SF.net SVN: matplotlib: [5572] trunk/matplotlib/doc/sphinxext/mathpng.py

[<md...@us...>]

Revision: 5572
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=5572&view=rev
Author:   mdboom
Date:     2008-06-17 07:46:00 -0700 (Tue, 17 Jun 2008)

Log Message:
-----------
Warn when a math expression can not be rendered, rather than hard-failing.

Modified Paths:
--------------
    trunk/matplotlib/doc/sphinxext/mathpng.py

Modified: trunk/matplotlib/doc/sphinxext/mathpng.py
===================================================================
--- trunk/matplotlib/doc/sphinxext/mathpng.py	2008-06-17 14:42:31 UTC (rev 5571)
+++ trunk/matplotlib/doc/sphinxext/mathpng.py	2008-06-17 14:46:00 UTC (rev 5572)
@@ -8,6 +8,7 @@
 from docutils.parsers.rst import directives
 from docutils.writers.html4css1 import HTMLTranslator
 from sphinx.latexwriter import LaTeXTranslator
+import warnings
 
 # Define LaTeX math node:
 class latex_math(nodes.General, nodes.Element):
@@ -116,7 +117,11 @@
         return
     orig_fontset = rcParams['mathtext.fontset']
     rcParams['mathtext.fontset'] = fontset
-    mathtext_parser.to_png(filename, "$%s$" % latex, dpi=120)
+    try:
+        mathtext_parser.to_png(filename, "$%s$" % latex, dpi=120)
+    except:
+        warnings.warn("Could not render math expression $%s$" % latex,
+                      warnings.Warning)
     rcParams['mathtext.fontset'] = orig_fontset
 
 # LaTeX to HTML translation stuff:


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