Bugfix in parsing escaped characters (+ additional tests to prevent this bug in future).

Thanks to Joseph Werle for bringing attention to it.

parson.c

@@ -437,12 +437,14 @@ static const char * get_processed_string(const char **string) {
         if (*unprocessed_ptr == '\\') {
             unprocessed_ptr++;
             switch (*unprocessed_ptr) {
-                case '\"': case '\\': case '/': break;
-                case 'b': *processed_ptr = '\b'; break;
-                case 'f': *processed_ptr = '\f'; break;
-                case 'n': *processed_ptr = '\n'; break;
-                case 'r': *processed_ptr = '\r'; break;
-                case 't': *processed_ptr = '\t'; break;
+                case '\"': *processed_ptr = '\"'; break;
+                case '\\': *processed_ptr = '\\'; break;
+                case '/':  *processed_ptr = '/';  break;
+                case 'b':  *processed_ptr = '\b'; break;
+                case 'f':  *processed_ptr = '\f'; break;
+                case 'n':  *processed_ptr = '\n'; break;
+                case 'r':  *processed_ptr = '\r'; break;
+                case 't':  *processed_ptr = '\t'; break;
                 case 'u':
                     if (parse_utf_16(&processed_ptr, &unprocessed_ptr) == ERROR) {
                         parson_free(output);
@@ -460,7 +462,8 @@ static const char * get_processed_string(const char **string) {
         } else {
             *processed_ptr = *unprocessed_ptr;
         }
-        processed_ptr++, unprocessed_ptr++;
+        processed_ptr++;
+        unprocessed_ptr++;
     }
     *processed_ptr = '\0';
     if (try_realloc((void**)&output, strlen(output) + 1) == ERROR)

tests.c

@@ -135,6 +135,8 @@ void test_suite_2(JSON_Value *root_value) {
     
     TEST(STREQ(json_object_get_string(root_object, "/**/"), "comment"));
     TEST(STREQ(json_object_get_string(root_object, "//"), "comment"));
+    TEST(STREQ(json_object_get_string(root_object, "url"), "https://www.example.com/search?q=12345"));
+    TEST(STREQ(json_object_get_string(root_object, "escaped chars"), "\" \\ /"));
 }
 
 void test_suite_2_no_comments(void) {

tests/test_2.txt

@@ -23,5 +23,6 @@
 	"*/" : null,
 	"/**/" : "comment",
 	"//" : "comment",
-	"#" : "comment"
+	"url" : "https:\/\/www.example.com\/search?q=12345",
+	"escaped chars" : "\" \\ \/"
 }

tests/test_2_comments.txt

@@ -29,7 +29,9 @@
 				 "nested array" : ["lorem", "ipsum"] },
 	"*/" : null,
 	"/**/" : "comment",
-	"//" : "comment"
+	"//" : "comment",
+	"url" : "https:\/\/www.example.com\/search?q=12345",
+	"escaped chars" : "\" \\ \/"
 }
 /**/
 //