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Diffstat (limited to 'src/Text/Pandoc/Shared.hs')
| -rw-r--r-- | src/Text/Pandoc/Shared.hs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/Text/Pandoc/Shared.hs b/src/Text/Pandoc/Shared.hs index 412de99a0..9f48080b8 100644 --- a/src/Text/Pandoc/Shared.hs +++ b/src/Text/Pandoc/Shared.hs @@ -79,6 +79,7 @@ module Text.Pandoc.Shared ( makeMeta, eastAsianLineBreakFilter, underlineSpan, + splitSentences, -- * TagSoup HTML handling renderTags', -- * File handling @@ -582,6 +583,31 @@ eastAsianLineBreakFilter = bottomUp go underlineSpan :: Inlines -> Inlines underlineSpan = B.spanWith ("", ["underline"], []) +-- | Returns the first sentence in a list of inlines, and the rest. +breakSentence :: [Inline] -> ([Inline], [Inline]) +breakSentence [] = ([],[]) +breakSentence xs = + let isSentenceEndInline (Str ys@(_:_)) | last ys == '.' = True + isSentenceEndInline (Str ys@(_:_)) | last ys == '?' = True + isSentenceEndInline LineBreak = True + isSentenceEndInline _ = False + (as, bs) = break isSentenceEndInline xs + in case bs of + [] -> (as, []) + [c] -> (as ++ [c], []) + (c:Space:cs) -> (as ++ [c], cs) + (c:SoftBreak:cs) -> (as ++ [c], cs) + (Str ".":Str (')':ys):cs) -> (as ++ [Str ".", Str (')':ys)], cs) + (x@(Str ('.':')':_)):cs) -> (as ++ [x], cs) + (LineBreak:x@(Str ('.':_)):cs) -> (as ++[LineBreak], x:cs) + (c:cs) -> (as ++ [c] ++ ds, es) + where (ds, es) = breakSentence cs + +-- | Split a list of inlines into sentences. +splitSentences :: [Inline] -> [[Inline]] +splitSentences xs = + let (sent, rest) = breakSentence xs + in if null rest then [sent] else sent : splitSentences rest -- -- TagSoup HTML handling |