1 /*
   2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * NASHORN-444 : regex returns different result on second invocation.
  26  *
  27  * @test
  28  * @run
  29  */
  30 
  31 var formatRegExp = /%[sdj%]/g;
  32 var format = function(f) {
  33   if (typeof f !== 'string') {
  34     var objects = [];
  35     for (var i = 0; i < arguments.length; i++) {
  36       objects.push(inspect(arguments[i]));
  37     }
  38     return objects.join(' ');
  39   }
  40 
  41   var i = 1;
  42   var args = arguments;
  43   var len = args.length;
  44   if (formatRegExp.lastIndex !== 0) throw "expected lastIndex === 0, actual: " + formatRegExp.lastIndex;
  45   var str = String(f).replace(formatRegExp, function(x) {
  46     if (x === '%%') return '%';
  47     if (i >= len) return x;
  48     switch (x) {
  49       case '%s': return String(args[i++]);
  50       case '%d': return Number(args[i++]);
  51       case '%j': return JSON.stringify(args[i++]);
  52       default:
  53         return x;
  54     }
  55   });
  56   print(i + ' '+len);
  57   if (formatRegExp.lastIndex !== 0) throw "expected lastIndex === 0, actual: " + formatRegExp.lastIndex;
  58   return str;
  59 };
  60 
  61 var obj = function() {
  62     return {
  63         a: 1,
  64         b: 2
  65     };
  66 };
  67 
  68 var o = obj();
  69 print(format('obj %j', o));
  70 print(format('obj %j', o));
  71