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38 lines
1.4 KiB
Haskell
Executable File
38 lines
1.4 KiB
Haskell
Executable File
#!/usr/bin/env runhaskell
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import Text.Pandoc.JSON
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import Text.Pandoc.Walk
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main = toJSONFilter go
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where go :: Pandoc -> Pandoc
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go = walk exampleDivs . walk anchors
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exampleDivs :: Block -> Block
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exampleDivs (Div (ident, ["example"], kvs)
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[ d@(Div (_,["examplenum"],_) _),
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c1@(CodeBlock (_,["markdown"],_) _),
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c2@(CodeBlock (_,["html"],_) _)
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]) = Div (ident, ["example"], kvs)
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[ rawtex "\\begin{minipage}[t]{\\textwidth}\n{\\scriptsize "
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, d
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, rawtex "\\vspace{-1em}}"
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, rawtex "\\begin{minipage}[t]{0.49\\textwidth}\n\\definecolor{shadecolor}{gray}{0.85}\n"
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, addBreaks c1
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, rawtex "\\end{minipage}\n\\hfill\n\\begin{minipage}[t]{0.49\\textwidth}\n\\definecolor{shadecolor}{gray}{0.95}\n"
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, addBreaks c2
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, rawtex "\\end{minipage}\n\\end{minipage}"
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]
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where rawtex = RawBlock (Format "latex")
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addBreaks (CodeBlock attrs code) = CodeBlock attrs $ addBreaks' code
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addBreaks' code =
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if length code > 49
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then take 49 code ++ ('\n':addBreaks' (drop 49 code))
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else code
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exampleDivs x = x
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anchors :: Inline -> Inline
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anchors (RawInline (Format "html") ('<':'a':' ':'i':'d':'=':'"':xs)) =
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RawInline (Format "latex") ("\\hyperdef{}{" ++ lab ++ "}{\\label{" ++ lab ++ "}}")
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where lab = takeWhile (/='"') xs
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anchors x = x
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