| """Filename globbing utility.""" |
| |
| import os |
| import fnmatch |
| import re |
| |
| __all__ = ["glob"] |
| |
| def glob(pathname): |
| """Return a list of paths matching a pathname pattern. |
| |
| The pattern may contain simple shell-style wildcards a la fnmatch. |
| |
| """ |
| if not has_magic(pathname): |
| if os.path.exists(pathname): |
| return [pathname] |
| else: |
| return [] |
| dirname, basename = os.path.split(pathname) |
| if has_magic(dirname): |
| list = glob(dirname) |
| else: |
| list = [dirname] |
| if not has_magic(basename): |
| result = [] |
| for dirname in list: |
| if basename or os.path.isdir(dirname): |
| name = os.path.join(dirname, basename) |
| if os.path.exists(name): |
| result.append(name) |
| else: |
| result = [] |
| for dirname in list: |
| sublist = glob1(dirname, basename) |
| for name in sublist: |
| result.append(os.path.join(dirname, name)) |
| return result |
| |
| def glob1(dirname, pattern): |
| if not dirname: dirname = os.curdir |
| try: |
| names = os.listdir(dirname) |
| except os.error: |
| return [] |
| result = [] |
| for name in names: |
| if name[0] != '.' or pattern[0] == '.': |
| if fnmatch.fnmatch(name, pattern): |
| result.append(name) |
| return result |
| |
| |
| magic_check = re.compile('[*?[]') |
| |
| def has_magic(s): |
| return magic_check.search(s) is not None |