filelist.py 文件源码

def glob_to_re(pattern):
    """Translate a shell-like glob pattern to a regular expression.

    Return a string containing the regex.  Differs from
    'fnmatch.translate()' in that '*' does not match "special characters"
    (which are platform-specific).
    """
    pattern_re = fnmatch.translate(pattern)

    # '?' and '*' in the glob pattern become '.' and '.*' in the RE, which
    # IMHO is wrong -- '?' and '*' aren't supposed to match slash in Unix,
    # and by extension they shouldn't match such "special characters" under
    # any OS.  So change all non-escaped dots in the RE to match any
    # character except the special characters.
    # XXX currently the "special characters" are just slash -- i.e. this is
    # Unix-only.
    pattern_re = re.sub(r'((?<!\\)(\\\\)*)\.', r'\1[^/]', pattern_re)

    return pattern_re