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Backed out changeset dafca4714298

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This commit is contained in:
Tim Golden 2012-11-06 15:33:30 +00:00
parent 8f323d9aca
commit 9b3fb0c6a0
4 changed files with 25 additions and 118 deletions
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65
Lib/glob.py
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@ -14,7 +14,6 @@ def glob(pathname):
"""
return list(iglob(pathname))
def iglob(pathname):
"""Return an iterator which yields the paths matching a pathname pattern.
@ -25,24 +24,21 @@ def iglob(pathname):
if os.path.lexists(pathname):
yield pathname
return
pathnames = expand_braces(pathname)
for pathname in pathnames:
dirname, basename = os.path.split(pathname)
if not dirname:
yield from glob1(None, basename)
return
if 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)
dirname, basename = os.path.split(pathname)
if not dirname:
yield from glob1(None, basename)
return
if 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`
@ -74,37 +70,12 @@ def glob0(dirname, basename):
return []
magic_check = re.compile('[*?[{]')
magic_check_bytes = re.compile(b'[*?[{]')
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
brace_matcher = re.compile(r'.*(\{.+?[^\\]\})')
def expand_braces(text):
"""Find the rightmost, innermost set of braces and, if it contains a
comma-separated list, expand its contents recursively (any of its items
may itself be a list enclosed in braces).
Return the full set of expanded strings.
"""
res = set()
match = brace_matcher.search(text)
if match is not None:
sub = match.group(1)
open_brace, close_brace = match.span(1)
if "," in sub:
for pat in sub.strip('{}').split(','):
res.update(expand_braces(text[:open_brace] + pat + text[close_brace:]))
else:
res.update(expand_braces(text[:open_brace] + sub.replace('}', '\\}') + text[close_brace:]))
else:
res.add(text.replace('\\}', '}'))
return res