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1]) arr + JsObject obj -> Map.toList obj + + +instance Finder YamlExpression where + toList = \case + nil@YamlNull -> [("", nil)] + n@(YamlInteger _) -> [("", n)] + n@(YamlFloat _) -> [("", n)] + bool@(YamlBool _) -> [("", bool)] + str@(YamlString _) -> [("", str)] + date@(YamlDate _) -> [("", date)] + time@(YamlTime _) -> [("", time)] + dateTime@(YamlDateTime _) -> [("", dateTime)] + YamlList _ arr -> zip (show <$> [0 .. length arr - 1]) arr + YamlMap _ obj -> Map.toList obj + + +instance Finder TomlExpression where + toList = \case + nil@TomlNull -> [("", nil)] + n@(TomlInteger _) -> [("", n)] + n@(TomlFloat _) -> [("", n)] + bool@(TomlBool _) -> [("", bool)] + str@(TomlString _) -> [("", str)] + date@(TomlDate _) -> [("", date)] + time@(TomlTime _) -> [("", time)] + dateTime@(TomlDateTime _) -> [("", dateTime)] + TomlArray arr -> zip (show <$> [0 .. length arr - 1]) arr + TomlTable _ obj -> Map.toList obj diff --git a/src/Bookhound/Format/Operations/ToJson.hs b/src/Bookhound/Format/Operations/ToJson.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/Operations/ToJson.hs @@ -0,0 +1,98 @@ +module Bookhound.Format.Operations.ToJson (ToJson(..)) where + +import Bookhound.Parser (runParser) +import Bookhound.ParserCombinators (IsMatch (..), maybeWithin, (<|>), (|*)) +import Bookhound.Parsers.String (spacing) + +import Bookhound.Format.Parsers.Json (json) +import Bookhound.Format.SyntaxTrees.Json (JsExpression (..)) +import Bookhound.Format.SyntaxTrees.Toml (TomlExpression (..)) +import Bookhound.Format.SyntaxTrees.Xml (XmlExpression (..)) +import Bookhound.Format.SyntaxTrees.Yaml (YamlExpression (..)) + +import Data.Either (fromRight) +import Data.Text (pack) + +import Data.Map (Map, elems) +import qualified Data.Map as Map + + +class ToJson a where + toJson :: a -> JsExpression + + +instance {-# OVERLAPPABLE #-} ToJson JsExpression where + toJson = id + +instance ToJson XmlExpression where + + toJson XmlExpression { tagName = tag, expressions = exprs, .. } + | tag == "literal" = fromRight JsNull . runParser literalParser . + pack . head . elems $ fields + | tag == "array" = JsArray $ childExprToJson <$> exprs + | tag == "object" = JsObject . Map.fromList $ (\x -> (tagName x, childExprToJson x)) <$> + exprs + | otherwise = JsNull where + + literalParser = json <|> (JsString <$> maybeWithin spacing (isNot '<' |*)) + + childExprToJson = toJson . head . (expressions) + + +instance ToJson YamlExpression where + + toJson = \case + YamlNull -> JsNull + YamlInteger n -> JsNumber $ fromIntegral n + YamlFloat n -> JsNumber n + YamlBool bool -> JsBool bool + YamlString str -> JsString str + YamlDate date -> JsString $ show date + YamlTime time -> JsString $ show time + YamlDateTime dateTime -> JsString $ show dateTime + YamlList _ list -> JsArray $ toJson <$> list + YamlMap _ mapping -> JsObject $ toJson <$> mapping + + +instance ToJson TomlExpression where + + toJson = \case + TomlNull -> JsNull + TomlInteger n -> JsNumber $ fromIntegral n + TomlFloat n -> JsNumber n + TomlBool bool -> JsBool bool + TomlString str -> JsString str + TomlDate date -> JsString $ show date + TomlTime time -> JsString $ show time + TomlDateTime dateTime -> JsString $ show dateTime + TomlArray list -> JsArray $ toJson <$> list + TomlTable _ mapping -> JsObject $ toJson <$> mapping + + + +instance ToJson String where + toJson = JsString + +instance ToJson Char where + toJson = JsString . pure + +instance ToJson Int where + toJson = JsNumber . fromIntegral + +instance ToJson Integer where + toJson = JsNumber . fromIntegral + +instance ToJson Double where + toJson = JsNumber + +instance ToJson Bool where + toJson = JsBool + +instance ToJson a => ToJson [a] where + toJson = JsArray . fmap toJson + +instance ToJson a => ToJson (Map String a) where + toJson = JsObject . fmap toJson + +instance ToJson a => ToJson (Maybe a) where + toJson = maybe JsNull toJson diff --git a/src/Bookhound/Format/Operations/ToXml.hs b/src/Bookhound/Format/Operations/ToXml.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/Operations/ToXml.hs @@ -0,0 +1,42 @@ +{-# LANGUAGE UndecidableInstances #-} + +module Bookhound.Format.Operations.ToXml (ToXml(..)) where + +import Bookhound.Format.Operations.ToJson (ToJson (..)) +import Bookhound.Format.SyntaxTrees.Json (JsExpression (..)) +import Bookhound.Format.SyntaxTrees.Xml (XmlExpression (..), literalExpression) + +import Data.Char (toLower) +import qualified Data.Map as Map + + +class ToXml a where + toXml :: a -> XmlExpression + + +instance {-# OVERLAPPABLE #-} ToJson a => ToXml a where + toXml = toXml . toJson + +instance ToXml XmlExpression where + toXml = id + + +instance ToXml JsExpression where + + toXml = \case + JsNull -> literalExpression "null" + JsNumber n -> literalExpression $ show n + JsBool bool -> literalExpression $ toLower <$> show bool + JsString str -> literalExpression str + + JsArray arr -> XmlExpression "array" Map.empty (elemExpr <$> arr) where + + elemExpr element = XmlExpression { tagName = "elem", + fields = Map.empty, + expressions = [toXml element] } + + JsObject obj -> XmlExpression "object" Map.empty (keyValueExpr <$> Map.toList obj) where + + keyValueExpr (key, value) = XmlExpression { tagName = key, + fields = Map.empty, + expressions = [toXml value] } diff --git a/src/Bookhound/Format/Operations/ToYaml.hs b/src/Bookhound/Format/Operations/ToYaml.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/Operations/ToYaml.hs @@ -0,0 +1,34 @@ +{-# LANGUAGE UndecidableInstances #-} + +module Bookhound.Format.Operations.ToYaml (ToYaml(..)) where + +import Bookhound.Format.Operations.ToJson (ToJson (..)) +import Bookhound.Format.SyntaxTrees.Json (JsExpression (..)) +import Bookhound.Format.SyntaxTrees.Yaml (CollectionType (..), YamlExpression (..)) + +import Bookhound.Parser (runParser) +import Bookhound.Parsers.Number (intLike) + +import Data.Text (pack) + + + +class ToYaml a where + toYaml :: a -> YamlExpression + +instance {-# OVERLAPPABLE #-} ToJson a => ToYaml a where + toYaml = toYaml . toJson + +instance ToYaml YamlExpression where + toYaml = id + +instance ToYaml JsExpression where + + toYaml = \case + JsNull -> YamlNull + JsNumber n -> either (const (YamlFloat n)) YamlInteger $ + runParser intLike $ pack $ show n + JsBool bool -> YamlBool bool + JsString str -> YamlString str + JsArray arr -> YamlList Standard $ toYaml <$> arr + JsObject obj -> YamlMap Standard $ toYaml <$> obj diff --git a/src/Bookhound/Format/Parsers/Json.hs b/src/Bookhound/Format/Parsers/Json.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/Parsers/Json.hs @@ -0,0 +1,59 @@ +module Bookhound.Format.Parsers.Json (json, nil, number, bool, string, array, object) where + +import Bookhound.Parser (Parser, withError) +import Bookhound.ParserCombinators (IsMatch (..), maybeWithin, (<|>), (|*)) +import Bookhound.Parsers.Char (colon, doubleQuote) +import Bookhound.Parsers.Collections (listOf, mapOf) +import Bookhound.Parsers.Number (double) +import Bookhound.Parsers.String (spacing, withinDoubleQuotes) + +import Bookhound.Format.SyntaxTrees.Json (JsExpression (..)) + + +json :: Parser JsExpression +json = maybeWithin spacing jsValue + where + jsValue = element <|> container + + +nil :: Parser JsExpression +nil = withError "Json Null" + $ JsNull <$ is "null" + +number :: Parser JsExpression +number = withError "Json Number" + $ JsNumber <$> double + + +bool :: Parser JsExpression +bool = withError "Json Bool" + $ JsBool <$> (True <$ is "true" <|> + False <$ is "false") + + +string :: Parser JsExpression +string = withError "Json String" + $ JsString <$> text + + +array :: Parser JsExpression +array = withError "Json Array" + $ JsArray <$> listOf json + + +object :: Parser JsExpression +object = withError "Json Object" + $ JsObject <$> mapOf colon text json + + + +element :: Parser JsExpression +element = number <|> bool <|> nil <|> string + +container :: Parser JsExpression +container = array <|> object + + + +text :: Parser String +text = withinDoubleQuotes (inverse doubleQuote |*) diff --git a/src/Bookhound/Format/Parsers/Toml.hs b/src/Bookhound/Format/Parsers/Toml.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/Parsers/Toml.hs @@ -0,0 +1,139 @@ +module Bookhound.Format.Parsers.Toml (toml, nil, integer, float, bool, string, + array, inlineTable) where + +import Bookhound.Parser (Parser, withError) +import Bookhound.ParserCombinators (IsMatch (..), maybeWithin, within, (<#>), + (<|>), (>>>), (|*), (|+), (|?)) +import Bookhound.Parsers.Char (dash, digit, dot, doubleQuote, equal, + hashTag, letter, newLine, quote, + spaceOrTab, underscore, whiteSpace) +import Bookhound.Parsers.Collections (listOf, mapOf) +import Bookhound.Parsers.Number (double, hexInt, int, octInt) +import Bookhound.Parsers.String (blankLine, blankLines, spacesOrTabs, + spacing, withinDoubleQuotes, withinQuotes, + withinSquareBrackets) + +import Bookhound.Format.SyntaxTrees.Toml (TableType (..), TomlExpression (..)) + +import qualified Bookhound.Parsers.DateTime as Dt + +import qualified Data.Map as Map +import Data.Maybe (maybeToList) + + + +toml :: Parser TomlExpression +toml = maybeWithin (((pure <$> whiteSpace) <|> comment) |+) topLevelTable + + + +-- TODO: Add support for table arrays + +nil :: Parser TomlExpression +nil = withError "Toml Null" + $ TomlNull <$ is "null" + +integer :: Parser TomlExpression +integer = withError "Toml Integer" + $ TomlInteger <$> (hexInt <|> octInt <|> int) + +float :: Parser TomlExpression +float = withError "Toml Float" + $ TomlFloat <$> double + +bool :: Parser TomlExpression +bool = withError "Toml Bool" + $ TomlBool <$> (True <$ is "true" <|> + False <$ is "false") + + +dateTime :: Parser TomlExpression +dateTime = withError "Toml DateTime" + $ TomlDateTime <$> Dt.dateTime + +date :: Parser TomlExpression +date = withError "Toml Date" + $ TomlDate <$> Dt.date + +time :: Parser TomlExpression +time = withError "Toml Time" + $ TomlTime <$> Dt.time + + +string :: Parser TomlExpression +string = withError "Toml String" + $ TomlString <$> text + where + text = within (doubleQuote <#> 3) (multiline (inverse doubleQuote |*)) <|> + within (quote <#> 3) (multiline (inverse quote |*)) <|> + withinDoubleQuotes (inverse doubleQuote |*) <|> + withinQuotes (inverse quote |*) + + multiline parser = mconcat <$> (((blankLine |?) *> line parser) |*) + + line parser = is "\\" *> (whiteSpace |*) *> parser + + +array :: Parser TomlExpression +array = withError "Toml Array" + $ TomlArray <$> listOf (maybeWithin spacing tomlExpr) + + +key :: Parser String +key = keyParser >>> ((dot >>> keyParser) |*) + where + keyParser = maybeWithin spacesOrTabs $ freeText <|> + withinDoubleQuotes (inverse doubleQuote |*) <|> + withinQuotes (inverse quote |*) + + freeText = ((letter <|> digit <|> underscore <|> dash) |+) + + +inlineTable :: Parser TomlExpression +inlineTable = withError "Toml Table" + $ TomlTable Inline <$> mapOf equal key tomlExpr + + +topLevelTable :: Parser TomlExpression +topLevelTable = withError "Toml Table" + $ TomlTable TopLevel . Map.fromList <$> maybeWithin spacing tables + where + tables = do xs <- keyValueSeqParser + ys <- (tableParser |*) + pure (ys <> [("", TomlTable Standard . Map.fromList $ xs)]) + + tableParser = do k <- withinSquareBrackets key + v <- maybeWithin spacing standardTable + pure (k, v) + + standardTable = TomlTable Standard . Map.fromList <$> keyValueSeqParser + + + keyValueSeqParser = do xs <- ((keyValueParser <* (blankLine *> (blankLines |?))) |*) + x <- (keyValueParser |?) + pure (xs <> maybeToList x) + + keyValueParser = do k <- key + maybeWithin spacesOrTabs equal + v <- tomlExpr + pure (k, v) + + + +element :: Parser TomlExpression +element = dateTime <|> date <|> time <|> float <|> + integer <|> bool <|> nil <|> string + + +container :: Parser TomlExpression +container = array <|> inlineTable + + +comment :: Parser String +comment = hashTag *> (inverse newLine |+) <* newLine + + +tomlExpr :: Parser TomlExpression +tomlExpr = maybeWithin (((pure <$> spaceOrTab) <|> comment) |+) tomlValue + where + tomlValue = element <|> container diff --git a/src/Bookhound/Format/Parsers/Xml.hs b/src/Bookhound/Format/Parsers/Xml.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/Parsers/Xml.hs @@ -0,0 +1,67 @@ +module Bookhound.Format.Parsers.Xml (xml, branchExpr, leafExpr, literal) where + +import Bookhound.Parser (Parser, withError) +import Bookhound.ParserCombinators (IsMatch (..), maybeWithin, (<|>), (|*), + (|+)) +import Bookhound.Parsers.Char (doubleQuote) +import Bookhound.Parsers.String (spacing, withinAngleBrackets, + withinDoubleQuotes) + +import Bookhound.Format.SyntaxTrees.Xml (XmlExpression (..), literalExpression) + +import Data.Map (Map) +import qualified Data.Map as Map + + +xml :: Parser XmlExpression +xml = maybeWithin ((header <|> comment) |+) + $ maybeWithin spacing $ branchExpr <|> leafExpr + + + +field :: Parser (String, String) +field = withError "Xml Field" $ + (,) <$> text <* is '=' <*> quotedText + where + quotedText = withinDoubleQuotes (inverse doubleQuote |*) + + +fullTag :: Parser (String, Map String String) +fullTag = withError "Xml Tag" $ + do tag <- text + flds <- Map.fromList <$> ((spacing *> field) |*) + pure (tag, flds) + + +branchExpr :: Parser XmlExpression +branchExpr = withError "Xml Branch Expression" $ + do (tag, flds) <- withinAngleBrackets fullTag + exprs <- (xml |+) <|> literal + maybeWithin spacing (is (" tag <> ">")) + pure $ XmlExpression { tagName = tag, fields = flds, expressions = exprs } + + +literal :: Parser [XmlExpression] +literal = withError "Xml Literal" $ + pure . literalExpression <$> maybeWithin spacing (isNot '<' |*) + + +leafExpr :: Parser XmlExpression +leafExpr = withError "Xml Leaf Expression" $ + do (tag, flds) <- withinAngleBrackets (fullTag <* is '/') + pure $ XmlExpression { tagName = tag, fields = flds, expressions = [] } + + +header :: Parser String +header = maybeWithin spacing $ + is " (isNot '?' |*) <* is "?>" + + +comment :: Parser String +comment = maybeWithin spacing $ + is "" + + + +text :: Parser String +text = (noneOf ['/', '>', ' ', '='] |+) diff --git a/src/Bookhound/Format/Parsers/Yaml.hs b/src/Bookhound/Format/Parsers/Yaml.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/Parsers/Yaml.hs @@ -0,0 +1,214 @@ +module Bookhound.Format.Parsers.Yaml (yaml, nil, integer, float, bool, string, + list, mapping) where + + +import Bookhound.Parser (Parser, andThen, check, exactly, + withError) +import Bookhound.ParserCombinators (IsMatch (..), maybeWithin, (<#>), (<|>), + (>>>), (|*), (|+), (|++), (|?)) +import Bookhound.Parsers.Char (char, colon, dash, dot, doubleQuote, + hashTag, newLine, question, quote, space, + whiteSpace) +import Bookhound.Parsers.Collections (listOf, mapOf) +import Bookhound.Parsers.Number (double, hexInt, int, octInt) +import Bookhound.Parsers.String (blankLine, blankLines, spaces, + spacesOrTabs, tabs, withinDoubleQuotes, + withinQuotes) + +import Bookhound.Format.SyntaxTrees.Yaml (CollectionType (..), YamlExpression (..)) + +import qualified Bookhound.Parsers.DateTime as Dt + +import Data.List (nub) +import qualified Data.Map as Map + + + +yaml :: Parser YamlExpression +yaml = normalize `andThen` yamlWithIndent (-1) + + + + +-- TODO: Add support for anchors and aliases + +nil :: Parser YamlExpression +nil = withError "Yaml Null" + $ YamlNull <$ oneOf ["null", "Null", "NULL"] + +integer :: Parser YamlExpression +integer = withError "Yaml Integer" + $ YamlInteger <$> (hexInt <|> octInt <|> int) + +float :: Parser YamlExpression +float = withError "Yaml Float" + $ YamlFloat <$> double + +bool :: Parser YamlExpression +bool = withError "Yaml Bool" + $ YamlBool <$> (True <$ oneOf ["true", "True", "TRUE"] <|> + False <$ oneOf ["false", "False", "FALSE"]) + + +dateTime :: Parser YamlExpression +dateTime = withError "Yaml DateTime" + $ YamlDateTime <$> Dt.dateTime + +date :: Parser YamlExpression +date = withError "Yaml Date" + $ YamlDate <$> Dt.date + +time :: Parser YamlExpression +time = withError "Yaml Time" + $ YamlTime <$> Dt.time + + +string :: Int -> Parser YamlExpression +string indent = withError "Yaml String" + $ YamlString <$> text indent + + +sequential :: Parser a -> Int -> Parser [YamlExpression] +sequential sep indent = listParser + where + + listParser = indentationCheck elemParser indent + + elemParser = do n <- length <$> (space |*) + sep *> whiteSpace + elm <- yamlWithIndent n + pure (n, elm) + + +list :: Int -> Parser YamlExpression +list indent = withError "Json List" + $ (YamlList Inline <$> jsonList) + <|> (YamlList Standard <$> yamlList) + where + yamlList = sequential dash indent + jsonList = maybeWithin spacesOrTabs $ listOf $ yamlWithIndent (-1) + + +set :: Int -> Parser YamlExpression +set indent = withError "Yaml Set" + $ YamlList Standard . nub <$> sequential question indent + + +mapping :: Int -> Parser YamlExpression +mapping indent = withError "Yaml Mapping" + $ (YamlMap Inline <$> jsonMap) + <|> (YamlMap Standard <$> yamlMap) + where + yamlMap = Map.fromList <$> mapParser + jsonMap = maybeWithin spacesOrTabs $ mapOf colon (text 100) $ yamlWithIndent (-1) + + mapParser = indentationCheck keyValueParser indent + + keyValueParser = do n <- length <$> (space |*) + key <- show <$> element indent + (spacesOrTabs |?) + colon *> whiteSpace + value <- yamlWithIndent n + pure (n, (key, value)) + + + +element :: Int -> Parser YamlExpression +element indent = exactly (dateTime <|> date <|> time <|> float <|> + integer <|> bool <|> nil) <|> + string indent + +container :: Int -> Parser YamlExpression +container indent = list indent <|> mapping indent <|> set indent + + + +yamlWithIndent :: Int -> Parser YamlExpression +yamlWithIndent indent = maybeWithin ((blankLine <|> comment <|> directive <|> + docStart <|> docEnd) |+) + yamlValue + where + yamlValue = container indent <|> maybeWithin spacesOrTabs (element indent) + comment = hashTag *> (inverse newLine |+) <* newLine + directive = is "%" *> (inverse space *> (inverse newLine |+)) <* newLine + docStart = dash <#> 3 + docEnd = dot <#> 3 + + + +text :: Int -> Parser String +text indent = withinDoubleQuotes (quotedParser (inverse doubleQuote |*)) <|> + withinQuotes (quotedParser (inverse quote |*)) <|> + (is "|" *> blankLine *> plainTextParser literalLineParser) <|> + (is ">" *> blankLine *> (spacesOrTabs |?) *> plainTextParser foldingLineParser) <|> + plainTextParser foldingLineParser + where + + quotedParser parser = mconcat <$> ((snd <$> foldingLineParser parser) |*) + + plainTextParser styleParser = allowedStart >>> allowedString >>> + (indentationCheck (styleParser allowedString) indent |*) + + foldingLineParser parser = do sep <- ("\n" <$ newLine <* blankLines) <|> (" " <$ newLine) + n <- maybeWithin tabs $ length <$> (space |*) + str <- parser + pure (n, sep <> str) + + literalLineParser parser = do sep <- pure <$> newLine + n <- length <$> (space |*) + str <- parser + pure (n, sep <> replicate (n - indent) ' ' <> str) + + allowedStart = noneOf $ forbiddenChar <> ['>', '|', ':', '!'] + + allowedString = (noneOf forbiddenChar |*) + + forbiddenChar = ['\n', '#', '&', '*', ',', '?', '-', ':', '[', ']', '{', '}'] + + + +indentationCheck :: Parser (Int, a) -> Int -> Parser [a] +indentationCheck parser indent = ((snd <$> check "indentation" + (\(n, _) -> n > indent) parser) |+) + + +normalize :: Parser String +normalize = withError "Normalize Yaml" + $ (parserActions >>> normalize) <|> (char |*) + where + + parserActions = spreadDashes <|> + spreadDashKey <|> + spreadKeyDash <|> + next + + next = pure <$> char + + spreadDashes = ((<>) "- ") . genDashes <$> dashesParser + + genDashes (offset, n) = concatMap (\x -> "- " <> replicate (offset + 2 * x) ' ') + [1 .. n - 1] + + dashesParser = do offset <- length <$> (spaces |?) + n <- length <$> ((dash <* spacesOrTabs) |++) + pure (offset, n) + + + spreadDashKey = (\(offset, key) -> replicate offset ' ' <> "- " <> + replicate (offset + 2) ' ' <> key <> ": ") + <$> dashKeyParser + + dashKeyParser = do offset <- length <$> (spaces |?) + dash <* spacesOrTabs + key <- text 100 <* maybeWithin spacesOrTabs colon + pure (offset, key) + + + spreadKeyDash = (\(offset, key) -> replicate offset ' ' <> key <> ": " <> + replicate (offset + 2) ' ' <> "- ") + <$> keyDashParser + + keyDashParser = do offset <- length <$> (spaces |?) + key <- text 100 <* maybeWithin spacesOrTabs colon + dash <* spacesOrTabs + pure (offset, key) diff --git a/src/Bookhound/Format/SyntaxTrees/Json.hs b/src/Bookhound/Format/SyntaxTrees/Json.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/SyntaxTrees/Json.hs @@ -0,0 +1,28 @@ +module Bookhound.Format.SyntaxTrees.Json (JsExpression(..)) where + +import Bookhound.Internal.Foldable (stringify) +import Bookhound.Internal.Map (showMap) + +import Data.Char (toLower) +import Data.Map (Map) + + + +data JsExpression + = JsNumber Double + | JsBool Bool + | JsString String + | JsArray [JsExpression] + | JsObject (Map String JsExpression) + | JsNull + deriving (Eq, Ord) + + +instance Show JsExpression where + show = \case + JsNull -> "null" + JsNumber n -> show n + JsBool bool -> toLower <$> show bool + JsString str -> show str + JsArray arr -> stringify ",\n" "[\n" "\n]" 2 $ show <$> arr + JsObject obj -> stringify ",\n" "{\n" "\n}" 2 $ showMap ": " id show obj diff --git a/src/Bookhound/Format/SyntaxTrees/Toml.hs b/src/Bookhound/Format/SyntaxTrees/Toml.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/SyntaxTrees/Toml.hs @@ -0,0 +1,57 @@ +module Bookhound.Format.SyntaxTrees.Toml (TomlExpression(..), TableType(..)) where + +import Bookhound.Internal.DateTime (showDateTime) +import Bookhound.Internal.Foldable (stringify) +import Bookhound.Internal.Map (showMap) + +import Data.Char (toLower) +import Data.Time (Day, TimeOfDay, ZonedTime (..)) + +import Data.Map (Map) +import qualified Data.Map as Map + + + +data TomlExpression + = TomlInteger Integer + | TomlFloat Double + | TomlBool Bool + | TomlString String + | TomlDate Day + | TomlTime TimeOfDay + | TomlDateTime ZonedTime + | TomlArray [TomlExpression] + | TomlTable TableType (Map String TomlExpression) + | TomlNull + deriving (Eq, Ord) + + +data TableType + = TopLevel + | Standard + | Inline + deriving (Eq, Ord) + + +instance Show TomlExpression where + show = \case + TomlNull -> "null" + TomlInteger n -> show n + TomlFloat n -> show n + TomlBool bool -> toLower <$> show bool + TomlDate date -> show date + TomlTime time -> show time + TomlDateTime dateTime -> showDateTime dateTime + TomlString str -> show str + + TomlTable Standard table -> stringify "\n" "" "" 0 $ showMap " = " id show table + + TomlTable TopLevel table -> stringify "\n\n" "\n" "\n" 0 $ showMap "" showTableHeader show table where + showTableHeader header = if header /= "" then "[" <> header <> "]" <> "\n" else "" + + TomlTable Inline table -> stringify (", " <> sep) ("{ " <> sep) (" }" <> sep) n $ + showMap " = " id show table where + (sep, n) = if (length . mconcat) (show <$> Map.toList table) >= 80 then ("\n", 2) else ("", 0) + + TomlArray arr -> stringify (", " <> sep) ("[ " <> sep) (" ]" <> sep) n $ show <$> arr where + (sep, n) = if (length . mconcat) (show <$> arr) >= 80 then ("\n", 2) else ("", 0) diff --git a/src/Bookhound/Format/SyntaxTrees/Xml.hs b/src/Bookhound/Format/SyntaxTrees/Xml.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/SyntaxTrees/Xml.hs @@ -0,0 +1,58 @@ +module Bookhound.Format.SyntaxTrees.Xml (XmlExpression(..), literalExpression, flatten, findAll, find) where + +import Bookhound.Internal.Foldable (stringify) + +import Data.Maybe (listToMaybe) + +import Data.Map (Map, elems, keys) +import qualified Data.Map as Map + + +data XmlExpression + = XmlExpression + { tagName :: String + , fields :: Map String String + , expressions :: [XmlExpression] + } + deriving (Eq, Ord) + + +instance Show XmlExpression where + + show XmlExpression { tagName = tag, .. } + | tag == "literal" = head . elems $ fields + | otherwise = "<" <> tag <> flds <> innerExprs where + + innerExprs = if | null expressions -> "/>" + | otherwise -> ">" <> ending + + (sep, n) = if | ((tagName) . head) expressions == "literal" -> ("", 0) + | otherwise -> ("\n", 2) + + ending = stringify sep sep sep n (show <$> expressions) <> " tag <> ">" + + flds | null fields = "" + | otherwise = " " <> fieldsString where + + fieldsString = stringify " " "" "" 0 $ showFn <$> tuples + showFn (x, y) = x <> "=" <> show y + tuples = zip (keys fields) (elems fields) + + + +literalExpression :: String -> XmlExpression +literalExpression val = XmlExpression { tagName = "literal", + fields = Map.fromList [("value", val)], + expressions = [] } + + +flatten :: XmlExpression -> [XmlExpression] +flatten expr = expr : expressions expr >>= flatten + + +findAll :: (XmlExpression -> Bool) -> XmlExpression -> [XmlExpression] +findAll f = filter f . flatten + + +find :: (XmlExpression -> Bool) -> XmlExpression -> Maybe XmlExpression +find f = listToMaybe . findAll f diff --git a/src/Bookhound/Format/SyntaxTrees/Yaml.hs b/src/Bookhound/Format/SyntaxTrees/Yaml.hs new file mode 100644 --- /dev/null +++ b/src/Bookhound/Format/SyntaxTrees/Yaml.hs @@ -0,0 +1,69 @@ +module Bookhound.Format.SyntaxTrees.Yaml (YamlExpression(..), CollectionType(..)) where + +import Bookhound.Internal.DateTime () +import Bookhound.Internal.Foldable (stringify) +import Bookhound.Internal.Map (showMap) + +import Data.Char (toLower) +import Data.Map (Map) +import qualified Data.Map as Map +import Data.Time (Day, TimeOfDay, ZonedTime (..)) + + + +data YamlExpression + = YamlInteger Integer + | YamlFloat Double + | YamlBool Bool + | YamlString String + | YamlDate Day + | YamlTime TimeOfDay + | YamlDateTime ZonedTime + | YamlList CollectionType [YamlExpression] + | YamlMap CollectionType (Map String YamlExpression) + | YamlNull + deriving (Eq, Ord) + +data CollectionType + = Standard + | Inline + deriving (Eq, Ord) + + +instance Show YamlExpression where + show = \case + YamlNull -> "null" + YamlInteger n -> show n + YamlFloat n -> show n + YamlBool bool -> toLower <$> show bool + YamlDate date -> show date + YamlTime time -> show time + YamlDateTime dateTime -> show dateTime + YamlString str -> showStr str + YamlList Standard list -> stringify "\n" "\n" "" 2 $ ("- " <>) . show <$> list + YamlMap Standard mapping -> stringify "\n" "\n" "" 2 $ showMap ": " id show mapping + + YamlList Inline list -> stringify (", " <> sep) ("[ " <> sep) (" ]" <> sep) n $ show <$> list where + (sep, n) = if (length . mconcat) (show <$> list) >= 80 then ("\n", 2) else ("", 0) + + YamlMap Inline mapping -> stringify (", " <> sep) ("{ " <> sep) (" }" <> sep) n $ + showMap ": " id show mapping where + (sep, n) = if (length . mconcat) (show <$> Map.toList mapping) >= 80 then ("\n", 2) else ("", 0) + + + +showStr :: String -> String +showStr str = (if (length (lines str) > 1) && not (any (`elem` str) forbiddenChar) + then "| \n" + else if length (lines str) > 1 then "\n" + else "") <> + + (if not $ any (`elem` str) forbiddenChar then str + else if '"' `elem` str then "'" <> indented 3 <> "'" + else "\"" <> indented 3) <> "\"" where + + indented n = head (lines str) <> + mconcat ((("\n" <> replicate n ' ') <>) <$> tail (lines str)) + + forbiddenChar = ['#', '&', '*', ',', '?', '-', ':', '[', ']', '{', '}'] <> + ['>', '|', ':', '!']