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-rw-r--r--src/Text/Pandoc/Writers/LaTeX.hs13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/Text/Pandoc/Writers/LaTeX.hs b/src/Text/Pandoc/Writers/LaTeX.hs
index 038f27480..283c8bc44 100644
--- a/src/Text/Pandoc/Writers/LaTeX.hs
+++ b/src/Text/Pandoc/Writers/LaTeX.hs
@@ -40,7 +40,8 @@ import Text.Printf ( printf )
import Network.URI ( isURI, unEscapeString )
import Data.Aeson (object, (.=), FromJSON)
import Data.List ( (\\), isInfixOf, stripPrefix, intercalate, intersperse, nub, nubBy )
-import Data.Char ( toLower, isPunctuation, isAscii, isLetter, isDigit, ord )
+import Data.Char ( toLower, isPunctuation, isAscii, isLetter, isDigit,
+ ord, isAlphaNum )
import Data.Maybe ( fromMaybe, isJust, catMaybes )
import qualified Data.Text as T
import Control.Applicative ((<|>))
@@ -471,23 +472,27 @@ blockToLaTeX (CodeBlock (identifier,classes,keyvalAttr) str) = do
st <- get
let params = if writerListings (stOptions st)
then (case getListingsLanguage classes of
- Just l -> [ "language=" ++ l ]
+ Just l -> [ "language=" ++ mbBraced l ]
Nothing -> []) ++
[ "numbers=left" | "numberLines" `elem` classes
|| "number" `elem` classes
|| "number-lines" `elem` classes ] ++
[ (if key == "startFrom"
then "firstnumber"
- else key) ++ "=" ++ attr |
+ else key) ++ "=" ++ mbBraced attr |
(key,attr) <- keyvalAttr ] ++
(if identifier == ""
then []
else [ "label=" ++ ref ])
else []
+ mbBraced x = if not (all isAlphaNum x)
+ then "{" <> x <> "}"
+ else x
printParams
| null params = empty
- | otherwise = brackets $ hcat (intersperse ", " (map text params))
+ | otherwise = brackets $ hcat (intersperse ", "
+ (map text params))
return $ flush ("\\begin{lstlisting}" <> printParams $$ text str $$
"\\end{lstlisting}") $$ cr
let highlightedCodeBlock =