babel.format doesn't work on IE 6 and 7

[Jun Omae]

babel.format doesn't work on IE 6 and 7. And babel.format('%%%s', ...), repeated percent signs, also is wrong on all browsers.

Expression	IE 6 and 7	Others	Expected
babel.format('blah %s', 'arg1');	blah s	blah arg1	blah arg1
babel.format('blah %(first)s', {first: 'arg1'});	blah (first)s	blah arg1	blah arg1
babel.format('%%%(arg)s', {arg: 'blah'});	%%(arg)s	%%(arg)s	%blah

I will apply the following patch later.

babel.js

@@ -36 +36 @@
 var babel = new function() {
 
   var defaultPluralExpr = function(n) { return n == 1 ? 0 : 1; };
-  var formatRegex = /%?%(?:\(([^\)]+)\))?([disr])/g;
+  var formatRegex = /%(?:(?:\(([^\)]+)\))?([disr])|%)/g;
 
   /**
    * A translations object implementing the gettext interface
@@ -151 +151 @@
         arg[i - 1] = arguments[i];
     }
     return string.replace(formatRegex, function(all, name, type) {
-      if (all[0] == all[1]) return all.substring(1);
+      if (all == '%%') return '%';
       var value = arg[name || idx++];
       return (type == 'i' || type == 'd') ? +value : value;
     });

[Jun Omae]

Committed in [11047] and [11048].