зеркало из https://github.com/mozilla/pjs.git
246 строки
9.9 KiB
JavaScript
246 строки
9.9 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla Communicator client code, released
|
|
* March 31, 1998.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/**
|
|
File Name: 15.5.4.8-2.js
|
|
ECMA Section: 15.5.4.8 String.prototype.split( separator )
|
|
Description:
|
|
|
|
Returns an Array object into which substrings of the result of converting
|
|
this object to a string have been stored. The substrings are determined by
|
|
searching from left to right for occurrences of the given separator; these
|
|
occurrences are not part of any substring in the returned array, but serve
|
|
to divide up this string value. The separator may be a string of any length.
|
|
|
|
As a special case, if the separator is the empty string, the string is split
|
|
up into individual characters; the length of the result array equals the
|
|
length of the string, and each substring contains one character.
|
|
|
|
If the separator is not supplied, then the result array contains just one
|
|
string, which is the string.
|
|
|
|
When the split method is called with one argument separator, the following steps are taken:
|
|
|
|
1. Call ToString, giving it the this value as its argument.
|
|
2. Create a new Array object of length 0 and call it A.
|
|
3. If separator is not supplied, call the [[Put]] method of A with 0 and
|
|
Result(1) as arguments, and then return A.
|
|
4. Call ToString(separator).
|
|
5. Compute the number of characters in Result(1).
|
|
6. Compute the number of characters in the string that is Result(4).
|
|
7. Let p be 0.
|
|
8. If Result(6) is zero (the separator string is empty), go to step 17.
|
|
9. Compute the smallest possible integer k not smaller than p such that
|
|
k+Result(6) is not greater than Result(5), and for all nonnegative
|
|
integers j less than Result(6), the character at position k+j of
|
|
Result(1) is the same as the character at position j of Result(2);
|
|
but if there is no such integer k, then go to step 14.
|
|
10. Compute a string value equal to the substring of Result(1), consisting
|
|
of the characters at positions p through k1, inclusive.
|
|
11. Call the [[Put]] method of A with A.length and Result(10) as arguments.
|
|
12. Let p be k+Result(6).
|
|
13. Go to step 9.
|
|
14. Compute a string value equal to the substring of Result(1), consisting
|
|
of the characters from position p to the end of Result(1).
|
|
15. Call the [[Put]] method of A with A.length and Result(14) as arguments.
|
|
16. Return A.
|
|
17. If p equals Result(5), return A.
|
|
18. Compute a string value equal to the substring of Result(1), consisting of
|
|
the single character at position p.
|
|
19. Call the [[Put]] method of A with A.length and Result(18) as arguments.
|
|
20. Increase p by 1.
|
|
21. Go to step 17.
|
|
|
|
Note that the split function is intentionally generic; it does not require that its this value be a String
|
|
object. Therefore it can be transferred to other kinds of objects for use as a method.
|
|
|
|
Author: christine@netscape.com
|
|
Date: 12 november 1997
|
|
*/
|
|
|
|
var SECTION = "15.5.4.8-2";
|
|
var VERSION = "ECMA_1";
|
|
startTest();
|
|
var TITLE = "String.prototype.split";
|
|
|
|
writeHeaderToLog( SECTION + " "+ TITLE);
|
|
|
|
// case where separator is the empty string.
|
|
|
|
var TEST_STRING = "this is a string object";
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+ TEST_STRING +" ); s.split('').length",
|
|
TEST_STRING.length,
|
|
eval("var s = new String( TEST_STRING ); s.split('').length") );
|
|
|
|
for ( var i = 0; i < TEST_STRING.length; i++ ) {
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+TEST_STRING+" ); s.split('')["+i+"]",
|
|
TEST_STRING.charAt(i),
|
|
eval("var s = new String( TEST_STRING ); s.split('')["+i+"]") );
|
|
}
|
|
|
|
// case where the value of the separator is undefined. in this case. the value of the separator
|
|
// should be ToString( separator ), or "undefined".
|
|
|
|
var TEST_STRING = "thisundefinedisundefinedaundefinedstringundefinedobject";
|
|
var EXPECT_STRING = new Array( "this", "is", "a", "string", "object" );
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+ TEST_STRING +" ); s.split(void 0).length",
|
|
EXPECT_STRING.length,
|
|
eval("var s = new String( TEST_STRING ); s.split(void 0).length") );
|
|
|
|
for ( var i = 0; i < EXPECT_STRING.length; i++ ) {
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+TEST_STRING+" ); s.split(void 0)["+i+"]",
|
|
EXPECT_STRING[i],
|
|
eval("var s = new String( TEST_STRING ); s.split(void 0)["+i+"]") );
|
|
}
|
|
|
|
// case where the value of the separator is null. in this case the value of the separator is "null".
|
|
TEST_STRING = "thisnullisnullanullstringnullobject";
|
|
var EXPECT_STRING = new Array( "this", "is", "a", "string", "object" );
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+ TEST_STRING +" ); s.split(null).length",
|
|
EXPECT_STRING.length,
|
|
eval("var s = new String( TEST_STRING ); s.split(null).length") );
|
|
|
|
for ( var i = 0; i < EXPECT_STRING.length; i++ ) {
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+TEST_STRING+" ); s.split(null)["+i+"]",
|
|
EXPECT_STRING[i],
|
|
eval("var s = new String( TEST_STRING ); s.split(null)["+i+"]") );
|
|
}
|
|
|
|
// case where the value of the separator is a boolean.
|
|
TEST_STRING = "thistrueistrueatruestringtrueobject";
|
|
var EXPECT_STRING = new Array( "this", "is", "a", "string", "object" );
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+ TEST_STRING +" ); s.split(true).length",
|
|
EXPECT_STRING.length,
|
|
eval("var s = new String( TEST_STRING ); s.split(true).length") );
|
|
|
|
for ( var i = 0; i < EXPECT_STRING.length; i++ ) {
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+TEST_STRING+" ); s.split(true)["+i+"]",
|
|
EXPECT_STRING[i],
|
|
eval("var s = new String( TEST_STRING ); s.split(true)["+i+"]") );
|
|
}
|
|
|
|
// case where the value of the separator is a number
|
|
TEST_STRING = "this123is123a123string123object";
|
|
var EXPECT_STRING = new Array( "this", "is", "a", "string", "object" );
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+ TEST_STRING +" ); s.split(123).length",
|
|
EXPECT_STRING.length,
|
|
eval("var s = new String( TEST_STRING ); s.split(123).length") );
|
|
|
|
for ( var i = 0; i < EXPECT_STRING.length; i++ ) {
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+TEST_STRING+" ); s.split(123)["+i+"]",
|
|
EXPECT_STRING[i],
|
|
eval("var s = new String( TEST_STRING ); s.split(123)["+i+"]") );
|
|
}
|
|
|
|
|
|
// case where the value of the separator is a number
|
|
TEST_STRING = "this123is123a123string123object";
|
|
var EXPECT_STRING = new Array( "this", "is", "a", "string", "object" );
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+ TEST_STRING +" ); s.split(123).length",
|
|
EXPECT_STRING.length,
|
|
eval("var s = new String( TEST_STRING ); s.split(123).length") );
|
|
|
|
for ( var i = 0; i < EXPECT_STRING.length; i++ ) {
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+TEST_STRING+" ); s.split(123)["+i+"]",
|
|
EXPECT_STRING[i],
|
|
eval("var s = new String( TEST_STRING ); s.split(123)["+i+"]") );
|
|
}
|
|
|
|
// case where the separator is not in the string
|
|
TEST_STRING = "this is a string";
|
|
EXPECT_STRING = new Array( "this is a string" );
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( " + TEST_STRING + " ); s.split(':').length",
|
|
1,
|
|
eval("var s = new String( TEST_STRING ); s.split(':').length") );
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( " + TEST_STRING + " ); s.split(':')[0]",
|
|
TEST_STRING,
|
|
eval("var s = new String( TEST_STRING ); s.split(':')[0]") );
|
|
|
|
// case where part but not all of separator is in the string.
|
|
TEST_STRING = "this is a string";
|
|
EXPECT_STRING = new Array( "this is a string" );
|
|
new TestCase( SECTION,
|
|
"var s = new String( " + TEST_STRING + " ); s.split('strings').length",
|
|
1,
|
|
eval("var s = new String( TEST_STRING ); s.split('strings').length") );
|
|
|
|
new TestCase( SECTION,
|
|
"var s = new String( " + TEST_STRING + " ); s.split('strings')[0]",
|
|
TEST_STRING,
|
|
eval("var s = new String( TEST_STRING ); s.split('strings')[0]") );
|
|
|
|
// case where the separator is at the end of the string
|
|
TEST_STRING = "this is a string";
|
|
EXPECT_STRING = new Array( "this is a " );
|
|
new TestCase( SECTION,
|
|
"var s = new String( " + TEST_STRING + " ); s.split('string').length",
|
|
2,
|
|
eval("var s = new String( TEST_STRING ); s.split('string').length") );
|
|
|
|
for ( var i = 0; i < EXPECT_STRING.length; i++ ) {
|
|
new TestCase( SECTION,
|
|
"var s = new String( "+TEST_STRING+" ); s.split('string')["+i+"]",
|
|
EXPECT_STRING[i],
|
|
eval("var s = new String( TEST_STRING ); s.split('string')["+i+"]") );
|
|
}
|
|
|
|
test();
|