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-rw-r--r--README26
-rw-r--r--src/Text/Pandoc/Readers/Markdown.hs167
-rw-r--r--src/Text/Pandoc/Shared.hs56
-rw-r--r--src/Text/Pandoc/Writers/HTML.hs46
4 files changed, 126 insertions, 169 deletions
diff --git a/README b/README
index f1361fcd7..a4085db5e 100644
--- a/README
+++ b/README
@@ -299,7 +299,7 @@ For further documentation, see the `pandoc(1)` man page.
: includes *string* as a prefix at the beginning of the title that
appears in the HTML header (but not in the title as it appears at
the beginning of the HTML body). (See below on
- [Title Blocks].)
+ [Title Blocks](#title-blocks).)
`-S` or `--smart`
: causes `pandoc` to produce typographically correct output, along the
@@ -797,28 +797,8 @@ another. A link to this section, for example, might look like this:
See the section on [header identifiers](#header-identifiers-in-html).
-Note that this method of providing links to sections works only in
-HTML.
-
-Shortcut links to section headers
----------------------------------
-
-You may use the following shortcut to link to a section header:
-
- See the section on [Header identifiers in HTML].
-
-Pandoc will behave as if the document contains
-
- [Header identifiers in HTML]: #header-identifiers-in-html
-
-If there are multiple headers labeled "Header identifiers in HTML",
-this will link to the first one. Note that implicit references are always
-overridden by explicit ones, so the link in the following text
-will be to `/url`, not `#header-identifiers-in-html`:
-
- See the section on [Header identifiers in HTML].
-
- [Header identifiers in HTML]: /url
+Note, however, that this method of providing links to sections works
+only in HTML.
Box-style blockquotes
---------------------
diff --git a/src/Text/Pandoc/Readers/Markdown.hs b/src/Text/Pandoc/Readers/Markdown.hs
index 7168cee4d..ded9f2136 100644
--- a/src/Text/Pandoc/Readers/Markdown.hs
+++ b/src/Text/Pandoc/Readers/Markdown.hs
@@ -19,7 +19,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
{- |
Module : Text.Pandoc.Readers.Markdown
Copyright : Copyright (C) 2006-7 John MacFarlane
- License : GNU GPL, version 2 or above
+ License : GNU GPL, version 2 or above
Maintainer : John MacFarlane <jgm@berkeley.edu>
Stability : alpha
@@ -27,8 +27,8 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Conversion of markdown-formatted plain text to 'Pandoc' document.
-}
-module Text.Pandoc.Readers.Markdown (
- readMarkdown
+module Text.Pandoc.Readers.Markdown (
+ readMarkdown
) where
import Data.List ( transpose, isPrefixOf, isSuffixOf, lookup, sortBy, findIndex )
@@ -37,9 +37,9 @@ import Data.Char ( isAlphaNum )
import Data.Maybe ( fromMaybe )
import Network.URI ( isURI )
import Text.Pandoc.Definition
-import Text.Pandoc.Shared
+import Text.Pandoc.Shared
import Text.Pandoc.Readers.LaTeX ( rawLaTeXInline, rawLaTeXEnvironment )
-import Text.Pandoc.Readers.HTML ( rawHtmlBlock, anyHtmlBlockTag,
+import Text.Pandoc.Readers.HTML ( rawHtmlBlock, anyHtmlBlockTag,
anyHtmlInlineTag, anyHtmlTag,
anyHtmlEndTag, htmlEndTag, extractTagType,
htmlBlockElement )
@@ -69,14 +69,14 @@ specialChars = "\\[]*_~`<>$!^-.&'\"\8216\8217\8220\8221"
indentSpaces = try $ do
state <- getState
let tabStop = stateTabStop state
- try (count tabStop (char ' ')) <|>
+ try (count tabStop (char ' ')) <|>
(many (char ' ') >> string "\t") <?> "indentation"
nonindentSpaces = do
state <- getState
let tabStop = stateTabStop state
sps <- many (char ' ')
- if length sps < tabStop
+ if length sps < tabStop
then return sps
else unexpected "indented line"
@@ -91,8 +91,8 @@ failUnlessSmart = do
if stateSmart state then return () else fail "Smart typography feature"
-- | Parse an inline Str element with a given content.
-inlineString str = try $ do
- (Str res) <- inline
+inlineString str = try $ do
+ (Str res) <- inline
if res == str then return res else fail $ "unexpected Str content"
-- | Parse a sequence of inline elements between a string
@@ -103,9 +103,9 @@ inlinesInBalanced opener closer = try $ do
string opener
result <- manyTill ( (do lookAhead (inlineString opener)
-- because it might be a link...
- bal <- inlinesInBalanced opener closer
+ bal <- inlinesInBalanced opener closer
return $ [Str opener] ++ bal ++ [Str closer])
- <|> (count 1 inline))
+ <|> (count 1 inline))
(try (string closer))
return $ concat result
@@ -115,7 +115,7 @@ inlinesInBalanced opener closer = try $ do
titleLine = try $ char '%' >> skipSpaces >> manyTill inline newline
-authorsLine = try $ do
+authorsLine = try $ do
char '%'
skipSpaces
authors <- sepEndBy (many1 (noneOf ",;\n")) (oneOf ",;")
@@ -143,24 +143,15 @@ parseMarkdown = do
startPos <- getPosition
-- go through once just to get list of reference keys
-- docMinusKeys is the raw document with blanks where the keys were...
- docMinusKeys <- manyTill (referenceKey <|> headerReference <|>
- lineClump) eof >>= return . concat
+ docMinusKeys <- manyTill (referenceKey <|> lineClump) eof >>=
+ return . concat
setInput docMinusKeys
setPosition startPos
st <- getState
- -- get headers and construct implicit references unless strict
- if stateStrict st
- then return ()
- else do let oldkeys = stateKeys st
- let headers = reverse $ stateHeaders st
- let idents = uniqueIdentifiers headers
- let implicitRefs = zipWith (\hd ident -> (hd, ("#" ++ ident, "")))
- headers idents
- updateState $ \st -> st { stateKeys = oldkeys ++ implicitRefs }
-- go through again for notes unless strict...
if stateStrict st
then return ()
- else do docMinusNotes <- manyTill (noteBlock <|> lineClump) eof >>=
+ else do docMinusNotes <- manyTill (noteBlock <|> lineClump) eof >>=
return . concat
st <- getState
let reversedNotes = stateNotes st
@@ -169,10 +160,10 @@ parseMarkdown = do
setPosition startPos
-- now parse it for real...
(title, author, date) <- option ([],[],"") titleBlock
- blocks <- parseBlocks
+ blocks <- parseBlocks
return $ Pandoc (Meta title author date) $ filter (/= Null) blocks
---
+--
-- initial pass for references and notes
--
@@ -195,17 +186,7 @@ referenceKey = try $ do
-- return blanks so line count isn't affected
return $ replicate (sourceLine endPos - sourceLine startPos) '\n'
-headerReference = try $ do
- failIfStrict
- startPos <- getPosition
- (Header level text) <- lookAhead $ atxHeader <|> setextHeader
- st <- getState
- let headers = stateHeaders st
- updateState $ \st -> st { stateHeaders = text:headers }
- endPos <- getPosition
- lineClump -- return the raw header, because we need to parse it later
-
-referenceTitle = try $ do
+referenceTitle = try $ do
(many1 spaceChar >> option '\n' newline) <|> newline
skipSpaces
tit <- (charsInBalanced '(' ')' >>= return . unwords . words)
@@ -220,7 +201,7 @@ rawLine = do
notFollowedBy blankline
notFollowedBy' noteMarker
contents <- many1 nonEndline
- end <- option "" (newline >> optional indentSpaces >> return "\n")
+ end <- option "" (newline >> optional indentSpaces >> return "\n")
return $ contents ++ end
rawLines = many1 rawLine >>= return . concat
@@ -249,7 +230,7 @@ noteBlock = try $ do
parseBlocks = manyTill block eof
-block = choice [ header
+block = choice [ header
, table
, codeBlock
, hrule
@@ -304,7 +285,7 @@ hrule = try $ do
indentedLine = indentSpaces >> manyTill anyChar newline >>= return . (++ "\n")
codeBlock = do
- contents <- many1 (indentedLine <|>
+ contents <- many1 (indentedLine <|>
try (do b <- blanklines
l <- indentedLine
return $ b ++ l))
@@ -319,7 +300,7 @@ emacsBoxQuote = try $ do
failIfStrict
string ",----"
manyTill anyChar newline
- raw <- manyTill
+ raw <- manyTill
(try (char '|' >> optional (char ' ') >> manyTill anyChar newline))
(try (string "`----"))
blanklines
@@ -329,7 +310,7 @@ emailBlockQuoteStart = try $ nonindentSpaces >> char '>' >>~ optional (char ' ')
emailBlockQuote = try $ do
emailBlockQuoteStart
- raw <- sepBy (many (nonEndline <|>
+ raw <- sepBy (many (nonEndline <|>
(try (endline >> notFollowedBy emailBlockQuoteStart >>
return '\n'))))
(try (newline >> emailBlockQuoteStart))
@@ -337,12 +318,12 @@ emailBlockQuote = try $ do
optional blanklines
return raw
-blockQuote = do
+blockQuote = do
raw <- emailBlockQuote <|> emacsBoxQuote
-- parse the extracted block, which may contain various block elements:
contents <- parseFromString parseBlocks $ (joinWithSep "\n" raw) ++ "\n\n"
return $ BlockQuote contents
-
+
--
-- list blocks
--
@@ -377,7 +358,7 @@ orderedListStart style delim = try $ do
then do many1 digit
char '.'
return 1
- else orderedListMarker style delim
+ else orderedListMarker style delim
if delim == Period && (style == UpperAlpha || (style == UpperRoman &&
num `elem` [1, 5, 10, 50, 100, 500, 1000]))
then char '\t' <|> (spaceChar >> spaceChar)
@@ -401,7 +382,7 @@ rawListItem start = try $ do
blanks <- many blankline
return $ concat result ++ blanks
--- continuation of a list item - indented and separated by blankline
+-- continuation of a list item - indented and separated by blankline
-- or (in compact lists) endline.
-- note: nested lists are parsed as continuations
listContinuation start = try $ do
@@ -417,7 +398,7 @@ listContinuationLine start = try $ do
result <- manyTill anyChar newline
return $ result ++ "\n"
-listItem start = try $ do
+listItem start = try $ do
first <- rawListItem start
continuations <- many (listContinuation start)
-- parsing with ListItemState forces markers at beginning of lines to
@@ -437,7 +418,7 @@ orderedList = try $ do
items <- many1 (listItem (orderedListStart style delim))
return $ OrderedList (start, style, delim) $ compactify items
-bulletList = many1 (listItem bulletListStart) >>=
+bulletList = many1 (listItem bulletListStart) >>=
return . BulletList . compactify
-- definition lists
@@ -478,7 +459,7 @@ definitionList = do
-- paragraph block
--
-para = try $ do
+para = try $ do
result <- many1 inline
newline
blanklines <|> do st <- getState
@@ -487,9 +468,9 @@ para = try $ do
else lookAhead emacsBoxQuote >> return ""
return $ Para $ normalizeSpaces result
-plain = many1 inline >>= return . Plain . normalizeSpaces
+plain = many1 inline >>= return . Plain . normalizeSpaces
---
+--
-- raw html
--
@@ -506,25 +487,25 @@ htmlBlock = do
else rawHtmlBlocks
-- True if tag is self-closing
-isSelfClosing tag =
+isSelfClosing tag =
isSuffixOf "/>" $ filter (not . (`elem` " \n\t")) tag
strictHtmlBlock = try $ do
- tag <- anyHtmlBlockTag
+ tag <- anyHtmlBlockTag
let tag' = extractTagType tag
- if isSelfClosing tag || tag' == "hr"
+ if isSelfClosing tag || tag' == "hr"
then return tag
- else do contents <- many (notFollowedBy' (htmlEndTag tag') >>
+ else do contents <- many (notFollowedBy' (htmlEndTag tag') >>
(htmlElement <|> (count 1 anyChar)))
end <- htmlEndTag tag'
return $ tag ++ concat contents ++ end
rawHtmlBlocks = do
- htmlBlocks <- many1 rawHtmlBlock
+ htmlBlocks <- many1 rawHtmlBlock
let combined = concatMap (\(RawHtml str) -> str) htmlBlocks
let combined' = if not (null combined) && last combined == '\n'
- then init combined -- strip extra newline
- else combined
+ then init combined -- strip extra newline
+ else combined
return $ RawHtml combined'
--
@@ -535,7 +516,7 @@ rawLaTeXEnvironment' = failIfStrict >> rawLaTeXEnvironment
--
-- Tables
---
+--
-- Parse a dashed line with optional trailing spaces; return its length
-- and the length including trailing space.
@@ -544,7 +525,7 @@ dashedLine ch = do
sp <- many spaceChar
return $ (length dashes, length $ dashes ++ sp)
--- Parse a table header with dashed lines of '-' preceded by
+-- Parse a table header with dashed lines of '-' preceded by
-- one line of text.
simpleTableHeader = try $ do
rawContent <- anyLine
@@ -567,7 +548,7 @@ tableSep = try $ nonindentSpaces >> many1 (dashedLine '-') >> string "\n"
rawTableLine indices = do
notFollowedBy' (blanklines <|> tableFooter)
line <- many1Till anyChar newline
- return $ map removeLeadingTrailingSpace $ tail $
+ return $ map removeLeadingTrailingSpace $ tail $
splitByIndices (init indices) line
-- Parse a table line and return a list of lists of blocks (columns).
@@ -584,8 +565,8 @@ multilineRow indices = do
widthsFromIndices :: Int -- Number of columns on terminal
-> [Int] -- Indices
-> [Float] -- Fractional relative sizes of columns
-widthsFromIndices _ [] = []
-widthsFromIndices numColumns indices =
+widthsFromIndices _ [] = []
+widthsFromIndices numColumns indices =
let lengths = zipWith (-) indices (0:indices)
totLength = sum lengths
quotient = if totLength > numColumns
@@ -624,14 +605,14 @@ simpleTable = tableWith simpleTableHeader tableLine blanklines
multilineTable = tableWith multilineTableHeader multilineRow tableFooter
multilineTableHeader = try $ do
- tableSep
+ tableSep
rawContent <- many1 (notFollowedBy' tableSep >> many1Till anyChar newline)
initSp <- nonindentSpaces
dashes <- many1 (dashedLine '-')
newline
let (lengths, lines) = unzip dashes
let indices = scanl (+) (length initSp) lines
- let rawHeadsList = transpose $ map
+ let rawHeadsList = transpose $ map
(\ln -> tail $ splitByIndices (init indices) ln)
rawContent
let rawHeads = map (joinWithSep " ") rawHeadsList
@@ -644,7 +625,7 @@ multilineTableHeader = try $ do
alignType :: [String] -> Int -> Alignment
alignType [] len = AlignDefault
alignType strLst len =
- let str = head $ sortBy (comparing length) $
+ let str = head $ sortBy (comparing length) $
map removeTrailingSpace strLst
leftSpace = if null str then False else (str !! 0) `elem` " \t"
rightSpace = length str < len || (str !! (len - 1)) `elem` " \t"
@@ -656,7 +637,7 @@ alignType strLst len =
table = failIfStrict >> (simpleTable <|> multilineTable) <?> "table"
---
+--
-- inline
--
@@ -686,7 +667,7 @@ inline = choice [ str
escapedChar = do
char '\\'
state <- getState
- result <- option '\\' $ if stateStrict state
+ result <- option '\\' $ if stateStrict state
then oneOf "\\`*_{}[]()>#+-.!~"
else satisfy (not . isAlphaNum)
return $ Str [result]
@@ -700,17 +681,17 @@ ltSign = do
specialCharsMinusLt = filter (/= '<') specialChars
-symbol = do
+symbol = do
result <- oneOf specialCharsMinusLt
return $ Str [result]
-- parses inline code, between n `s and n `s
-code = try $ do
+code = try $ do
starts <- many1 (char '`')
skipSpaces
result <- many1Till (many1 (noneOf "`\n") <|> many1 (char '`') <|>
- (char '\n' >> return " "))
- (try (skipSpaces >> count (length starts) (char '`') >>
+ (char '\n' >> return " "))
+ (try (skipSpaces >> count (length starts) (char '`') >>
notFollowedBy (char '`')))
return $ Code $ removeLeadingTrailingSpace $ concat result
@@ -726,30 +707,30 @@ math = try $ do
return $ TeX ("$" ++ (joinWithSep " " words) ++ "$")
emph = ((enclosed (char '*') (char '*') inline) <|>
- (enclosed (char '_') (char '_' >> notFollowedBy alphaNum) inline)) >>=
+ (enclosed (char '_') (char '_' >> notFollowedBy alphaNum) inline)) >>=
return . Emph . normalizeSpaces
-strong = ((enclosed (string "**") (try $ string "**") inline) <|>
+strong = ((enclosed (string "**") (try $ string "**") inline) <|>
(enclosed (string "__") (try $ string "__") inline)) >>=
return . Strong . normalizeSpaces
strikeout = failIfStrict >> enclosed (string "~~") (try $ string "~~") inline >>=
return . Strikeout . normalizeSpaces
-superscript = failIfStrict >> enclosed (char '^') (char '^')
+superscript = failIfStrict >> enclosed (char '^') (char '^')
(notFollowedBy' whitespace >> inline) >>= -- may not contain Space
return . Superscript
subscript = failIfStrict >> enclosed (char '~') (char '~')
(notFollowedBy' whitespace >> inline) >>= -- may not contain Space
- return . Subscript
+ return . Subscript
-smartPunctuation = failUnlessSmart >>
+smartPunctuation = failUnlessSmart >>
choice [ quoted, apostrophe, dash, ellipses ]
apostrophe = (char '\'' <|> char '\8217') >> return Apostrophe
-quoted = doubleQuoted <|> singleQuoted
+quoted = doubleQuoted <|> singleQuoted
withQuoteContext context parser = do
oldState <- getState
@@ -765,7 +746,7 @@ singleQuoted = try $ do
withQuoteContext InSingleQuote $ many1Till inline singleQuoteEnd >>=
return . Quoted SingleQuote . normalizeSpaces
-doubleQuoted = try $ do
+doubleQuoted = try $ do
doubleQuoteStart
withQuoteContext InDoubleQuote $ many1Till inline doubleQuoteEnd >>=
return . Quoted DoubleQuote . normalizeSpaces
@@ -776,13 +757,13 @@ failIfInQuoteContext context = do
then fail "already inside quotes"
else return ()
-singleQuoteStart = do
+singleQuoteStart = do
failIfInQuoteContext InSingleQuote
- char '\8216' <|>
- (try $ do char '\''
+ char '\8216' <|>
+ (try $ do char '\''
notFollowedBy (oneOf ")!],.;:-? \t\n")
notFollowedBy (try (oneOfStrings ["s","t","m","ve","ll","re"] >>
- satisfy (not . isAlphaNum)))
+ satisfy (not . isAlphaNum)))
-- possess/contraction
return '\'')
@@ -826,13 +807,13 @@ endline = try $ do
newline
notFollowedBy blankline
st <- getState
- if stateStrict st
+ if stateStrict st
then do notFollowedBy emailBlockQuoteStart
notFollowedBy (char '#') -- atx header
- else return ()
+ else return ()
-- parse potential list-starts differently if in a list:
if stateParserContext st == ListItemState
- then notFollowedBy' (bulletListStart <|>
+ then notFollowedBy' (bulletListStart <|>
(anyOrderedListStart >> return ()))
else return ()
return Space
@@ -846,7 +827,7 @@ reference = notFollowedBy' (string "[^") >> -- footnote reference
inlinesInBalanced "[" "]" >>= (return . normalizeSpaces)
-- source for a link, with optional title
-source = try $ do
+source = try $ do
char '('
optional (char '<')
src <- many (noneOf ")> \t\n")
@@ -856,7 +837,7 @@ source = try $ do
char ')'
return (removeTrailingSpace src, tit)
-linkTitle = try $ do
+linkTitle = try $ do
(many1 spaceChar >> option '\n' newline) <|> newline
skipSpaces
delim <- char '\'' <|> char '"'
@@ -871,13 +852,13 @@ link = try $ do
-- a link like [this][ref] or [this][] or [this]
referenceLink label = do
- ref <- option [] (try (optional (char ' ') >>
+ ref <- option [] (try (optional (char ' ') >>
optional (newline >> skipSpaces) >> reference))
let ref' = if null ref then label else ref
state <- getState
case lookupKeySrc (stateKeys state) ref' of
- Nothing -> fail "no corresponding key"
- Just target -> return target
+ Nothing -> fail "no corresponding key"
+ Just target -> return target
emailAddress = try $ do
name <- many1 (alphaNum <|> char '+')
@@ -898,7 +879,7 @@ autoLink = try $ do
char '>'
let src' = if "mailto:" `isPrefixOf` src
then drop 7 src
- else src
+ else src
st <- getState
return $ if stateStrict st
then Link [Str src'] (src, "")
@@ -929,7 +910,7 @@ rawLaTeXInline' = failIfStrict >> rawLaTeXInline
rawHtmlInline' = do
st <- getState
result <- choice $ if stateStrict st
- then [htmlBlockElement, anyHtmlTag, anyHtmlEndTag]
+ then [htmlBlockElement, anyHtmlTag, anyHtmlEndTag]
else [htmlBlockElement, anyHtmlInlineTag]
return $ HtmlInline result
diff --git a/src/Text/Pandoc/Shared.hs b/src/Text/Pandoc/Shared.hs
index 5fb1306af..626679025 100644
--- a/src/Text/Pandoc/Shared.hs
+++ b/src/Text/Pandoc/Shared.hs
@@ -34,7 +34,6 @@ module Text.Pandoc.Shared (
substitute,
joinWithSep,
-- * Text processing
- isPunctuation,
backslashEscapes,
escapeStringUsing,
stripTrailingNewlines,
@@ -92,7 +91,6 @@ module Text.Pandoc.Shared (
Element (..),
hierarchicalize,
isHeaderBlock,
- uniqueIdentifiers,
-- * Writer options
WriterOptions (..),
defaultWriterOptions
@@ -104,7 +102,7 @@ import Text.PrettyPrint.HughesPJ ( Doc, fsep, ($$), (<>), empty )
import qualified Text.PrettyPrint.HughesPJ as PP
import Text.Pandoc.CharacterReferences ( characterReference )
import Data.Char ( toLower, toUpper, ord, isLower, isUpper )
-import Data.List ( find, isPrefixOf, intersperse )
+import Data.List ( find, isPrefixOf )
import Control.Monad ( join )
--
@@ -146,15 +144,6 @@ joinWithSep sep lst = foldr1 (\a b -> a ++ sep ++ b) lst
-- Text processing
--
--- | True if character is a punctuation character (unicode).
-isPunctuation :: Char -> Bool
-isPunctuation c =
- let c' = ord c
- in if c `elem` "!\"'()*,-./:;<>?[\\]`{|}~" || c' >= 0x2000 && c' <= 0x206F ||
- c' >= 0xE000 && c' <= 0xE0FF
- then True
- else False
-
-- | Returns an association list of backslash escapes for the
-- designated characters.
backslashEscapes :: [Char] -- ^ list of special characters to escape
@@ -580,8 +569,7 @@ data ParserState = ParserState
stateStrict :: Bool, -- ^ Use strict markdown syntax?
stateSmart :: Bool, -- ^ Use smart typography?
stateColumns :: Int, -- ^ Number of columns in terminal
- stateHeaderTable :: [HeaderType], -- ^ Ordered list of header types used
- stateHeaders :: [[Inline]] -- ^ List of header texts used
+ stateHeaderTable :: [HeaderType] -- ^ Ordered list of header types used
}
deriving Show
@@ -600,8 +588,7 @@ defaultParserState =
stateStrict = False,
stateSmart = False,
stateColumns = 80,
- stateHeaderTable = [],
- stateHeaders = [] }
+ stateHeaderTable = [] }
data HeaderType
= SingleHeader Char -- ^ Single line of characters underneath
@@ -803,43 +790,6 @@ isHeaderBlock :: Block -> Bool
isHeaderBlock (Header _ _) = True
isHeaderBlock _ = False
--- | Convert Pandoc inline list to plain text identifier.
-inlineListToIdentifier :: [Inline] -> String
-inlineListToIdentifier [] = ""
-inlineListToIdentifier (x:xs) =
- xAsText ++ inlineListToIdentifier xs
- where xAsText = case x of
- Str s -> filter (\c -> c == '-' || not (isPunctuation c)) $
- concat $ intersperse "-" $ words $ map toLower s
- Emph lst -> inlineListToIdentifier lst
- Strikeout lst -> inlineListToIdentifier lst
- Superscript lst -> inlineListToIdentifier lst
- Subscript lst -> inlineListToIdentifier lst
- Strong lst -> inlineListToIdentifier lst
- Quoted _ lst -> inlineListToIdentifier lst
- Code s -> s
- Space -> "-"
- EmDash -> "-"
- EnDash -> "-"
- Apostrophe -> ""
- Ellipses -> ""
- LineBreak -> "-"
- TeX _ -> ""
- HtmlInline _ -> ""
- Link lst _ -> inlineListToIdentifier lst
- Image lst _ -> inlineListToIdentifier lst
- Note _ -> ""
-
--- | Return unique identifiers for list of inline lists.
-uniqueIdentifiers :: [[Inline]] -> [String]
-uniqueIdentifiers ls =
- let addIdentifier (nonuniqueIds, uniqueIds) l =
- let new = inlineListToIdentifier l
- matches = length $ filter (== new) nonuniqueIds
- new' = new ++ if matches > 0 then ("-" ++ show matches) else ""
- in (new:nonuniqueIds, new':uniqueIds)
- in reverse $ snd $ foldl addIdentifier ([],[]) ls
-
--
-- Writer options
--
diff --git a/src/Text/Pandoc/Writers/HTML.hs b/src/Text/Pandoc/Writers/HTML.hs
index 56ca5ca48..7ec95d8ef 100644
--- a/src/Text/Pandoc/Writers/HTML.hs
+++ b/src/Text/Pandoc/Writers/HTML.hs
@@ -193,6 +193,15 @@ obfuscateChar char =
obfuscateString :: String -> String
obfuscateString = concatMap obfuscateChar . decodeCharacterReferences
+-- | True if character is a punctuation character (unicode).
+isPunctuation :: Char -> Bool
+isPunctuation c =
+ let c' = ord c
+ in if c `elem` "!\"'()*,-./:;<>?[\\]`{|}~" || c' >= 0x2000 && c' <= 0x206F ||
+ c' >= 0xE000 && c' <= 0xE0FF
+ then True
+ else False
+
-- | Add CSS for document header.
addToCSS :: String -> State WriterState ()
addToCSS item = do
@@ -200,6 +209,43 @@ addToCSS item = do
let current = stCSS st
put $ st {stCSS = S.insert item current}
+-- | Convert Pandoc inline list to plain text identifier.
+inlineListToIdentifier :: [Inline] -> String
+inlineListToIdentifier [] = ""
+inlineListToIdentifier (x:xs) =
+ xAsText ++ inlineListToIdentifier xs
+ where xAsText = case x of
+ Str s -> filter (\c -> c == '-' || not (isPunctuation c)) $
+ concat $ intersperse "-" $ words $ map toLower s
+ Emph lst -> inlineListToIdentifier lst
+ Strikeout lst -> inlineListToIdentifier lst
+ Superscript lst -> inlineListToIdentifier lst
+ Subscript lst -> inlineListToIdentifier lst
+ Strong lst -> inlineListToIdentifier lst
+ Quoted _ lst -> inlineListToIdentifier lst
+ Code s -> s
+ Space -> "-"
+ EmDash -> "-"
+ EnDash -> "-"
+ Apostrophe -> ""
+ Ellipses -> ""
+ LineBreak -> "-"
+ TeX _ -> ""
+ HtmlInline _ -> ""
+ Link lst _ -> inlineListToIdentifier lst
+ Image lst _ -> inlineListToIdentifier lst
+ Note _ -> ""
+
+-- | Return unique identifiers for list of inline lists.
+uniqueIdentifiers :: [[Inline]] -> [String]
+uniqueIdentifiers ls =
+ let addIdentifier (nonuniqueIds, uniqueIds) l =
+ let new = inlineListToIdentifier l
+ matches = length $ filter (== new) nonuniqueIds
+ new' = new ++ if matches > 0 then ("-" ++ show matches) else ""
+ in (new:nonuniqueIds, new':uniqueIds)
+ in reverse $ snd $ foldl addIdentifier ([],[]) ls
+
-- | Convert Pandoc block element to HTML.
blockToHtml :: WriterOptions -> Block -> State WriterState Html
blockToHtml opts Null = return $ noHtml