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Commit Description:
merge with algo and add brython files that were missing
Commit Description:
merge with algo and add brython files that were missing
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lib/assets/Lib/glob.py
| 110 lines
| 3.5 KiB
| text/x-python
| PythonLexer
|
| r584 | """Filename globbing utility.""" | |||
| import os | ||||
| import re | ||||
| import fnmatch | ||||
| __all__ = ["glob", "iglob"] | ||||
| def glob(pathname): | ||||
| """Return a list of paths matching a pathname pattern. | ||||
| The pattern may contain simple shell-style wildcards a la | ||||
| fnmatch. However, unlike fnmatch, filenames starting with a | ||||
| dot are special cases that are not matched by '*' and '?' | ||||
| patterns. | ||||
| """ | ||||
| return list(iglob(pathname)) | ||||
| def iglob(pathname): | ||||
| """Return an iterator which yields the paths matching a pathname pattern. | ||||
| The pattern may contain simple shell-style wildcards a la | ||||
| fnmatch. However, unlike fnmatch, filenames starting with a | ||||
| dot are special cases that are not matched by '*' and '?' | ||||
| patterns. | ||||
| """ | ||||
| dirname, basename = os.path.split(pathname) | ||||
| if not has_magic(pathname): | ||||
| if basename: | ||||
| if os.path.lexists(pathname): | ||||
| yield pathname | ||||
| else: | ||||
| # Patterns ending with a slash should match only directories | ||||
| if os.path.isdir(dirname): | ||||
| yield pathname | ||||
| return | ||||
| if not dirname: | ||||
| yield from glob1(None, basename) | ||||
| return | ||||
| # `os.path.split()` returns the argument itself as a dirname if it is a | ||||
| # drive or UNC path. Prevent an infinite recursion if a drive or UNC path | ||||
| # contains magic characters (i.e. r'\\?\C:'). | ||||
| if dirname != pathname and has_magic(dirname): | ||||
| dirs = iglob(dirname) | ||||
| else: | ||||
| dirs = [dirname] | ||||
| if has_magic(basename): | ||||
| glob_in_dir = glob1 | ||||
| else: | ||||
| glob_in_dir = glob0 | ||||
| for dirname in dirs: | ||||
| for name in glob_in_dir(dirname, basename): | ||||
| yield os.path.join(dirname, name) | ||||
| # These 2 helper functions non-recursively glob inside a literal directory. | ||||
| # They return a list of basenames. `glob1` accepts a pattern while `glob0` | ||||
| # takes a literal basename (so it only has to check for its existence). | ||||
| def glob1(dirname, pattern): | ||||
| if not dirname: | ||||
| if isinstance(pattern, bytes): | ||||
| dirname = bytes(os.curdir, 'ASCII') | ||||
| else: | ||||
| dirname = os.curdir | ||||
| try: | ||||
| names = os.listdir(dirname) | ||||
| except OSError: | ||||
| return [] | ||||
| if not _ishidden(pattern): | ||||
| names = [x for x in names if not _ishidden(x)] | ||||
| return fnmatch.filter(names, pattern) | ||||
| def glob0(dirname, basename): | ||||
| if not basename: | ||||
| # `os.path.split()` returns an empty basename for paths ending with a | ||||
| # directory separator. 'q*x/' should match only directories. | ||||
| if os.path.isdir(dirname): | ||||
| return [basename] | ||||
| else: | ||||
| if os.path.lexists(os.path.join(dirname, basename)): | ||||
| return [basename] | ||||
| return [] | ||||
| magic_check = re.compile('([*?[])') | ||||
| magic_check_bytes = re.compile(b'([*?[])') | ||||
| def has_magic(s): | ||||
| if isinstance(s, bytes): | ||||
| match = magic_check_bytes.search(s) | ||||
| else: | ||||
| match = magic_check.search(s) | ||||
| return match is not None | ||||
| def _ishidden(path): | ||||
| return path[0] in ('.', b'.'[0]) | ||||
| def escape(pathname): | ||||
| """Escape all special characters. | ||||
| """ | ||||
| # Escaping is done by wrapping any of "*?[" between square brackets. | ||||
| # Metacharacters do not work in the drive part and shouldn't be escaped. | ||||
| drive, pathname = os.path.splitdrive(pathname) | ||||
| if isinstance(pathname, bytes): | ||||
| pathname = magic_check_bytes.sub(br'[\1]', pathname) | ||||
| else: | ||||
| pathname = magic_check.sub(r'[\1]', pathname) | ||||
| return drive + pathname | ||||