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50 lines
2 KiB
Python
50 lines
2 KiB
Python
# ext/babelplugin.py
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# Copyright (C) 2006-2016 the Mako authors and contributors <see AUTHORS file>
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#
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# This module is part of Mako and is released under
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# the MIT License: http://www.opensource.org/licenses/mit-license.php
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"""gettext message extraction via Babel: http://babel.edgewall.org/"""
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from babel.messages.extract import extract_python
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from mako.ext.extract import MessageExtractor
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class BabelMakoExtractor(MessageExtractor):
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def __init__(self, keywords, comment_tags, options):
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self.keywords = keywords
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self.options = options
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self.config = {
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'comment-tags': u' '.join(comment_tags),
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'encoding': options.get('input_encoding',
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options.get('encoding', None)),
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}
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super(BabelMakoExtractor, self).__init__()
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def __call__(self, fileobj):
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return self.process_file(fileobj)
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def process_python(self, code, code_lineno, translator_strings):
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comment_tags = self.config['comment-tags']
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for lineno, funcname, messages, python_translator_comments \
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in extract_python(code,
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self.keywords, comment_tags, self.options):
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yield (code_lineno + (lineno - 1), funcname, messages,
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translator_strings + python_translator_comments)
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def extract(fileobj, keywords, comment_tags, options):
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"""Extract messages from Mako templates.
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:param fileobj: the file-like object the messages should be extracted from
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:param keywords: a list of keywords (i.e. function names) that should be
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recognized as translation functions
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:param comment_tags: a list of translator tags to search for and include
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in the results
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:param options: a dictionary of additional options (optional)
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:return: an iterator over ``(lineno, funcname, message, comments)`` tuples
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:rtype: ``iterator``
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"""
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extractor = BabelMakoExtractor(keywords, comment_tags, options)
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for message in extractor(fileobj):
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yield message
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