[gnome-shell] st-theme: Optimize string_in_list

[Jasper St. Pierre <jstpierre src gnome org>]

commit 73b4a0ef5f4ca29c35c359e29dc0e198c7feb51e
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Nov 5 13:36:40 2012 -0500

    st-theme: Optimize string_in_list
    
    Rather than using a complicated set of function calls across
    library boundaries and our own scanning logic, use strtok(),
    which glibc already provides, and is probably much more optimized.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=687465

 src/st/st-theme.c |   26 +++++++++++++-------------
 1 files changed, 13 insertions(+), 13 deletions(-)
---
diff --git a/src/st/st-theme.c b/src/st/st-theme.c
index 77076c0..298cdc8 100644
--- a/src/st/st-theme.c
+++ b/src/st/st-theme.c
@@ -450,26 +450,26 @@ static gboolean
 string_in_list (GString    *stryng,
                 const char *list)
 {
-  const char *cur;
+  char *cur;
+  char *l = g_strdup (list);
+  char *temp;
+  gboolean found = FALSE;
 
-  for (cur = list; *cur;)
+  cur = strtok_r (l, " \t\f\r\n", &temp);
+  while (cur != NULL)
     {
-      while (*cur && cr_utils_is_white_space (*cur))
-        cur++;
-
-      if (strncmp (cur, stryng->str, stryng->len) == 0)
+      if (!strqcmp (cur, stryng->str, stryng->len))
         {
-          cur +=  stryng->len;
-          if ((!*cur) || cr_utils_is_white_space (*cur))
-            return TRUE;
+          found = TRUE;
+          goto out;
         }
 
-      /*  skip to next whitespace character  */
-      while (*cur && !cr_utils_is_white_space (*cur))
-        cur++;
+      cur = strtok_r (NULL, " \t\f\r\n", &temp);
     }
 
-  return FALSE;
+ out:
+  g_free (l);
+  return found;
 }
 
 static gboolean