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      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 (at) 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 }
    169