diff options
Diffstat (limited to 'Text/Pandoc')
| -rw-r--r-- | Text/Pandoc/Readers/Markdown.hs | 27 | ||||
| -rw-r--r-- | Text/Pandoc/Shared.hs | 2 |
2 files changed, 29 insertions, 0 deletions
diff --git a/Text/Pandoc/Readers/Markdown.hs b/Text/Pandoc/Readers/Markdown.hs index e9f19e817..b2e0928c9 100644 --- a/Text/Pandoc/Readers/Markdown.hs +++ b/Text/Pandoc/Readers/Markdown.hs @@ -45,6 +45,7 @@ import Text.Pandoc.Readers.HTML ( rawHtmlBlock, anyHtmlBlockTag, htmlBlockElement, unsanitaryURI ) import Text.Pandoc.CharacterReferences ( decodeCharacterReferences ) import Text.ParserCombinators.Parsec +import Control.Monad (when) -- | Read markdown from an input string and return a Pandoc document. readMarkdown :: ParserState -> String -> Pandoc @@ -102,6 +103,12 @@ failUnlessSmart = do state <- getState if stateSmart state then return () else fail "Smart typography feature" +-- | Fail unless we're in literate haskell mode. +failUnlessLHS :: GenParser tok ParserState () +failUnlessLHS = do + state <- getState + if stateLiterateHaskell state then return () else fail "Literate haskell feature" + -- | Parse a sequence of inline elements between square brackets, -- including inlines between balanced pairs of square brackets. inlinesInBalancedBrackets :: GenParser Char ParserState Inline @@ -268,6 +275,7 @@ block = do , header , table , codeBlockIndented + , lhsCodeBlock , blockQuote , hrule , bulletList @@ -393,6 +401,25 @@ codeBlockIndented = do optional blanklines return $ CodeBlock ("",[],[]) $ stripTrailingNewlines $ concat contents +lhsCodeBlock :: GenParser Char ParserState Block +lhsCodeBlock = do + failUnlessLHS + pos <- getPosition + when (sourceColumn pos /= 1) $ fail "Not in first column" + lns <- many1 birdTrackLine + -- if (as is normal) there is always a space after >, drop it + let lns' = if all (\ln -> null ln || take 1 ln == " ") lns + then map (drop 1) lns + else lns + blanklines + return $ CodeBlock ("",["haskell"],[]) $ intercalate "\n" lns' + +birdTrackLine :: GenParser Char st [Char] +birdTrackLine = do + char '>' + manyTill anyChar newline + + -- -- block quotes -- diff --git a/Text/Pandoc/Shared.hs b/Text/Pandoc/Shared.hs index 8b08a0e94..0d137e9a9 100644 --- a/Text/Pandoc/Shared.hs +++ b/Text/Pandoc/Shared.hs @@ -635,6 +635,7 @@ data ParserState = ParserState stateDate :: String, -- ^ Date of document stateStrict :: Bool, -- ^ Use strict markdown syntax? stateSmart :: Bool, -- ^ Use smart typography? + stateLiterateHaskell :: Bool, -- ^ Treat input as literate haskell stateColumns :: Int, -- ^ Number of columns in terminal stateHeaderTable :: [HeaderType] -- ^ Ordered list of header types used } @@ -658,6 +659,7 @@ defaultParserState = stateDate = [], stateStrict = False, stateSmart = False, + stateLiterateHaskell = False, stateColumns = 80, stateHeaderTable = [] } |