From 4fdd092d9102b994eea81fca6419877477b75e84 Mon Sep 17 00:00:00 2001
From: smerten <smerten@929543f6-e4f2-0310-98a6-ba3bd3dd1d04>
Date: Wed, 26 Nov 2008 22:59:52 +0000
Subject: [PATCH] Class `handout` is removed.

git-svn-id: https://docutils.svn.sourceforge.net/svnroot/docutils/trunk@5735 929543f6-e4f2-0310-98a6-ba3bd3dd1d04
---
 sandbox/rst2beamer/latexbeamer/__init__.py | 31 +++++++++++++++++++++++++++++-
 sandbox/rst2beamer/tools/rst2beamer.py     |  5 ++++-
 2 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/sandbox/rst2beamer/latexbeamer/__init__.py b/sandbox/rst2beamer/latexbeamer/__init__.py
index b006c1b43..c7773afa5 100644
--- a/sandbox/rst2beamer/latexbeamer/__init__.py
+++ b/sandbox/rst2beamer/latexbeamer/__init__.py
@@ -6,6 +6,8 @@ __docformat__ = 'reStructuredText'
 
 from docutils import frontend, nodes
 from docutils.writers import latex2e
+from docutils.readers import standalone
+from docutils.transforms import references, Transform, TransformError
 
 class Writer(latex2e.Writer):
 
@@ -253,4 +255,31 @@ class BeamerTranslator(latex2e.LaTeXTranslator):
         return ''.join(self.head_prefix + [head] + self.head + [pdfinfo]
                         + self.body_prefix  + self.body + self.body_suffix)
 
-# TODO Class `handout` must be suppressed - may be by a preprocessor
+# Use an own reader to modify transformations done.
+class Reader(standalone.Reader):
+
+    def get_transforms(self):
+        default = standalone.Reader.get_transforms(self)
+        return ([ i
+                  for i in default
+                  if i is not references.DanglingReferences ]
+                + [ RemoveClassHandout, ])
+
+class RemoveClassHandout(Transform):
+
+    """
+    Remove all elements with a given class attribute.
+    """
+
+    classToRemove = 'handout'
+
+    # Must be less than
+    # docutils.transforms.misc.ClassAttribute.default_priority
+    default_priority = 120
+
+    def apply(self):
+        for node in self.document.traverse(nodes.Element):
+            if node.has_key('classes'):
+                if self.classToRemove in node['classes']:
+                    if node.parent:
+                        node.parent.remove(node)
diff --git a/sandbox/rst2beamer/tools/rst2beamer.py b/sandbox/rst2beamer/tools/rst2beamer.py
index dc461f063..c322c5d31 100755
--- a/sandbox/rst2beamer/tools/rst2beamer.py
+++ b/sandbox/rst2beamer/tools/rst2beamer.py
@@ -18,8 +18,11 @@ except:
 
 from docutils.core import publish_cmdline, default_description
 
+from docutils.writers.latexbeamer import Writer, Reader
 
 description = ('Generates LaTeX Beamer documents from standalone reStructuredText '
                'sources.  ' + default_description)
 
-publish_cmdline(writer_name='latexbeamer', description=description)
+writer = Writer()
+reader = Reader()
+publish_cmdline(reader=reader, writer=writer, description=description)
-- 
2.11.4.GIT