From 581cf406a6d9f23f93fb34a90f1608c4df898ea4 Mon Sep 17 00:00:00 2001
From: Al <albarrentine@gmail.com>
Date: Wed, 24 Jun 2015 13:39:09 -0500
Subject: [PATCH] [utf8] Adding length argument to string_script function

---
 src/unicode_scripts.c | 10 ++++++----
 src/unicode_scripts.h |  2 +-
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/unicode_scripts.c b/src/unicode_scripts.c
index d7709b3f..0858b101 100644
--- a/src/unicode_scripts.c
+++ b/src/unicode_scripts.c
@@ -11,16 +11,17 @@ inline script_languages_t get_script_languages(script_t script) {
     return script_languages[script];
 }
 
-script_t string_script(char *str, size_t *len) {
+script_t string_script(char *str, size_t len, size_t *script_len) {
     int32_t ch;
     script_t last_script = SCRIPT_UNKNOWN;
     script_t script = SCRIPT_UNKNOWN;
 
     uint8_t *ptr = (uint8_t *)str;
 
-    *len = 0;
+    *script_len = 0;
+    size_t idx = 0;
 
-    while (1) {
+    while (idx < len) {
         ssize_t char_len = utf8proc_iterate(ptr, -1, &ch);
 
         if (ch == 0) break;
@@ -36,7 +37,8 @@ script_t string_script(char *str, size_t *len) {
         }
 
         ptr += char_len;
-        *len += char_len;
+        idx += char_len;
+        *script_len += char_len;
 
         if (script != SCRIPT_UNKNOWN || script != SCRIPT_COMMON) {
             last_script = script;
diff --git a/src/unicode_scripts.h b/src/unicode_scripts.h
index 16ef2439..436047cf 100644
--- a/src/unicode_scripts.h
+++ b/src/unicode_scripts.h
@@ -18,6 +18,6 @@ typedef struct script_languages {
 script_t get_char_script(uint32_t ch);
 script_languages_t get_script_languages(script_t script);
 
-script_t string_script(char *str, size_t *len);
+script_t string_script(char *str, size_t len, size_t *script_len);
 
 #endif