1 files changed, 88 insertions, 0 deletions
diff --git a/python/helpers/docutils/parsers/rst/directives/html.py b/python/helpers/docutils/parsers/rst/directives/html.py
new file mode 100644
index 000000000000..97dfdadf9c43
--- /dev/null
+++ b/python/helpers/docutils/parsers/rst/directives/html.py
@@ -0,0 +1,88 @@
+# $Id: html.py 4667 2006-07-12 21:40:56Z wiemann $
+# Author: David Goodger <goodger@python.org>
+# Copyright: This module has been placed in the public domain.
+
+"""
+Directives for typically HTML-specific constructs.
+"""
+
+__docformat__ = 'reStructuredText'
+
+import sys
+from docutils import nodes, utils
+from docutils.parsers.rst import Directive
+from docutils.parsers.rst import states
+from docutils.transforms import components
+
+
+class MetaBody(states.SpecializedBody):
+
+    class meta(nodes.Special, nodes.PreBibliographic, nodes.Element):
+        """HTML-specific "meta" element."""
+        pass
+
+    def field_marker(self, match, context, next_state):
+        """Meta element."""
+        node, blank_finish = self.parsemeta(match)
+        self.parent += node
+        return [], next_state, []
+
+    def parsemeta(self, match):
+        name = self.parse_field_marker(match)
+        indented, indent, line_offset, blank_finish = \
+              self.state_machine.get_first_known_indented(match.end())
+        node = self.meta()
+        pending = nodes.pending(components.Filter,
+                                {'component': 'writer',
+                                 'format': 'html',
+                                 'nodes': [node]})
+        node['content'] = ' '.join(indented)
+        if not indented:
+            line = self.state_machine.line
+            msg = self.reporter.info(
+                  'No content for meta tag "%s".' % name,
+                  nodes.literal_block(line, line),
+                  line=self.state_machine.abs_line_number())
+            return msg, blank_finish
+        tokens = name.split()
+        try:
+            attname, val = utils.extract_name_value(tokens[0])[0]
+            node[attname.lower()] = val
+        except utils.NameValueError:
+            node['name'] = tokens[0]
+        for token in tokens[1:]:
+            try:
+                attname, val = utils.extract_name_value(token)[0]
+                node[attname.lower()] = val
+            except utils.NameValueError, detail:
+                line = self.state_machine.line
+                msg = self.reporter.error(
+                      'Error parsing meta tag attribute "%s": %s.'
+                      % (token, detail), nodes.literal_block(line, line),
+                      line=self.state_machine.abs_line_number())
+                return msg, blank_finish
+        self.document.note_pending(pending)
+        return pending, blank_finish
+
+
+class Meta(Directive):
+
+    has_content = True
+
+    SMkwargs = {'state_classes': (MetaBody,)}
+
+    def run(self):
+        self.assert_has_content()
+        node = nodes.Element()
+        new_line_offset, blank_finish = self.state.nested_list_parse(
+            self.content, self.content_offset, node,
+            initial_state='MetaBody', blank_finish=1,
+            state_machine_kwargs=self.SMkwargs)
+        if (new_line_offset - self.content_offset) != len(self.content):
+            # incomplete parse of block?
+            error = self.state_machine.reporter.error(
+                'Invalid meta directive.',
+                nodes.literal_block(self.block_text, self.block_text),
+                line=self.lineno)
+            node += error
+        return node.children