(parser);-            if (!CACHE(parser, 1)) return 0;-        }--        /* Eat a comment until a line break. */--        if (CHECK(parser->buffer, '#')) {-            while (!IS_BREAKZ(parser->buffer)) {-                SKIP(parser);-                if (!CACHE(parser, 1)) return 0;-            }-        }--        /* If it is a line break, eat it. */--        if (IS_BREAK(parser->buffer))-        {-            if (!CACHE(parser, 2)) return 0;-            SKIP_LINE(parser);--            /* In the block context, a new line may start a simple key. */--            if (!parser->flow_level) {-                parser->simple_key_allowed = 1;-            }-        }-        else-        {-            /* We have found a token. */--            break;-        }-    }--    return 1;-}--/*- * Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token.- *- * Scope:- *      %YAML    1.1    # a comment \n- *      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- *      %TAG    !yaml!  tag:yaml.org,2002:  \n- *      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- */--int-yaml_parser_scan_directive(yaml_parser_t *parser, yaml_token_t *token)-{-    yaml_mark_t start_mark, end_mark;-    yaml_char_t *name = NULL;-    int major, minor;-    yaml_char_t *handle = NULL, *prefix = NULL;--    /* Eat '%'. */--    start_mark = parser->mark;--    SKIP(parser);--    /* Scan the directive name. */--    if (!yaml_parser_scan_directive_name(parser, start_mark, &name))-        goto error;--    /* Is it a YAML directive? */--    if (strcmp((char *)name, "YAML") == 0)-    {-        /* Scan the VERSION directive value. */--        if (!yaml_parser_scan_version_directive_value(parser, start_mark,-                    &major, &minor))-            goto error;--        end_mark = parser->mark;--        /* Create a VERSION-DIRECTIVE token. */--        VERSION_DIRECTIVE_TOKEN_INIT(*token, major, minor,-                start_mark, end_mark);-    }--    /* Is it a TAG directive? */--    else if (strcmp((char *)name, "TAG") == 0)-    {-        /* Scan the TAG directive value. */--        if (!yaml_parser_scan_tag_directive_value(parser, start_mark,-                    &handle, &prefix))-            goto error;--        end_mark = parser->mark;--        /* Create a TAG-DIRECTIVE token. */--        TAG_DIRECTIVE_TOKEN_INIT(*token, handle, prefix,-                start_mark, end_mark);-    }--    /* Unknown directive. */--    else-    {-        yaml_parser_set_scanner_error(parser, "while scanning a directive",-                start_mark, "found unknown directive name");-        goto error;-    }--    /* Eat the rest of the line including any comments. */--    if (!CACHE(parser, 1)) goto error;--    while (IS_BLANK(parser->buffer)) {-        SKIP(parser);-        if (!CACHE(parser, 1)) goto error;-    }--    if (CHECK(parser->buffer, '#')) {-        while (!IS_BREAKZ(parser->buffer)) {-            SKIP(parser);-            if (!CACHE(parser, 1)) goto error;-        }-    }--    /* Check if we are at the end of the line. */--    if (!IS_BREAKZ(parser->buffer)) {-        yaml_parser_set_scanner_error(parser, "while scanning a directive",-                start_mark, "did not find expected comment or line break");-        goto error;-    }--    /* Eat a line break. */--    if (IS_BREAK(parser->buffer)) {-        if (!CACHE(parser, 2)) goto error;-        SKIP_LINE(parser);-    }--    yaml_free(name);--    return 1;--error:-    yaml_free(prefix);-    yaml_free(handle);-    yaml_free(name);-    return 0;-}--/*- * Scan the directive name.- *- * Scope:- *      %YAML   1.1     # a comment \n- *       ^^^^- *      %TAG    !yaml!  tag:yaml.org,2002:  \n- *       ^^^- */--static int-yaml_parser_scan_directive_name(yaml_parser_t *parser,-        yaml_mark_t start_mark, yaml_char_t **name)-{-    yaml_string_t string = NULL_STRING;--    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;--    /* Consume the directive name. */--    if (!CACHE(parser, 1)) goto error;--    while (IS_ALPHA(parser->buffer))-    {-        if (!READ(parser, string)) goto error;-        if (!CACHE(parser, 1)) goto error;-    }--    /* Check if the name is empty. */--    if (string.start == string.pointer) {-        yaml_parser_set_scanner_error(parser, "while scanning a directive",-                start_mark, "could not find expected directive name");-        goto error;-    }--    /* Check for an blank character after the name. */--    if (!IS_BLANKZ(parser->buffer)) {-        yaml_parser_set_scanner_error(parser, "while scanning a directive",-                start_mark, "found unexpected non-alphabetical character");-        goto error;-    }--    *name = string.start;--    return 1;--error:-    STRING_DEL(parser, string);-    return 0;-}--/*- * Scan the value of VERSION-DIRECTIVE.- *- * Scope:- *      %YAML   1.1     # a comment \n- *           ^^^^^^- */--static int-yaml_parser_scan_version_directive_value(yaml_parser_t *parser,-        yaml_mark_t start_mark, int *major, int *minor)-{-    /* Eat whitespaces. */--    if (!CACHE(parser, 1)) return 0;--    while (IS_BLANK(parser->buffer)) {-        SKIP(parser);-        if (!CACHE(parser, 1)) return 0;-    }--    /* Consume the major version number. */--    if (!yaml_parser_scan_version_directive_number(parser, start_mark, major))-        return 0;--    /* Eat '.'. */--    if (!CHECK(parser->buffer, '.')) {-        return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",-                start_mark, "did not find expected digit or '.' character");-    }--    SKIP(parser);--    /* Consume the minor version number. */--    if (!yaml_parser_scan_version_directive_number(parser, start_mark, minor))-        return 0;--    return 1;-}--#define MAX_NUMBER_LENGTH   9--/*- * Scan the version number of VERSION-DIRECTIVE.- *- * Scope:- *      %YAML   1.1     # a comment \n- *              ^- *      %YAML   1.1     # a comment \n- *                ^- */--static int-yaml_parser_scan_version_directive_number(yaml_parser_t *parser,-        yaml_mark_t start_mark, int *number)-{-    int value = 0;-    size_t length = 0;--    /* Repeat while the next character is digit. */--    if (!CACHE(parser, 1)) return 0;--    while (IS_DIGIT(parser->buffer))-    {-        /* Check if the number is too long. */--        if (++length > MAX_NUMBER_LENGTH) {-            return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",-                    start_mark, "found extremely long version number");-        }--        value = value*10 + AS_DIGIT(parser->buffer);--        SKIP(parser);--        if (!CACHE(parser, 1)) return 0;-    }--    /* Check if the number was present. */--    if (!length) {-        return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",-                start_mark, "did not find expected version number");-    }--    *number = value;--    return 1;-}--/*- * Scan the value of a TAG-DIRECTIVE token.- *- * Scope:- *      %TAG    !yaml!  tag:yaml.org,2002:  \n- *          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- */--static int-yaml_parser_scan_tag_directive_value(yaml_parser_t *parser,-        yaml_mark_t start_mark, yaml_char_t **handle, yaml_char_t **prefix)-{-    yaml_char_t *handle_value = NULL;-    yaml_char_t *prefix_value = NULL;--    /* Eat whitespaces. */--    if (!CACHE(parser, 1)) goto error;--    while (IS_BLANK(parser->buffer)) {-        SKIP(parser);-        if (!CACHE(parser, 1)) goto error;-    }--    /* Scan a handle. */--    if (!yaml_parser_scan_tag_handle(parser, 1, start_mark, &handle_value))-        goto error;--    /* Expect a whitespace. */--    if (!CACHE(parser, 1)) goto error;--    if (!IS_BLANK(parser->buffer)) {-        yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",-                start_mark, "did not find expected whitespace");-        goto error;-    }--    /* Eat whitespaces. */--    while (IS_BLANK(parser->buffer)) {-        SKIP(parser);-        if (!CACHE(parser, 1)) goto error;-    }--    /* Scan a prefix. */--    if (!yaml_parser_scan_tag_uri(parser, 1, NULL, start_mark, &prefix_value))-        goto error;--    /* Expect a whitespace or line break. */--    if (!CACHE(parser, 1)) goto error;--    if (!IS_BLANKZ(parser->buffer)) {-        yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",-                start_mark, "did not find expected whitespace or line break");-        goto error;-    }--    *handle = handle_value;-    *prefix = prefix_value;--    return 1;--error:-    yaml_free(handle_value);-    yaml_free(prefix_value);-    return 0;-}--static int-yaml_parser_scan_anchor(yaml_parser_t *parser, yaml_token_t *token,-        yaml_token_type_t type)-{-    int length = 0;-    yaml_mark_t start_mark, end_mark;-    yaml_string_t string = NULL_STRING;--    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;--    /* Eat the indicator character. */--    start_mark = parser->mark;--    SKIP(parser);--    /* Consume the value. */--    if (!CACHE(parser, 1)) goto error;--    while (IS_ALPHA(parser->buffer)) {-        if (!READ(parser, string)) goto error;-        if (!CACHE(parser, 1)) goto error;-        length ++;-    }--    end_mark = parser->mark;--    /*-     * Check if length of the anchor is greater than 0 and it is followed by-     * a whitespace character or one of the indicators:-     *-     *      '?', ':', ',', ']', '}', '%', '@', '`'.-     */--    if (!length || !(IS_BLANKZ(parser->buffer) || CHECK(parser->buffer, '?')-                || CHECK(parser->buffer, ':') || CHECK(parser->buffer, ',')-                || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '}')-                || CHECK(parser->buffer, '%') || CHECK(parser->buffer, '@')-                || CHECK(parser->buffer, '`'))) {-        yaml_parser_set_scanner_error(parser, type == YAML_ANCHOR_TOKEN ?-                "while scanning an anchor" : "while scanning an alias", start_mark,-                "did not find expected alphabetic or numeric character");-        goto error;-    }--    /* Create a token. */--    if (type == YAML_ANCHOR_TOKEN) {-        ANCHOR_TOKEN_INIT(*token, string.start, start_mark, end_mark);-    }-    else {-        ALIAS_TOKEN_INIT(*token, string.start, start_mark, end_mark);-    }--    return 1;--error:-    STRING_DEL(parser, string);-    return 0;-}--/*- * Scan a TAG token.- */--static int-yaml_parser_scan_tag(yaml_parser_t *parser, yaml_token_t *token)-{-    yaml_char_t *handle = NULL;-    yaml_char_t *suffix = NULL;-    yaml_mark_t start_mark, end_mark;--    start_mark = parser->mark;--    /* Check if the tag is in the canonical form. */--    if (!CACHE(parser, 2)) goto error;--    if (CHECK_AT(parser->buffer, '<', 1))-    {-        /* Set the handle to '' */--        handle = YAML_MALLOC(1);-        if (!handle) goto error;-        handle[0] = '\0';--        /* Eat '!<' */--        SKIP(parser);-        SKIP(parser);--        /* Consume the tag value. */--        if (!yaml_parser_scan_tag_uri(parser, 0, NULL, start_mark, &suffix))-            goto error;--        /* Check for '>' and eat it. */--        if (!CHECK(parser->buffer, '>')) {-            yaml_parser_set_scanner_error(parser, "while scanning a tag",-                    start_mark, "did not find the expected '>'");-            goto error;-        }--        SKIP(parser);-    }-    else-    {-        /* The tag has either the '!suffix' or the '!handle!suffix' form. */--        /* First, try to scan a handle. */--        if (!yaml_parser_scan_tag_handle(parser, 0, start_mark, &handle))-            goto error;--        /* Check if it is, indeed, handle. */--        if (handle[0] == '!' && handle[1] != '\0' && handle[strlen((char *)handle)-1] == '!')-        {-            /* Scan the suffix now. */--            if (!yaml_parser_scan_tag_uri(parser, 0, NULL, start_mark, &suffix))-                goto error;-        }-        else-        {-            /* It wasn't a handle after all.  Scan the rest of the tag. */--            if (!yaml_parser_scan_tag_uri(parser, 0, handle, start_mark, &suffix))-                goto error;--            /* Set the handle to '!'. */--            yaml_free(handle);-            handle = YAML_MALLOC(2);-            if (!handle) goto error;-            handle[0] = '!';-            handle[1] = '\0';--            /*-             * A special case: the '!' tag.  Set the handle to '' and the-             * suffix to '!'.-             */--            if (suffix[0] == '\0') {-                yaml_char_t *tmp = handle;-                handle = suffix;-                suffix = tmp;-            }-        }-    }--    /* Check the character which ends the tag. */--    if (!CACHE(parser, 1)) goto error;--    if (!IS_BLANKZ(parser->buffer)) {-        yaml_parser_set_scanner_error(parser, "while scanning a tag",-                start_mark, "did not find expected whitespace or line break");-        goto error;-    }--    end_mark = parser->mark;--    /* Create a token. */--    TAG_TOKEN_INIT(*token, handle, suffix, start_mark, end_mark);--    return 1;--error:-    yaml_free(handle);-    yaml_free(suffix);-    return 0;-}--/*- * Scan a tag handle.- */--static int-yaml_parser_scan_tag_handle(yaml_parser_t *parser, int directive,-        yaml_mark_t start_mark, yaml_char_t **handle)-{-    yaml_string_t string = NULL_STRING;--    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;--    /* Check the initial '!' character. */--    if (!CACHE(parser, 1)) goto error;--    if (!CHECK(parser->buffer, '!')) {-        yaml_parser_set_scanner_error(parser, directive ?-                "while scanning a tag directive" : "while scanning a tag",-                start_mark, "did not find expected '!'");-        goto error;-    }--    /* Copy the '!' character. */--    if (!READ(parser, string)) goto error;--    /* Copy all subsequent alphabetical and numerical characters. */--    if (!CACHE(parser, 1)) goto error;--    while (IS_ALPHA(parser->buffer))-    {-        if (!READ(parser, string)) goto error;-        if (!CACHE(parser, 1)) goto error;-    }--    /* Check if the trailing character is '!' and copy it. */--    if (CHECK(parser->buffer, '!'))-    {-        if (!READ(parser, string)) goto error;-    }-    else-    {-        /*-         * It's either the '!' tag or not really a tag handle.  If it's a %TAG-         * directive, it's an error.  If it's a tag token, it must be a part of-         * URI.-         */--        if (directive && !(string.start[0] == '!' && string.start[1] == '\0')) {-            yaml_parser_set_scanner_error(parser, "while parsing a tag directive",-                    start_mark, "did not find expected '!'");-            goto error;-        }-    }--    *handle = string.start;--    return 1;--error:-    STRING_DEL(parser, string);-    return 0;-}--/*- * Scan a tag.- */--static int-yaml_parser_scan_tag_uri(yaml_parser_t *parser, int directive,-        yaml_char_t *head, yaml_mark_t start_mark, yaml_char_t **uri)-{-    size_t length = head ? strlen((char *)head) : 0;-    yaml_string_t string = NULL_STRING;--    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;--    /* Resize the string to include the head. */--    while ((size_t)(string.end - string.start) <= length) {-        if (!yaml_string_extend(&string.start, &string.pointer, &string.end)) {-            parser->error = YAML_MEMORY_ERROR;-            goto error;-        }-    }--    /*-     * Copy the head if needed.-     *-     * Note that we don't copy the leading '!' character.-     */--    if (length > 1) {-        memcpy(string.start, head+1, length-1);-        string.pointer += length-1;-    }--    /* Scan the tag. */--    if (!CACHE(parser, 1)) goto error;--    /*-     * The set of characters that may appear in URI is as follows:-     *-     *      '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&',-     *      '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']',-     *      '%'.-     */--    while (IS_ALPHA(parser->buffer) || CHECK(parser->buffer, ';')-            || CHECK(parser->buffer, '/') || CHECK(parser->buffer, '?')-            || CHECK(parser->buffer, ':') || CHECK(parser->buffer, '@')-            || CHECK(parser->buffer, '&') || CHECK(parser->buffer, '=')-            || CHECK(parser->buffer, '+') || CHECK(parser->buffer, '$')-            || CHECK(parser->buffer, ',') || CHECK(parser->buffer, '.')-            || CHECK(parser->buffer, '!') || CHECK(parser->buffer, '~')-            || CHECK(parser->buffer, '*') || CHECK(parser->buffer, '\'')-            || CHECK(parser->buffer, '(') || CHECK(parser->buffer, ')')-            || CHECK(parser->buffer, '[') || CHECK(parser->buffer, ']')-            || CHECK(parser->buffer, '%'))-    {-        /* Check if it is a URI-escape sequence. */--        if (CHECK(parser->buffer, '%')) {-            if (!STRING_EXTEND(parser, string))-                goto error;--            if (!yaml_parser_scan_uri_escapes(parser,-                        directive, start_mark, &string)) goto error;-        }-        else {-            if (!READ(parser, string)) goto error;-        }--        length ++;-        if (!CACHE(parser, 1)) goto error;-    }--    /* Check if the tag is non-empty. */--    if (!length) {-        if (!STRING_EXTEND(parser, string))-            goto error;--        yaml_parser_set_scanner_error(parser, directive ?-                "while parsing a %TAG directive" : "while parsing a tag",-                start_mark, "did not find expected tag URI");-        goto error;-    }--    *uri = string.start;--    return 1;--error:-    STRING_DEL(parser, string);-    return 0;-}--/*- * Decode an URI-escape sequence corresponding to a single UTF-8 character.- */--static int-yaml_parser_scan_uri_escapes(yaml_parser_t *parser, int directive,-        yaml_mark_t start_mark, yaml_string_t *string)-{-    int width = 0;--    /* Decode the required number of characters. */--    do {--        unsigned char octet = 0;--        /* Check for a URI-escaped octet. */--        if (!CACHE(parser, 3)) return 0;--        if (!(CHECK(parser->buffer, '%')-                    && IS_HEX_AT(parser->buffer, 1)-                    && IS_HEX_AT(parser->buffer, 2))) {-            return yaml_parser_set_scanner_error(parser, directive ?-                    "while parsing a %TAG directive" : "while parsing a tag",-                    start_mark, "did not find URI escaped octet");-        }--        /* Get the octet. */--        octet = (AS_HEX_AT(parser->buffer, 1) << 4) + AS_HEX_AT(parser->buffer, 2);--        /* If it is the leading octet, determine the length of the UTF-8 sequence. */--        if (!width)-        {-            width = (octet & 0x80) == 0x00 ? 1 :-                    (octet & 0xE0) == 0xC0 ? 2 :-                    (octet & 0xF0) == 0xE0 ? 3 :-                    (octet & 0xF8) == 0xF0 ? 4 : 0;-            if (!width) {-                return yaml_parser_set_scanner_error(parser, directive ?-                        "while parsing a %TAG directive" : "while parsing a tag",-                        start_mark, "found an incorrect leading UTF-8 octet");-            }-        }-        else-        {-            /* Check if the trailing octet is correct. */--            if ((octet & 0xC0) != 0x80) {-                return yaml_parser_set_scanner_error(parser, directive ?-                        "while parsing a %TAG directive" : "while parsing a tag",-                        start_mark, "found an incorrect trailing UTF-8 octet");-            }-        }--        /* Copy the octet and move the pointers. */--        *(string->pointer++) = octet;-        SKIP(parser);-        SKIP(parser);-        SKIP(parser);--    } while (--width);--    return 1;-}--/*- * Scan a block scalar.- */--static int-yaml_parser_scan_block_scalar(yaml_parser_t *parser, yaml_token_t *token,-        int literal)-{-    yaml_mark_t start_mark;-    yaml_mark_t end_mark;-    yaml_string_t string = NULL_STRING;-    yaml_string_t leading_break = NULL_STRING;-    yaml_string_t trailing_breaks = NULL_STRING;-    int chomping = 0;-    int increment = 0;-    int indent = 0;-    int leading_blank = 0;-    int trailing_blank = 0;--    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;-    if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error;-    if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error;--    /* Eat the indicator '|' or '>'. */--    start_mark = parser->mark;--    SKIP(parser);--    /* Scan the additional block scalar indicators. */--    if (!CACHE(parser, 1)) goto error;--    /* Check for a chomping indicator. */--    if (CHECK(parser->buffer, '+') || CHECK(parser->buffer, '-'))-    {-        /* Set the chomping method and eat the indicator. */--        chomping = CHECK(parser->buffer, '+') ? +1 : -1;--        SKIP(parser);--        /* Check for an indentation indicator. */--        if (!CACHE(parser, 1)) goto error;--        if (IS_DIGIT(parser->buffer))-        {-            /* Check that the indentation is greater than 0. */--            if (CHECK(parser->buffer, '0')) {-                yaml_parser_set_scanner_error(parser, "while scanning a block scalar",-                        start_mark, "found an indentation indicator equal to 0");-                goto error;-            }--            /* Get the indentation level and eat the indicator. */--            increment = AS_DIGIT(parser->buffer);--            SKIP(parser);-        }-    }--    /* Do the same as above, but in the opposite order. */--    else if (IS_DIGIT(parser->buffer))-    {-        if (CHECK(parser->buffer, '0')) {-            yaml_parser_set_scanner_error(parser, "while scanning a block scalar",-                    start_mark, "found an indentation indicator equal to 0");-            goto error;-        }--        increment = AS_DIGIT(parser->buffer);--        SKIP(parser);--        if (!CACHE(parser, 1)) goto error;--        if (CHECK(parser->buffer, '+') || CHECK(parser->buffer, '-')) {-            chomping = CHECK(parser->buffer, '+') ? +1 : -1;--            SKIP(parser);-        }-    }--    /* Eat whitespaces and comments to the end of the line. */--    if (!CACHE(parser, 1)) goto error;--    while (IS_BLANK(parser->buffer)) {-        SKIP(parser);-        if (!CACHE(parser, 1)) goto error;-    }--    if (CHECK(parser->buffer, '#')) {-        while (!IS_BREAKZ(parser->buffer)) {-            SKIP(parser);-            if (!CACHE(parser, 1)) goto error;-        }-    }--    /* Check if we are at the end of the line. */--    if (!IS_BREAKZ(parser->buffer)) {-        yaml_parser_set_scanner_error(parser, "while scanning a block scalar",-                start_mark, "did not find expected comment or line break");-        goto error;-    }--    /* Eat a line break. */--    if (IS_BREAK(parser->buffer)) {-        if (!CACHE(parser, 2)) goto error;-        SKIP_LINE(parser);-    }--    end_mark = parser->mark;--    /* Set the indentation level if it was specified. */--    if (increment) {-        indent = parser->indent >= 0 ? parser->indent+increment : increment;-    }--    /* Scan the leading line breaks and determine the indentation level if needed. */--    if (!yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks,-                start_mark, &end_mark)) goto error;--    /* Scan the block scalar content. */--    if (!CACHE(parser, 1)) goto error;--    while ((int)parser->mark.column == indent && !IS_Z(parser->buffer))-    {-        /*-         * We are at the beginning of a non-empty line.-         */--        /* Is it a trailing whitespace? */--        trailing_blank = IS_BLANK(parser->buffer);--        /* Check if we need to fold the leading line break. */--        if (!literal && (*leading_break.start == '\n')-                && !leading_blank && !trailing_blank)-        {-            /* Do we need to join the lines by space? */--            if (*trailing_breaks.start == '\0') {-                if (!STRING_EXTEND(parser, string)) goto error;-                *(string.pointer ++) = ' ';-            }--            CLEAR(parser, leading_break);-        }-        else {-            if (!JOIN(parser, string, leading_break)) goto error;-            CLEAR(parser, leading_break);-        }--        /* Append the remaining line breaks. */--        if (!JOIN(parser, string, trailing_breaks)) goto error;-        CLEAR(parser, trailing_breaks);--        /* Is it a leading whitespace? */--        leading_blank = IS_BLANK(parser->buffer);--        /* Consume the current line. */--        while (!IS_BREAKZ(parser->buffer)) {-            if (!READ(parser, string)) goto error;-            if (!CACHE(parser, 1)) goto error;-        }--        /* Consume the line break. */--        if (!CACHE(parser, 2)) goto error;--        if (!READ_LINE(parser, leading_break)) goto error;--        /* Eat the following indentation spaces and line breaks. */--        if (!yaml_parser_scan_block_scalar_breaks(parser,-                    &indent, &trailing_breaks, start_mark, &end_mark)) goto error;-    }--    /* Chomp the tail. */--    if (chomping != -1) {-        if (!JOIN(parser, string, leading_break)) goto error;-    }-    if (chomping == 1) {-        if (!JOIN(parser, string, trailing_breaks)) goto error;-    }--    /* Create a token. */--    SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start,-            literal ? YAML_LITERAL_SCALAR_STYLE : YAML_FOLDED_SCALAR_STYLE,-            start_mark, end_mark);--    STRING_DEL(parser, leading_break);-    STRING_DEL(parser, trailing_breaks);--    return 1;--error:-    STRING_DEL(parser, string);-    STRING_DEL(parser, leading_break);-    STRING_DEL(parser, trailing_breaks);--    return 0;-}--/*- * Scan indentation spaces and line breaks for a block scalar.  Determine the- * indentation level if needed.- */--static int-yaml_parser_scan_block_scalar_breaks(yaml_parser_t *parser,-        int *indent, yaml_string_t *breaks,-        yaml_mark_t start_mark, yaml_mark_t *end_mark)-{-    int max_indent = 0;--    *end_mark = parser->mark;--    /* Eat the indentation spaces and line breaks. */--    while (1)-    {-        /* Eat the indentation spaces. */--        if (!CACHE(parser, 1)) return 0;--        while ((!*indent || (int)parser->mark.column < *indent)-                && IS_SPACE(parser->buffer)) {-            SKIP(parser);-            if (!CACHE(parser, 1)) return 0;-        }--        if ((int)parser->mark.column > max_indent)-            max_indent = (int)parser->mark.column;--        /* Check for a tab character messing the indentation. */--        if ((!*indent || (int)parser->mark.column < *indent)-                && IS_TAB(parser->buffer)) {-            return yaml_parser_set_scanner_error(parser, "while scanning a block scalar",-                    start_mark, "found a tab character where an indentation space is expected");-        }--        /* Have we found a non-empty line? */--        if (!IS_BREAK(parser->buffer)) break;--        /* Consume the line break. */--        if (!CACHE(parser, 2)) return 0;-        if (!READ_LINE(parser, *breaks)) return 0;-        *end_mark = parser->mark;-    }--    /* Determine the indentation level if needed. */--    if (!*indent) {-        *indent = max_indent;-        if (*indent < parser->indent + 1)-            *indent = parser->indent + 1;-        if (*indent < 1)-            *indent = 1;-    }--   return 1;-}--/*- * Scan a quoted scalar.- */--static int-yaml_parser_scan_flow_scalar(yaml_parser_t *parser, yaml_token_t *token,-        int single)-{-    yaml_mark_t start_mark;-    yaml_mark_t end_mark;-    yaml_string_t string = NULL_STRING;-    yaml_string_t leading_break = NULL_STRING;-    yaml_string_t trailing_breaks = NULL_STRING;-    yaml_string_t whitespaces = NULL_STRING;-    int leading_blanks;--    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;-    if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error;-    if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error;-    if (!STRING_INIT(parser, whitespaces, INITIAL_STRING_SIZE)) goto error;--    /* Eat the left quote. */--    start_mark = parser->mark;--    SKIP(parser);--    /* Consume the content of the quoted scalar. */--    while (1)-    {-        /* Check that there are no document indicators at the beginning of the line. */--        if (!CACHE(parser, 4)) goto error;--        if (parser->mark.column == 0 &&-            ((CHECK_AT(parser->buffer, '-', 0) &&-              CHECK_AT(parser->buffer, '-', 1) &&-              CHECK_AT(parser->buffer, '-', 2)) ||-             (CHECK_AT(parser->buffer, '.', 0) &&-              CHECK_AT(parser->buffer, '.', 1) &&-              CHECK_AT(parser->buffer, '.', 2))) &&-            IS_BLANKZ_AT(parser->buffer, 3))-        {-            yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",-                    start_mark, "found unexpected document indicator");-            goto error;-        }--        /* Check for EOF. */--        if (IS_Z(parser->buffer)) {-            yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",-                    start_mark, "found unexpected end of stream");-            goto error;-        }--        /* Consume non-blank characters. */--        if (!CACHE(parser, 2)) goto error;--        leading_blanks = 0;--        while (!IS_BLANKZ(parser->buffer))-        {-            /* Check for an escaped single quote. */--            if (single && CHECK_AT(parser->buffer, '\'', 0)-                    && CHECK_AT(parser->buffer, '\'', 1))-            {-                if (!STRING_EXTEND(parser, string)) goto error;-                *(string.pointer++) = '\'';-                SKIP(parser);-                SKIP(parser);-            }--            /* Check for the right quote. */--            else if (CHECK(parser->buffer, single ? '\'' : '"'))-            {-                break;-            }--            /* Check for an escaped line break. */--            else if (!single && CHECK(parser->buffer, '\\')-                    && IS_BREAK_AT(parser->buffer, 1))-            {-                if (!CACHE(parser, 3)) goto error;-                SKIP(parser);-                SKIP_LINE(parser);-                leading_blanks = 1;-                break;-            }--            /* Check for an escape sequence. */--            else if (!single && CHECK(parser->buffer, '\\'))-            {-                size_t code_length = 0;--                if (!STRING_EXTEND(parser, string)) goto error;--                /* Check the escape character. */--                switch (parser->buffer.pointer[1])-                {-                    case '0':-                        *(string.pointer++) = '\0';-                        break;--                    case 'a':-                        *(string.pointer++) = '\x07';-                        break;--                    case 'b':-                        *(string.pointer++) = '\x08';-                        break;--                    case 't':-                    case '\t':-                        *(string.pointer++) = '\x09';-                        break;--                    case 'n':-                        *(string.pointer++) = '\x0A';-                        break;--                    case 'v':-                        *(string.pointer++) = '\x0B';-                        break;--                    case 'f':-                        *(string.pointer++) = '\x0C';-                        break;--                    case 'r':-                        *(string.pointer++) = '\x0D';-                        break;--                    case 'e':-                        *(string.pointer++) = '\x1B';-                        break;--                    case ' ':-                        *(string.pointer++) = '\x20';-                        break;--                    case '"':-                        *(string.pointer++) = '"';-                        break;--                    case '/':-                        *(string.pointer++) = '/';-                        break;--                    case '\\':-                        *(string.pointer++) = '\\';-                        break;--                    case 'N':   /* NEL (#x85) */-                        *(string.pointer++) = '\xC2';-                        *(string.pointer++) = '\x85';-                        break;--                    case '_':   /* #xA0 */-                        *(string.pointer++) = '\xC2';-                        *(string.pointer++) = '\xA0';-                        break;--                    case 'L':   /* LS (#x2028) */-                        *(string.pointer++) = '\xE2';-                        *(string.pointer++) = '\x80';-                        *(string.pointer++) = '\xA8';-                        break;--                    case 'P':   /* PS (#x2029) */-                        *(string.pointer++) = '\xE2';-                        *(string.pointer++) = '\x80';-                        *(string.pointer++) = '\xA9';-                        break;--                    case 'x':-                        code_length = 2;-                        break;--                    case 'u':-                        code_length = 4;-                        break;--                    case 'U':-                        code_length = 8;-                        break;--                    default:-                        yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",-                                start_mark, "found unknown escape character");-                        goto error;-                }--                SKIP(parser);-                SKIP(parser);--                /* Consume an arbitrary escape code. */--                if (code_length)-                {-                    unsigned int value = 0;-                    size_t k;--                    /* Scan the character value. */--                    if (!CACHE(parser, code_length)) goto error;--                    for (k = 0; k < code_length; k ++) {-                        if (!IS_HEX_AT(parser->buffer, k)) {-                            yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",-                                    start_mark, "did not find expected hexdecimal number");-                            goto error;-                        }-                        value = (value << 4) + AS_HEX_AT(parser->buffer, k);-                    }--                    /* Check the value and write the character. */--                    if ((value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF) {-                        yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",-                                start_mark, "found invalid Unicode character escape code");-                        goto error;-                    }--                    if (value <= 0x7F) {-                        *(string.pointer++) = value;-                    }-                    else if (value <= 0x7FF) {-                        *(string.pointer++) = 0xC0 + (value >> 6);-                        *(string.pointer++) = 0x80 + (value & 0x3F);-                    }-                    else if (value <= 0xFFFF) {-                        *(string.pointer++) = 0xE0 + (value >> 12);-                        *(string.pointer++) = 0x80 + ((value >> 6) & 0x3F);-                        *(string.pointer++) = 0x80 + (value & 0x3F);-                    }-                    else {-                        *(string.pointer++) = 0xF0 + (value >> 18);-                        *(string.pointer++) = 0x80 + ((value >> 12) & 0x3F);-                        *(string.pointer++) = 0x80 + ((value >> 6) & 0x3F);-                        *(string.pointer++) = 0x80 + (value & 0x3F);-                    }--                    /* Advance the pointer. */--                    for (k = 0; k < code_length; k ++) {-                        SKIP(parser);-                    }-                }-            }--            else-            {-                /* It is a non-escaped non-blank character. */--                if (!READ(parser, string)) goto error;-            }--            if (!CACHE(parser, 2)) goto error;-        }--        /* Check if we are at the end of the scalar. */--        /* Fix for crash unitialized value crash-         * Credit for the bug and input is to OSS Fuzz-         * Credit for the fix to Alex Gaynor-         */-        if (!CACHE(parser, 1)) goto error;-        if (CHECK(parser->buffer, single ? '\'' : '"'))-            break;--        /* Consume blank characters. */--        if (!CACHE(parser, 1)) goto error;--        while (IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer))-        {-            if (IS_BLANK(parser->buffer))-            {-                /* Consume a space or a tab character. */--                if (!leading_blanks) {-                    if (!READ(parser, whitespaces)) goto error;-                }-                else {-                    SKIP(parser);-                }-            }-            else-            {-                if (!CACHE(parser, 2)) goto error;--                /* Check if it is a first line break. */--                if (!leading_blanks)-                {-                    CLEAR(parser, whitespaces);-                    if (!READ_LINE(parser, leading_break)) goto error;-                    leading_blanks = 1;-                }-                else-                {-                    if (!READ_LINE(parser, trailing_breaks)) goto error;-                }-            }-            if (!CACHE(parser, 1)) goto error;-        }--        /* Join the whitespaces or fold line breaks. */--        if (leading_blanks)-        {-            /* Do we need to fold line breaks? */--            if (leading_break.start[0] == '\n') {-                if (trailing_breaks.start[0] == '\0') {-                    if (!STRING_EXTEND(parser, string)) goto error;-                    *(string.pointer++) = ' ';-                }-                else {-                    if (!JOIN(parser, string, trailing_breaks)) goto error;-                    CLEAR(parser, trailing_breaks);-                }-                CLEAR(parser, leading_break);-            }-            else {-                if (!JOIN(parser, string, leading_break)) goto error;-                if (!JOIN(parser, string, trailing_breaks)) goto error;-                CLEAR(parser, leading_break);-                CLEAR(parser, trailing_breaks);-            }-        }-        else-        {-            if (!JOIN(parser, string, whitespaces)) goto error;-            CLEAR(parser, whitespaces);-        }-    }--    /* Eat the right quote. */--    SKIP(parser);--    end_mark = parser->mark;--    /* Create a token. */--    SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start,-            single ? YAML_SINGLE_QUOTED_SCALAR_STYLE : YAML_DOUBLE_QUOTED_SCALAR_STYLE,-            start_mark, end_mark);--    STRING_DEL(parser, leading_break);-    STRING_DEL(parser, trailing_breaks);-    STRING_DEL(parser, whitespaces);--    return 1;--error:-    STRING_DEL(parser, string);-    STRING_DEL(parser, leading_break);-    STRING_DEL(parser, trailing_breaks);-    STRING_DEL(parser, whitespaces);--    return 0;-}--/*- * Scan a plain scalar.- */--static int-yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token)-{-    yaml_mark_t start_mark;-    yaml_mark_t end_mark;-    yaml_string_t string = NULL_STRING;-    yaml_string_t leading_break = NULL_STRING;-    yaml_string_t trailing_breaks = NULL_STRING;-    yaml_string_t whitespaces = NULL_STRING;-    int leading_blanks = 0;-    int indent = parser->indent+1;--    if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error;-    if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error;-    if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error;-    if (!STRING_INIT(parser, whitespaces, INITIAL_STRING_SIZE)) goto error;--    start_mark = end_mark = parser->mark;--    /* Consume the content of the plain scalar. */--    while (1)-    {-        /* Check for a document indicator. */--        if (!CACHE(parser, 4)) goto error;--        if (parser->mark.column == 0 &&-            ((CHECK_AT(parser->buffer, '-', 0) &&-              CHECK_AT(parser->buffer, '-', 1) &&-              CHECK_AT(parser->buffer, '-', 2)) ||-             (CHECK_AT(parser->buffer, '.', 0) &&-              CHECK_AT(parser->buffer, '.', 1) &&-              CHECK_AT(parser->buffer, '.', 2))) &&-            IS_BLANKZ_AT(parser->buffer, 3)) break;--        /* Check for a comment. */--        if (CHECK(parser->buffer, '#'))-            break;--        /* Consume non-blank characters. */--        while (!IS_BLANKZ(parser->buffer))-        {-            /* Check for 'x:x' in the flow context. TODO: Fix the test "spec-08-13". */--            if (parser->flow_level-                    && CHECK(parser->buffer, ':')-                    && !IS_BLANKZ_AT(parser->buffer, 1)) {-                yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",-                        start_mark, "found unexpected ':'");-                goto error;-            }--            /* Check for indicators that may end a plain scalar. */--            if ((CHECK(parser->buffer, ':') && IS_BLANKZ_AT(parser->buffer, 1))-                    || (parser->flow_level &&-                        (CHECK(parser->buffer, ',') || CHECK(parser->buffer, ':')-                         || CHECK(parser->buffer, '?') || CHECK(parser->buffer, '[')-                         || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '{')-                         || CHECK(parser->buffer, '}'))))-                break;--            /* Check if we need to join whitespaces and breaks. */--            if (leading_blanks || whitespaces.start != whitespaces.pointer)-            {-                if (leading_blanks)-                {-                    /* Do we need to fold line breaks? */--                    if (leading_break.start[0] == '\n') {-                        if (trailing_breaks.start[0] == '\0') {-                            if (!STRING_EXTEND(parser, string)) goto error;-                            *(string.pointer++) = ' ';-                        }-                        else {-                            if (!JOIN(parser, string, trailing_breaks)) goto error;-                            CLEAR(parser, trailing_breaks);-                        }-                        CLEAR(parser, leading_break);-                    }-                    else {-                        if (!JOIN(parser, string, leading_break)) goto error;-                        if (!JOIN(parser, string, trailing_breaks)) goto error;-                        CLEAR(parser, leading_break);-                        CLEAR(parser, trailing_breaks);-                    }--                    leading_blanks = 0;-                }-                else-                {-                    if (!JOIN(parser, string, whitespaces)) goto error;-                    CLEAR(parser, whitespaces);-                }-            }--            /* Copy the character. */--            if (!READ(parser, string)) goto error;--            end_mark = parser->mark;--            if (!CACHE(parser, 2)) goto error;-        }--        /* Is it the end? */--        if (!(IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer)))-            break;--        /* Consume blank characters. */--        if (!CACHE(parser, 1)) goto error;--        while (IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer))-        {-            if (IS_BLANK(parser->buffer))-            {-                /* Check for tab character that abuse indentation. */--                if (leading_blanks && (int)parser->mark.column < indent-                        && IS_TAB(parser->buffer)) {-                    yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",-                            start_mark, "found a tab character that violate indentation");-                    goto error;-                }--                /* Consume a space or a tab character. */--                if (!leading_blanks) {-                    if (!READ(parser, whitespaces)) goto error;-                }-                else {-                    SKIP(parser);-                }-            }-            else-            {-                if (!CACHE(parser, 2)) goto error;--                /* Check if it is a first line break. */--                if (!leading_blanks)-                {-                    CLEAR(parser, whitespaces);-                    if (!READ_LINE(parser, leading_break)) goto error;-                    leading_blanks = 1;-                }-                else-                {-                    if (!READ_LINE(parser, trailing_breaks)) goto error;-                }-            }-            if (!CACHE(parser, 1)) goto error;-        }--        /* Check indentation level. */--        if (!parser->flow_level && (int)parser->mark.column < indent)-            break;-    }--    /* Create a token. */--    SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start,-            YAML_PLAIN_SCALAR_STYLE, start_mark, end_mark);--    /* Note that we change the 'simple_key_allowed' flag. */--    if (leading_blanks) {-        parser->simple_key_allowed = 1;-    }--    STRING_DEL(parser, leading_break);-    STRING_DEL(parser, trailing_breaks);-    STRING_DEL(parser, whitespaces);--    return 1;--error:-    STRING_DEL(parser, string);-    STRING_DEL(parser, leading_break);-    STRING_DEL(parser, trailing_breaks);-    STRING_DEL(parser, whitespaces);--    return 0;-}
− libyaml/writer.c 
@@ -1,141 +0,0 @@--#include "yaml_private.h"--/*- * Declarations.- */--static int-yaml_emitter_set_writer_error(yaml_emitter_t *emitter, const char *problem);--YAML_DECLARE(int)-yaml_emitter_flush(yaml_emitter_t *emitter);--/*- * Set the writer error and return 0.- */--static int-yaml_emitter_set_writer_error(yaml_emitter_t *emitter, const char *problem)-{-    emitter->error = YAML_WRITER_ERROR;-    emitter->problem = problem;--    return 0;-}--/*- * Flush the output buffer.- */--YAML_DECLARE(int)-yaml_emitter_flush(yaml_emitter_t *emitter)-{-    int low, high;--    assert(emitter);    /* Non-NULL emitter object is expected. */-    assert(emitter->write_handler); /* Write handler must be set. */-    assert(emitter->encoding);  /* Output encoding must be set. */--    emitter->buffer.last = emitter->buffer.pointer;-    emitter->buffer.pointer = emitter->buffer.start;--    /* Check if the buffer is empty. */--    if (emitter->buffer.start == emitter->buffer.last) {-        return 1;-    }--    /* If the output encoding is UTF-8, we don't need to recode the buffer. */--    if (emitter->encoding == YAML_UTF8_ENCODING)-    {-        if (emitter->write_handler(emitter->write_handler_data,-                    emitter->buffer.start,-                    emitter->buffer.last - emitter->buffer.start)) {-            emitter->buffer.last = emitter->buffer.start;-            emitter->buffer.pointer = emitter->buffer.start;-            return 1;-        }-        else {-            return yaml_emitter_set_writer_error(emitter, "write error");-        }-    }--    /* Recode the buffer into the raw buffer. */--    low = (emitter->encoding == YAML_UTF16LE_ENCODING ? 0 : 1);-    high = (emitter->encoding == YAML_UTF16LE_ENCODING ? 1 : 0);--    while (emitter->buffer.pointer != emitter->buffer.last)-    {-        unsigned char octet;-        unsigned int width;-        unsigned int value;-        size_t k;--        /*-         * See the "reader.c" code for more details on UTF-8 encoding.  Note-         * that we assume that the buffer contains a valid UTF-8 sequence.-         */--        /* Read the next UTF-8 character. */--        octet = emitter->buffer.pointer[0];--        width = (octet & 0x80) == 0x00 ? 1 :-                (octet & 0xE0) == 0xC0 ? 2 :-                (octet & 0xF0) == 0xE0 ? 3 :-                (octet & 0xF8) == 0xF0 ? 4 : 0;--        value = (octet & 0x80) == 0x00 ? octet & 0x7F :-                (octet & 0xE0) == 0xC0 ? octet & 0x1F :-                (octet & 0xF0) == 0xE0 ? octet & 0x0F :-                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;--        for (k = 1; k < width; k ++) {-            octet = emitter->buffer.pointer[k];-            value = (value << 6) + (octet & 0x3F);-        }--        emitter->buffer.pointer += width;--        /* Write the character. */--        if (value < 0x10000)-        {-            emitter->raw_buffer.last[high] = value >> 8;-            emitter->raw_buffer.last[low] = value & 0xFF;--            emitter->raw_buffer.last += 2;-        }-        else-        {-            /* Write the character using a surrogate pair (check "reader.c"). */--            value -= 0x10000;-            emitter->raw_buffer.last[high] = 0xD8 + (value >> 18);-            emitter->raw_buffer.last[low] = (value >> 10) & 0xFF;-            emitter->raw_buffer.last[high+2] = 0xDC + ((value >> 8) & 0xFF);-            emitter->raw_buffer.last[low+2] = value & 0xFF;--            emitter->raw_buffer.last += 4;-        }-    }--    /* Write the raw buffer. */--    if (emitter->write_handler(emitter->write_handler_data,-                emitter->raw_buffer.start,-                emitter->raw_buffer.last - emitter->raw_buffer.start)) {-        emitter->buffer.last = emitter->buffer.start;-        emitter->buffer.pointer = emitter->buffer.start;-        emitter->raw_buffer.last = emitter->raw_buffer.start;-        emitter->raw_buffer.pointer = emitter->raw_buffer.start;-        return 1;-    }-    else {-        return yaml_emitter_set_writer_error(emitter, "write error");-    }-}-
− libyaml/yaml.h 
@@ -1,1973 +0,0 @@-/**- * @file yaml.h- * @brief Public interface for libyaml.- * - * Include the header file with the code:- * @code- * #include <yaml.h>- * @endcode- */--#ifndef YAML_H-#define YAML_H--#ifdef __cplusplus-extern "C" {-#endif--#include <stdlib.h>-#include <stdio.h>-#include <string.h>--/**- * @defgroup export Export Definitions- * @{- */--/** The public API declaration. */--#if defined(__MINGW32__)-#   define  YAML_DECLARE(type)  type-#elif defined(WIN32)-#   if defined(YAML_DECLARE_STATIC)-#       define  YAML_DECLARE(type)  type-#   elif defined(YAML_DECLARE_EXPORT)-#       define  YAML_DECLARE(type)  __declspec(dllexport) type-#   else-#       define  YAML_DECLARE(type)  __declspec(dllimport) type-#   endif-#else-#   define  YAML_DECLARE(type)  type-#endif--/** @} */--/**- * @defgroup version Version Information- * @{- */--/**- * Get the library version as a string.- *- * @returns The function returns the pointer to a static string of the form- * @c "X.Y.Z", where @c X is the major version number, @c Y is a minor version- * number, and @c Z is the patch version number.- */--YAML_DECLARE(const char *)-yaml_get_version_string(void);--/**- * Get the library version numbers.- *- * @param[out]      major   Major version number.- * @param[out]      minor   Minor version number.- * @param[out]      patch   Patch version number.- */--YAML_DECLARE(void)-yaml_get_version(int *major, int *minor, int *patch);--/** @} */--/**- * @defgroup basic Basic Types- * @{- */--/** The character type (UTF-8 octet). */-typedef unsigned char yaml_char_t;--/** The version directive data. */-typedef struct yaml_version_directive_s {-    /** The major version number. */-    int major;-    /** The minor version number. */-    int minor;-} yaml_version_directive_t;--/** The tag directive data. */-typedef struct yaml_tag_directive_s {-    /** The tag handle. */-    yaml_char_t *handle;-    /** The tag prefix. */-    yaml_char_t *prefix;-} yaml_tag_directive_t;--/** The stream encoding. */-typedef enum yaml_encoding_e {-    /** Let the parser choose the encoding. */-    YAML_ANY_ENCODING,-    /** The default UTF-8 encoding. */-    YAML_UTF8_ENCODING,-    /** The UTF-16-LE encoding with BOM. */-    YAML_UTF16LE_ENCODING,-    /** The UTF-16-BE encoding with BOM. */-    YAML_UTF16BE_ENCODING-} yaml_encoding_t;--/** Line break types. */--typedef enum yaml_break_e {-    /** Let the parser choose the break type. */-    YAML_ANY_BREAK,-    /** Use CR for line breaks (Mac style). */-    YAML_CR_BREAK,-    /** Use LN for line breaks (Unix style). */-    YAML_LN_BREAK,-    /** Use CR LN for line breaks (DOS style). */-    YAML_CRLN_BREAK-} yaml_break_t;--/** Many bad things could happen with the parser and emitter. */-typedef enum yaml_error_type_e {-    /** No error is produced. */-    YAML_NO_ERROR,--    /** Cannot allocate or reallocate a block of memory. */-    YAML_MEMORY_ERROR,--    /** Cannot read or decode the input stream. */-    YAML_READER_ERROR,-    /** Cannot scan the input stream. */-    YAML_SCANNER_ERROR,-    /** Cannot parse the input stream. */-    YAML_PARSER_ERROR,-    /** Cannot compose a YAML document. */-    YAML_COMPOSER_ERROR,--    /** Cannot write to the output stream. */-    YAML_WRITER_ERROR,-    /** Cannot emit a YAML stream. */-    YAML_EMITTER_ERROR-} yaml_error_type_t;--/** The pointer position. */-typedef struct yaml_mark_s {-    /** The position index. */-    size_t index;--    /** The position line. */-    size_t line;--    /** The position column. */-    size_t column;-} yaml_mark_t;--/** @} */--/**- * @defgroup styles Node Styles- * @{- */--/** Scalar styles. */-typedef enum yaml_scalar_style_e {-    /** Let the emitter choose the style. */-    YAML_ANY_SCALAR_STYLE,--    /** The plain scalar style. */-    YAML_PLAIN_SCALAR_STYLE,--    /** The single-quoted scalar style. */-    YAML_SINGLE_QUOTED_SCALAR_STYLE,-    /** The double-quoted scalar style. */-    YAML_DOUBLE_QUOTED_SCALAR_STYLE,--    /** The literal scalar style. */-    YAML_LITERAL_SCALAR_STYLE,-    /** The folded scalar style. */-    YAML_FOLDED_SCALAR_STYLE-} yaml_scalar_style_t;--/** Sequence styles. */-typedef enum yaml_sequence_style_e {-    /** Let the emitter choose the style. */-    YAML_ANY_SEQUENCE_STYLE,--    /** The block sequence style. */-    YAML_BLOCK_SEQUENCE_STYLE,-    /** The flow sequence style. */-    YAML_FLOW_SEQUENCE_STYLE-} yaml_sequence_style_t;--/** Mapping styles. */-typedef enum yaml_mapping_style_e {-    /** Let the emitter choose the style. */-    YAML_ANY_MAPPING_STYLE,--    /** The block mapping style. */-    YAML_BLOCK_MAPPING_STYLE,-    /** The flow mapping style. */-    YAML_FLOW_MAPPING_STYLE-/*    YAML_FLOW_SET_MAPPING_STYLE   */-} yaml_mapping_style_t;--/** @} */--/**- * @defgroup tokens Tokens- * @{- */--/** Token types. */-typedef enum yaml_token_type_e {-    /** An empty token. */-    YAML_NO_TOKEN,--    /** A STREAM-START token. */-    YAML_STREAM_START_TOKEN,-    /** A STREAM-END token. */-    YAML_STREAM_END_TOKEN,--    /** A VERSION-DIRECTIVE token. */-    YAML_VERSION_DIRECTIVE_TOKEN,-    /** A TAG-DIRECTIVE token. */-    YAML_TAG_DIRECTIVE_TOKEN,-    /** A DOCUMENT-START token. */-    YAML_DOCUMENT_START_TOKEN,-    /** A DOCUMENT-END token. */-    YAML_DOCUMENT_END_TOKEN,--    /** A BLOCK-SEQUENCE-START token. */-    YAML_BLOCK_SEQUENCE_START_TOKEN,-    /** A BLOCK-SEQUENCE-END token. */-    YAML_BLOCK_MAPPING_START_TOKEN,-    /** A BLOCK-END token. */-    YAML_BLOCK_END_TOKEN,--    /** A FLOW-SEQUENCE-START token. */-    YAML_FLOW_SEQUENCE_START_TOKEN,-    /** A FLOW-SEQUENCE-END token. */-    YAML_FLOW_SEQUENCE_END_TOKEN,-    /** A FLOW-MAPPING-START token. */-    YAML_FLOW_MAPPING_START_TOKEN,-    /** A FLOW-MAPPING-END token. */-    YAML_FLOW_MAPPING_END_TOKEN,--    /** A BLOCK-ENTRY token. */-    YAML_BLOCK_ENTRY_TOKEN,-    /** A FLOW-ENTRY token. */-    YAML_FLOW_ENTRY_TOKEN,-    /** A KEY token. */-    YAML_KEY_TOKEN,-    /** A VALUE token. */-    YAML_VALUE_TOKEN,--    /** An ALIAS token. */-    YAML_ALIAS_TOKEN,-    /** An ANCHOR token. */-    YAML_ANCHOR_TOKEN,-    /** A TAG token. */-    YAML_TAG_TOKEN,-    /** A SCALAR token. */-    YAML_SCALAR_TOKEN-} yaml_token_type_t;--/** The token structure. */-typedef struct yaml_token_s {--    /** The token type. */-    yaml_token_type_t type;--    /** The token data. */-    union {--        /** The stream start (for @c YAML_STREAM_START_TOKEN). */-        struct {-            /** The stream encoding. */-            yaml_encoding_t encoding;-        } stream_start;--        /** The alias (for @c YAML_ALIAS_TOKEN). */-        struct {-            /** The alias value. */-            yaml_char_t *value;-        } alias;--        /** The anchor (for @c YAML_ANCHOR_TOKEN). */-        struct {-            /** The anchor value. */-            yaml_char_t *value;-        } anchor;--        /** The tag (for @c YAML_TAG_TOKEN). */-        struct {-            /** The tag handle. */-            yaml_char_t *handle;-            /** The tag suffix. */-            yaml_char_t *suffix;-        } tag;--        /** The scalar value (for @c YAML_SCALAR_TOKEN). */-        struct {-            /** The scalar value. */-            yaml_char_t *value;-            /** The length of the scalar value. */-            size_t length;-            /** The scalar style. */-            yaml_scalar_style_t style;-        } scalar;--        /** The version directive (for @c YAML_VERSION_DIRECTIVE_TOKEN). */-        struct {-            /** The major version number. */-            int major;-            /** The minor version number. */-            int minor;-        } version_directive;--        /** The tag directive (for @c YAML_TAG_DIRECTIVE_TOKEN). */-        struct {-            /** The tag handle. */-            yaml_char_t *handle;-            /** The tag prefix. */-            yaml_char_t *prefix;-        } tag_directive;--    } data;--    /** The beginning of the token. */-    yaml_mark_t start_mark;-    /** The end of the token. */-    yaml_mark_t end_mark;--} yaml_token_t;--/**- * Free any memory allocated for a token object.- *- * @param[in,out]   token   A token object.- */--YAML_DECLARE(void)-yaml_token_delete(yaml_token_t *token);--/** @} */--/**- * @defgroup events Events- * @{- */--/** Event types. */-typedef enum yaml_event_type_e {-    /** An empty event. */-    YAML_NO_EVENT,--    /** A STREAM-START event. */-    YAML_STREAM_START_EVENT,-    /** A STREAM-END event. */-    YAML_STREAM_END_EVENT,--    /** A DOCUMENT-START event. */-    YAML_DOCUMENT_START_EVENT,-    /** A DOCUMENT-END event. */-    YAML_DOCUMENT_END_EVENT,--    /** An ALIAS event. */-    YAML_ALIAS_EVENT,-    /** A SCALAR event. */-    YAML_SCALAR_EVENT,--    /** A SEQUENCE-START event. */-    YAML_SEQUENCE_START_EVENT,-    /** A SEQUENCE-END event. */-    YAML_SEQUENCE_END_EVENT,--    /** A MAPPING-START event. */-    YAML_MAPPING_START_EVENT,-    /** A MAPPING-END event. */-    YAML_MAPPING_END_EVENT-} yaml_event_type_t;--/** The event structure. */-typedef struct yaml_event_s {--    /** The event type. */-    yaml_event_type_t type;--    /** The event data. */-    union {-        -        /** The stream parameters (for @c YAML_STREAM_START_EVENT). */-        struct {-            /** The document encoding. */-            yaml_encoding_t encoding;-        } stream_start;--        /** The document parameters (for @c YAML_DOCUMENT_START_EVENT). */-        struct {-            /** The version directive. */-            yaml_version_directive_t *version_directive;--            /** The list of tag directives. */-            struct {-                /** The beginning of the tag directives list. */-                yaml_tag_directive_t *start;-                /** The end of the tag directives list. */-                yaml_tag_directive_t *end;-            } tag_directives;--            /** Is the document indicator implicit? */-            int implicit;-        } document_start;--        /** The document end parameters (for @c YAML_DOCUMENT_END_EVENT). */-        struct {-            /** Is the document end indicator implicit? */-            int implicit;-        } document_end;--        /** The alias parameters (for @c YAML_ALIAS_EVENT). */-        struct {-            /** The anchor. */-            yaml_char_t *anchor;-        } alias;--        /** The scalar parameters (for @c YAML_SCALAR_EVENT). */-        struct {-            /** The anchor. */-            yaml_char_t *anchor;-            /** The tag. */-            yaml_char_t *tag;-            /** The scalar value. */-            yaml_char_t *value;-            /** The length of the scalar value. */-            size_t length;-            /** Is the tag optional for the plain style? */-            int plain_implicit;-            /** Is the tag optional for any non-plain style? */-            int quoted_implicit;-            /** The scalar style. */-            yaml_scalar_style_t style;-        } scalar;--        /** The sequence parameters (for @c YAML_SEQUENCE_START_EVENT). */-        struct {-            /** The anchor. */-            yaml_char_t *anchor;-            /** The tag. */-            yaml_char_t *tag;-            /** Is the tag optional? */-            int implicit;-            /** The sequence style. */-            yaml_sequence_style_t style;-        } sequence_start;--        /** The mapping parameters (for @c YAML_MAPPING_START_EVENT). */-        struct {-            /** The anchor. */-            yaml_char_t *anchor;-            /** The tag. */-            yaml_char_t *tag;-            /** Is the tag optional? */-            int implicit;-            /** The mapping style. */-            yaml_mapping_style_t style;-        } mapping_start;--    } data;--    /** The beginning of the event. */-    yaml_mark_t start_mark;-    /** The end of the event. */-    yaml_mark_t end_mark;--} yaml_event_t;--/**- * Create the STREAM-START event.- *- * @param[out]      event       An empty event object.- * @param[in]       encoding    The stream encoding.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_stream_start_event_initialize(yaml_event_t *event,-        yaml_encoding_t encoding);--/**- * Create the STREAM-END event.- *- * @param[out]      event       An empty event object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_stream_end_event_initialize(yaml_event_t *event);--/**- * Create the DOCUMENT-START event.- *- * The @a implicit argument is considered as a stylistic parameter and may be- * ignored by the emitter.- *- * @param[out]      event                   An empty event object.- * @param[in]       version_directive       The %YAML directive value or- *                                          @c NULL.- * @param[in]       tag_directives_start    The beginning of the %TAG- *                                          directives list.- * @param[in]       tag_directives_end      The end of the %TAG directives- *                                          list.- * @param[in]       implicit                If the document start indicator is- *                                          implicit.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_document_start_event_initialize(yaml_event_t *event,-        yaml_version_directive_t *version_directive,-        yaml_tag_directive_t *tag_directives_start,-        yaml_tag_directive_t *tag_directives_end,-        int implicit);--/**- * Create the DOCUMENT-END event.- *- * The @a implicit argument is considered as a stylistic parameter and may be- * ignored by the emitter.- *- * @param[out]      event       An empty event object.- * @param[in]       implicit    If the document end indicator is implicit.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_document_end_event_initialize(yaml_event_t *event, int implicit);--/**- * Create an ALIAS event.- *- * @param[out]      event       An empty event object.- * @param[in]       anchor      The anchor value.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor);--/**- * Create a SCALAR event.- *- * The @a style argument may be ignored by the emitter.- *- * Either the @a tag attribute or one of the @a plain_implicit and- * @a quoted_implicit flags must be set.- *- * @param[out]      event           An empty event object.- * @param[in]       anchor          The scalar anchor or @c NULL.- * @param[in]       tag             The scalar tag or @c NULL.- * @param[in]       value           The scalar value.- * @param[in]       length          The length of the scalar value.- * @param[in]       plain_implicit  If the tag may be omitted for the plain- *                                  style.- * @param[in]       quoted_implicit If the tag may be omitted for any- *                                  non-plain style.- * @param[in]       style           The scalar style.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_scalar_event_initialize(yaml_event_t *event,-        yaml_char_t *anchor, yaml_char_t *tag,-        yaml_char_t *value, int length,-        int plain_implicit, int quoted_implicit,-        yaml_scalar_style_t style);--/**- * Create a SEQUENCE-START event.- *- * The @a style argument may be ignored by the emitter.- *- * Either the @a tag attribute or the @a implicit flag must be set.- *- * @param[out]      event       An empty event object.- * @param[in]       anchor      The sequence anchor or @c NULL.- * @param[in]       tag         The sequence tag or @c NULL.- * @param[in]       implicit    If the tag may be omitted.- * @param[in]       style       The sequence style.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_sequence_start_event_initialize(yaml_event_t *event,-        yaml_char_t *anchor, yaml_char_t *tag, int implicit,-        yaml_sequence_style_t style);--/**- * Create a SEQUENCE-END event.- *- * @param[out]      event       An empty event object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_sequence_end_event_initialize(yaml_event_t *event);--/**- * Create a MAPPING-START event.- *- * The @a style argument may be ignored by the emitter.- *- * Either the @a tag attribute or the @a implicit flag must be set.- *- * @param[out]      event       An empty event object.- * @param[in]       anchor      The mapping anchor or @c NULL.- * @param[in]       tag         The mapping tag or @c NULL.- * @param[in]       implicit    If the tag may be omitted.- * @param[in]       style       The mapping style.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_mapping_start_event_initialize(yaml_event_t *event,-        yaml_char_t *anchor, yaml_char_t *tag, int implicit,-        yaml_mapping_style_t style);--/**- * Create a MAPPING-END event.- *- * @param[out]      event       An empty event object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_mapping_end_event_initialize(yaml_event_t *event);--/**- * Free any memory allocated for an event object.- *- * @param[in,out]   event   An event object.- */--YAML_DECLARE(void)-yaml_event_delete(yaml_event_t *event);--/** @} */--/**- * @defgroup nodes Nodes- * @{- */--/** The tag @c !!null with the only possible value: @c null. */-#define YAML_NULL_TAG       "tag:yaml.org,2002:null"-/** The tag @c !!bool with the values: @c true and @c false. */-#define YAML_BOOL_TAG       "tag:yaml.org,2002:bool"-/** The tag @c !!str for string values. */-#define YAML_STR_TAG        "tag:yaml.org,2002:str"-/** The tag @c !!int for integer values. */-#define YAML_INT_TAG        "tag:yaml.org,2002:int"-/** The tag @c !!float for float values. */-#define YAML_FLOAT_TAG      "tag:yaml.org,2002:float"-/** The tag @c !!timestamp for date and time values. */-#define YAML_TIMESTAMP_TAG  "tag:yaml.org,2002:timestamp"--/** The tag @c !!seq is used to denote sequences. */-#define YAML_SEQ_TAG        "tag:yaml.org,2002:seq"-/** The tag @c !!map is used to denote mapping. */-#define YAML_MAP_TAG        "tag:yaml.org,2002:map"--/** The default scalar tag is @c !!str. */-#define YAML_DEFAULT_SCALAR_TAG     YAML_STR_TAG-/** The default sequence tag is @c !!seq. */-#define YAML_DEFAULT_SEQUENCE_TAG   YAML_SEQ_TAG-/** The default mapping tag is @c !!map. */-#define YAML_DEFAULT_MAPPING_TAG    YAML_MAP_TAG--/** Node types. */-typedef enum yaml_node_type_e {-    /** An empty node. */-    YAML_NO_NODE,--    /** A scalar node. */-    YAML_SCALAR_NODE,-    /** A sequence node. */-    YAML_SEQUENCE_NODE,-    /** A mapping node. */-    YAML_MAPPING_NODE-} yaml_node_type_t;--/** The forward definition of a document node structure. */-typedef struct yaml_node_s yaml_node_t;--/** An element of a sequence node. */-typedef int yaml_node_item_t;--/** An element of a mapping node. */-typedef struct yaml_node_pair_s {-    /** The key of the element. */-    int key;-    /** The value of the element. */-    int value;-} yaml_node_pair_t;--/** The node structure. */-struct yaml_node_s {--    /** The node type. */-    yaml_node_type_t type;--    /** The node tag. */-    yaml_char_t *tag;--    /** The node data. */-    union {-        -        /** The scalar parameters (for @c YAML_SCALAR_NODE). */-        struct {-            /** The scalar value. */-            yaml_char_t *value;-            /** The length of the scalar value. */-            size_t length;-            /** The scalar style. */-            yaml_scalar_style_t style;-        } scalar;--        /** The sequence parameters (for @c YAML_SEQUENCE_NODE). */-        struct {-            /** The stack of sequence items. */-            struct {-                /** The beginning of the stack. */-                yaml_node_item_t *start;-                /** The end of the stack. */-                yaml_node_item_t *end;-                /** The top of the stack. */-                yaml_node_item_t *top;-            } items;-            /** The sequence style. */-            yaml_sequence_style_t style;-        } sequence;--        /** The mapping parameters (for @c YAML_MAPPING_NODE). */-        struct {-            /** The stack of mapping pairs (key, value). */-            struct {-                /** The beginning of the stack. */-                yaml_node_pair_t *start;-                /** The end of the stack. */-                yaml_node_pair_t *end;-                /** The top of the stack. */-                yaml_node_pair_t *top;-            } pairs;-            /** The mapping style. */-            yaml_mapping_style_t style;-        } mapping;--    } data;--    /** The beginning of the node. */-    yaml_mark_t start_mark;-    /** The end of the node. */-    yaml_mark_t end_mark;--};--/** The document structure. */-typedef struct yaml_document_s {--    /** The document nodes. */-    struct {-        /** The beginning of the stack. */-        yaml_node_t *start;-        /** The end of the stack. */-        yaml_node_t *end;-        /** The top of the stack. */-        yaml_node_t *top;-    } nodes;--    /** The version directive. */-    yaml_version_directive_t *version_directive;--    /** The list of tag directives. */-    struct {-        /** The beginning of the tag directives list. */-        yaml_tag_directive_t *start;-        /** The end of the tag directives list. */-        yaml_tag_directive_t *end;-    } tag_directives;--    /** Is the document start indicator implicit? */-    int start_implicit;-    /** Is the document end indicator implicit? */-    int end_implicit;--    /** The beginning of the document. */-    yaml_mark_t start_mark;-    /** The end of the document. */-    yaml_mark_t end_mark;--} yaml_document_t;--/**- * Create a YAML document.- *- * @param[out]      document                An empty document object.- * @param[in]       version_directive       The %YAML directive value or- *                                          @c NULL.- * @param[in]       tag_directives_start    The beginning of the %TAG- *                                          directives list.- * @param[in]       tag_directives_end      The end of the %TAG directives- *                                          list.- * @param[in]       start_implicit          If the document start indicator is- *                                          implicit.- * @param[in]       end_implicit            If the document end indicator is- *                                          implicit.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_document_initialize(yaml_document_t *document,-        yaml_version_directive_t *version_directive,-        yaml_tag_directive_t *tag_directives_start,-        yaml_tag_directive_t *tag_directives_end,-        int start_implicit, int end_implicit);--/**- * Delete a YAML document and all its nodes.- *- * @param[in,out]   document        A document object.- */--YAML_DECLARE(void)-yaml_document_delete(yaml_document_t *document);--/**- * Get a node of a YAML document.- *- * The pointer returned by this function is valid until any of the functions- * modifying the documents are called.- *- * @param[in]       document        A document object.- * @param[in]       index           The node id.- *- * @returns the node objct or @c NULL if @c node_id is out of range.- */--YAML_DECLARE(yaml_node_t *)-yaml_document_get_node(yaml_document_t *document, int index);--/**- * Get the root of a YAML document node.- *- * The root object is the first object added to the document.- *- * The pointer returned by this function is valid until any of the functions- * modifying the documents are called.- *- * An empty document produced by the parser signifies the end of a YAML- * stream.- *- * @param[in]       document        A document object.- *- * @returns the node object or @c NULL if the document is empty.- */--YAML_DECLARE(yaml_node_t *)-yaml_document_get_root_node(yaml_document_t *document);--/**- * Create a SCALAR node and attach it to the document.- *- * The @a style argument may be ignored by the emitter.- *- * @param[in,out]   document        A document object.- * @param[in]       tag             The scalar tag.- * @param[in]       value           The scalar value.- * @param[in]       length          The length of the scalar value.- * @param[in]       style           The scalar style.- *- * @returns the node id or @c 0 on error.- */--YAML_DECLARE(int)-yaml_document_add_scalar(yaml_document_t *document,-        yaml_char_t *tag, yaml_char_t *value, int length,-        yaml_scalar_style_t style);--/**- * Create a SEQUENCE node and attach it to the document.- *- * The @a style argument may be ignored by the emitter.- *- * @param[in,out]   document    A document object.- * @param[in]       tag         The sequence tag.- * @param[in]       style       The sequence style.- *- * @returns the node id or @c 0 on error.- */--YAML_DECLARE(int)-yaml_document_add_sequence(yaml_document_t *document,-        yaml_char_t *tag, yaml_sequence_style_t style);--/**- * Create a MAPPING node and attach it to the document.- *- * The @a style argument may be ignored by the emitter.- *- * @param[in,out]   document    A document object.- * @param[in]       tag         The sequence tag.- * @param[in]       style       The sequence style.- *- * @returns the node id or @c 0 on error.- */--YAML_DECLARE(int)-yaml_document_add_mapping(yaml_document_t *document,-        yaml_char_t *tag, yaml_mapping_style_t style);--/**- * Add an item to a SEQUENCE node.- *- * @param[in,out]   document    A document object.- * @param[in]       sequence    The sequence node id.- * @param[in]       item        The item node id.-*- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_document_append_sequence_item(yaml_document_t *document,-        int sequence, int item);--/**- * Add a pair of a key and a value to a MAPPING node.- *- * @param[in,out]   document    A document object.- * @param[in]       mapping     The mapping node id.- * @param[in]       key         The key node id.- * @param[in]       value       The value node id.-*- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_document_append_mapping_pair(yaml_document_t *document,-        int mapping, int key, int value);--/** @} */--/**- * @defgroup parser Parser Definitions- * @{- */--/**- * The prototype of a read handler.- *- * The read handler is called when the parser needs to read more bytes from the- * source.  The handler should write not more than @a size bytes to the @a- * buffer.  The number of written bytes should be set to the @a length variable.- *- * @param[in,out]   data        A pointer to an application data specified by- *                              yaml_parser_set_input().- * @param[out]      buffer      The buffer to write the data from the source.- * @param[in]       size        The size of the buffer.- * @param[out]      size_read   The actual number of bytes read from the source.- *- * @returns On success, the handler should return @c 1.  If the handler failed,- * the returned value should be @c 0.  On EOF, the handler should set the- * @a size_read to @c 0 and return @c 1.- */--typedef int yaml_read_handler_t(void *data, unsigned char *buffer, size_t size,-        size_t *size_read);--/**- * This structure holds information about a potential simple key.- */--typedef struct yaml_simple_key_s {-    /** Is a simple key possible? */-    int possible;--    /** Is a simple key required? */-    int required;--    /** The number of the token. */-    size_t token_number;--    /** The position mark. */-    yaml_mark_t mark;-} yaml_simple_key_t;--/**- * The states of the parser.- */-typedef enum yaml_parser_state_e {-    /** Expect STREAM-START. */-    YAML_PARSE_STREAM_START_STATE,-    /** Expect the beginning of an implicit document. */-    YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE,-    /** Expect DOCUMENT-START. */-    YAML_PARSE_DOCUMENT_START_STATE,-    /** Expect the content of a document. */-    YAML_PARSE_DOCUMENT_CONTENT_STATE,-    /** Expect DOCUMENT-END. */-    YAML_PARSE_DOCUMENT_END_STATE,-    /** Expect a block node. */-    YAML_PARSE_BLOCK_NODE_STATE,-    /** Expect a block node or indentless sequence. */-    YAML_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE,-    /** Expect a flow node. */-    YAML_PARSE_FLOW_NODE_STATE,-    /** Expect the first entry of a block sequence. */-    YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE,-    /** Expect an entry of a block sequence. */-    YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE,-    /** Expect an entry of an indentless sequence. */-    YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE,-    /** Expect the first key of a block mapping. */-    YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE,-    /** Expect a block mapping key. */-    YAML_PARSE_BLOCK_MAPPING_KEY_STATE,-    /** Expect a block mapping value. */-    YAML_PARSE_BLOCK_MAPPING_VALUE_STATE,-    /** Expect the first entry of a flow sequence. */-    YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE,-    /** Expect an entry of a flow sequence. */-    YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE,-    /** Expect a key of an ordered mapping. */-    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE,-    /** Expect a value of an ordered mapping. */-    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE,-    /** Expect the and of an ordered mapping entry. */-    YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE,-    /** Expect the first key of a flow mapping. */-    YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE,-    /** Expect a key of a flow mapping. */-    YAML_PARSE_FLOW_MAPPING_KEY_STATE,-    /** Expect a value of a flow mapping. */-    YAML_PARSE_FLOW_MAPPING_VALUE_STATE,-    /** Expect an empty value of a flow mapping. */-    YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE,-    /** Expect nothing. */-    YAML_PARSE_END_STATE-} yaml_parser_state_t;--/**- * This structure holds aliases data.- */--typedef struct yaml_alias_data_s {-    /** The anchor. */-    yaml_char_t *anchor;-    /** The node id. */-    int index;-    /** The anchor mark. */-    yaml_mark_t mark;-} yaml_alias_data_t;--/**- * The parser structure.- *- * All members are internal.  Manage the structure using the @c yaml_parser_- * family of functions.- */--typedef struct yaml_parser_s {--    /**-     * @name Error handling-     * @{-     */--    /** Error type. */-    yaml_error_type_t error;-    /** Error description. */-    const char *problem;-    /** The byte about which the problem occured. */-    size_t problem_offset;-    /** The problematic value (@c -1 is none). */-    int problem_value;-    /** The problem position. */-    yaml_mark_t problem_mark;-    /** The error context. */-    const char *context;-    /** The context position. */-    yaml_mark_t context_mark;--    /**-     * @}-     */--    /**-     * @name Reader stuff-     * @{-     */--    /** Read handler. */-    yaml_read_handler_t *read_handler;--    /** A pointer for passing to the read handler. */-    void *read_handler_data;--    /** Standard (string or file) input data. */-    union {-        /** String input data. */-        struct {-            /** The string start pointer. */-            const unsigned char *start;-            /** The string end pointer. */-            const unsigned char *end;-            /** The string current position. */-            const unsigned char *current;-        } string;--        /** File input data. */-        FILE *file;-    } input;--    /** EOF flag */-    int eof;--    /** The working buffer. */-    struct {-        /** The beginning of the buffer. */-        yaml_char_t *start;-        /** The end of the buffer. */-        yaml_char_t *end;-        /** The current position of the buffer. */-        yaml_char_t *pointer;-        /** The last filled position of the buffer. */-        yaml_char_t *last;-    } buffer;--    /* The number of unread characters in the buffer. */-    size_t unread;--    /** The raw buffer. */-    struct {-        /** The beginning of the buffer. */-        unsigned char *start;-        /** The end of the buffer. */-        unsigned char *end;-        /** The current position of the buffer. */-        unsigned char *pointer;-        /** The last filled position of the buffer. */-        unsigned char *last;-    } raw_buffer;--    /** The input encoding. */-    yaml_encoding_t encoding;--    /** The offset of the current position (in bytes). */-    size_t offset;--    /** The mark of the current position. */-    yaml_mark_t mark;--    /**-     * @}-     */--    /**-     * @name Scanner stuff-     * @{-     */--    /** Have we started to scan the input stream? */-    int stream_start_produced;--    /** Have we reached the end of the input stream? */-    int stream_end_produced;--    /** The number of unclosed '[' and '{' indicators. */-    int flow_level;--    /** The tokens queue. */-    struct {-        /** The beginning of the tokens queue. */-        yaml_token_t *start;-        /** The end of the tokens queue. */-        yaml_token_t *end;-        /** The head of the tokens queue. */-        yaml_token_t *head;-        /** The tail of the tokens queue. */-        yaml_token_t *tail;-    } tokens;--    /** The number of tokens fetched from the queue. */-    size_t tokens_parsed;--    /* Does the tokens queue contain a token ready for dequeueing. */-    int token_available;--    /** The indentation levels stack. */-    struct {-        /** The beginning of the stack. */-        int *start;-        /** The end of the stack. */-        int *end;-        /** The top of the stack. */-        int *top;-    } indents;--    /** The current indentation level. */-    int indent;--    /** May a simple key occur at the current position? */-    int simple_key_allowed;--    /** The stack of simple keys. */-    struct {-        /** The beginning of the stack. */-        yaml_simple_key_t *start;-        /** The end of the stack. */-        yaml_simple_key_t *end;-        /** The top of the stack. */-        yaml_simple_key_t *top;-    } simple_keys;--    /**-     * @}-     */--    /**-     * @name Parser stuff-     * @{-     */--    /** The parser states stack. */-    struct {-        /** The beginning of the stack. */-        yaml_parser_state_t *start;-        /** The end of the stack. */-        yaml_parser_state_t *end;-        /** The top of the stack. */-        yaml_parser_state_t *top;-    } states;--    /** The current parser state. */-    yaml_parser_state_t state;--    /** The stack of marks. */-    struct {-        /** The beginning of the stack. */-        yaml_mark_t *start;-        /** The end of the stack. */-        yaml_mark_t *end;-        /** The top of the stack. */-        yaml_mark_t *top;-    } marks;--    /** The list of TAG directives. */-    struct {-        /** The beginning of the list. */-        yaml_tag_directive_t *start;-        /** The end of the list. */-        yaml_tag_directive_t *end;-        /** The top of the list. */-        yaml_tag_directive_t *top;-    } tag_directives;--    /**-     * @}-     */--    /**-     * @name Dumper stuff-     * @{-     */--    /** The alias data. */-    struct {-        /** The beginning of the list. */-        yaml_alias_data_t *start;-        /** The end of the list. */-        yaml_alias_data_t *end;-        /** The top of the list. */-        yaml_alias_data_t *top;-    } aliases;--    /** The currently parsed document. */-    yaml_document_t *document;--    /**-     * @}-     */--} yaml_parser_t;--/**- * Initialize a parser.- *- * This function creates a new parser object.  An application is responsible- * for destroying the object using the yaml_parser_delete() function.- *- * @param[out]      parser  An empty parser object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_parser_initialize(yaml_parser_t *parser);--/**- * Destroy a parser.- *- * @param[in,out]   parser  A parser object.- */--YAML_DECLARE(void)-yaml_parser_delete(yaml_parser_t *parser);--/**- * Set a string input.- *- * Note that the @a input pointer must be valid while the @a parser object- * exists.  The application is responsible for destroing @a input after- * destroying the @a parser.- *- * @param[in,out]   parser  A parser object.- * @param[in]       input   A source data.- * @param[in]       size    The length of the source data in bytes.- */--YAML_DECLARE(void)-yaml_parser_set_input_string(yaml_parser_t *parser,-        const unsigned char *input, size_t size);--/**- * Set a file input.- *- * @a file should be a file object open for reading.  The application is- * responsible for closing the @a file.- *- * @param[in,out]   parser  A parser object.- * @param[in]       file    An open file.- */--YAML_DECLARE(void)-yaml_parser_set_input_file(yaml_parser_t *parser, FILE *file);--/**- * Set a generic input handler.- *- * @param[in,out]   parser  A parser object.- * @param[in]       handler A read handler.- * @param[in]       data    Any application data for passing to the read- *                          handler.- */--YAML_DECLARE(void)-yaml_parser_set_input(yaml_parser_t *parser,-        yaml_read_handler_t *handler, void *data);--/**- * Set the source encoding.- *- * @param[in,out]   parser      A parser object.- * @param[in]       encoding    The source encoding.- */--YAML_DECLARE(void)-yaml_parser_set_encoding(yaml_parser_t *parser, yaml_encoding_t encoding);--/**- * Scan the input stream and produce the next token.- *- * Call the function subsequently to produce a sequence of tokens corresponding- * to the input stream.  The initial token has the type- * @c YAML_STREAM_START_TOKEN while the ending token has the type- * @c YAML_STREAM_END_TOKEN.- *- * An application is responsible for freeing any buffers associated with the- * produced token object using the @c yaml_token_delete function.- *- * An application must not alternate the calls of yaml_parser_scan() with the- * calls of yaml_parser_parse() or yaml_parser_load(). Doing this will break- * the parser.- *- * @param[in,out]   parser      A parser object.- * @param[out]      token       An empty token object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token);--/**- * Parse the input stream and produce the next parsing event.- *- * Call the function subsequently to produce a sequence of events corresponding- * to the input stream.  The initial event has the type- * @c YAML_STREAM_START_EVENT while the ending event has the type- * @c YAML_STREAM_END_EVENT.- *- * An application is responsible for freeing any buffers associated with the- * produced event object using the yaml_event_delete() function.- *- * An application must not alternate the calls of yaml_parser_parse() with the- * calls of yaml_parser_scan() or yaml_parser_load(). Doing this will break the- * parser.- *- * @param[in,out]   parser      A parser object.- * @param[out]      event       An empty event object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event);--/**- * Parse the input stream and produce the next YAML document.- *- * Call this function subsequently to produce a sequence of documents- * constituting the input stream.- *- * If the produced document has no root node, it means that the document- * end has been reached.- *- * An application is responsible for freeing any data associated with the- * produced document object using the yaml_document_delete() function.- *- * An application must not alternate the calls of yaml_parser_load() with the- * calls of yaml_parser_scan() or yaml_parser_parse(). Doing this will break- * the parser.- *- * @param[in,out]   parser      A parser object.- * @param[out]      document    An empty document object.- *- * @return @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document);--/** @} */--/**- * @defgroup emitter Emitter Definitions- * @{- */--/**- * The prototype of a write handler.- *- * The write handler is called when the emitter needs to flush the accumulated- * characters to the output.  The handler should write @a size bytes of the- * @a buffer to the output.- *- * @param[in,out]   data        A pointer to an application data specified by- *                              yaml_emitter_set_output().- * @param[in]       buffer      The buffer with bytes to be written.- * @param[in]       size        The size of the buffer.- *- * @returns On success, the handler should return @c 1.  If the handler failed,- * the returned value should be @c 0.- */--typedef int yaml_write_handler_t(void *data, unsigned char *buffer, size_t size);--/** The emitter states. */-typedef enum yaml_emitter_state_e {-    /** Expect STREAM-START. */-    YAML_EMIT_STREAM_START_STATE,-    /** Expect the first DOCUMENT-START or STREAM-END. */-    YAML_EMIT_FIRST_DOCUMENT_START_STATE,-    /** Expect DOCUMENT-START or STREAM-END. */-    YAML_EMIT_DOCUMENT_START_STATE,-    /** Expect the content of a document. */-    YAML_EMIT_DOCUMENT_CONTENT_STATE,-    /** Expect DOCUMENT-END. */-    YAML_EMIT_DOCUMENT_END_STATE,-    /** Expect the first item of a flow sequence. */-    YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE,-    /** Expect an item of a flow sequence. */-    YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE,-    /** Expect the first key of a flow mapping. */-    YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE,-    /** Expect a key of a flow mapping. */-    YAML_EMIT_FLOW_MAPPING_KEY_STATE,-    /** Expect a value for a simple key of a flow mapping. */-    YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE,-    /** Expect a value of a flow mapping. */-    YAML_EMIT_FLOW_MAPPING_VALUE_STATE,-    /** Expect the first item of a block sequence. */-    YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE,-    /** Expect an item of a block sequence. */-    YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE,-    /** Expect the first key of a block mapping. */-    YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE,-    /** Expect the key of a block mapping. */-    YAML_EMIT_BLOCK_MAPPING_KEY_STATE,-    /** Expect a value for a simple key of a block mapping. */-    YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE,-    /** Expect a value of a block mapping. */-    YAML_EMIT_BLOCK_MAPPING_VALUE_STATE,-    /** Expect nothing. */-    YAML_EMIT_END_STATE-} yaml_emitter_state_t;--/**- * The emitter structure.- *- * All members are internal.  Manage the structure using the @c yaml_emitter_- * family of functions.- */--typedef struct yaml_emitter_s {--    /**-     * @name Error handling-     * @{-     */--    /** Error type. */-    yaml_error_type_t error;-    /** Error description. */-    const char *problem;--    /**-     * @}-     */--    /**-     * @name Writer stuff-     * @{-     */--    /** Write handler. */-    yaml_write_handler_t *write_handler;--    /** A pointer for passing to the white handler. */-    void *write_handler_data;--    /** Standard (string or file) output data. */-    union {-        /** String output data. */-        struct {-            /** The buffer pointer. */-            unsigned char *buffer;-            /** The buffer size. */-            size_t size;-            /** The number of written bytes. */-            size_t *size_written;-        } string;--        /** File output data. */-        FILE *file;-    } output;--    /** The working buffer. */-    struct {-        /** The beginning of the buffer. */-        yaml_char_t *start;-        /** The end of the buffer. */-        yaml_char_t *end;-        /** The current position of the buffer. */-        yaml_char_t *pointer;-        /** The last filled position of the buffer. */-        yaml_char_t *last;-    } buffer;--    /** The raw buffer. */-    struct {-        /** The beginning of the buffer. */-        unsigned char *start;-        /** The end of the buffer. */-        unsigned char *end;-        /** The current position of the buffer. */-        unsigned char *pointer;-        /** The last filled position of the buffer. */-        unsigned char *last;-    } raw_buffer;--    /** The stream encoding. */-    yaml_encoding_t encoding;--    /**-     * @}-     */--    /**-     * @name Emitter stuff-     * @{-     */--    /** If the output is in the canonical style? */-    int canonical;-    /** The number of indentation spaces. */-    int best_indent;-    /** The preferred width of the output lines. */-    int best_width;-    /** Allow unescaped non-ASCII characters? */-    int unicode;-    /** The preferred line break. */-    yaml_break_t line_break;--    /** The stack of states. */-    struct {-        /** The beginning of the stack. */-        yaml_emitter_state_t *start;-        /** The end of the stack. */-        yaml_emitter_state_t *end;-        /** The top of the stack. */-        yaml_emitter_state_t *top;-    } states;--    /** The current emitter state. */-    yaml_emitter_state_t state;--    /** The event queue. */-    struct {-        /** The beginning of the event queue. */-        yaml_event_t *start;-        /** The end of the event queue. */-        yaml_event_t *end;-        /** The head of the event queue. */-        yaml_event_t *head;-        /** The tail of the event queue. */-        yaml_event_t *tail;-    } events;--    /** The stack of indentation levels. */-    struct {-        /** The beginning of the stack. */-        int *start;-        /** The end of the stack. */-        int *end;-        /** The top of the stack. */-        int *top;-    } indents;--    /** The list of tag directives. */-    struct {-        /** The beginning of the list. */-        yaml_tag_directive_t *start;-        /** The end of the list. */-        yaml_tag_directive_t *end;-        /** The top of the list. */-        yaml_tag_directive_t *top;-    } tag_directives;--    /** The current indentation level. */-    int indent;--    /** The current flow level. */-    int flow_level;--    /** Is it the document root context? */-    int root_context;-    /** Is it a sequence context? */-    int sequence_context;-    /** Is it a mapping context? */-    int mapping_context;-    /** Is it a simple mapping key context? */-    int simple_key_context;--    /** The current line. */-    int line;-    /** The current column. */-    int column;-    /** If the last character was a whitespace? */-    int whitespace;-    /** If the last character was an indentation character (' ', '-', '?', ':')? */-    int indention;-    /** If an explicit document end is required? */-    int open_ended;--    /** Anchor analysis. */-    struct {-        /** The anchor value. */-        yaml_char_t *anchor;-        /** The anchor length. */-        size_t anchor_length;-        /** Is it an alias? */-        int alias;-    } anchor_data;--    /** Tag analysis. */-    struct {-        /** The tag handle. */-        yaml_char_t *handle;-        /** The tag handle length. */-        size_t handle_length;-        /** The tag suffix. */-        yaml_char_t *suffix;-        /** The tag suffix length. */-        size_t suffix_length;-    } tag_data;--    /** Scalar analysis. */-    struct {-        /** The scalar value. */-        yaml_char_t *value;-        /** The scalar length. */-        size_t length;-        /** Does the scalar contain line breaks? */-        int multiline;-        /** Can the scalar be expessed in the flow plain style? */-        int flow_plain_allowed;-        /** Can the scalar be expressed in the block plain style? */-        int block_plain_allowed;-        /** Can the scalar be expressed in the single quoted style? */-        int single_quoted_allowed;-        /** Can the scalar be expressed in the literal or folded styles? */-        int block_allowed;-        /** The output style. */-        yaml_scalar_style_t style;-    } scalar_data;--    /**-     * @}-     */--    /**-     * @name Dumper stuff-     * @{-     */--    /** If the stream was already opened? */-    int opened;-    /** If the stream was already closed? */-    int closed;--    /** The information associated with the document nodes. */-    struct {-        /** The number of references. */-        int references;-        /** The anchor id. */-        int anchor;-        /** If the node has been emitted? */-        int serialized;-    } *anchors;--    /** The last assigned anchor id. */-    int last_anchor_id;--    /** The currently emitted document. */-    yaml_document_t *document;--    /**-     * @}-     */--} yaml_emitter_t;--/**- * Initialize an emitter.- *- * This function creates a new emitter object.  An application is responsible- * for destroying the object using the yaml_emitter_delete() function.- *- * @param[out]      emitter     An empty parser object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_emitter_initialize(yaml_emitter_t *emitter);--/**- * Destroy an emitter.- *- * @param[in,out]   emitter     An emitter object.- */--YAML_DECLARE(void)-yaml_emitter_delete(yaml_emitter_t *emitter);--/**- * Set a string output.- *- * The emitter will write the output characters to the @a output buffer of the- * size @a size.  The emitter will set @a size_written to the number of written- * bytes.  If the buffer is smaller than required, the emitter produces the- * YAML_WRITE_ERROR error.- *- * @param[in,out]   emitter         An emitter object.- * @param[in]       output          An output buffer.- * @param[in]       size            The buffer size.- * @param[in]       size_written    The pointer to save the number of written- *                                  bytes.- */--YAML_DECLARE(void)-yaml_emitter_set_output_string(yaml_emitter_t *emitter,-        unsigned char *output, size_t size, size_t *size_written);--/**- * Set a file output.- *- * @a file should be a file object open for writing.  The application is- * responsible for closing the @a file.- *- * @param[in,out]   emitter     An emitter object.- * @param[in]       file        An open file.- */--YAML_DECLARE(void)-yaml_emitter_set_output_file(yaml_emitter_t *emitter, FILE *file);--/**- * Set a generic output handler.- *- * @param[in,out]   emitter     An emitter object.- * @param[in]       handler     A write handler.- * @param[in]       data        Any application data for passing to the write- *                              handler.- */--YAML_DECLARE(void)-yaml_emitter_set_output(yaml_emitter_t *emitter,-        yaml_write_handler_t *handler, void *data);--/**- * Set the output encoding.- *- * @param[in,out]   emitter     An emitter object.- * @param[in]       encoding    The output encoding.- */--YAML_DECLARE(void)-yaml_emitter_set_encoding(yaml_emitter_t *emitter, yaml_encoding_t encoding);--/**- * Set if the output should be in the "canonical" format as in the YAML- * specification.- *- * @param[in,out]   emitter     An emitter object.- * @param[in]       canonical   If the output is canonical.- */--YAML_DECLARE(void)-yaml_emitter_set_canonical(yaml_emitter_t *emitter, int canonical);--/**- * Set the intendation increment.- *- * @param[in,out]   emitter     An emitter object.- * @param[in]       indent      The indentation increment (1 < . < 10).- */--YAML_DECLARE(void)-yaml_emitter_set_indent(yaml_emitter_t *emitter, int indent);--/**- * Set the preferred line width. @c -1 means unlimited.- *- * @param[in,out]   emitter     An emitter object.- * @param[in]       width       The preferred line width.- */--YAML_DECLARE(void)-yaml_emitter_set_width(yaml_emitter_t *emitter, int width);--/**- * Set if unescaped non-ASCII characters are allowed.- *- * @param[in,out]   emitter     An emitter object.- * @param[in]       unicode     If unescaped Unicode characters are allowed.- */--YAML_DECLARE(void)-yaml_emitter_set_unicode(yaml_emitter_t *emitter, int unicode);--/**- * Set the preferred line break.- *- * @param[in,out]   emitter     An emitter object.- * @param[in]       line_break  The preferred line break.- */--YAML_DECLARE(void)-yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break);--/**- * Emit an event.- *- * The event object may be generated using the yaml_parser_parse() function.- * The emitter takes the responsibility for the event object and destroys its- * content after it is emitted. The event object is destroyed even if the- * function fails.- *- * @param[in,out]   emitter     An emitter object.- * @param[in,out]   event       An event object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event);--/**- * Start a YAML stream.- *- * This function should be used before yaml_emitter_dump() is called.- *- * @param[in,out]   emitter     An emitter object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_emitter_open(yaml_emitter_t *emitter);--/**- * Finish a YAML stream.- *- * This function should be used after yaml_emitter_dump() is called.- *- * @param[in,out]   emitter     An emitter object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_emitter_close(yaml_emitter_t *emitter);--/**- * Emit a YAML document.- *- * The documen object may be generated using the yaml_parser_load() function- * or the yaml_document_initialize() function.  The emitter takes the- * responsibility for the document object and destroys its content after- * it is emitted. The document object is destroyed even if the function fails.- *- * @param[in,out]   emitter     An emitter object.- * @param[in,out]   document    A document object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document);--/**- * Flush the accumulated characters to the output.- *- * @param[in,out]   emitter     An emitter object.- *- * @returns @c 1 if the function succeeded, @c 0 on error.- */--YAML_DECLARE(int)-yaml_emitter_flush(yaml_emitter_t *emitter);--/** @} */--#ifdef __cplusplus-}-#endif--#endif /* #ifndef YAML_H */-
− libyaml/yaml_private.h 
@@ -1,690 +0,0 @@-#if HAVE_CONFIG_H-#include <config.h>-#endif--#include <yaml.h>--#include <assert.h>-#include <limits.h>-#include <stddef.h>--/*- * Memory management.- */--YAML_DECLARE(void *)-yaml_malloc(size_t size);--YAML_DECLARE(void *)-yaml_realloc(void *ptr, size_t size);--YAML_DECLARE(void)-yaml_free(void *ptr);--YAML_DECLARE(yaml_char_t *)-yaml_strdup(const yaml_char_t *);--/*- * Reader: Ensure that the buffer contains at least `length` characters.- */--YAML_DECLARE(int)-yaml_parser_update_buffer(yaml_parser_t *parser, size_t length);--/*- * Scanner: Ensure that the token stack contains at least one token ready.- */--YAML_DECLARE(int)-yaml_parser_fetch_more_tokens(yaml_parser_t *parser);--/*- * The size of the input raw buffer.- */--#define INPUT_RAW_BUFFER_SIZE   16384--/*- * The size of the input buffer.- *- * It should be possible to decode the whole raw buffer.- */--#define INPUT_BUFFER_SIZE       (INPUT_RAW_BUFFER_SIZE*3)--/*- * The size of the output buffer.- */--#define OUTPUT_BUFFER_SIZE      16384--/*- * The size of the output raw buffer.- *- * It should be possible to encode the whole output buffer.- */--#define OUTPUT_RAW_BUFFER_SIZE  (OUTPUT_BUFFER_SIZE*2+2)--/*- * The maximum size of a YAML input file.- * This used to be PTRDIFF_MAX, but that's not entirely portable- * because stdint.h isn't available on all platforms.- * It is not entirely clear why this isn't the maximum value- * that can fit into the parser->offset field.- */--#define MAX_FILE_SIZE (~(size_t)0 / 2)---/*- * The size of other stacks and queues.- */--#define INITIAL_STACK_SIZE  16-#define INITIAL_QUEUE_SIZE  16-#define INITIAL_STRING_SIZE 16--/*- * Buffer management.- */--#define BUFFER_INIT(context,buffer,size)                                        \-  (((buffer).start = (yaml_char_t *)yaml_malloc(size)) ?                        \-        ((buffer).last = (buffer).pointer = (buffer).start,                     \-         (buffer).end = (buffer).start+(size),                                  \-         1) :                                                                   \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--#define BUFFER_DEL(context,buffer)                                              \-    (yaml_free((buffer).start),                                                 \-     (buffer).start = (buffer).pointer = (buffer).end = 0)--/*- * String management.- */--typedef struct {-    yaml_char_t *start;-    yaml_char_t *end;-    yaml_char_t *pointer;-} yaml_string_t;--YAML_DECLARE(int)-yaml_string_extend(yaml_char_t **start,-        yaml_char_t **pointer, yaml_char_t **end);--YAML_DECLARE(int)-yaml_string_join(-        yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end,-        yaml_char_t **b_start, yaml_char_t **b_pointer, yaml_char_t **b_end);--#define NULL_STRING { NULL, NULL, NULL }--#define STRING(string,length)   { (string), (string)+(length), (string) }--#define STRING_ASSIGN(value,string,length)                                      \-    ((value).start = (string),                                                  \-     (value).end = (string)+(length),                                           \-     (value).pointer = (string))--#define STRING_INIT(context,string,size)                                        \-    (((string).start = YAML_MALLOC(size)) ?                                     \-        ((string).pointer = (string).start,                                     \-         (string).end = (string).start+(size),                                  \-         memset((string).start, 0, (size)),                                     \-         1) :                                                                   \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--#define STRING_DEL(context,string)                                              \-    (yaml_free((string).start),                                                 \-     (string).start = (string).pointer = (string).end = 0)--#define STRING_EXTEND(context,string)                                           \-    ((((string).pointer+5 < (string).end)                                       \-        || yaml_string_extend(&(string).start,                                  \-            &(string).pointer, &(string).end)) ?                                \-         1 :                                                                    \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--#define CLEAR(context,string)                                                   \-    ((string).pointer = (string).start,                                         \-     memset((string).start, 0, (string).end-(string).start))--#define JOIN(context,string_a,string_b)                                         \-    ((yaml_string_join(&(string_a).start, &(string_a).pointer,                  \-                       &(string_a).end, &(string_b).start,                      \-                       &(string_b).pointer, &(string_b).end)) ?                 \-        ((string_b).pointer = (string_b).start,                                 \-         1) :                                                                   \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--/*- * String check operations.- */--/*- * Check the octet at the specified position.- */--#define CHECK_AT(string,octet,offset)                                           \-    ((string).pointer[offset] == (yaml_char_t)(octet))--/*- * Check the current octet in the buffer.- */--#define CHECK(string,octet) CHECK_AT((string),(octet),0)--/*- * Check if the character at the specified position is an alphabetical- * character, a digit, '_', or '-'.- */--#define IS_ALPHA_AT(string,offset)                                              \-     (((string).pointer[offset] >= (yaml_char_t) '0' &&                         \-       (string).pointer[offset] <= (yaml_char_t) '9') ||                        \-      ((string).pointer[offset] >= (yaml_char_t) 'A' &&                         \-       (string).pointer[offset] <= (yaml_char_t) 'Z') ||                        \-      ((string).pointer[offset] >= (yaml_char_t) 'a' &&                         \-       (string).pointer[offset] <= (yaml_char_t) 'z') ||                        \-      (string).pointer[offset] == '_' ||                                        \-      (string).pointer[offset] == '-')--#define IS_ALPHA(string)    IS_ALPHA_AT((string),0)--/*- * Check if the character at the specified position is a digit.- */--#define IS_DIGIT_AT(string,offset)                                              \-     (((string).pointer[offset] >= (yaml_char_t) '0' &&                         \-       (string).pointer[offset] <= (yaml_char_t) '9'))--#define IS_DIGIT(string)    IS_DIGIT_AT((string),0)--/*- * Get the value of a digit.- */--#define AS_DIGIT_AT(string,offset)                                              \-     ((string).pointer[offset] - (yaml_char_t) '0')--#define AS_DIGIT(string)    AS_DIGIT_AT((string),0)--/*- * Check if the character at the specified position is a hex-digit.- */--#define IS_HEX_AT(string,offset)                                                \-     (((string).pointer[offset] >= (yaml_char_t) '0' &&                         \-       (string).pointer[offset] <= (yaml_char_t) '9') ||                        \-      ((string).pointer[offset] >= (yaml_char_t) 'A' &&                         \-       (string).pointer[offset] <= (yaml_char_t) 'F') ||                        \-      ((string).pointer[offset] >= (yaml_char_t) 'a' &&                         \-       (string).pointer[offset] <= (yaml_char_t) 'f'))--#define IS_HEX(string)    IS_HEX_AT((string),0)--/*- * Get the value of a hex-digit.- */--#define AS_HEX_AT(string,offset)                                                \-      (((string).pointer[offset] >= (yaml_char_t) 'A' &&                        \-        (string).pointer[offset] <= (yaml_char_t) 'F') ?                        \-       ((string).pointer[offset] - (yaml_char_t) 'A' + 10) :                    \-       ((string).pointer[offset] >= (yaml_char_t) 'a' &&                        \-        (string).pointer[offset] <= (yaml_char_t) 'f') ?                        \-       ((string).pointer[offset] - (yaml_char_t) 'a' + 10) :                    \-       ((string).pointer[offset] - (yaml_char_t) '0'))--#define AS_HEX(string)  AS_HEX_AT((string),0)--/*- * Check if the character is ASCII.- */--#define IS_ASCII_AT(string,offset)                                              \-    ((string).pointer[offset] <= (yaml_char_t) '\x7F')--#define IS_ASCII(string)    IS_ASCII_AT((string),0)--/*- * Check if the character can be printed unescaped.- */--#define IS_PRINTABLE_AT(string,offset)                                          \-    (((string).pointer[offset] == 0x0A)         /* . == #x0A */                 \-     || ((string).pointer[offset] >= 0x20       /* #x20 <= . <= #x7E */         \-         && (string).pointer[offset] <= 0x7E)                                   \-     || ((string).pointer[offset] == 0xC2       /* #0xA0 <= . <= #xD7FF */      \-         && (string).pointer[offset+1] >= 0xA0)                                 \-     || ((string).pointer[offset] > 0xC2                                        \-         && (string).pointer[offset] < 0xED)                                    \-     || ((string).pointer[offset] == 0xED                                       \-         && (string).pointer[offset+1] < 0xA0)                                  \-     || ((string).pointer[offset] == 0xEE)                                      \-     || ((string).pointer[offset] == 0xEF      /* #xE000 <= . <= #xFFFD */      \-         && !((string).pointer[offset+1] == 0xBB        /* && . != #xFEFF */    \-             && (string).pointer[offset+2] == 0xBF)                             \-         && !((string).pointer[offset+1] == 0xBF                                \-             && ((string).pointer[offset+2] == 0xBE                             \-                 || (string).pointer[offset+2] == 0xBF))))--#define IS_PRINTABLE(string)    IS_PRINTABLE_AT((string),0)--/*- * Check if the character at the specified position is NUL.- */--#define IS_Z_AT(string,offset)    CHECK_AT((string),'\0',(offset))--#define IS_Z(string)    IS_Z_AT((string),0)--/*- * Check if the character at the specified position is BOM.- */--#define IS_BOM_AT(string,offset)                                                \-     (CHECK_AT((string),'\xEF',(offset))                                        \-      && CHECK_AT((string),'\xBB',(offset)+1)                                   \-      && CHECK_AT((string),'\xBF',(offset)+2))  /* BOM (#xFEFF) */--#define IS_BOM(string)  IS_BOM_AT(string,0)--/*- * Check if the character at the specified position is space.- */--#define IS_SPACE_AT(string,offset)  CHECK_AT((string),' ',(offset))--#define IS_SPACE(string)    IS_SPACE_AT((string),0)--/*- * Check if the character at the specified position is tab.- */--#define IS_TAB_AT(string,offset)    CHECK_AT((string),'\t',(offset))--#define IS_TAB(string)  IS_TAB_AT((string),0)--/*- * Check if the character at the specified position is blank (space or tab).- */--#define IS_BLANK_AT(string,offset)                                              \-    (IS_SPACE_AT((string),(offset)) || IS_TAB_AT((string),(offset)))--#define IS_BLANK(string)    IS_BLANK_AT((string),0)--/*- * Check if the character at the specified position is a line break.- */--#define IS_BREAK_AT(string,offset)                                              \-    (CHECK_AT((string),'\r',(offset))               /* CR (#xD)*/               \-     || CHECK_AT((string),'\n',(offset))            /* LF (#xA) */              \-     || (CHECK_AT((string),'\xC2',(offset))                                     \-         && CHECK_AT((string),'\x85',(offset)+1))   /* NEL (#x85) */            \-     || (CHECK_AT((string),'\xE2',(offset))                                     \-         && CHECK_AT((string),'\x80',(offset)+1)                                \-         && CHECK_AT((string),'\xA8',(offset)+2))   /* LS (#x2028) */           \-     || (CHECK_AT((string),'\xE2',(offset))                                     \-         && CHECK_AT((string),'\x80',(offset)+1)                                \-         && CHECK_AT((string),'\xA9',(offset)+2)))  /* PS (#x2029) */--#define IS_BREAK(string)    IS_BREAK_AT((string),0)--#define IS_CRLF_AT(string,offset)                                               \-     (CHECK_AT((string),'\r',(offset)) && CHECK_AT((string),'\n',(offset)+1))--#define IS_CRLF(string) IS_CRLF_AT((string),0)--/*- * Check if the character is a line break or NUL.- */--#define IS_BREAKZ_AT(string,offset)                                             \-    (IS_BREAK_AT((string),(offset)) || IS_Z_AT((string),(offset)))--#define IS_BREAKZ(string)   IS_BREAKZ_AT((string),0)--/*- * Check if the character is a line break, space, or NUL.- */--#define IS_SPACEZ_AT(string,offset)                                             \-    (IS_SPACE_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset)))--#define IS_SPACEZ(string)   IS_SPACEZ_AT((string),0)--/*- * Check if the character is a line break, space, tab, or NUL.- */--#define IS_BLANKZ_AT(string,offset)                                             \-    (IS_BLANK_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset)))--#define IS_BLANKZ(string)   IS_BLANKZ_AT((string),0)--/*- * Determine the width of the character.- */--#define WIDTH_AT(string,offset)                                                 \-     (((string).pointer[offset] & 0x80) == 0x00 ? 1 :                           \-      ((string).pointer[offset] & 0xE0) == 0xC0 ? 2 :                           \-      ((string).pointer[offset] & 0xF0) == 0xE0 ? 3 :                           \-      ((string).pointer[offset] & 0xF8) == 0xF0 ? 4 : 0)--#define WIDTH(string)   WIDTH_AT((string),0)--/*- * Move the string pointer to the next character.- */--#define MOVE(string)    ((string).pointer += WIDTH((string)))--/*- * Copy a character and move the pointers of both strings.- */--#define COPY(string_a,string_b)                                                 \-    ((*(string_b).pointer & 0x80) == 0x00 ?                                     \-     (*((string_a).pointer++) = *((string_b).pointer++)) :                      \-     (*(string_b).pointer & 0xE0) == 0xC0 ?                                     \-     (*((string_a).pointer++) = *((string_b).pointer++),                        \-      *((string_a).pointer++) = *((string_b).pointer++)) :                      \-     (*(string_b).pointer & 0xF0) == 0xE0 ?                                     \-     (*((string_a).pointer++) = *((string_b).pointer++),                        \-      *((string_a).pointer++) = *((string_b).pointer++),                        \-      *((string_a).pointer++) = *((string_b).pointer++)) :                      \-     (*(string_b).pointer & 0xF8) == 0xF0 ?                                     \-     (*((string_a).pointer++) = *((string_b).pointer++),                        \-      *((string_a).pointer++) = *((string_b).pointer++),                        \-      *((string_a).pointer++) = *((string_b).pointer++),                        \-      *((string_a).pointer++) = *((string_b).pointer++)) : 0)--/*- * Stack and queue management.- */--YAML_DECLARE(int)-yaml_stack_extend(void **start, void **top, void **end);--YAML_DECLARE(int)-yaml_queue_extend(void **start, void **head, void **tail, void **end);--#define STACK_INIT(context,stack,type)                                     \-  (((stack).start = (type)yaml_malloc(INITIAL_STACK_SIZE*sizeof(*(stack).start))) ? \-        ((stack).top = (stack).start,                                           \-         (stack).end = (stack).start+INITIAL_STACK_SIZE,                        \-         1) :                                                                   \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--#define STACK_DEL(context,stack)                                                \-    (yaml_free((stack).start),                                                  \-     (stack).start = (stack).top = (stack).end = 0)--#define STACK_EMPTY(context,stack)                                              \-    ((stack).start == (stack).top)--#define STACK_LIMIT(context,stack,size)                                         \-    ((stack).top - (stack).start < (size) ?                                     \-        1 :                                                                     \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--#define PUSH(context,stack,value)                                               \-    (((stack).top != (stack).end                                                \-      || yaml_stack_extend((void **)&(stack).start,                             \-              (void **)&(stack).top, (void **)&(stack).end)) ?                  \-        (*((stack).top++) = value,                                              \-         1) :                                                                   \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--#define POP(context,stack)                                                      \-    (*(--(stack).top))--#define QUEUE_INIT(context,queue,size,type)                                     \-  (((queue).start = (type)yaml_malloc((size)*sizeof(*(queue).start))) ?         \-        ((queue).head = (queue).tail = (queue).start,                           \-         (queue).end = (queue).start+(size),                                    \-         1) :                                                                   \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--#define QUEUE_DEL(context,queue)                                                \-    (yaml_free((queue).start),                                                  \-     (queue).start = (queue).head = (queue).tail = (queue).end = 0)--#define QUEUE_EMPTY(context,queue)                                              \-    ((queue).head == (queue).tail)--#define ENQUEUE(context,queue,value)                                            \-    (((queue).tail != (queue).end                                               \-      || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head,     \-            (void **)&(queue).tail, (void **)&(queue).end)) ?                   \-        (*((queue).tail++) = value,                                             \-         1) :                                                                   \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--#define DEQUEUE(context,queue)                                                  \-    (*((queue).head++))--#define QUEUE_INSERT(context,queue,index,value)                                 \-    (((queue).tail != (queue).end                                               \-      || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head,     \-            (void **)&(queue).tail, (void **)&(queue).end)) ?                   \-        (memmove((queue).head+(index)+1,(queue).head+(index),                   \-            ((queue).tail-(queue).head-(index))*sizeof(*(queue).start)),        \-         *((queue).head+(index)) = value,                                       \-         (queue).tail++,                                                        \-         1) :                                                                   \-        ((context)->error = YAML_MEMORY_ERROR,                                  \-         0))--/*- * Token initializers.- */--#define TOKEN_INIT(token,token_type,token_start_mark,token_end_mark)            \-    (memset(&(token), 0, sizeof(yaml_token_t)),                                 \-     (token).type = (token_type),                                               \-     (token).start_mark = (token_start_mark),                                   \-     (token).end_mark = (token_end_mark))--#define STREAM_START_TOKEN_INIT(token,token_encoding,start_mark,end_mark)       \-    (TOKEN_INIT((token),YAML_STREAM_START_TOKEN,(start_mark),(end_mark)),       \-     (token).data.stream_start.encoding = (token_encoding))--#define STREAM_END_TOKEN_INIT(token,start_mark,end_mark)                        \-    (TOKEN_INIT((token),YAML_STREAM_END_TOKEN,(start_mark),(end_mark)))--#define ALIAS_TOKEN_INIT(token,token_value,start_mark,end_mark)                 \-    (TOKEN_INIT((token),YAML_ALIAS_TOKEN,(start_mark),(end_mark)),              \-     (token).data.alias.value = (token_value))--#define ANCHOR_TOKEN_INIT(token,token_value,start_mark,end_mark)                \-    (TOKEN_INIT((token),YAML_ANCHOR_TOKEN,(start_mark),(end_mark)),             \-     (token).data.anchor.value = (token_value))--#define TAG_TOKEN_INIT(token,token_handle,token_suffix,start_mark,end_mark)     \-    (TOKEN_INIT((token),YAML_TAG_TOKEN,(start_mark),(end_mark)),                \-     (token).data.tag.handle = (token_handle),                                  \-     (token).data.tag.suffix = (token_suffix))--#define SCALAR_TOKEN_INIT(token,token_value,token_length,token_style,start_mark,end_mark)   \-    (TOKEN_INIT((token),YAML_SCALAR_TOKEN,(start_mark),(end_mark)),             \-     (token).data.scalar.value = (token_value),                                 \-     (token).data.scalar.length = (token_length),                               \-     (token).data.scalar.style = (token_style))--#define VERSION_DIRECTIVE_TOKEN_INIT(token,token_major,token_minor,start_mark,end_mark)     \-    (TOKEN_INIT((token),YAML_VERSION_DIRECTIVE_TOKEN,(start_mark),(end_mark)),  \-     (token).data.version_directive.major = (token_major),                      \-     (token).data.version_directive.minor = (token_minor))--#define TAG_DIRECTIVE_TOKEN_INIT(token,token_handle,token_prefix,start_mark,end_mark)       \-    (TOKEN_INIT((token),YAML_TAG_DIRECTIVE_TOKEN,(start_mark),(end_mark)),      \-     (token).data.tag_directive.handle = (token_handle),                        \-     (token).data.tag_directive.prefix = (token_prefix))--/*- * Event initializers.- */--#define EVENT_INIT(event,event_type,event_start_mark,event_end_mark)            \-    (memset(&(event), 0, sizeof(yaml_event_t)),                                 \-     (event).type = (event_type),                                               \-     (event).start_mark = (event_start_mark),                                   \-     (event).end_mark = (event_end_mark))--#define STREAM_START_EVENT_INIT(event,event_encoding,start_mark,end_mark)       \-    (EVENT_INIT((event),YAML_STREAM_START_EVENT,(start_mark),(end_mark)),       \-     (event).data.stream_start.encoding = (event_encoding))--#define STREAM_END_EVENT_INIT(event,start_mark,end_mark)                        \-    (EVENT_INIT((event),YAML_STREAM_END_EVENT,(start_mark),(end_mark)))--#define DOCUMENT_START_EVENT_INIT(event,event_version_directive,                \-        event_tag_directives_start,event_tag_directives_end,event_implicit,start_mark,end_mark) \-    (EVENT_INIT((event),YAML_DOCUMENT_START_EVENT,(start_mark),(end_mark)),     \-     (event).data.document_start.version_directive = (event_version_directive), \-     (event).data.document_start.tag_directives.start = (event_tag_directives_start),   \-     (event).data.document_start.tag_directives.end = (event_tag_directives_end),   \-     (event).data.document_start.implicit = (event_implicit))--#define DOCUMENT_END_EVENT_INIT(event,event_implicit,start_mark,end_mark)       \-    (EVENT_INIT((event),YAML_DOCUMENT_END_EVENT,(start_mark),(end_mark)),       \-     (event).data.document_end.implicit = (event_implicit))--#define ALIAS_EVENT_INIT(event,event_anchor,start_mark,end_mark)                \-    (EVENT_INIT((event),YAML_ALIAS_EVENT,(start_mark),(end_mark)),              \-     (event).data.alias.anchor = (event_anchor))--#define SCALAR_EVENT_INIT(event,event_anchor,event_tag,event_value,event_length,    \-        event_plain_implicit, event_quoted_implicit,event_style,start_mark,end_mark)    \-    (EVENT_INIT((event),YAML_SCALAR_EVENT,(start_mark),(end_mark)),             \-     (event).data.scalar.anchor = (event_anchor),                               \-     (event).data.scalar.tag = (event_tag),                                     \-     (event).data.scalar.value = (event_value),                                 \-     (event).data.scalar.length = (event_length),                               \-     (event).data.scalar.plain_implicit = (event_plain_implicit),               \-     (event).data.scalar.quoted_implicit = (event_quoted_implicit),             \-     (event).data.scalar.style = (event_style))--#define SEQUENCE_START_EVENT_INIT(event,event_anchor,event_tag,                 \-        event_implicit,event_style,start_mark,end_mark)                         \-    (EVENT_INIT((event),YAML_SEQUENCE_START_EVENT,(start_mark),(end_mark)),     \-     (event).data.sequence_start.anchor = (event_anchor),                       \-     (event).data.sequence_start.tag = (event_tag),                             \-     (event).data.sequence_start.implicit = (event_implicit),                   \-     (event).data.sequence_start.style = (event_style))--#define SEQUENCE_END_EVENT_INIT(event,start_mark,end_mark)                      \-    (EVENT_INIT((event),YAML_SEQUENCE_END_EVENT,(start_mark),(end_mark)))--#define MAPPING_START_EVENT_INIT(event,event_anchor,event_tag,                  \-        event_implicit,event_style,start_mark,end_mark)                         \-    (EVENT_INIT((event),YAML_MAPPING_START_EVENT,(start_mark),(end_mark)),      \-     (event).data.mapping_start.anchor = (event_anchor),                        \-     (event).data.mapping_start.tag = (event_tag),                              \-     (event).data.mapping_start.implicit = (event_implicit),                    \-     (event).data.mapping_start.style = (event_style))--#define MAPPING_END_EVENT_INIT(event,start_mark,end_mark)                       \-    (EVENT_INIT((event),YAML_MAPPING_END_EVENT,(start_mark),(end_mark)))--/*- * Document initializer.- */--#define DOCUMENT_INIT(document,document_nodes_start,document_nodes_end,         \-        document_version_directive,document_tag_directives_start,               \-        document_tag_directives_end,document_start_implicit,                    \-        document_end_implicit,document_start_mark,document_end_mark)            \-    (memset(&(document), 0, sizeof(yaml_document_t)),                           \-     (document).nodes.start = (document_nodes_start),                           \-     (document).nodes.end = (document_nodes_end),                               \-     (document).nodes.top = (document_nodes_start),                             \-     (document).version_directive = (document_version_directive),               \-     (document).tag_directives.start = (document_tag_directives_start),         \-     (document).tag_directives.end = (document_tag_directives_end),             \-     (document).start_implicit = (document_start_implicit),                     \-     (document).end_implicit = (document_end_implicit),                         \-     (document).start_mark = (document_start_mark),                             \-     (document).end_mark = (document_end_mark))--/*- * Node initializers.- */--#define NODE_INIT(node,node_type,node_tag,node_start_mark,node_end_mark)        \-    (memset(&(node), 0, sizeof(yaml_node_t)),                                   \-     (node).type = (node_type),                                                 \-     (node).tag = (node_tag),                                                   \-     (node).start_mark = (node_start_mark),                                     \-     (node).end_mark = (node_end_mark))--#define SCALAR_NODE_INIT(node,node_tag,node_value,node_length,                  \-        node_style,start_mark,end_mark)                                         \-    (NODE_INIT((node),YAML_SCALAR_NODE,(node_tag),(start_mark),(end_mark)),     \-     (node).data.scalar.value = (node_value),                                   \-     (node).data.scalar.length = (node_length),                                 \-     (node).data.scalar.style = (node_style))--#define SEQUENCE_NODE_INIT(node,node_tag,node_items_start,node_items_end,       \-        node_style,start_mark,end_mark)                                         \-    (NODE_INIT((node),YAML_SEQUENCE_NODE,(node_tag),(start_mark),(end_mark)),   \-     (node).data.sequence.items.start = (node_items_start),                     \-     (node).data.sequence.items.end = (node_items_end),                         \-     (node).data.sequence.items.top = (node_items_start),                       \-     (node).data.sequence.style = (node_style))--#define MAPPING_NODE_INIT(node,node_tag,node_pairs_start,node_pairs_end,        \-        node_style,start_mark,end_mark)                                         \-    (NODE_INIT((node),YAML_MAPPING_NODE,(node_tag),(start_mark),(end_mark)),    \-     (node).data.mapping.pairs.start = (node_pairs_start),                      \-     (node).data.mapping.pairs.end = (node_pairs_end),                          \-     (node).data.mapping.pairs.top = (node_pairs_start),                        \-     (node).data.mapping.style = (node_style))--/* Strict C compiler warning helpers */--#if defined(__clang__) || defined(__GNUC__)-#  define HASATTRIBUTE_UNUSED-#endif-#ifdef HASATTRIBUTE_UNUSED-#  define __attribute__unused__             __attribute__((__unused__))-#else-#  define __attribute__unused__-#endif--/* Shim arguments are arguments that must be included in your function,- * but serve no purpose inside.  Silence compiler warnings. */-#define SHIM(a) /*@unused@*/ a __attribute__unused__--/* UNUSED_PARAM() marks a shim argument in the body to silence compiler warnings */-#ifdef __clang__-#  define UNUSED_PARAM(a) (void)(a);-#else-#  define UNUSED_PARAM(a) /*@-noeffect*/if (0) (void)(a)/*@=noeffect*/;-#endif--#define YAML_MALLOC_STATIC(type) (type*)yaml_malloc(sizeof(type))-#define YAML_MALLOC(size)        (yaml_char_t *)yaml_malloc(size)--/* For Haskell yaml package, since we do not use the configure script */-#define YAML_VERSION_STRING "0.2.1"-#define YAML_VERSION_MAJOR 0-#define YAML_VERSION_MINOR 2-#define YAML_VERSION_PATCH 1
− src/Text/Libyaml.hs 
@@ -1,771 +0,0 @@-{-# LANGUAGE EmptyDataDecls #-}-{-# LANGUAGE ForeignFunctionInterface #-}-{-# LANGUAGE DeriveDataTypeable #-}-{-# LANGUAGE FlexibleContexts #-}-{-# LANGUAGE FlexibleInstances #-}-{-# LANGUAGE MultiParamTypeClasses #-}-{-# LANGUAGE RankNTypes #-}-{-# LANGUAGE CPP #-}-{-# LANGUAGE TypeFamilies #-}---- | Low-level, streaming YAML interface. For a higher-level interface, see--- "Data.Yaml".-module Text.Libyaml-    ( -- * The event stream-      MarkedEvent(..)-    , Event (..)-    , Style (..)-    , SequenceStyle (..)-    , MappingStyle (..)-    , Tag (..)-    , AnchorName-    , Anchor-      -- * Encoding and decoding-    , encode-    , encodeWith-    , decode-    , decodeMarked-    , encodeFile-    , decodeFile-    , decodeFileMarked-    , encodeFileWith-    , FormatOptions-    , defaultFormatOptions-    , setWidth-      -- * Error handling-    , YamlException (..)-    , YamlMark (..)-    ) where--import Prelude hiding (pi)--import Data.Bits ((.|.))-import Foreign.C-import Foreign.Ptr-import Foreign.ForeignPtr-#if MIN_VERSION_base(4,7,0)-import Foreign.ForeignPtr.Unsafe-#endif-import Foreign.Marshal.Alloc-import qualified System.Posix.Internals as Posix--#if !MIN_VERSION_base(4,8,0)-import Control.Applicative-#endif-import Control.Exception (mask_, throwIO, Exception, finally)-import Control.Monad-import Control.Monad.IO.Class-import Control.Monad.Trans.Resource-import Data.Conduit hiding (Source, Sink, Conduit)-import Data.Data--import Data.ByteString (ByteString, packCString, packCStringLen)-import qualified Data.ByteString.Char8 as B8-import qualified Data.ByteString.Internal as B-import qualified Data.ByteString.Unsafe as BU--data Event =-      EventStreamStart-    | EventStreamEnd-    | EventDocumentStart-    | EventDocumentEnd-    | EventAlias !AnchorName-    | EventScalar !ByteString !Tag !Style !Anchor-    | EventSequenceStart !Tag !SequenceStyle !Anchor-    | EventSequenceEnd-    | EventMappingStart !Tag !MappingStyle !Anchor-    | EventMappingEnd-    deriving (Show, Eq)---- | Event with start and end marks.------ @since 0.10.4.0-data MarkedEvent = MarkedEvent-    { yamlEvent     :: Event-    , yamlStartMark :: YamlMark-    , yamlEndMark   :: YamlMark-    }---- | Style for scalars - e.g. quoted / folded--- -data Style = Any-           | Plain-           | SingleQuoted-           | DoubleQuoted-           | Literal-           | Folded-           | PlainNoTag-    deriving (Show, Read, Eq, Enum, Bounded, Ord, Data, Typeable)---- | Style for sequences - e.g. block or flow--- --- @since 0.9.0-data SequenceStyle = AnySequence | BlockSequence | FlowSequence-    deriving (Show, Eq, Enum, Bounded, Ord, Data, Typeable)---- | Style for mappings - e.g. block or flow--- --- @since 0.9.0-data MappingStyle = AnyMapping | BlockMapping | FlowMapping-    deriving (Show, Eq, Enum, Bounded, Ord, Data, Typeable)--data Tag = StrTag-         | FloatTag-         | NullTag-         | BoolTag-         | SetTag-         | IntTag-         | SeqTag-         | MapTag-         | UriTag String-         | NoTag-    deriving (Show, Eq, Read, Data, Typeable)--type AnchorName = String-type Anchor = Maybe AnchorName--tagToString :: Tag -> String-tagToString StrTag = "tag:yaml.org,2002:str"-tagToString FloatTag = "tag:yaml.org,2002:float"-tagToString NullTag = "tag:yaml.org,2002:null"-tagToString BoolTag = "tag:yaml.org,2002:bool"-tagToString SetTag = "tag:yaml.org,2002:set"-tagToString IntTag = "tag:yaml.org,2002:int"-tagToString SeqTag = "tag:yaml.org,2002:seq"-tagToString MapTag = "tag:yaml.org,2002:map"-tagToString (UriTag s) = s-tagToString NoTag = ""--bsToTag :: ByteString -> Tag-bsToTag = stringToTag . B8.unpack--stringToTag :: String -> Tag-stringToTag "tag:yaml.org,2002:str" = StrTag-stringToTag "tag:yaml.org,2002:float" = FloatTag-stringToTag "tag:yaml.org,2002:null" = NullTag-stringToTag "tag:yaml.org,2002:bool" = BoolTag-stringToTag "tag:yaml.org,2002:set" = SetTag-stringToTag "tag:yaml.org,2002:int" = IntTag-stringToTag "tag:yaml.org,2002:seq" = SeqTag-stringToTag "tag:yaml.org,2002:map" = MapTag-stringToTag "" = NoTag-stringToTag s = UriTag s--data ParserStruct-type Parser = Ptr ParserStruct-parserSize :: Int-parserSize = 480--data EventRawStruct-type EventRaw = Ptr EventRawStruct-eventSize :: Int-eventSize = 104--foreign import ccall unsafe "yaml_parser_initialize"-    c_yaml_parser_initialize :: Parser -> IO CInt--foreign import ccall unsafe "yaml_parser_delete"-    c_yaml_parser_delete :: Parser -> IO ()--foreign import ccall unsafe "yaml_parser_set_input_string"-    c_yaml_parser_set_input_string :: Parser-                                   -> Ptr CUChar-                                   -> CULong-                                   -> IO ()--foreign import ccall unsafe "yaml_parser_set_input_file"-    c_yaml_parser_set_input_file :: Parser-                                 -> File-                                 -> IO ()--data MarkRawStruct-type MarkRaw = Ptr MarkRawStruct--foreign import ccall unsafe "get_mark_index"-    c_get_mark_index :: MarkRaw -> IO CULong--foreign import ccall unsafe "get_mark_line"-    c_get_mark_line :: MarkRaw -> IO CULong--foreign import ccall unsafe "get_mark_column"-    c_get_mark_column :: MarkRaw -> IO CULong--getMark :: MarkRaw -> IO YamlMark-getMark m = YamlMark-  <$> (fromIntegral <$> c_get_mark_index m)-  <*> (fromIntegral <$> c_get_mark_line m)-  <*> (fromIntegral <$> c_get_mark_column m)--data FileStruct-type File = Ptr FileStruct--#ifdef WINDOWS-foreign import ccall unsafe "_fdopen"-#else-foreign import ccall unsafe "fdopen"-#endif-    c_fdopen :: CInt-             -> Ptr CChar-             -> IO File-foreign import ccall unsafe "fclose"-    c_fclose :: File-             -> IO ()--foreign import ccall unsafe "fclose_helper"-    c_fclose_helper :: File -> IO ()--foreign import ccall unsafe "yaml_parser_parse"-    c_yaml_parser_parse :: Parser -> EventRaw -> IO CInt--foreign import ccall unsafe "yaml_event_delete"-    c_yaml_event_delete :: EventRaw -> IO ()--foreign import ccall "get_parser_error_problem"-    c_get_parser_error_problem :: Parser -> IO (Ptr CUChar)--foreign import ccall "get_parser_error_context"-    c_get_parser_error_context :: Parser -> IO (Ptr CUChar)--foreign import ccall unsafe "get_parser_error_mark"-    c_get_parser_error_mark :: Parser -> IO MarkRaw--makeString :: MonadIO m => (a -> m (Ptr CUChar)) -> a -> m String-makeString f a = do-    cchar <- castPtr `liftM` f a-    if cchar == nullPtr-        then return ""-        else liftIO $ peekCString cchar--data EventType = YamlNoEvent-               | YamlStreamStartEvent-               | YamlStreamEndEvent-               | YamlDocumentStartEvent-               | YamlDocumentEndEvent-               | YamlAliasEvent-               | YamlScalarEvent-               | YamlSequenceStartEvent-               | YamlSequenceEndEvent-               | YamlMappingStartEvent-               | YamlMappingEndEvent-               deriving (Enum,Show)--foreign import ccall unsafe "get_event_type"-    c_get_event_type :: EventRaw -> IO CInt--foreign import ccall unsafe "get_start_mark"-    c_get_start_mark :: EventRaw -> IO MarkRaw--foreign import ccall unsafe "get_end_mark"-    c_get_end_mark :: EventRaw -> IO MarkRaw--foreign import ccall unsafe "get_scalar_value"-    c_get_scalar_value :: EventRaw -> IO (Ptr CUChar)--foreign import ccall unsafe "get_scalar_length"-    c_get_scalar_length :: EventRaw -> IO CULong--foreign import ccall unsafe "get_scalar_tag"-    c_get_scalar_tag :: EventRaw -> IO (Ptr CUChar)--foreign import ccall unsafe "get_scalar_style"-    c_get_scalar_style :: EventRaw -> IO CInt--foreign import ccall unsafe "get_scalar_anchor"-    c_get_scalar_anchor :: EventRaw -> IO CString--foreign import ccall unsafe "get_sequence_start_anchor"-    c_get_sequence_start_anchor :: EventRaw -> IO CString--foreign import ccall unsafe "get_sequence_start_style"-    c_get_sequence_start_style :: EventRaw -> IO CInt--foreign import ccall unsafe "get_sequence_start_tag"-    c_get_sequence_start_tag :: EventRaw -> IO (Ptr CUChar)--foreign import ccall unsafe "get_mapping_start_anchor"-    c_get_mapping_start_anchor :: EventRaw -> IO CString--foreign import ccall unsafe "get_mapping_start_style"-    c_get_mapping_start_style :: EventRaw -> IO CInt--foreign import ccall unsafe "get_mapping_start_tag"-    c_get_mapping_start_tag :: EventRaw -> IO (Ptr CUChar)--foreign import ccall unsafe "get_alias_anchor"-    c_get_alias_anchor :: EventRaw -> IO CString--readAnchor :: (EventRaw -> IO CString) -> EventRaw -> IO Anchor-readAnchor getAnchor er = do-  yanchor <- getAnchor er-  if yanchor == nullPtr-    then return Nothing-    else Just <$> peekCString yanchor--readStyle :: (Enum a) => (EventRaw -> IO CInt) -> EventRaw -> IO a-readStyle getStyle er = toEnum . fromEnum <$> getStyle er --readTag :: (EventRaw -> IO (Ptr CUChar)) -> EventRaw -> IO Tag-readTag getTag er = bsToTag <$> (getTag er >>= packCString . castPtr) --getEvent :: EventRaw -> IO (Maybe MarkedEvent)-getEvent er = do-    et <- c_get_event_type er-    startMark <- c_get_start_mark er >>= getMark-    endMark <- c_get_end_mark er >>= getMark-    event <- case toEnum $ fromEnum et of-        YamlNoEvent -> return Nothing-        YamlStreamStartEvent -> return $ Just EventStreamStart-        YamlStreamEndEvent -> return $ Just EventStreamEnd-        YamlDocumentStartEvent -> return $ Just EventDocumentStart-        YamlDocumentEndEvent -> return $ Just EventDocumentEnd-        YamlAliasEvent -> do-            yanchor <- c_get_alias_anchor er-            anchor <- if yanchor == nullPtr-                          then error "got YamlAliasEvent with empty anchor"-                          else peekCString yanchor-            return $ Just $ EventAlias anchor-        YamlScalarEvent -> do-            yvalue <- c_get_scalar_value er-            ylen <- c_get_scalar_length er-            let yvalue' = castPtr yvalue-            let ylen' = fromEnum ylen-            bs <- packCStringLen (yvalue', ylen')-            tag <- readTag c_get_scalar_tag er-            style <- readStyle c_get_scalar_style er-            anchor <- readAnchor c_get_scalar_anchor er-            return $ Just $ EventScalar bs tag style anchor-        YamlSequenceStartEvent -> do-            tag <- readTag c_get_sequence_start_tag er-            style <- readStyle c_get_sequence_start_style er-            anchor <- readAnchor c_get_sequence_start_anchor er-            return $ Just $ EventSequenceStart tag style anchor-        YamlSequenceEndEvent -> return $ Just EventSequenceEnd-        YamlMappingStartEvent -> do-            tag <- readTag c_get_mapping_start_tag er-            style <- readStyle c_get_mapping_start_style er-            anchor <- readAnchor c_get_mapping_start_anchor er-            return $ Just $ EventMappingStart tag style anchor-        YamlMappingEndEvent -> return $ Just EventMappingEnd-    return $ (\e -> MarkedEvent e startMark endMark) <$> event---- Emitter--data EmitterStruct-type Emitter = Ptr EmitterStruct-emitterSize :: Int-emitterSize = 432--foreign import ccall unsafe "yaml_emitter_initialize"-    c_yaml_emitter_initialize :: Emitter -> IO CInt--foreign import ccall unsafe "yaml_emitter_delete"-    c_yaml_emitter_delete :: Emitter -> IO ()--data BufferStruct-type Buffer = Ptr BufferStruct-bufferSize :: Int-bufferSize = 16--foreign import ccall unsafe "buffer_init"-    c_buffer_init :: Buffer -> IO ()--foreign import ccall unsafe "get_buffer_buff"-    c_get_buffer_buff :: Buffer -> IO (Ptr CUChar)--foreign import ccall unsafe "get_buffer_used"-    c_get_buffer_used :: Buffer -> IO CULong--foreign import ccall unsafe "my_emitter_set_output"-    c_my_emitter_set_output :: Emitter -> Buffer -> IO ()--#ifndef __NO_UNICODE__-foreign import ccall unsafe "yaml_emitter_set_unicode"-    c_yaml_emitter_set_unicode :: Emitter -> CInt -> IO ()-#endif--foreign import ccall unsafe "yaml_emitter_set_output_file"-    c_yaml_emitter_set_output_file :: Emitter -> File -> IO ()--foreign import ccall unsafe "yaml_emitter_set_width"-    c_yaml_emitter_set_width :: Emitter -> CInt -> IO ()--foreign import ccall unsafe "yaml_emitter_emit"-    c_yaml_emitter_emit :: Emitter -> EventRaw -> IO CInt--foreign import ccall unsafe "yaml_stream_start_event_initialize"-    c_yaml_stream_start_event_initialize :: EventRaw -> CInt -> IO CInt--foreign import ccall unsafe "yaml_stream_end_event_initialize"-    c_yaml_stream_end_event_initialize :: EventRaw -> IO CInt--foreign import ccall unsafe "yaml_scalar_event_initialize"-    c_yaml_scalar_event_initialize-        :: EventRaw-        -> Ptr CUChar -- anchor-        -> Ptr CUChar -- tag-        -> Ptr CUChar -- value-        -> CInt       -- length-        -> CInt       -- plain_implicit-        -> CInt       -- quoted_implicit-        -> CInt       -- style-        -> IO CInt--foreign import ccall unsafe "simple_document_start"-    c_simple_document_start :: EventRaw -> IO CInt--foreign import ccall unsafe "yaml_document_end_event_initialize"-    c_yaml_document_end_event_initialize :: EventRaw -> CInt -> IO CInt--foreign import ccall unsafe "yaml_sequence_start_event_initialize"-    c_yaml_sequence_start_event_initialize-        :: EventRaw-        -> Ptr CUChar-        -> Ptr CUChar-        -> CInt-        -> CInt-        -> IO CInt--foreign import ccall unsafe "yaml_sequence_end_event_initialize"-    c_yaml_sequence_end_event_initialize :: EventRaw -> IO CInt--foreign import ccall unsafe "yaml_mapping_start_event_initialize"-    c_yaml_mapping_start_event_initialize-        :: EventRaw-        -> Ptr CUChar-        -> Ptr CUChar-        -> CInt-        -> CInt-        -> IO CInt--foreign import ccall unsafe "yaml_mapping_end_event_initialize"-    c_yaml_mapping_end_event_initialize :: EventRaw -> IO CInt--foreign import ccall unsafe "yaml_alias_event_initialize"-    c_yaml_alias_event_initialize-        :: EventRaw-        -> Ptr CUChar-        -> IO CInt--toEventRaw :: Event -> (EventRaw -> IO a) -> IO a-toEventRaw e f = allocaBytes eventSize $ \er -> do-    ret <- case e of-        EventStreamStart ->-            c_yaml_stream_start_event_initialize-                er-                0 -- YAML_ANY_ENCODING-        EventStreamEnd ->-            c_yaml_stream_end_event_initialize er-        EventDocumentStart ->-            c_simple_document_start er-        EventDocumentEnd ->-            c_yaml_document_end_event_initialize er 1-        EventScalar bs thetag style0 anchor -> do-            BU.unsafeUseAsCStringLen bs $ \(value, len) -> do-                let value' = castPtr value :: Ptr CUChar-                    len' = fromIntegral len :: CInt-                let thetag' = tagToString thetag-                withCString thetag' $ \tag' -> do-                    let (pi, style) =-                            case style0 of-                                PlainNoTag -> (1, Plain)-                                x -> (0, x)-                        style' = toEnum $ fromEnum style-                        tagP = castPtr tag'-                        qi = if null thetag' then 1 else 0-                    case anchor of-                        Nothing ->-                            c_yaml_scalar_event_initialize-                                er-                                nullPtr -- anchor-                                tagP    -- tag-                                value'  -- value-                                len'    -- length-                                pi      -- plain_implicit-                                qi      -- quoted_implicit-                                style'  -- style-                        Just anchor' ->-                            withCString anchor' $ \anchorP' -> do-                                let anchorP = castPtr anchorP'-                                c_yaml_scalar_event_initialize-                                    er-                                    anchorP -- anchor-                                    tagP    -- tag-                                    value'  -- value-                                    len'    -- length-                                    0       -- plain_implicit-                                    qi      -- quoted_implicit-                                    style'  -- style-        EventSequenceStart tag style Nothing ->-            withCString (tagToString tag) $ \tag' -> do-                let tagP = castPtr tag'-                c_yaml_sequence_start_event_initialize-                  er-                  nullPtr-                  tagP-                  1-                  (toEnum $ fromEnum style)-        EventSequenceStart tag style (Just anchor) ->-            withCString (tagToString tag) $ \tag' -> do-                let tagP = castPtr tag'-                withCString anchor $ \anchor' -> do-                    let anchorP = castPtr anchor'-                    c_yaml_sequence_start_event_initialize-                        er-                        anchorP-                        tagP-                        1-                        (toEnum $ fromEnum style)-        EventSequenceEnd ->-            c_yaml_sequence_end_event_initialize er-        EventMappingStart tag style Nothing ->-            withCString (tagToString tag) $ \tag' -> do-                let tagP = castPtr tag'-                c_yaml_mapping_start_event_initialize-                    er-                    nullPtr-                    tagP-                    1-                    (toEnum $ fromEnum style)-        EventMappingStart tag style (Just anchor) ->-            withCString (tagToString tag) $ \tag' -> do-                withCString anchor $ \anchor' -> do-                    let tagP = castPtr tag'-                    let anchorP = castPtr anchor'-                    c_yaml_mapping_start_event_initialize-                        er-                        anchorP-                        tagP-                        1-                        (toEnum $ fromEnum style)-        EventMappingEnd ->-            c_yaml_mapping_end_event_initialize er-        EventAlias anchor ->-            withCString anchor $ \anchorP' -> do-                let anchorP = castPtr anchorP'-                c_yaml_alias_event_initialize-                    er-                    anchorP-    unless (ret == 1) $ throwIO $ ToEventRawException ret-    f er--newtype ToEventRawException = ToEventRawException CInt-    deriving (Show, Typeable)-instance Exception ToEventRawException---- | Create a conduit that yields events from a bytestring.-decode :: MonadResource m => B.ByteString -> ConduitM i Event m ()-decode = mapOutput yamlEvent . decodeMarked---- | Create a conduit that yields marked events from a bytestring.------ This conduit will yield identical events to that of "decode", but also--- includes start and end marks for each event.------ @since 0.10.4.0-decodeMarked :: MonadResource m => B.ByteString -> ConduitM i MarkedEvent m ()-decodeMarked bs | B8.null bs = return ()-decodeMarked bs =-    bracketP alloc cleanup (runParser . fst)-  where-    alloc = mask_ $ do-        ptr <- mallocBytes parserSize-        res <- c_yaml_parser_initialize ptr-        if res == 0-            then do-                c_yaml_parser_delete ptr-                free ptr-                throwIO $ YamlException "Yaml out of memory"-            else do-                let (bsfptr, offset, len) = B.toForeignPtr bs-                let bsptrOrig = unsafeForeignPtrToPtr bsfptr-                let bsptr = castPtr bsptrOrig `plusPtr` offset-                c_yaml_parser_set_input_string ptr bsptr (fromIntegral len)-                return (ptr, bsfptr)-    cleanup (ptr, bsfptr) = do-        touchForeignPtr bsfptr-        c_yaml_parser_delete ptr-        free ptr---- XXX copied from GHC.IO.FD-std_flags, read_flags, output_flags, write_flags :: CInt-std_flags    = Posix.o_NOCTTY-output_flags = std_flags    .|. Posix.o_CREAT .|. Posix.o_TRUNC-read_flags   = std_flags    .|. Posix.o_RDONLY-write_flags  = output_flags .|. Posix.o_WRONLY---- | Open a C FILE* from a file path, using internal GHC API to work correctly--- on all platforms, even on non-ASCII filenames. The opening mode must be--- indicated via both 'rawOpenFlags' and 'openMode'.-openFile :: FilePath -> CInt -> String -> IO File-openFile file rawOpenFlags openMode = do-  fd <- liftIO $ Posix.withFilePath file $ \file' ->-    Posix.c_open file' rawOpenFlags 0o666-  if fd /= (-1)-    then withCString openMode $ \openMode' -> c_fdopen fd openMode'-    else return nullPtr---- | Creata a conduit that yields events from a file.-decodeFile :: MonadResource m => FilePath -> ConduitM i Event m ()-decodeFile = mapOutput yamlEvent . decodeFileMarked---- | Create a conduit that yields marked events from a file.------ This conduit will yield identical events to that of "decodeFile", but also--- includes start and end marks for each event.------ @since 0.10.4.0-decodeFileMarked :: MonadResource m => FilePath -> ConduitM i MarkedEvent m ()-decodeFileMarked file =-    bracketP alloc cleanup (runParser . fst)-  where-    alloc = mask_ $ do-        ptr <- mallocBytes parserSize-        res <- c_yaml_parser_initialize ptr-        if res == 0-            then do-                c_yaml_parser_delete ptr-                free ptr-                throwIO $ YamlException "Yaml out of memory"-            else do-                file' <- openFile file read_flags "r"-                if file' == nullPtr-                    then do-                        c_yaml_parser_delete ptr-                        free ptr-                        throwIO $ YamlException-                                $ "Yaml file not found: " ++ file-                    else do-                        c_yaml_parser_set_input_file ptr file'-                        return (ptr, file')-    cleanup (ptr, file') = do-        c_fclose_helper file'-        c_yaml_parser_delete ptr-        free ptr--runParser :: MonadResource m => Parser -> ConduitM i MarkedEvent m ()-runParser parser = do-    e <- liftIO $ parserParseOne' parser-    case e of-        Left err -> liftIO $ throwIO err-        Right Nothing -> return ()-        Right (Just ev) -> yield ev >> runParser parser--parserParseOne' :: Parser-                -> IO (Either YamlException (Maybe MarkedEvent))-parserParseOne' parser = allocaBytes eventSize $ \er -> do-    res <- liftIO $ c_yaml_parser_parse parser er-    flip finally (c_yaml_event_delete er) $-      if res == 0-        then do-          problem <- makeString c_get_parser_error_problem parser-          context <- makeString c_get_parser_error_context parser-          problemMark <- c_get_parser_error_mark parser >>= getMark-          return $ Left $ YamlParseException problem context problemMark-        else Right <$> getEvent er---- | Contains options relating to the formatting (indendation, width) of the YAML output.------ @since 0.10.2.0-data FormatOptions = FormatOptions-    { formatOptionsWidth :: Maybe Int-    }---- |--- @since 0.10.2.0-defaultFormatOptions :: FormatOptions-defaultFormatOptions = FormatOptions-    { formatOptionsWidth = Just 80 -- by default the width is set to 0 in the C code, which gets turned into 80 in yaml_emitter_emit_stream_start-    }---- | Set the maximum number of columns in the YAML output, or 'Nothing' for infinite. By default, the limit is 80 characters.------ @since 0.10.2.0-setWidth :: Maybe Int -> FormatOptions -> FormatOptions-setWidth w opts = opts { formatOptionsWidth = w }--encode :: MonadResource m => ConduitM Event o m ByteString-encode = encodeWith defaultFormatOptions---- |--- @since 0.10.2.0-encodeWith :: MonadResource m => FormatOptions -> ConduitM Event o m ByteString-encodeWith opts =-    runEmitter opts alloc close-  where-    alloc emitter = do-        fbuf <- mallocForeignPtrBytes bufferSize-        withForeignPtr fbuf c_buffer_init-        withForeignPtr fbuf $ c_my_emitter_set_output emitter-        return fbuf-    close _ fbuf = withForeignPtr fbuf $ \b -> do-        ptr' <- c_get_buffer_buff b-        len <- c_get_buffer_used b-        fptr <- newForeignPtr_ $ castPtr ptr'-        return $ B.fromForeignPtr fptr 0 $ fromIntegral len---encodeFile :: MonadResource m-           => FilePath-           -> ConduitM Event o m ()-encodeFile = encodeFileWith defaultFormatOptions---- |--- @since 0.10.2.0-encodeFileWith :: MonadResource m-           => FormatOptions-           -> FilePath-           -> ConduitM Event o m ()-encodeFileWith opts filePath =-    bracketP getFile c_fclose $ \file -> runEmitter opts (alloc file) (\u _ -> return u)-  where-    getFile = do-        file <- openFile filePath write_flags "w"-        if file == nullPtr-            then throwIO $ YamlException $ "could not open file for write: " ++ filePath-            else return file--    alloc file emitter = c_yaml_emitter_set_output_file emitter file--runEmitter :: MonadResource m-           => FormatOptions-           -> (Emitter -> IO a) -- ^ alloc-           -> (() -> a -> IO b) -- ^ close-           -> ConduitM Event o m b-runEmitter opts allocI closeI =-    bracketP alloc cleanup go-  where-    alloc = mask_ $ do-        emitter <- mallocBytes emitterSize-        res <- c_yaml_emitter_initialize emitter-        when (res == 0) $ throwIO $ YamlException "c_yaml_emitter_initialize failed"-#ifndef __NO_UNICODE__-        c_yaml_emitter_set_unicode emitter 1-#endif-        c_yaml_emitter_set_width emitter $ case formatOptionsWidth opts of-            Nothing -> -1 --infinite-            Just width -> fromIntegral width-        a <- allocI emitter-        return (emitter, a)-    cleanup (emitter, _) = do-        c_yaml_emitter_delete emitter-        free emitter--    go (emitter, a) =-        loop-      where-        loop = await >>= maybe (close ()) push--        push e = do-            _ <- liftIO $ toEventRaw e $ c_yaml_emitter_emit emitter-            loop-        close u = liftIO $ closeI u a---- | The pointer position-data YamlMark = YamlMark { yamlIndex :: Int, yamlLine :: Int, yamlColumn :: Int }-    deriving Show--data YamlException = YamlException String-                   -- | problem, context, index, position line, position column-                   | YamlParseException { yamlProblem :: String, yamlContext :: String, yamlProblemMark :: YamlMark }-    deriving (Show, Typeable)-instance Exception YamlException
yaml.cabal view
@@ -4,10 +4,10 @@ -- -- see: https://github.com/sol/hpack ----- hash: 709e1d268c9776e928f3581610b43834991bb3729a78783c205e3c01695ead9d+-- hash: 44126ede97b8c2576f72b255726cbc3a06a12e3547a02cceca6e02c4933029cc  name:           yaml-version:        0.10.4.0+version:        0.11.0.0 synopsis:       Support for parsing and rendering YAML documents. description:    README and API documentation are available at <https://www.stackage.org/package/yaml> category:       Data@@ -20,10 +20,6 @@ license-file:   LICENSE build-type:     Simple extra-source-files:-    c/helper.h-    libyaml/yaml_private.h-    libyaml/yaml.h-    libyaml/LICENSE     test/largest-string.yaml     test/json.yaml     test/resources/foo.yaml@@ -51,16 +47,6 @@   manual: False   default: True -flag no-unicode-  description: Don't enable unicode output. Instead, unicode characters will be escaped.-  manual: False-  default: False--flag system-libyaml-  description: Use the system-wide libyaml instead of the bundled copy-  manual: False-  default: False- library   exposed-modules:       Data.Yaml@@ -72,17 +58,12 @@       Data.Yaml.Parser       Data.Yaml.Pretty       Data.Yaml.TH-      Text.Libyaml   other-modules:       Paths_yaml   hs-source-dirs:       src   other-extensions: LambdaCase   ghc-options: -Wall-  include-dirs:-      c-  c-sources:-      c/helper.c   build-depends:       aeson >=0.11     , attoparsec >=0.11.3.0@@ -92,6 +73,7 @@     , containers     , directory     , filepath+    , libyaml >=0.1 && <0.2     , mtl     , resourcet >=0.3 && <1.3     , scientific@@ -103,25 +85,6 @@   if !impl(ghc >= 8.0)     build-depends:         semigroups-  if flag(no-unicode)-    cpp-options: -D__NO_UNICODE__-  if !(flag(system-libyaml))-    include-dirs:-        libyaml-    c-sources:-        libyaml/api.c-        libyaml/dumper.c-        libyaml/emitter.c-        libyaml/loader.c-        libyaml/parser.c-        libyaml/reader.c-        libyaml/scanner.c-        libyaml/writer.c-  else-    extra-libraries:-        yaml-  if os(windows)-    cpp-options: -DWINDOWS   default-language: Haskell2010  executable examples@@ -142,6 +105,7 @@     , containers     , directory     , filepath+    , libyaml >=0.1 && <0.2     , mtl     , resourcet >=0.3 && <1.3     , scientific@@ -176,6 +140,7 @@     , containers     , directory     , filepath+    , libyaml >=0.1 && <0.2     , mtl     , resourcet >=0.3 && <1.3     , scientific@@ -207,6 +172,7 @@     , containers     , directory     , filepath+    , libyaml >=0.1 && <0.2     , mtl     , resourcet >=0.3 && <1.3     , scientific@@ -247,6 +213,7 @@     , directory     , filepath     , hspec >=1.3+    , libyaml >=0.1 && <0.2     , mockery     , mtl     , raw-strings-qq