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fix bug appending path to empty string on windows

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@35462 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 2012-08-27 10:26:31 +00:00
parent 543be7f837
commit 739c0c8ece
2 changed files with 63 additions and 51 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2012-08-27 Richard Frith-Macdonald <rfm@gnu.org>
* Source/NSSstring.m: ([-stringByAppendingPathComponent:]) fix for
append to an empty string with a windows path as an argument.
2012-08-26 Niels Grewe <niels.grewe@halbordnung.de>
* configure.ac: Check for sys/filio.h and whether we need to

109
Source/NSString.m
View file

@ -3846,33 +3846,7 @@ static NSFileManager *fm = nil;
unsigned root;
unichar buf[length+aLength+1];
/* If the 'component' has a leading path separator (or drive spec
* in windows) then we need to find its length so we can strip it.
*/
root = rootOf(aString, aLength);
if (root > 0)
{
unichar c = [aString characterAtIndex: 0];
if (c == '~')
{
root = 0;
}
else if (root > 1 && pathSepMember(c))
{
int i;
for (i = 1; i < root; i++)
{
c = [aString characterAtIndex: i];
if (!pathSepMember(c))
{
break;
}
}
root = i;
}
}
if (length == 0)
{
@ -3881,6 +3855,33 @@ static NSFileManager *fm = nil;
}
else
{
/* If the 'component' has a leading path separator (or drive spec
* in windows) then we need to find its length so we can strip it.
*/
if (root > 0)
{
unichar c = [aString characterAtIndex: 0];
if (c == '~')
{
root = 0;
}
else if (root > 1 && pathSepMember(c))
{
int i;
for (i = 1; i < root; i++)
{
c = [aString characterAtIndex: i];
if (!pathSepMember(c))
{
break;
}
}
root = i;
}
}
[self getCharacters: buf range: ((NSRange){0, length})];
/* We strip back trailing path separators, and replace them with
@ -3912,36 +3913,42 @@ static NSFileManager *fm = nil;
root = rootOf(self, originalLength);
}
// Trim trailing path separators
while (length > 1 && pathSepMember(buf[length-1]) == YES)
{
length--;
}
/* Trim multi separator sequences outside root (root may contain an
* initial // pair if it is a windows UNC path).
*/
if (length > 0)
{
/* Trim trailing path separators as long as they are not part of
* the root.
*/
aLength = length - 1;
while (aLength > root)
while (aLength > root && pathSepMember(buf[aLength]) == YES)
{
if (pathSepMember(buf[aLength]) == YES)
{
buf[aLength] = pathSepChar();
if (pathSepMember(buf[aLength-1]) == YES)
{
unsigned pos;
buf[aLength-1] = pathSepChar();
for (pos = aLength+1; pos < length; pos++)
{
buf[pos-1] = buf[pos];
}
length--;
}
}
aLength--;
length--;
}
/* Trim multi separator sequences outside root (root may contain an
* initial // pair if it is a windows UNC path).
*/
if (length > 0)
{
while (aLength > root)
{
if (pathSepMember(buf[aLength]) == YES)
{
buf[aLength] = pathSepChar();
if (pathSepMember(buf[aLength-1]) == YES)
{
unsigned pos;
buf[aLength-1] = pathSepChar();
for (pos = aLength+1; pos < length; pos++)
{
buf[pos-1] = buf[pos];
}
length--;
}
}
aLength--;
}
}
}
return [NSStringClass stringWithCharacters: buf length: length];