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- <!DOCTYPE html>
- <head>
- <!--
- Copyright (C) 2007 Apple Inc. All rights reserved.
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- modification, are permitted provided that the following conditions
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- 2. Redistributions in binary form must reproduce the above copyright
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- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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- 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>
- </head>
- <body>
- <h3>string-base64</h3>
- <div id="console">
- </div>
- <script>
- var _sunSpiderStartDate = new Date();
- /* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
- // 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;
- document.getElementById("console").innerHTML = _sunSpiderInterval;
- </script>
- </body>
- </html>
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