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import sys
from typing import List
import argparse
import re
# Usage: re_replace.py --from-re <REGEXP> --to-re <REGEXP_REPLACE> FILE [FILE ...]
def patch_line(line: str, from_re: re.Pattern, to_re: str) -> str:
return re.sub(from_re, to_re, line)
def main(args: List[str]):
argparser = argparse.ArgumentParser(allow_abbrev=False)
argparser.add_argument('--from-re', required=True)
argparser.add_argument('--to-re', required=True)
parsed_args, files = argparser.parse_known_args(args=args)
from_re = re.compile(parsed_args.from_re)
if not files:
raise Exception('No input files')
patched_files = []
skipped_files = []
for file in files:
patched = False
with open(file, 'r') as f:
lines = f.readlines()
for i in range(len(lines)):
line = lines[i]
patched_line = patch_line(line, from_re, parsed_args.to_re)
if patched_line != line:
patched = True
lines[i] = patched_line
if patched:
with open(file, 'w') as f:
f.writelines(lines)
patched_files.append(file)
else:
skipped_files.append(file)
if patched_files:
print("Patched by re_replace: " + ", ".join(patched_files))
if skipped_files:
print("Skipped by re_replace: " + ", ".join(skipped_files))
if __name__ == '__main__':
main(sys.argv[1:])
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