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  1. Picard
  2. PICARD-1374

Picard crashes while typing a regular expression in some cases


    • Type: Bug
    • Status: Closed
    • Priority: Normal
    • Resolution: Fixed
    • Affects Version/s: 2.0.4
    • Fix Version/s: 2.1.0dev2
    • Component/s: Scripting
    • Labels:
    • Environment:
      openSUSE Tumbleweed


      If you write


      in the file naming script and then move the cursor between the comma and the closing parenthesis and start writing a regular expression like 


      then picard crashes as soon as the '[' character is entered, since it tries to parse the regular expression and the re module raises the following exception

      Traceback (most recent call last): 
        File "/usr/lib64/python3.6/site-packages/picard/ui/options/renaming.py", line 130, in check_formats 
        File "/usr/lib64/python3.6/site-packages/picard/ui/options/renaming.py", line 160, in update_examples 
          example1 = self._example_to_filename(self.example_1()) 
        File "/usr/lib64/python3.6/site-packages/picard/ui/options/renaming.py", line 148, in _example_to_filename 
          filename = file._make_filename(file.filename, file.metadata, settings) 
        File "/usr/lib64/python3.6/site-packages/picard/file.py", line 349, in _make_filename 
          new_filename = self._script_to_filename(naming_format, metadata, settings) 
        File "/usr/lib64/python3.6/site-packages/picard/file.py", line 309, in _script_to_filename 
          filename = ScriptParser().eval(naming_format, metadata, self) 
        File "/usr/lib64/python3.6/site-packages/picard/script.py", line 285, in eval 
          return ScriptParser._cache[key].eval(self) 
        File "/usr/lib64/python3.6/site-packages/picard/script.py", line 123, in eval 
        File "/usr/lib64/python3.6/site-packages/picard/script.py", line 115, in eval 
          return function(parser, *args) 
        File "/usr/lib64/python3.6/site-packages/picard/script.py", line 447, in func_rsearch 
          match = re.search(pattern, text) 
        File "/usr/lib64/python3.6/re.py", line 182, in search 
          return _compile(pattern, flags).search(string) 
        File "/usr/lib64/python3.6/re.py", line 301, in _compile 
          p = sre_compile.compile(pattern, flags) 
        File "/usr/lib64/python3.6/sre_compile.py", line 562, in compile 
          p = sre_parse.parse(p, flags) 
        File "/usr/lib64/python3.6/sre_parse.py", line 855, in parse 
          p = _parse_sub(source, pattern, flags & SRE_FLAG_VERBOSE, 0) 
        File "/usr/lib64/python3.6/sre_parse.py", line 416, in _parse_sub 
          not nested and not items)) 
        File "/usr/lib64/python3.6/sre_parse.py", line 523, in _parse 
          source.tell() - here) 
      sre_constants.error: unterminated character set at position 0 
      Aborted (core dumped)

      This can be reproduced every time with those steps (but it doesn't happen if the closing parenthesis is not there).




            • Assignee:
              antlarr Antonio Larrosa Jiménez
              antlarr Antonio Larrosa Jiménez
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