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author | friendica <info@friendica.com> | 2013-11-07 23:25:13 -0800 |
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committer | friendica <info@friendica.com> | 2013-11-07 23:25:13 -0800 |
commit | 3a9cbcaf011f5c5d423e1cd99b43442669692129 (patch) | |
tree | d160f11dd97871d94ffe6e6d10ea48ce57eed357 /library/cryptojs/components/enc-utf16.js | |
parent | 90ab0d963bf5074643c6f275dbb8595b6c51a03d (diff) | |
download | volse-hubzilla-3a9cbcaf011f5c5d423e1cd99b43442669692129.tar.gz volse-hubzilla-3a9cbcaf011f5c5d423e1cd99b43442669692129.tar.bz2 volse-hubzilla-3a9cbcaf011f5c5d423e1cd99b43442669692129.zip |
Wankers.
Diffstat (limited to 'library/cryptojs/components/enc-utf16.js')
-rw-r--r-- | library/cryptojs/components/enc-utf16.js | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/library/cryptojs/components/enc-utf16.js b/library/cryptojs/components/enc-utf16.js new file mode 100644 index 000000000..295d24e5e --- /dev/null +++ b/library/cryptojs/components/enc-utf16.js @@ -0,0 +1,135 @@ +/* +CryptoJS v3.1.2 +code.google.com/p/crypto-js +(c) 2009-2013 by Jeff Mott. All rights reserved. +code.google.com/p/crypto-js/wiki/License +*/ +(function () { + // Shortcuts + var C = CryptoJS; + var C_lib = C.lib; + var WordArray = C_lib.WordArray; + var C_enc = C.enc; + + /** + * UTF-16 BE encoding strategy. + */ + var Utf16BE = C_enc.Utf16 = C_enc.Utf16BE = { + /** + * Converts a word array to a UTF-16 BE string. + * + * @param {WordArray} wordArray The word array. + * + * @return {string} The UTF-16 BE string. + * + * @static + * + * @example + * + * var utf16String = CryptoJS.enc.Utf16.stringify(wordArray); + */ + stringify: function (wordArray) { + // Shortcuts + var words = wordArray.words; + var sigBytes = wordArray.sigBytes; + + // Convert + var utf16Chars = []; + for (var i = 0; i < sigBytes; i += 2) { + var codePoint = (words[i >>> 2] >>> (16 - (i % 4) * 8)) & 0xffff; + utf16Chars.push(String.fromCharCode(codePoint)); + } + + return utf16Chars.join(''); + }, + + /** + * Converts a UTF-16 BE string to a word array. + * + * @param {string} utf16Str The UTF-16 BE string. + * + * @return {WordArray} The word array. + * + * @static + * + * @example + * + * var wordArray = CryptoJS.enc.Utf16.parse(utf16String); + */ + parse: function (utf16Str) { + // Shortcut + var utf16StrLength = utf16Str.length; + + // Convert + var words = []; + for (var i = 0; i < utf16StrLength; i++) { + words[i >>> 1] |= utf16Str.charCodeAt(i) << (16 - (i % 2) * 16); + } + + return WordArray.create(words, utf16StrLength * 2); + } + }; + + /** + * UTF-16 LE encoding strategy. + */ + C_enc.Utf16LE = { + /** + * Converts a word array to a UTF-16 LE string. + * + * @param {WordArray} wordArray The word array. + * + * @return {string} The UTF-16 LE string. + * + * @static + * + * @example + * + * var utf16Str = CryptoJS.enc.Utf16LE.stringify(wordArray); + */ + stringify: function (wordArray) { + // Shortcuts + var words = wordArray.words; + var sigBytes = wordArray.sigBytes; + + // Convert + var utf16Chars = []; + for (var i = 0; i < sigBytes; i += 2) { + var codePoint = swapEndian((words[i >>> 2] >>> (16 - (i % 4) * 8)) & 0xffff); + utf16Chars.push(String.fromCharCode(codePoint)); + } + + return utf16Chars.join(''); + }, + + /** + * Converts a UTF-16 LE string to a word array. + * + * @param {string} utf16Str The UTF-16 LE string. + * + * @return {WordArray} The word array. + * + * @static + * + * @example + * + * var wordArray = CryptoJS.enc.Utf16LE.parse(utf16Str); + */ + parse: function (utf16Str) { + // Shortcut + var utf16StrLength = utf16Str.length; + + // Convert + var words = []; + for (var i = 0; i < utf16StrLength; i++) { + words[i >>> 1] |= swapEndian(utf16Str.charCodeAt(i) << (16 - (i % 2) * 16)); + } + + return WordArray.create(words, utf16StrLength * 2); + } + }; + + function swapEndian(word) { + return ((word << 8) & 0xff00ff00) | ((word >>> 8) & 0x00ff00ff); + } +}()); |