Websites/webkit.org/perf/sunspider-0.9/string-base64.html - WebKit - Git at Google

 <!DOCTYPE html>
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 <!--
  Copyright (C) 2007 Apple Inc.  All rights reserved.

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  1. Redistributions of source code must retain the above copyright
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  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.

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  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 <title>SunSpider string-base64</title>
 <link rel="stylesheet" href="sunspider.css">
 </head>

 <body>
 <h3>string-base64</h3>
 <div id="console">
 </div>
 <script src="sunspider-record-result.js"></script>
 <script>

 var _sunSpiderStartDate = new Date();

 /* ***** 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 XML-RPC Client component.
  *
  * The Initial Developer of the Original Code is
  * Digital Creations 2, Inc.
  * Portions created by the Initial Developer are Copyright (C) 2000
  * the Initial Developer. All Rights Reserved.
  *
  * Contributor(s):
  *   Martijn Pieters <mj@digicool.com> (original author)
  *   Samuel Sieb <samuel@sieb.net>
  *
  * 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 ***** */

 // From: http://lxr.mozilla.org/mozilla/source/extensions/xml-rpc/src/nsXmlRpcClient.js#956

 /* Convert data (an array of integers) to a Base64 string. */
 var toBase64Table = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
 var base64Pad = '=';

 function toBase64(data) {
     var result = '';
     var length = data.length;
     var i;
     // Convert every three bytes to 4 ascii characters.
     for (i = 0; i < (length - 2); i += 3) {
         result += toBase64Table[data[i] >> 2];
         result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
         result += toBase64Table[((data[i+1] & 0x0f) << 2) + (data[i+2] >> 6)];
         result += toBase64Table[data[i+2] & 0x3f];
     }

     // Convert the remaining 1 or 2 bytes, pad out to 4 characters.
     if (length%3) {
         i = length - (length%3);
         result += toBase64Table[data[i] >> 2];
         if ((length%3) == 2) {
             result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
             result += toBase64Table[(data[i+1] & 0x0f) << 2];
             result += base64Pad;
         } else {
             result += toBase64Table[(data[i] & 0x03) << 4];
             result += base64Pad + base64Pad;
         }
     }

     return result;
 }

 /* Convert Base64 data to a string */
 var toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63,
     52,53,54,55, 56,57,58,59, 60,61,-1,-1, -1, 0,-1,-1,
     -1, 0, 1, 2,  3, 4, 5, 6,  7, 8, 9,10, 11,12,13,14,
     15,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,-1,
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];

 function base64ToString(data) {
     var result = '';
     var leftbits = 0; // number of bits decoded, but yet to be appended
     var leftdata = 0; // bits decoded, but yet to be appended

     // Convert one by one.
     for (var i = 0; i < data.length; i++) {
         var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
         var padding = (data[i] == base64Pad);
         // Skip illegal characters and whitespace
         if (c == -1) continue;

         // Collect data into leftdata, update bitcount
         leftdata = (leftdata << 6) | c;
         leftbits += 6;

         // If we have 8 or more bits, append 8 bits to the result
         if (leftbits >= 8) {
             leftbits -= 8;
             // Append if not padding.
             if (!padding)
                 result += String.fromCharCode((leftdata >> leftbits) & 0xff);
             leftdata &= (1 << leftbits) - 1;
         }
     }

     // If there are any bits left, the base64 string was corrupted
     if (leftbits)
         throw Components.Exception('Corrupted base64 string');

     return result;
 }

 var str = "";

 for ( var i = 0; i < 8192; i++ )
         str += String.fromCharCode( (25 * Math.random()) + 97 );

 for ( var i = 8192; i <= 16384; i *= 2 ) {

     var base64;

     base64 = toBase64(str);
     base64ToString(base64);

     // Double the string
     str += str;
 }

 toBinaryTable = null;


 var _sunSpiderInterval = new Date() - _sunSpiderStartDate;

 record(_sunSpiderInterval);
 </script>


 </body>
 </html>
	<!DOCTYPE html>
	<head>
	<!--
	Copyright (C) 2007 Apple Inc. All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions
	are met:
	1. Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.
	2. Redistributions in binary form must reproduce the above copyright
	notice, this list of conditions and the following disclaimer in the
	documentation and/or other materials provided with the distribution.

	THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
	EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
	CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
	OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	-->

	<title>SunSpider string-base64</title>
	<link rel="stylesheet" href="sunspider.css">
	</head>

	<body>
	<h3>string-base64</h3>
	<div id="console">
	</div>
	<script src="sunspider-record-result.js"></script>
	<script>

	var _sunSpiderStartDate = new Date();

	/* *** 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 XML-RPC Client component.
	*
	* The Initial Developer of the Original Code is
	* Digital Creations 2, Inc.
	* Portions created by the Initial Developer are Copyright (C) 2000
	* the Initial Developer. All Rights Reserved.
	*
	* Contributor(s):
	* Martijn Pieters <mj@digicool.com> (original author)
	* Samuel Sieb <samuel@sieb.net>
	*
	* 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 *** */

	// From: http://lxr.mozilla.org/mozilla/source/extensions/xml-rpc/src/nsXmlRpcClient.js#956

	/* Convert data (an array of integers) to a Base64 string. */
	var toBase64Table = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
	var base64Pad = '=';

	function toBase64(data) {
	var result = '';
	var length = data.length;
	var i;
	// Convert every three bytes to 4 ascii characters.
	for (i = 0; i < (length - 2); i += 3) {
	result += toBase64Table[data[i] >> 2];
	result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
	result += toBase64Table[((data[i+1] & 0x0f) << 2) + (data[i+2] >> 6)];
	result += toBase64Table[data[i+2] & 0x3f];
	}

	// Convert the remaining 1 or 2 bytes, pad out to 4 characters.
	if (length%3) {
	i = length - (length%3);
	result += toBase64Table[data[i] >> 2];
	if ((length%3) == 2) {
	result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
	result += toBase64Table[(data[i+1] & 0x0f) << 2];
	result += base64Pad;
	} else {
	result += toBase64Table[(data[i] & 0x03) << 4];
	result += base64Pad + base64Pad;
	}
	}

	return result;
	}

	/* Convert Base64 data to a string */
	var toBinaryTable = [
	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63,
	52,53,54,55, 56,57,58,59, 60,61,-1,-1, -1, 0,-1,-1,
	-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11,12,13,14,
	15,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,-1,
	-1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
	41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
	];

	function base64ToString(data) {
	var result = '';
	var leftbits = 0; // number of bits decoded, but yet to be appended
	var leftdata = 0; // bits decoded, but yet to be appended

	// Convert one by one.
	for (var i = 0; i < data.length; i++) {
	var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
	var padding = (data[i] == base64Pad);
	// Skip illegal characters and whitespace
	if (c == -1) continue;

	// Collect data into leftdata, update bitcount
	leftdata = (leftdata << 6) \| c;
	leftbits += 6;

	// If we have 8 or more bits, append 8 bits to the result
	if (leftbits >= 8) {
	leftbits -= 8;
	// Append if not padding.
	if (!padding)
	result += String.fromCharCode((leftdata >> leftbits) & 0xff);
	leftdata &= (1 << leftbits) - 1;
	}
	}

	// If there are any bits left, the base64 string was corrupted
	if (leftbits)
	throw Components.Exception('Corrupted base64 string');

	return result;
	}

	var str = "";

	for ( var i = 0; i < 8192; i++ )
	str += String.fromCharCode( (25 * Math.random()) + 97 );

	for ( var i = 8192; i <= 16384; i *= 2 ) {

	var base64;

	base64 = toBase64(str);
	base64ToString(base64);

	// Double the string
	str += str;
	}

	toBinaryTable = null;


	var _sunSpiderInterval = new Date() - _sunSpiderStartDate;

	record(_sunSpiderInterval);
	</script>


	</body>
	</html>