Changeset 2698 for trunk/src

Timestamp:

Sep 17, 2013, 12:47:27 AM (12 years ago)

Author:

bird

Message:

kmk: Extended the substr function to allow refering length from the end of the string by using negative numbers (just like the start offset).

File:

• trunk/src/kmk/function.c (modified) (1 diff)

trunk/src/kmk/function.c

@@ -2901 +2901 @@
       if (length == 0)
         length = str_len - start;
-      else if (length < 0 && start >= -length)
-        return o;
       else if (length < 0)
-        length = str_len - start + length;
+        {
+          if (str_len <= -length)
+            return o;
+          length += str_len;
+          if (length <= start)
+            return o;
+          length -= start;
+        }
       else if (start + length > str_len)
         length = str_len - start;