Add missing case for backspace control character in JSON.parse()

JerryScript-DCO-1.0-Signed-off-by: Roland Takacs rtakacs.u-szeged@partner.samsung.com

jerry-core/ecma/builtin-objects/ecma-builtin-json.cpp

@@ -163,6 +163,11 @@ ecma_builtin_json_parse_string (ecma_json_token_t *token_p) /**< token argument
           *current_p = '\t';
           break;
         }
+        case 'b':
+        {
+          *current_p = '\b';
+          break;
+        }
         default:
         {
           return;

tests/jerry/json-parse.js

@@ -38,6 +38,8 @@ str = '-32.5e002';
 assert (JSON.parse (str) == -3250);
 str = '"str"';
 assert (JSON.parse (str) == "str");
+str = '"\\b\\f\\n\\t\\r"'
+assert (JSON.parse (str) === "\b\f\n\t\r");
 
 check_parse_error ('undefined');
 check_parse_error ('falses');