2022-02-03 16:25:35 +01:00
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# SPDX-License-Identifier: AGPL-3.0-or-later
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"""This module implements the :origin:`searxng_msg <babel.cfg>` extractor to
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extract messages from:
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2022-02-03 16:33:58 +01:00
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- :origin:`searx/searxng.msg`
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2022-02-03 16:25:35 +01:00
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The ``searxng.msg`` files are selected by Babel_, see Babel's configuration in
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:origin:`babel.cfg`::
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searxng_msg = searx.babel_extract.extract
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...
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[searxng_msg: **/searxng.msg]
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A ``searxng.msg`` file is a python file that is *executed* by the
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:py:obj:`extract` function. Additional ``searxng.msg`` files can be added by:
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1. Adding a ``searxng.msg`` file in one of the SearXNG python packages and
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2. implement a method in :py:obj:`extract` that yields messages from this file.
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.. _Babel: https://babel.pocoo.org/en/latest/index.html
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"""
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from os import path
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SEARXNG_MSG_FILE = "searxng.msg"
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2022-02-03 16:33:58 +01:00
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_MSG_FILES = [path.join(path.dirname(__file__), SEARXNG_MSG_FILE)]
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2022-02-03 16:25:35 +01:00
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def extract(
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# pylint: disable=unused-argument
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fileobj,
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keywords,
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comment_tags,
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options,
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):
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"""Extract messages from ``searxng.msg`` files by a custom extractor_.
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.. _extractor:
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https://babel.pocoo.org/en/latest/messages.html#writing-extraction-methods
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"""
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if fileobj.name not in _MSG_FILES:
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raise RuntimeError("don't know how to extract messages from %s" % fileobj.name)
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namespace = {}
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exec(fileobj.read(), {}, namespace) # pylint: disable=exec-used
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for name in namespace['__all__']:
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for k, v in namespace[name].items():
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yield 0, '_', v, ["%s['%s']" % (name, k)]
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