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86 lines
2.4 KiB
86 lines
2.4 KiB
3 years ago
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#!/usr/bin/env python
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"""Filter subtitles that match or don't match a particular pattern."""
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import importlib
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import srt_tools.utils
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import logging
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log = logging.getLogger(__name__)
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def strip_to_matching_lines_only(subtitles, imports, func_str, invert, per_sub):
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for import_name in imports:
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real_import = importlib.import_module(import_name)
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globals()[import_name] = real_import
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raw_func = eval(func_str) # pylint: disable-msg=eval-used
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if invert:
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func = lambda line: not raw_func(line)
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else:
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func = raw_func
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for subtitle in subtitles:
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if per_sub:
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if not func(subtitle.content):
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subtitle.content = ""
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else:
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subtitle.content = "\n".join(
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line for line in subtitle.content.splitlines() if func(line)
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)
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yield subtitle
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def parse_args():
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examples = {
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"Only include Chinese lines": "srt lines-matching -m hanzidentifier -f hanzidentifier.has_chinese",
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"Exclude all lines which only contain numbers": "srt lines-matching -v -f 'lambda x: x.isdigit()'",
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}
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parser = srt_tools.utils.basic_parser(description=__doc__, examples=examples)
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parser.add_argument(
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"-f", "--func", help="a function to use to match lines", required=True
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)
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parser.add_argument(
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"-m",
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"--module",
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help="modules to import in the function context",
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action="append",
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default=[],
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)
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parser.add_argument(
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"-s",
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"--per-subtitle",
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help="match the content of each subtitle, not each line",
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action="store_true",
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)
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parser.add_argument(
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"-v",
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"--invert",
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help="invert matching -- only match lines returning False",
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action="store_true",
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)
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return parser.parse_args()
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def main():
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args = parse_args()
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logging.basicConfig(level=args.log_level)
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srt_tools.utils.set_basic_args(args)
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matching_subtitles_only = strip_to_matching_lines_only(
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args.input, args.module, args.func, args.invert, args.per_subtitle
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)
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output = srt_tools.utils.compose_suggest_on_fail(
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matching_subtitles_only, strict=args.strict
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)
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try:
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args.output.write(output)
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except (UnicodeEncodeError, TypeError): # Python 2 fallback
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args.output.write(output.encode(args.encoding))
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if __name__ == "__main__": # pragma: no cover
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main()
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