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/* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
*/
/**
File Name: 15.1.2.4.js
ECMA Section: 15.1.2.4 Function properties of the global object
escape( string )
Description:
The escape function computes a new version of a string value in which
certain characters have been replaced by a hexadecimal escape sequence.
The result thus contains no special characters that might have special
meaning within a URL.
For characters whose Unicode encoding is 0xFF or less, a two-digit
escape sequence of the form %xx is used in accordance with RFC1738.
For characters whose Unicode encoding is greater than 0xFF, a four-
digit escape sequence of the form %uxxxx is used.
When the escape function is called with one argument string, the
following steps are taken:
1. Call ToString(string).
2. Compute the number of characters in Result(1).
3. Let R be the empty string.
4. Let k be 0.
5. If k equals Result(2), return R.
6. Get the character at position k within Result(1).
7. If Result(6) is one of the 69 nonblank ASCII characters
ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
0123456789 @*_+-./, go to step 14.
8. Compute the 16-bit unsigned integer that is the Unicode character
encoding of Result(6).
9. If Result(8), is less than 256, go to step 12.
10. Let S be a string containing six characters "%uwxyz" where wxyz are
four hexadecimal digits encoding the value of Result(8).
11. Go to step 15.
12. Let S be a string containing three characters "%xy" where xy are two
hexadecimal digits encoding the value of Result(8).
13. Go to step 15.
14. Let S be a string containing the single character Result(6).
15. Let R be a new string value computed by concatenating the previous value
of R and S.
16. Increase k by 1.
17. Go to step 5.
Author: christine@netscape.com
Date: 28 october 1997
*/
var SECTION = "15.1.2.4";
var VERSION = "ECMA_1";
startTest();
var TITLE = "escape(string)";
writeHeaderToLog( SECTION + " "+ TITLE);
var testcases = getTestCases();
test();
function getTestCases() {
var array = new Array();
var item = 0;
array[item++] = new TestCase( SECTION, "escape.length", 1, escape.length );
array[item++] = new TestCase( SECTION, "escape.length = null; escape.length", 1, eval("escape.length = null; escape.length") );
array[item++] = new TestCase( SECTION, "delete escape.length", false, delete escape.length );
array[item++] = new TestCase( SECTION, "delete escape.length; escape.length", 1, eval("delete escape.length; escape.length") );
array[item++] = new TestCase( SECTION, "var MYPROPS=''; for ( var p in escape ) { MYPROPS+= p}; MYPROPS", "", eval("var MYPROPS=''; for ( var p in escape ) { MYPROPS+= p}; MYPROPS") );
array[item++] = new TestCase( SECTION, "escape()", "undefined", escape() );
array[item++] = new TestCase( SECTION, "escape('')", "", escape('') );
array[item++] = new TestCase( SECTION, "escape( null )", "null", escape(null) );
array[item++] = new TestCase( SECTION, "escape( void 0 )", "undefined", escape(void 0) );
array[item++] = new TestCase( SECTION, "escape( true )", "true", escape( true ) );
array[item++] = new TestCase( SECTION, "escape( false )", "false", escape( false ) );
array[item++] = new TestCase( SECTION, "escape( new Boolean(true) )", "true", escape(new Boolean(true)) );
array[item++] = new TestCase( SECTION, "escape( new Boolean(false) )", "false", escape(new Boolean(false)) );
array[item++] = new TestCase( SECTION, "escape( Number.NaN )", "NaN", escape(Number.NaN) );
array[item++] = new TestCase( SECTION, "escape( -0 )", "0", escape( -0 ) );
array[item++] = new TestCase( SECTION, "escape( 'Infinity' )", "Infinity", escape( "Infinity" ) );
array[item++] = new TestCase( SECTION, "escape( Number.POSITIVE_INFINITY )", "Infinity", escape( Number.POSITIVE_INFINITY ) );
array[item++] = new TestCase( SECTION, "escape( Number.NEGATIVE_INFINITY )", "-Infinity", escape( Number.NEGATIVE_INFINITY ) );
var ASCII_TEST_STRING = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789@*_+-./";
array[item++] = new TestCase( SECTION, "escape( " +ASCII_TEST_STRING+" )", ASCII_TEST_STRING, escape( ASCII_TEST_STRING ) );
// ASCII value less than
for ( var CHARCODE = 0; CHARCODE < 32; CHARCODE++ ) {
array[item++] = new TestCase( SECTION,
"escape(String.fromCharCode("+CHARCODE+"))",
"%"+ToHexString(CHARCODE),
escape(String.fromCharCode(CHARCODE)) );
}
for ( var CHARCODE = 128; CHARCODE < 256; CHARCODE++ ) {
array[item++] = new TestCase( SECTION,
"escape(String.fromCharCode("+CHARCODE+"))",
"%"+ToHexString(CHARCODE),
escape(String.fromCharCode(CHARCODE)) );
}
for ( var CHARCODE = 256; CHARCODE < 1024; CHARCODE++ ) {
array[item++] = new TestCase( SECTION,
"escape(String.fromCharCode("+CHARCODE+"))",
"%u"+ ToUnicodeString(CHARCODE),
escape(String.fromCharCode(CHARCODE)) );
}
for ( var CHARCODE = 65500; CHARCODE < 65536; CHARCODE++ ) {
array[item++] = new TestCase( SECTION,
"escape(String.fromCharCode("+CHARCODE+"))",
"%u"+ ToUnicodeString(CHARCODE),
escape(String.fromCharCode(CHARCODE)) );
}
return ( array );
}
function ToUnicodeString( n ) {
var string = ToHexString(n);
for ( var PAD = (4 - string.length ); PAD > 0; PAD-- ) {
string = "0" + string;
}
return string;
}
function ToHexString( n ) {
var hex = new Array();
for ( var mag = 1; Math.pow(16,mag) <= n ; mag++ ) {
;
}
for ( index = 0, mag -= 1; mag > 0; index++, mag-- ) {
hex[index] = Math.floor( n / Math.pow(16,mag) );
n -= Math.pow(16,mag) * Math.floor( n/Math.pow(16,mag) );
}
hex[hex.length] = n % 16;
var string ="";
for ( var index = 0 ; index < hex.length ; index++ ) {
switch ( hex[index] ) {
case 10:
string += "A";
break;
case 11:
string += "B";
break;
case 12:
string += "C";
break;
case 13:
string += "D";
break;
case 14:
string += "E";
break;
case 15:
string += "F";
break;
default:
string += hex[index];
}
}
if ( string.length == 1 ) {
string = "0" + string;
}
return string;
}
function test() {
for ( tc=0; tc < testcases.length; tc++ ) {
testcases[tc].passed = writeTestCaseResult(
testcases[tc].expect,
testcases[tc].actual,
testcases[tc].description +" = "+ testcases[tc].actual );
testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
}
stopTest();
return ( testcases );
}
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