grep: rewrite an if/else condition to avoid duplicate expression

diff --git a/compat/mingw.c b/compat/mingw.c
index 7115e4e09eba2d62486110c58e244067e5348c98..77a51d3f72ebf8a3fa53b72e93b26f4e60c710b8 100644 (file)
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1935,28 +1935,31 @@ pid_t waitpid(pid_t pid, int *status, int options)
        return -1;
 }
 
+int mingw_skip_dos_drive_prefix(char **path)
+{
+       int ret = has_dos_drive_prefix(*path);
+       *path += ret;
+       return ret;
+}
+
 int mingw_offset_1st_component(const char *path)
 {
-       int offset = 0;
-       if (has_dos_drive_prefix(path))
-               offset = 2;
+       char *pos = (char *)path;
 
        /* unc paths */
-       else if (is_dir_sep(path[0]) && is_dir_sep(path[1])) {
-
+       if (!skip_dos_drive_prefix(&pos) &&
+                       is_dir_sep(pos[0]) && is_dir_sep(pos[1])) {
                /* skip server name */
-               char *pos = strpbrk(path + 2, "\\/");
+               pos = strpbrk(pos + 2, "\\/");
                if (!pos)
                        return 0; /* Error: malformed unc path */
 
                do {
                        pos++;
                } while (*pos && !is_dir_sep(*pos));
-
-               offset = pos - path;
        }
 
-       return offset + is_dir_sep(path[offset]);
+       return pos + is_dir_sep(*pos) - path;
 }
 
 int xutftowcsn(wchar_t *wcs, const char *utfs, size_t wcslen, int utflen)