Use CPP to simplify build procedure for Highlighting.hs module.

This is no longer built by Setup.hs in the pre-configure phase.


git-svn-id: https://pandoc.googlecode.com/svn/trunk@1339 788f1e2b-df1e-0410-8736-df70ead52e1b

Setup.hs

@@ -22,14 +22,6 @@ myPostConf _ configFlags pkgDescription buildInfo = do
   fillAsciiMathMLTemplate
   fillS5WriterTemplate
   fillDefaultHeadersTemplate
-  let deps = packageDeps buildInfo
-  let highlighting = any (\id -> pkgName id == "highlighting-kate") deps 
-  let highlightingModule = if highlighting
-                              then combine "templates" "Highlighting.yes.hs"
-                              else combine "templates" "Highlighting.no.hs"
-  copyFile highlightingModule $ joinPath ["Text", "Pandoc", "Highlighting.hs"] 
-  putStrLn $ "  Text/Pandoc/Highlighting.hs [" ++ 
-             (if highlighting then "with" else "without") ++ " syntax highlighting support]"
 
 -- Fill templateFile with data in dataFiles and write to outputFile.
 fillTemplate :: [FilePath] -> FilePath -> FilePath -> IO ()
@@ -61,7 +53,6 @@ myPostClean _ _ _ _ = do
   putStrLn "Removing source files generated from templates:"
   removeGeneratedFile $ joinPath [pandocPath, "ASCIIMathML.hs"]
   removeGeneratedFile $ joinPath [pandocPath, "DefaultHeaders.hs"]
-  removeGeneratedFile $ joinPath [pandocPath, "Highlighting.hs"]
   removeGeneratedFile $ joinPath [pandocPath, "Writers", "S5.hs"]
 
 -- Remove file and print message.

Text/Pandoc/Highlighting.hs

@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-
 Copyright (C) 2008 John MacFarlane <jgm@berkeley.edu>
 
@@ -29,12 +30,13 @@ Exports functions for syntax highlighting.
 -}
 
 module Text.Pandoc.Highlighting ( languages, highlightHtml, defaultHighlightingCss ) where
-import Text.Highlighting.Kate ( languages, highlightAs, formatAsXHtml, FormatOption (..), defaultHighlightingCss )
 import Text.XHtml
+import Text.Pandoc.Definition
+#ifdef HIGHLIGHTING
+import Text.Highlighting.Kate ( languages, highlightAs, formatAsXHtml, FormatOption (..), defaultHighlightingCss )
 import Data.List (find, lookup)
 import Data.Maybe (fromMaybe)
 import Data.Char (toLower)
-import Text.Pandoc.Definition
 
 highlightHtml :: Attr -> String -> Either String Html
 highlightHtml (_, classes, keyvals) rawCode =
@@ -50,3 +52,13 @@ highlightHtml (_, classes, keyvals) rawCode =
                                Left err -> Left err
                                Right hl -> Right $ formatAsXHtml fmtOpts lang hl
 
+#else
+defaultHighlightingCss :: String
+defaultHighlightingCss = ""
+
+languages :: [String]
+languages = []
+
+highlightHtml :: Attr -> String -> Either String Html
+highlightHtml _ _ = Left "Pandoc was not compiled with support for highlighting"
+#endif

pandoc.cabal

@@ -47,6 +47,7 @@ Library
     Build-Depends: base < 3
   if flag(highlighting)
     Build-depends: highlighting-kate
+    cpp-options:   -DHIGHLIGHTING
   Build-Depends: parsec < 3, xhtml, mtl, network, filepath
   Hs-Source-Dirs:  .
   Exposed-Modules: Text.Pandoc,

templates/Highlighting.no.hs

@@ -1,42 +0,0 @@
-{-
-Copyright (C) 2008 John MacFarlane <jgm@berkeley.edu>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
--}
-
-{- |
-   Module      : Text.Pandoc.Highlighting
-   Copyright   : Copyright (C) 2008 John MacFarlane
-   License     : GNU GPL, version 2 or above 
-
-   Maintainer  : John MacFarlane <jgm@berkeley.edu>
-   Stability   : alpha
-   Portability : portable
-
-Exports functions for syntax highlighting.
--}
-
-module Text.Pandoc.Highlighting ( languages, highlightHtml, defaultHighlightingCss ) where
-import Text.XHtml
-import Text.Pandoc.Definition
-
-defaultHighlightingCss :: String
-defaultHighlightingCss = ""
-
-languages :: [String]
-languages = []
-
-highlightHtml :: Attr -> String -> Either String Html
-highlightHtml _ _ = Left "Pandoc was not compiled with support for highlighting"