tests/mozilla/ecma_2/String/match-004.js

   1 /**
   2  *  File Name:          String/match-004.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  *
  32  *  The match function should be intentionally generic, and not require
  33  *  this to be a string.
  34  *
  35  */
  36
  37     var SECTION = "String/match-004.js";
  38     var VERSION = "ECMA_2";
  39     var TITLE   = "String.prototype.match( regexp )";
  40
  41     var BUGNUMBER="http://scopus/bugsplat/show_bug.cgi?id=345818";
  42
  43     startTest();
  44
  45     // set the value of lastIndex
  46     re = /0./;
  47     s = 10203040506070809000;
  48
  49     Number.prototype.match = String.prototype.match;
  50
  51     AddRegExpCases(  re,
  52                      "re = " + re ,
  53                      s,
  54                      String(s),
  55                      1,
  56                      ["02"]);
  57
  58
  59     re.lastIndex = 0;
  60     AddRegExpCases(  re,
  61                      "re = " + re +" [lastIndex is " + re.lastIndex+"]",
  62                      s,
  63                      String(s),
  64                      1,
  65                      ["02"]);
  66 /*
  67
  68     re.lastIndex = s.length;
  69
  70     AddRegExpCases( re,
  71                     "re = /([\d]{5})([-\ ]?[\d]{4})?$/; re.lastIndex = " +
  72                     s.length,
  73                     s,
  74                     s.lastIndexOf("0"),
  75                     null );
  76
  77     re.lastIndex = s.lastIndexOf("0");
  78
  79     AddRegExpCases( re,
  80                     "re = /([\d]{5})([-\ ]?[\d]{4})?$/; re.lastIndex = " +
  81                     s.lastIndexOf("0"),
  82                     s,
  83                     s.lastIndexOf("0"),
  84                     ["02134"]);
  85
  86     re.lastIndex = s.lastIndexOf("0") + 1;
  87
  88     AddRegExpCases( re,
  89                     "re = /([\d]{5})([-\ ]?[\d]{4})?$/; re.lastIndex = " +
  90                     s.lastIndexOf("0") +1,
  91                     s,
  92                     0,
  93                     null);
  94 */
  95     test();
  96
  97 function AddRegExpCases(
  98     regexp, str_regexp, string, str_string, index, matches_array ) {
  99
 100   // prevent a runtime error
 101
 102     if ( regexp.exec(string) == null || matches_array == null ) {
 103         AddTestCase(
 104           string + ".match(" + regexp +")",
 105           matches_array,
 106           string.match(regexp) );
 107
 108         return;
 109     }
 110
 111     AddTestCase(
 112         "( " + string  + " ).match(" + str_regexp +").length",
 113         matches_array.length,
 114         string.match(regexp).length );
 115
 116     AddTestCase(
 117         "( " + string + " ).match(" + str_regexp +").index",
 118         index,
 119         string.match(regexp).index );
 120
 121         AddTestCase(
 122         "( " + string + " ).match(" + str_regexp +").input",
 123         str_string,
 124         string.match(regexp).input );
 125
 126     var limit = matches_array.length > string.match(regexp).length ?
 127                 matches_array.length :
 128                 string.match(regexp).length;
 129
 130     for ( var matches = 0; matches < limit; matches++ ) {
 131         AddTestCase(
 132             "( " + string + " ).match(" + str_regexp +")[" + matches +"]",
 133             matches_array[matches],
 134             string.match(regexp)[matches] );
 135     }
 136 }
 137
 138 function AddGlobalRegExpCases(
 139     regexp, str_regexp, string, matches_array ) {
 140
 141   // prevent a runtime error
 142
 143     if ( regexp.exec(string) == null || matches_array == null ) {
 144         AddTestCase(
 145           regexp + ".exec(" + string +")",
 146           matches_array,
 147           regexp.exec(string) );
 148
 149         return;
 150     }
 151
 152     AddTestCase(
 153         "( " + string  + " ).match(" + str_regexp +").length",
 154         matches_array.length,
 155         string.match(regexp).length );
 156
 157     var limit = matches_array.length > string.match(regexp).length ?
 158                 matches_array.length :
 159                 string.match(regexp).length;
 160
 161     for ( var matches = 0; matches < limit; matches++ ) {
 162         AddTestCase(
 163             "( " + string + " ).match(" + str_regexp +")[" + matches +"]",
 164             matches_array[matches],
 165             string.match(regexp)[matches] );
 166     }
 167 }