From b8e3673d0fc0f83fb6095e720411d0b0ed79b9ce Mon Sep 17 00:00:00 2001
From: Max Bruckner <max@maxbruckner.de>
Date: Sun, 30 Apr 2017 12:54:00 +0200
Subject: [PATCH] refactor cJSONUtils_PointerEncodedstrlen

---
 cJSON_Utils.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/cJSON_Utils.c b/cJSON_Utils.c
index d07179f..0fd18ab 100644
--- a/cJSON_Utils.c
+++ b/cJSON_Utils.c
@@ -107,18 +107,20 @@ static int cJSONUtils_Pstrcasecmp(const unsigned char *name, const unsigned char
     return 0;
 }
 
-static size_t cJSONUtils_PointerEncodedstrlen(const unsigned char *s)
+/* calculate the length of a string if encoded as JSON pointer with ~0 and ~1 escape sequences */
+static size_t cJSONUtils_PointerEncodedstrlen(const unsigned char *string)
 {
-    size_t l = 0;
-    for (; *s; (void)s++, l++)
+    size_t length;
+    for (length = 0; *string != '\0'; (void)string++, length++)
     {
-        if ((*s == '~') || (*s == '/'))
+        /* character needs to be escaped? */
+        if ((*string == '~') || (*string == '/'))
         {
-            l++;
+            length++;
         }
     }
 
-    return l;
+    return length;
 }
 
 static void cJSONUtils_PointerEncodedstrcpy(unsigned char *d, const unsigned char *s)