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#!/usr/bin/env python
"""Process subtitle text content using arbitrary Python code."""
import importlib
import srt_tools.utils
import logging
log = logging.getLogger(__name__)
def strip_to_matching_lines_only(subtitles, imports, func_str):
for import_name in imports:
real_import = importlib.import_module(import_name)
globals()[import_name] = real_import
func = eval(func_str) # pylint: disable-msg=eval-used
for subtitle in subtitles:
subtitle.content = func(subtitle.content)
yield subtitle
def parse_args():
examples = {
"Strip HTML-like symbols from a subtitle": """srt process -m re -f 'lambda sub: re.sub("<[^<]+?>", "", sub)'"""
}
parser = srt_tools.utils.basic_parser(description=__doc__, examples=examples)
parser.add_argument(
"-f", "--func", help="a function to use to process lines", required=True
)
parser.add_argument(
"-m",
"--module",
help="modules to import in the function context",
action="append",
default=[],
)
return parser.parse_args()
def main():
args = parse_args()
logging.basicConfig(level=args.log_level)
srt_tools.utils.set_basic_args(args)
processed_subs = strip_to_matching_lines_only(args.input, args.module, args.func)
output = srt_tools.utils.compose_suggest_on_fail(processed_subs, strict=args.strict)
try:
args.output.write(output)
except (UnicodeEncodeError, TypeError): # Python 2 fallback
args.output.write(output.encode(args.encoding))
if __name__ == "__main__": # pragma: no cover
main()
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