Renamed to posixpath; changed def'n of split().

This commit is contained in:
Guido van Rossum 1992-03-31 18:54:35 +00:00
parent 627efd94e9
commit 2684738d2f
1 changed files with 13 additions and 9 deletions

View File

@ -1,4 +1,4 @@
# Module 'path' -- common operations on POSIX pathnames
# Module 'posixpath' -- common operations on POSIX pathnames
import posix
import stat
@ -31,20 +31,24 @@ def join(a, b):
return a + '/' + b
# Split a path in head (empty or ending in '/') and tail (no '/').
# The tail will be empty if the path ends in '/'.
# It is always true that head + tail == p; also join(head, tail) == p.
# Note that because head ends in '/', if you want to find all components
# of a path by repeatedly getting the head, you will have to strip off
# the trailing '/' yourself (another function should be defined to
# split an entire path into components.)
# Split a path in head (everything up to the last '/') and tail (the
# rest). If the original path ends in '/' but is not the root, this
# '/' is stripped. After the trailing '/' is stripped, the invariant
# join(head, tail) == p holds.
# The resulting head won't end in '/' unless it is the root.
def split(p):
if p[-1:] == '/' and p <> '/'*len(p):
while p[-1] == '/':
p = p[:-1]
head, tail = '', ''
for c in p:
tail = tail + c
if c == '/':
head, tail = head + tail, ''
if head[-1:] == '/' and head <> '/'*len(head):
while head[-1] == '/':
head = head[:-1]
return head, tail
@ -119,7 +123,7 @@ def isdir(path):
return stat.S_ISDIR(st[stat.ST_MODE])
# Is a path a regulat file?
# Is a path a regular file?
# This follows symbolic links, so both islink() and isdir() can be true
# for the same path.