NASHORN-444.js revision 6:5a1b0714df0e 
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
31var formatRegExp = /%[sdj%]/g;
32var 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
61var obj = function() {
62    return {
63        a: 1,
64        b: 2
65    };
66};
67
68var o = obj();
69print(format('obj %j', o));
70print(format('obj %j', o));
71
72