From 4fce1a63b1ce6faa133645a2c75e7fa3a5d1b948 Mon Sep 17 00:00:00 2001
From: John MacFarlane <fiddlosopher@gmail.com>
Date: Sat, 7 Apr 2012 16:16:43 -0700
Subject: [PATCH] LaTeX reader: Handle \bgroup, \egroup, \begingroup,
\endgroup.
---
src/Text/Pandoc/Readers/LaTeX.hs | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/src/Text/Pandoc/Readers/LaTeX.hs b/src/Text/Pandoc/Readers/LaTeX.hs
index fbd0d464b..cc71b49f2 100644
--- a/src/Text/Pandoc/Readers/LaTeX.hs
+++ b/src/Text/Pandoc/Readers/LaTeX.hs
@@ -112,18 +112,28 @@ comment = do
newline
return ()
+bgroup :: LP ()
+bgroup = () <$ char '{'
+ <|> () <$ controlSeq "bgroup"
+ <|> () <$ controlSeq "begingroup"
+
+egroup :: LP ()
+egroup = () <$ char '}'
+ <|> () <$ controlSeq "egroup"
+ <|> () <$ controlSeq "endgroup"
+
grouped :: Monoid a => LP a -> LP a
-grouped parser = try $ char '{' *> (mconcat <$> manyTill parser (char '}'))
+grouped parser = try $ bgroup *> (mconcat <$> manyTill parser egroup)
braced :: LP String
-braced = char '{' *> (concat <$> manyTill
+braced = bgroup *> (concat <$> manyTill
( many1 (satisfy (\c -> c /= '\\' && c /= '}' && c /= '{'))
<|> try (string "\\}")
<|> try (string "\\{")
<|> try (string "\\\\")
<|> ((\x -> "{" ++ x ++ "}") <$> braced)
<|> count 1 anyChar
- ) (char '}'))
+ ) egroup)
bracketed :: Monoid a => LP a -> LP a
bracketed parser = try $ char '[' *> (mconcat <$> manyTill parser (char ']'))