Regex for FORTRAN Throws an Error

[alicebibaud]

When running lizard over a fortran file, I'm getting this error:

File ".../.venv/lib/python3.12/site-packages/lizard.py", line 567, in analyze_source_code
    for _ in reader(tokens, reader):
  File ".../.venv/lib/python3.12/site-packages/lizard_languages/code_reader.py", line 161, in __call__
    for token in tokens:
  File ".../.venv/lib/python3.12/site-packages/lizard.py", line 533, in condition_counter
    for token in tokens:
  File ".../.venv/lib/python3.12/site-packages/lizard.py", line 525, in token_counter
    for token in tokens:
  File ".../.venv/lib/python3.12/site-packages/lizard.py", line 511, in line_counter
    for token in tokens:
  File ".../.venv/lib/python3.12/site-packages/lizard.py", line 494, in comment_counter
    for token in tokens:
  File ".../.venv/lib/python3.12/site-packages/lizard_languages/fortran.py", line 54, in preprocess
    for token in tokens:
  File ".../.venv/lib/python3.12/site-packages/lizard_languages/code_reader.py", line 123, in _generate_tokens
    token_pattern = re.compile(
                    ^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.12.3/Frameworks/Python.framework/Versions/3.12/lib/python3.12/re/__init__.py", line 228, in compile
    return _compile(pattern, flags)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.12.3/Frameworks/Python.framework/Versions/3.12/lib/python3.12/re/__init__.py", line 307, in _compile
    p = _compiler.compile(pattern, flags)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.12.3/Frameworks/Python.framework/Versions/3.12/lib/python3.12/re/_compiler.py", line 745, in compile
    p = _parser.parse(p, flags)
        ^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.12.3/Frameworks/Python.framework/Versions/3.12/lib/python3.12/re/_parser.py", line 979, in parse
    p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.12.3/Frameworks/Python.framework/Versions/3.12/lib/python3.12/re/_parser.py", line 460, in _parse_sub
    itemsappend(_parse(source, state, verbose, nested + 1,
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.12.3/Frameworks/Python.framework/Versions/3.12/lib/python3.12/re/_parser.py", line 862, in _parse
    p = _parse_sub(source, state, sub_verbose, nested + 1)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.12.3/Frameworks/Python.framework/Versions/3.12/lib/python3.12/re/_parser.py", line 460, in _parse_sub
    itemsappend(_parse(source, state, verbose, nested + 1,
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.12.3/Frameworks/Python.framework/Versions/3.12/lib/python3.12/re/_parser.py", line 840, in _parse
    raise source.error('global flags not at the start '
re.error: global flags not at the start of the expression at position 14

It looks like this is an issue with the regex that's attempting to pull methods or functions out of this file. I'm interested in taking a stab at fixing this, but I wanted to put this here for completeness.

[terryyin]

Thanks for the report. It's fixed with the commit ff1928b please try again. Also I created a new release on pypi.