Description: use online LaTeXMathML.js by default
Author: Jonas Smedegaard <dr@jones.dk>
Last-Update: 2017-07-21
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- a/pandoc.hs
+++ b/pandoc.hs
@@ -818,8 +818,11 @@
 
     , Option "m" ["latexmathml", "asciimathml"]
                  (OptArg
-                  (\arg opt ->
-                      return opt { optHTMLMathMethod = LaTeXMathML arg })
+                  (\arg opt -> do
+                      let url' = case arg of
+                                      Just u   -> u
+                                      Nothing  -> "http://math.etsu.edu/LaTeXMathML/LaTeXMathML.js"
+                      return opt { optHTMLMathMethod = LaTeXMathML url'})
                   "URL")
                  "" -- "Use LaTeXMathML script in html output"
 
@@ -1315,12 +1318,6 @@
                                                      in throwIO e')
                                        else throwIO e)
 
-  variables' <- case mathMethod of
-                      LaTeXMathML Nothing -> do
-                         s <- readDataFileUTF8 datadir "LaTeXMathML.js"
-                         return $ ("mathml-script", s) : variables
-                      _ -> return variables
-
   variables'' <- if format == "dzslides"
                     then do
                         dztempl <- readDataFileUTF8 datadir
@@ -1329,8 +1326,8 @@
                         let dzcore = unlines
                                    $ dropWhile (not . (dzline `isPrefixOf`))
                                    $ lines dztempl
-                        return $ ("dzslides-core", dzcore) : variables'
-                    else return variables'
+                        return $ ("dzslides-core", dzcore) : variables
+                    else return variables
 
   let sourceURL = case sources of
                     []    -> Nothing
--- a/src/Text/Pandoc/Options.hs
+++ b/src/Text/Pandoc/Options.hs
@@ -299,7 +299,7 @@
 data EPUBVersion = EPUB2 | EPUB3 deriving (Eq, Show, Read, Data, Typeable, Generic)
 
 data HTMLMathMethod = PlainMath
-                    | LaTeXMathML (Maybe String)  -- url of LaTeXMathML.js
+                    | LaTeXMathML String          -- url of LaTeXMathML.js
                     | JsMath (Maybe String)       -- url of jsMath load script
                     | GladTeX
                     | WebTeX String               -- url of TeX->image script.
--- a/src/Text/Pandoc/Writers/HTML.hs
+++ b/src/Text/Pandoc/Writers/HTML.hs
@@ -142,7 +142,7 @@
   let notes = reverse (stNotes st)
   let thebody = blocks' >> footnoteSection opts notes
   let  math = case writerHTMLMathMethod opts of
-                      LaTeXMathML (Just url) ->
+                      LaTeXMathML url ->
                          H.script ! A.src (toValue url)
                                   ! A.type_ "text/javascript"
                                   $ mempty
--- a/man/pandoc.1
+++ b/man/pandoc.1
@@ -1105,14 +1105,10 @@
 .SS Math rendering in HTML
 .TP
 .B \f[C]\-m\f[] [\f[I]URL\f[]], \f[C]\-\-latexmathml\f[][\f[C]=\f[]\f[I]URL\f[]]
-Use the LaTeXMathML script to display embedded TeX math in HTML output.
-To insert a link to a local copy of the \f[C]LaTeXMathML.js\f[] script,
-provide a \f[I]URL\f[].
-If no \f[I]URL\f[] is provided, the contents of the script will be
-inserted directly into the HTML header, preserving portability at the
-price of efficiency.
-If you plan to use math on several pages, it is much better to link to a
-copy of the script, so it can be cached.
+Use LaTeXMathML to display embedded TeX math in HTML output.
+The \f[I]URL\f[] should point to the \f[C]LaTeXMathML.js\f[] load script.
+If a \f[I]URL\f[] is not provided, a link to LaTeXMathML.js at the
+Homepage of LaTeXMathML will be inserted.
 .RS
 .RE
 .TP