1/*
2* The contents of this file are subject to the Netscape Public
3* License Version 1.1 (the "License"); you may not use this file
4* except in compliance with the License. You may obtain a copy of
5* the License at http://www.mozilla.org/NPL/
6*
7* Software distributed under the License is distributed on an "AS
8* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
9* implied. See the License for the specific language governing
10* rights and limitations under the License.
11*
12* The Original Code is mozilla.org code.
13*
14* The Initial Developer of the Original Code is Netscape
15* Communications Corporation.  Portions created by Netscape are
16* Copyright (C) 1998 Netscape Communications Corporation. All
17* Rights Reserved.
18*
19* Contributor(s): pschwartau@netscape.com
20* Date: 26 November 2000
21*
22*
23*SUMMARY: Passing a RegExp object to a RegExp() constructor.
24*This test arose from Bugzilla bug 61266. The ECMA3 section is:
25*
26*  15.10.4.1 new RegExp(pattern, flags)
27*
28*  If pattern is an object R whose [[Class]] property is "RegExp" and
29*  flags is undefined, then let P be the pattern used to construct R
30*  and let F be the flags used to construct R. If pattern is an object R
31*  whose [[Class]] property is "RegExp" and flags is not undefined,
32*  then throw a TypeError exception. Otherwise, let P be the empty string
33*  if pattern is undefined and ToString(pattern) otherwise, and let F be
34*  the empty string if flags is undefined and ToString(flags) otherwise.
35*
36*
37*The current test will check the first scenario outlined above:
38*
39*   "pattern" is itself a RegExp object R
40*   "flags"  is undefined
41*
42* We check that a new RegExp object obj2 defined from these parameters
43* is morally the same as the original RegExp object obj1. Of course, they
44* can't be equal as objects - so we check their enumerable properties...
45*
46* In this test, the initial RegExp obj1 will include a flag. The flags
47* parameter for obj2  will be undefined in the sense of not being provided.
48*/
49//-------------------------------------------------------------------------------------------------
50var bug = '61266';
51var summary = 'Passing a RegExp object to a RegExp() constructor';
52var statprefix = 'Applying RegExp() twice to pattern ';
53var statmiddle = ' and flag ';
54var statsuffix =  '; testing property ';
55var singlequote = "'";
56var i = -1; var j = -1; var s = '';
57var obj1 = {}; var obj2 = {};
58var status = ''; var actual = ''; var expect = ''; var msg = '';
59var patterns = new Array();
60var flags = new Array();
61
62
63// various regular expressions to try -
64patterns[0] = '';
65patterns[1] = 'abc';
66patterns[2] = '(.*)(3-1)\s\w';
67patterns[3] = '(.*)(...)\\s\\w';
68patterns[4] = '[^A-Za-z0-9_]';
69patterns[5] = '[^\f\n\r\t\v](123.5)([4 - 8]$)';
70
71// various flags to try -
72flags[0] = 'i';
73flags[1] = 'g';
74flags[2] = 'm';
75flags[3] = undefined;
76
77
78
79//-------------------------------------------------------------------------------------------------
80test();
81//-------------------------------------------------------------------------------------------------
82
83
84function test()
85{
86  enterFunc ('test');
87  printBugNumber (bug);
88  printStatus (summary);
89
90  for (i in patterns)
91  {
92    s = patterns[i];
93
94    for (j in flags)
95    {
96      f = flags[j];
97      status = getStatus(s, f);
98      obj1 = new RegExp(s, f);
99      obj2 = new RegExp(obj1);
100
101      for (prop in obj2)
102      {
103        msg  = status +  quote(prop);
104        actual = obj2[prop];
105        expect = obj1[prop];
106        reportCompare (expect, actual, msg);
107      }
108    }
109  }
110
111  exitFunc ('test');
112}
113
114
115function getStatus(regexp, flag)
116{
117  return (statprefix  +  quote(regexp) +  statmiddle  +  flag  +  statsuffix);
118}
119
120
121function quote(text)
122{
123  return (singlequote  +  text  + singlequote);
124}