1 files changed, 61 insertions, 0 deletions
diff --git a/content/resources/rst_graphviz/rst2html.py b/content/resources/rst_graphviz/rst2html.py
new file mode 100755
index 0000000..ab09012
--- /dev/null
+++ b/content/resources/rst_graphviz/rst2html.py
@@ -0,0 +1,61 @@
+#!/usr/bin/python
+
+# $Id: rst2html.py 4564 2006-05-21 20:44:42Z wiemann $
+# Author: David Goodger <goodger@python.org>
+# Copyright: This module has been placed in the public domain.
+
+"""
+A minimal front end to the Docutils Publisher, producing HTML.
+"""
+
+try:
+    import locale
+    locale.setlocale(locale.LC_ALL, '')
+except:
+    pass
+
+import subprocess
+import os.path
+
+from docutils.core import publish_cmdline, default_description
+from docutils.parsers.rst import directives
+from docutils.parsers.rst.directives.images import Figure
+
+
+description = ('Generates (X)HTML documents from standalone reStructuredText '
+               'sources.  ' + default_description)
+
+class Graphviz(Figure):
+    """ Generate a graphviz image
+    """
+    required_arguments = 0
+    optional_arguments = 1
+    final_argument_whitespace = True
+
+    has_content = True
+
+    option_spec = Figure.option_spec.copy()
+
+    def run(self):
+
+        text = '\n'.join(self.content)
+        extension = 'png'
+        imageFile = "tmp/%s.%s" % (hash(text), extension)
+        if not os.path.exists(imageFile):
+            conversion = subprocess.Popen(['/usr/bin/dot',
+                '-T', 'png',
+                '-o', imageFile,
+                ],
+                stdin=subprocess.PIPE
+                )
+            conversion.communicate(text)
+            conversion.wait()
+
+        self.arguments = [imageFile]
+        self.options['scale'] = 50
+        self.content = None
+        return Figure.run(self)
+
+directives.register_directive('graphviz', Graphviz)
+
+publish_cmdline(writer_name='html', description=description)