tests/mozilla/ecma_2/String/match-002.js

   1 /**
   2  *  File Name:          String/match-002.js
   3  *  ECMA Section:       15.6.4.9
   4  *  Description:        Based on ECMA 2 Draft 7 February 1999
   5  *
   6  *  Author:             christine@netscape.com
   7  *  Date:               19 February 1999
   8  */
   9
  10 /*
  11  *  String.match( regexp )
  12  *
  13  *  If regexp is not an object of type RegExp, it is replaced with result
  14  *  of the expression new RegExp(regexp). Let string denote the result of
  15  *  converting the this value to a string.  If regexp.global is false,
  16  *  return the result obtained by invoking RegExp.prototype.exec (see
  17  *  section 15.7.5.3) on regexp with string as parameter.
  18  *
  19  *  Otherwise, set the regexp.lastIndex property to 0 and invoke
  20  *  RegExp.prototype.exec repeatedly until there is no match. If there is a
  21  *  match with an empty string (in other words, if the value of
  22  *  regexp.lastIndex is left unchanged) increment regexp.lastIndex by 1.
  23  *  The value returned is an array with the properties 0 through n-1
  24  *  corresponding to the first element of the result of each matching
  25  *  invocation of RegExp.prototype.exec.
  26  *
  27  *  Note that the match function is intentionally generic; it does not
  28  *  require that its this value be a string object.  Therefore, it can be
  29  *  transferred to other kinds of objects for use as a method.
  30  *
  31  *  This file tests cases in which regexp.global is false.  Therefore,
  32  *  results should behave as regexp.exec with string passed as a parameter.
  33  *
  34  */
  35
  36     var SECTION = "String/match-002.js";
  37     var VERSION = "ECMA_2";
  38     var TITLE   = "String.prototype.match( regexp )";
  39
  40     startTest();
  41
  42     // the regexp argument is not a RegExp object
  43     // this is not a string object
  44
  45     AddRegExpCases( /([\d]{5})([-\ ]?[\d]{4})?$/,
  46                           "/([\d]{5})([-\ ]?[\d]{4})?$/",
  47                           "Boston, Mass. 02134",
  48                           14,
  49                           ["02134", "02134", undefined]);
  50
  51     AddGlobalRegExpCases( /([\d]{5})([-\ ]?[\d]{4})?$/g,
  52                           "/([\d]{5})([-\ ]?[\d]{4})?$/g",
  53                           "Boston, Mass. 02134",
  54                           ["02134"]);
  55
  56     // set the value of lastIndex
  57     re = /([\d]{5})([-\ ]?[\d]{4})?$/;
  58     re.lastIndex = 0;
  59
  60     s = "Boston, MA 02134";
  61
  62     AddRegExpCases( re,
  63                      "re = /([\d]{5})([-\ ]?[\d]{4})?$/; re.lastIndex =0",
  64                      s,
  65                      s.lastIndexOf("0"),
  66                      ["02134", "02134", undefined]);
  67
  68
  69     re.lastIndex = s.length;
  70
  71     AddRegExpCases( re,
  72                     "re = /([\d]{5})([-\ ]?[\d]{4})?$/; re.lastIndex = " +
  73                     s.length,
  74                     s,
  75                     s.lastIndexOf("0"),
  76                     ["02134", "02134", undefined] );
  77
  78     re.lastIndex = s.lastIndexOf("0");
  79
  80     AddRegExpCases( re,
  81                     "re = /([\d]{5})([-\ ]?[\d]{4})?$/; re.lastIndex = " +
  82                     s.lastIndexOf("0"),
  83                     s,
  84                     s.lastIndexOf("0"),
  85                     ["02134", "02134", undefined]);
  86
  87     re.lastIndex = s.lastIndexOf("0") + 1;
  88
  89     AddRegExpCases( re,
  90                     "re = /([\d]{5})([-\ ]?[\d]{4})?$/; re.lastIndex = " +
  91                     s.lastIndexOf("0") +1,
  92                     s,
  93                     s.lastIndexOf("0"),
  94                     ["02134", "02134", undefined]);
  95
  96     test();
  97
  98 function AddRegExpCases(
  99     regexp, str_regexp, string, index, matches_array ) {
 100
 101   // prevent a runtime error
 102
 103     if ( regexp.exec(string) == null || matches_array == null ) {
 104         AddTestCase(
 105           string + ".match(" + regexp +")",
 106           matches_array,
 107           string.match(regexp) );
 108
 109         return;
 110     }
 111
 112     AddTestCase(
 113         "( " + string  + " ).match(" + str_regexp +").length",
 114         matches_array.length,
 115         string.match(regexp).length );
 116
 117     AddTestCase(
 118         "( " + string + " ).match(" + str_regexp +").index",
 119         index,
 120         string.match(regexp).index );
 121
 122     AddTestCase(
 123         "( " + string + " ).match(" + str_regexp +").input",
 124         string,
 125         string.match(regexp).input );
 126
 127     var limit = matches_array.length > string.match(regexp).length ?
 128                 matches_array.length :
 129                 string.match(regexp).length;
 130
 131     for ( var matches = 0; matches < limit; matches++ ) {
 132         AddTestCase(
 133             "( " + string + " ).match(" + str_regexp +")[" + matches +"]",
 134             matches_array[matches],
 135             string.match(regexp)[matches] );
 136     }
 137 }
 138
 139 function AddGlobalRegExpCases(
 140     regexp, str_regexp, string, matches_array ) {
 141
 142   // prevent a runtime error
 143
 144     if ( regexp.exec(string) == null || matches_array == null ) {
 145         AddTestCase(
 146           regexp + ".exec(" + string +")",
 147           matches_array,
 148           regexp.exec(string) );
 149
 150         return;
 151     }
 152
 153     AddTestCase(
 154         "( " + string  + " ).match(" + str_regexp +").length",
 155         matches_array.length,
 156         string.match(regexp).length );
 157
 158     var limit = matches_array.length > string.match(regexp).length ?
 159                 matches_array.length :
 160                 string.match(regexp).length;
 161
 162     for ( var matches = 0; matches < limit; matches++ ) {
 163         AddTestCase(
 164             "( " + string + " ).match(" + str_regexp +")[" + matches +"]",
 165             matches_array[matches],
 166             string.match(regexp)[matches] );
 167     }
 168 }