/* 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string ) Description: The escape function computes a new version of a string value in which certain characters have been replaced by a hexadecimal escape sequence.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 ); }