add simple string formating

build/js/ox.js

@@ -1174,6 +1174,16 @@ Encoding functions
 Format functions
 ================================================================================
 */
+Ox.format = function (s, args) {
+    /* Python(ish) string formatting:
+     * >>> format('{0}', ['zzz'])
+     * "zzz"
+     * >>> format('{x}', {x: 1})
+     * "1"
+     */
+    var re = /\{([^}]+)\}/g;
+    return s.replace(re, function(_, match){ return args[match]; });
+}
 
 Ox.formatDate = function() {
     /*
@@ -1890,4 +1900,4 @@ Ox.isUndefined = function(val) {
     true
     */
     return typeof val == "undefined";
-};
+};