diff --git a/CHANGELOG.md b/CHANGELOG.md new file mode 100644 --- /dev/null +++ b/CHANGELOG.md @@ -0,0 +1,7 @@ +`subtoml` changelog +=================== + +Version 0.1.0 +-------------- + +Initial release. Released on September 24, 2017. diff --git a/LICENSE b/LICENSE new file mode 100644 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 --- /dev/null +++ b/README.md @@ -0,0 +1,79 @@ +`submark`: Extract a part from CommonMark/Markdown docs +======================================================= + +[![CircleCI][circleci-badge]][circleci] + +`submark` is a CLI program to extract some particular section from +a givne CommonMark/Markdown document. I use it for myself to extract +the latest version section from the CHANGELOG.md file, and then reuse the text +for the corresponding release note on GitHub releases, during automated release +process which is run on CI. + +[circleci-badge]: https://circleci.com/gh/dahlia/submark.svg?style=shield +[circleci]: https://circleci.com/gh/dahlia/submark + + +Usage examples +-------------- + +The following examples use [John Gruber's original Markdown introduction][1]: + +~~~~~~~~ bash +$ wget https://daringfireball.net/projects/markdown/index.text +~~~~~~~~ + +Extracting an H3 heading *Command-Line*: + +~~~~~~~~ bash +$ submark --h3 "Command-Line" index.text +### Command-Line + +Use the `--html4tags` command-line switch to produce HTML output from a +Unix-style command line. E.g.: + + % perl Markdown.pl --html4tags foo.text + +Type `perldoc Markdown.pl`, or read the POD documentation within the +Markdown.pl source code for more information. +~~~~~~~~ + +Note that its textual style differ from the original text. +Since ``submark`` internally builds an abstract syntax tree from the given input +text and then render again the result tree, it doesn't maintain trivial styles +(e.g., whitespaces, ATX vs. Setext headings) but only the semantics. + +There are options from `--h1` to `--h6`: + +~~~~~~~~ bash +$ submark --h2 "Download" index.text +## Download + +[Markdown 1.0.1](http://daringfireball.net/projects/downloads/Markdown_1.0.1.zip) +(18 KB) -- 17 Dec 2004 +~~~~~~~~ + +The leading heading can be omitted: + +~~~~~~~~ bash +$ submark --h2 "Download" --omit-heading index.text +[Markdown 1.0.1](http://daringfireball.net/projects/downloads/Markdown_1.0.1.zip) +(18 KB) -- 17 Dec 2004 +~~~~~~~~ + +By Unix convention, `-` means pipe: + +~~~~~~~~ bash +$ submark --h2 "Download" - < index.text +## Download + +[Markdown 1.0.1](http://daringfireball.net/projects/downloads/Markdown_1.0.1.zip) +(18 KB) -- 17 Dec 2004 +~~~~~~~~ + +There's `-o`/`--out-file` option as well: + +~~~~~~~~ bash +$ submark -o download.md --h2 "Download" index.text +~~~~~~~~ + +[1]: https://daringfireball.net/projects/markdown/index.text diff --git a/Setup.hs b/Setup.hs new file mode 100644 --- /dev/null +++ b/Setup.hs @@ -0,0 +1,2 @@ +import Distribution.Simple +main = defaultMain diff --git a/app/Main.hs b/app/Main.hs new file mode 100644 --- /dev/null +++ b/app/Main.hs @@ -0,0 +1,103 @@ +import Data.Semigroup ((<>)) +import System.IO + +import CMark +import Data.Text hiding (empty, foldl) +import Data.Text.IO as TIO +import Options.Applicative + +import Text.CommonMark.Sub + +data HeadingPattern = HeadingPattern Level Text deriving (Eq, Ord, Show) + +data Extraction = Extraction + { outputFilePath :: FilePath + , headingPattern :: HeadingPattern + , omitHeading :: Bool + , columnWidth :: Maybe Int + , inputFilePath :: FilePath + } deriving (Eq, Ord, Show) + +headingLevel :: Parser HeadingPattern +headingLevel = + foldl (<|>) empty parsers + where + levels :: [Level] + levels = [1..6] + parsers :: [Parser HeadingPattern] + parsers = + [ (HeadingPattern l . pack) <$> strOption + ( long ("h" ++ show l) + <> metavar "TITLE" + <> help ("Extract the section with the heading level " ++ + show l ++ ". Mutually exclusive with other --h* " ++ + "options") + ) + | l <- levels + ] + +parser :: Parser Extraction +parser = Extraction + <$> strOption ( long "out-file" + <> short 'o' + <> metavar "FILE" + <> value "-" + <> showDefault + <> help "Write output to FILE" + ) + <*> headingLevel + <*> switch ( long "omit-heading" + <> short 'O' + <> help "Omit a leading heading" + ) + <*> ( Just . read <$> strOption + ( long "columns" + <> short 'c' + <> metavar "WIDTH" + <> help ("Limit the maximum characters per line of the output. " ++ + "No limit by default") + ) + <|> pure Nothing + ) + <**> helper + <*> strArgument ( metavar "FILE" + <> help "CommonMark/Markdown text to extract from" + ) + +parserInfo :: ParserInfo Extraction +parserInfo = info parser $ + fullDesc <> progDesc "Extract a part from CommonMark/Markdown docs." + +withInputFile :: Extraction -> (Handle -> IO r) -> IO r +withInputFile Extraction { inputFilePath = "-" } action' = do + let i = stdin + r <- action' i + hClose i + return r +withInputFile Extraction { inputFilePath = i } action' = + withFile i ReadMode action' + +withOutputFile :: Extraction -> (Handle -> IO r) -> IO r +withOutputFile Extraction { outputFilePath = "-" } action' = do + let o = stdout + r <- action' o + hClose o + return r +withOutputFile Extraction { outputFilePath = o } action' = + withFile o WriteMode action' + +extract :: Extraction -> IO () +extract e@Extraction { headingPattern = (HeadingPattern level title) + , omitHeading = omitHeading' + , columnWidth = width + } = do + text <- withInputFile e TIO.hGetContents + let doc = commonmarkToNode [] text + node = case (omitHeading', extractSection level title doc) of + (True, Node p DOCUMENT (_ : xs)) -> Node p DOCUMENT xs + (_, other) -> other + result = nodeToCommonmark [] width node + withOutputFile e (`TIO.hPutStrLn` result) + +main :: IO () +main = execParser parserInfo >>= extract diff --git a/src/Text/CommonMark/Sub.hs b/src/Text/CommonMark/Sub.hs new file mode 100644 --- /dev/null +++ b/src/Text/CommonMark/Sub.hs @@ -0,0 +1,41 @@ +module Text.CommonMark.Sub + ( Level + , extractSection + , flattenInlineNodes + , matchesHeading + ) where + +import Prelude hiding (concat) + +import CMark +import Data.Text (Text, concat, pack, strip) + +extractSection :: Level -> Text -> Node -> Node +extractSection headingLevel headingTitle (Node pos DOCUMENT nodes) = + Node pos DOCUMENT $ case headlessNodes of + (x : xs) -> x : takeWhile (isInSection headingLevel) xs + [] -> [] + where + isInSection :: Level -> Node -> Bool + isInSection level (Node _ (HEADING lv) _) = lv > level + isInSection _ _ = True + headlessNodes :: [Node] + headlessNodes = + dropWhile (not . matchesHeading headingLevel headingTitle) nodes +extractSection _ _ (Node pos _ _) = Node pos DOCUMENT [] + +matchesHeading :: Level -> Text -> Node -> Bool +matchesHeading level text (Node _ (HEADING lv) nodes) = + lv == level && flattenInlineNodes nodes == text +matchesHeading _ _ _ = False + +flattenInlineNodes :: [Node] -> Text +flattenInlineNodes = + strip . concat . map flatten + where + flatten :: Node -> Text + flatten (Node _ (TEXT text) _) = text + flatten (Node _ LINEBREAK _) = pack "\n" + flatten (Node _ (HTML_INLINE text) _) = text + flatten (Node _ (CODE text) _) = text + flatten (Node _ _ nodes) = flattenInlineNodes nodes diff --git a/submark.cabal b/submark.cabal new file mode 100644 --- /dev/null +++ b/submark.cabal @@ -0,0 +1,96 @@ +-- This file has been generated from package.yaml by hpack version 0.17.1. +-- +-- see: https://github.com/sol/hpack + +name: submark +version: 0.1.0 +synopsis: Extract a part from CommonMark/Markdown docs +category: Text +stability: alpha +homepage: https://github.com/dahlia/submark#readme +bug-reports: https://github.com/dahlia/submark/issues +author: Hong Minhee +maintainer: hong.minhee@gmail.com +copyright: (c) 2017 Hong Minhee +license: GPL-3 +license-file: LICENSE +build-type: Simple +cabal-version: >= 1.10 + +extra-source-files: + CHANGELOG.md + README.md + +source-repository head + type: git + location: https://github.com/dahlia/submark + +flag static + description: Static link + manual: True + default: False + +library + hs-source-dirs: + src + ghc-options: -Wall -fwarn-incomplete-uni-patterns + build-depends: + base >= 4.7 && < 5 + , cmark >= 0.5.6 && < 0.6.0 + , text == 1.* + exposed-modules: + Text.CommonMark.Sub + default-language: Haskell2010 + +executable submark + main-is: Main.hs + hs-source-dirs: + app + ghc-options: -Wall -fwarn-incomplete-uni-patterns + build-depends: + base >= 4.7 && < 5 + , cmark >= 0.5.6 && < 0.6.0 + , text == 1.* + , submark + , optparse-applicative >= 0.13.2.0 && < 0.15.0.0 + if flag(static) + ghc-options: -Wall -fwarn-incomplete-uni-patterns -static -optl-static -optl-pthread -optc-Os -fPIC + else + ghc-options: -Wall -fwarn-incomplete-uni-patterns + default-language: Haskell2010 + +test-suite hlint + type: exitcode-stdio-1.0 + main-is: HLint.hs + hs-source-dirs: + test + ghc-options: -Wall -fwarn-incomplete-uni-patterns + build-depends: + base >= 4.7 && < 5 + , cmark >= 0.5.6 && < 0.6.0 + , text == 1.* + , hlint >= 2.0.9 && < 3 + other-modules: + Spec + Text.CommonMark.QQ + Text.CommonMark.SubSpec + default-language: Haskell2010 + +test-suite spec + type: exitcode-stdio-1.0 + main-is: Spec.hs + hs-source-dirs: + test + ghc-options: -Wall -fwarn-incomplete-uni-patterns + build-depends: + base >= 4.7 && < 5 + , cmark >= 0.5.6 && < 0.6.0 + , text == 1.* + , hspec >= 2.4.4 && < 3.0.0 + , submark + , template-haskell >= 2.5 + other-modules: + HLint + Text.CommonMark.QQ + Text.CommonMark.SubSpec + default-language: Haskell2010 diff --git a/test/HLint.hs b/test/HLint.hs new file mode 100644 --- /dev/null +++ b/test/HLint.hs @@ -0,0 +1,12 @@ +import Language.Haskell.HLint +import System.Exit + +arguments :: [String] +arguments = ["app", "src", "test"] + +main :: IO () +main = do + hlints <- hlint arguments + case hlints of + [] -> exitSuccess + _ -> exitFailure diff --git a/test/Spec.hs b/test/Spec.hs new file mode 100644 --- /dev/null +++ b/test/Spec.hs @@ -0,0 +1,1 @@ +{-# OPTIONS_GHC -F -pgmF hspec-discover #-} diff --git a/test/Text/CommonMark/QQ.hs b/test/Text/CommonMark/QQ.hs new file mode 100644 --- /dev/null +++ b/test/Text/CommonMark/QQ.hs @@ -0,0 +1,44 @@ +{-# LANGUAGE TemplateHaskell #-} +module Text.CommonMark.QQ (doc, node, nodes) where + +import CMark +import Data.Text hiding (head) +import qualified Language.Haskell.TH as TH +import Language.Haskell.TH.Quote + +doc :: QuasiQuoter +doc = QuasiQuoter + docQ + (error "Cannot use [doc|...|] as a pattern") + (error "Cannot use [doc|...|] as a type") + (error "Cannot use [doc|...|] as a dec") + +nodes :: QuasiQuoter +nodes = QuasiQuoter + nodesQ + (error "Cannot use [nodes|...|] as a pattern") + (error "Cannot use [nodes|...|] as a type") + (error "Cannot use [nodes|...|] as a dec") + +node :: QuasiQuoter +node = QuasiQuoter + nodeQ + (error "Cannot use [node|...|] as a pattern") + (error "Cannot use [node|...|] as a type") + (error "Cannot use [node|...|] as a dec") + +parse :: String -> Node +parse = dropPosInfo . commonmarkToNode [optNormalize] . pack + +dropPosInfo :: Node -> Node +dropPosInfo (Node _ nodeType children) = + Node Nothing nodeType $ fmap dropPosInfo children + +docQ :: String -> TH.ExpQ +docQ text = [e|parse text|] + +nodesQ :: String -> TH.ExpQ +nodesQ text = [e|let (Node _ _ ns) = parse text in ns|] + +nodeQ :: String -> TH.ExpQ +nodeQ text = [e|let (Node _ _ ns) = parse text in head ns|] diff --git a/test/Text/CommonMark/SubSpec.hs b/test/Text/CommonMark/SubSpec.hs new file mode 100644 --- /dev/null +++ b/test/Text/CommonMark/SubSpec.hs @@ -0,0 +1,72 @@ +{-# LANGUAGE OverloadedStrings #-} +{-# LANGUAGE QuasiQuotes #-} +module Text.CommonMark.SubSpec (spec) where + +import Test.Hspec + +import Text.CommonMark.QQ +import Text.CommonMark.Sub + +spec :: Spec +spec = do + specify "extractSection" $ + extractSection 2 "Section to extract" [doc|Doc title +===================================== + +Lorem ipsum dolor sit amet, ne omnes vitae mel, alterum invenire duo ut, +ad deterruisset comprehensam qui. At ius ludus iracundia vituperatoribus. + +Section to *extract* +-------------------- + +Ei nec prima congue noster, ut vis ipsum concludaturque. +Nisl modus dolorum sea cu, qui et stet decore putant. + +> Qui vivendo consectetuer id, ea suas laoreet adipisci sed. +> Mel omnes partiendo in, id sed soluta lucilius. Amet cibo est an, +> cu sed placerat maluisset. Vel et esse fugit commune, at quo sonet facilisi. + +### Subsection + +Vis ut audire inimicus, ut mea putant prompta. +Vivendo assentior mnesarchum ius ei, novum aperiam habemus est in, +ea agam putant consectetuer sed. + +Other section +------------- + +Pro fuisset deserunt consulatu at, no epicuri quaestio vix, +case scripserit at vis. No eam alia facilisis. At quo oratio omnium, +nibh malis dolores an eam. +|] `shouldBe` [doc| +Section to *extract* +-------------------- + +Ei nec prima congue noster, ut vis ipsum concludaturque. +Nisl modus dolorum sea cu, qui et stet decore putant. + +> Qui vivendo consectetuer id, ea suas laoreet adipisci sed. +> Mel omnes partiendo in, id sed soluta lucilius. Amet cibo est an, +> cu sed placerat maluisset. Vel et esse fugit commune, at quo sonet facilisi. + +### Subsection + +Vis ut audire inimicus, ut mea putant prompta. +Vivendo assentior mnesarchum ius ei, novum aperiam habemus est in, +ea agam putant consectetuer sed. + +|] + specify "matchesHeading" $ do + [node|# Title|] `shouldSatisfy` matchesHeading 1 "Title" + [node|### Title|] `shouldSatisfy` matchesHeading 3 "Title" + [node|# Other title|] `shouldSatisfy` matchesHeading 1 "Other title" + [node|# Complex *title*|] `shouldSatisfy` + matchesHeading 1 "Complex title" + [node|# Title|] `shouldNotSatisfy` matchesHeading 2 "Title" + [node|# Title|] `shouldNotSatisfy` matchesHeading 1 "Wrong title" + specify "flattenInlineNodes" $ do + flattenInlineNodes [nodes|*Test* nodes.|] `shouldBe` "Test nodes." + flattenInlineNodes [nodes|Testing multiple paragraphs. + +[Link](http://example.com/) test.|] `shouldBe` + "Testing multiple paragraphs.Link test."