Initial Commit

lib/mako/ext/babelplugin.py

@@ -0,0 +1,49 @@
+# ext/babelplugin.py
+# Copyright (C) 2006-2015 the Mako authors and contributors <see AUTHORS file>
+#
+# This module is part of Mako and is released under
+# the MIT License: http://www.opensource.org/licenses/mit-license.php
+
+"""gettext message extraction via Babel: http://babel.edgewall.org/"""
+from babel.messages.extract import extract_python
+from mako.ext.extract import MessageExtractor
+
+
+class BabelMakoExtractor(MessageExtractor):
+    def __init__(self, keywords, comment_tags, options):
+        self.keywords = keywords
+        self.options = options
+        self.config = {
+                'comment-tags': u' '.join(comment_tags),
+                'encoding': options.get('input_encoding',
+                    options.get('encoding', None)),
+            }
+        super(BabelMakoExtractor, self).__init__()
+
+    def __call__(self, fileobj):
+        return self.process_file(fileobj)
+
+    def process_python(self, code, code_lineno, translator_strings):
+        comment_tags = self.config['comment-tags']
+        for lineno, funcname, messages, python_translator_comments \
+                in extract_python(code,
+                        self.keywords, comment_tags, self.options):
+            yield (code_lineno + (lineno - 1), funcname, messages,
+                   translator_strings + python_translator_comments)
+
+
+def extract(fileobj, keywords, comment_tags, options):
+    """Extract messages from Mako templates.
+
+    :param fileobj: the file-like object the messages should be extracted from
+    :param keywords: a list of keywords (i.e. function names) that should be
+                     recognized as translation functions
+    :param comment_tags: a list of translator tags to search for and include
+                         in the results
+    :param options: a dictionary of additional options (optional)
+    :return: an iterator over ``(lineno, funcname, message, comments)`` tuples
+    :rtype: ``iterator``
+    """
+    extractor = BabelMakoExtractor(keywords, comment_tags, options)
+    for message in extractor(fileobj):
+        yield message