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compat/basename: make basename() conform to POSIX

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According to POSIX, basename("/path/") should return "path", not
"path/". Likewise, basename(NULL) and basename("abc") should both
return ".".

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This commit is contained in:
Johannes Schindelin
2016-01-06 15:54:36 +01:00
parent ffcd315739
commit 51c8f38fbc
1 changed files with 17 additions and 3 deletions
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20
compat/basename.c
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@@ -4,10 +4,24 @@
char *gitbasename (char *path)
{
const char *base;
skip_dos_drive_prefix(&path);
if (path)
skip_dos_drive_prefix(&path);
if (!path || !*path)
return ".";
for (base = path; *path; path++) {
if (is_dir_sep(*path))
base = path + 1;
if (!is_dir_sep(*path))
continue;
do {
path++;
} while (is_dir_sep(*path));
if (*path)
base = path;
else
while (--path != base && is_dir_sep(*path))
*path = '\0';
}
return (char *)base;
}