Find Numix SVGs with arcs that QtSvg cannot render properly

numix-find-broken.py

#!/usr/bin/env python


from re import finditer
from glob import iglob
from os.path import basename, splitext
from collections import defaultdict


def main():
  num = r"((\d+(\.\d*)?)|(\.\d+))"
  signed = rf"[+-]?{num}"
  flag = r"[01]"
  # The problem lies in not having a separator (space or +/- sign) after a flag
  # and the bad parsing code consuming more than one 0/1 character for a flag
  pattern = rf"(?P<start>[aA]\s*{num}\s+{num}\s*{signed}\s+{flag})(?P<sep1>\s*)(?P<flag2>{flag})(?P<sep2>\s*[+-]?)(?P<end>{num}\s*{signed})"

  issues_dict = defaultdict(list)
  for file_path in iglob("icons/circle/48/*.svg"):
    file_name = splitext(basename(file_path))[0]
    with open(file_path, "r") as file:
      for line in file:
        for match in finditer(pattern, line):
          if len(match['sep1']) < 1 or len(match['sep2']) < 1:
            issues_dict[file_name].append(match)
  for file_name in sorted(issues_dict):
    print(file_name)
    for match in issues_dict[file_name]:
      print(f" -> {match.group()}")
      print(f"    {match['start']}{match['sep1'] or ' '}{match['flag2']}{match['sep2'] or ' '}{match['end']}")
  print(f"{sum(len(matches) for matches in issues_dict.values())} issues in {len(issues_dict)} files to fix")


if __name__ == '__main__':
  main()