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-rw-r--r--Lib/os2emxpath.py158
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diff --git a/Lib/os2emxpath.py b/Lib/os2emxpath.py
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-# Module 'os2emxpath' -- common operations on OS/2 pathnames
-"""Common pathname manipulations, OS/2 EMX version.
-
-Instead of importing this module directly, import os and refer to this
-module as os.path.
-"""
-
-import os
-import stat
-from genericpath import *
-from ntpath import (expanduser, expandvars, isabs, islink, splitdrive,
- splitext, split)
-
-__all__ = ["normcase","isabs","join","splitdrive","split","splitext",
- "basename","dirname","commonprefix","getsize","getmtime",
- "getatime","getctime", "islink","exists","lexists","isdir","isfile",
- "ismount","expanduser","expandvars","normpath","abspath",
- "splitunc","curdir","pardir","sep","pathsep","defpath","altsep",
- "extsep","devnull","realpath","supports_unicode_filenames"]
-
-# strings representing various path-related bits and pieces
-curdir = '.'
-pardir = '..'
-extsep = '.'
-sep = '/'
-altsep = '\\'
-pathsep = ';'
-defpath = '.;C:\\bin'
-devnull = 'nul'
-
-# Normalize the case of a pathname and map slashes to backslashes.
-# Other normalizations (such as optimizing '../' away) are not done
-# (this is done by normpath).
-
-def normcase(s):
- """Normalize case of pathname.
-
- Makes all characters lowercase and all altseps into seps."""
- if not isinstance(s, (bytes, str)):
- raise TypeError("normcase() argument must be str or bytes, "
- "not '{}'".format(s.__class__.__name__))
- return s.replace('\\', '/').lower()
-
-
-# Join two (or more) paths.
-
-def join(a, *p):
- """Join two or more pathname components, inserting sep as needed"""
- path = a
- for b in p:
- if isabs(b):
- path = b
- elif path == '' or path[-1:] in '/\\:':
- path = path + b
- else:
- path = path + '/' + b
- return path
-
-
-# Parse UNC paths
-def splitunc(p):
- """Split a pathname into UNC mount point and relative path specifiers.
-
- Return a 2-tuple (unc, rest); either part may be empty.
- If unc is not empty, it has the form '//host/mount' (or similar
- using backslashes). unc+rest is always the input path.
- Paths containing drive letters never have an UNC part.
- """
- if p[1:2] == ':':
- return '', p # Drive letter present
- firstTwo = p[0:2]
- if firstTwo == '/' * 2 or firstTwo == '\\' * 2:
- # is a UNC path:
- # vvvvvvvvvvvvvvvvvvvv equivalent to drive letter
- # \\machine\mountpoint\directories...
- # directory ^^^^^^^^^^^^^^^
- normp = normcase(p)
- index = normp.find('/', 2)
- if index == -1:
- ##raise RuntimeError, 'illegal UNC path: "' + p + '"'
- return ("", p)
- index = normp.find('/', index + 1)
- if index == -1:
- index = len(p)
- return p[:index], p[index:]
- return '', p
-
-
-# Return the tail (basename) part of a path.
-
-def basename(p):
- """Returns the final component of a pathname"""
- return split(p)[1]
-
-
-# Return the head (dirname) part of a path.
-
-def dirname(p):
- """Returns the directory component of a pathname"""
- return split(p)[0]
-
-
-# alias exists to lexists
-lexists = exists
-
-
-# Is a path a directory?
-
-# Is a path a mount point? Either a root (with or without drive letter)
-# or an UNC path with at most a / or \ after the mount point.
-
-def ismount(path):
- """Test whether a path is a mount point (defined as root of drive)"""
- unc, rest = splitunc(path)
- if unc:
- return rest in ("", "/", "\\")
- p = splitdrive(path)[1]
- return len(p) == 1 and p[0] in '/\\'
-
-
-# Normalize a path, e.g. A//B, A/./B and A/foo/../B all become A/B.
-
-def normpath(path):
- """Normalize path, eliminating double slashes, etc."""
- path = path.replace('\\', '/')
- prefix, path = splitdrive(path)
- while path[:1] == '/':
- prefix = prefix + '/'
- path = path[1:]
- comps = path.split('/')
- i = 0
- while i < len(comps):
- if comps[i] == '.':
- del comps[i]
- elif comps[i] == '..' and i > 0 and comps[i-1] not in ('', '..'):
- del comps[i-1:i+1]
- i = i - 1
- elif comps[i] == '' and i > 0 and comps[i-1] != '':
- del comps[i]
- else:
- i = i + 1
- # If the path is now empty, substitute '.'
- if not prefix and not comps:
- comps.append('.')
- return prefix + '/'.join(comps)
-
-
-# Return an absolute path.
-def abspath(path):
- """Return the absolute version of a path"""
- if not isabs(path):
- path = join(os.getcwd(), path)
- return normpath(path)
-
-# realpath is a no-op on systems without islink support
-realpath = abspath
-
-supports_unicode_filenames = False