/* /_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ charset = shift_jis +++ Base64 Encode / Decode +++ LastModified : 2006-11/08 Powered by kerry http://202.248.69.143/~goma/ 動作ブラウザ :: IE4+ , NN4.06+ , Gecko , Opera6+ * [RFC 2045] Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies ftp://ftp.isi.edu/in-notes/rfc2045.txt /_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ * Usage: // エンコード b64_string = base64.encode( my_data [, strMode] ); // デコード my_data = base64.decode( b64_string [, strMode] ); strMode -> 入力データが文字列の場合 1 を /_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ */ base64 = new function() { var utfLibName = "utf"; var b64char = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; var b64encTable = b64char.split(""); var b64decTable = []; for (var i=0; i0; i--) _ary[_ary.length] = 0; for (i=0; i<_ary.length; i+=3) { tmp = (_ary[i]<<16) | (_ary[i+1]<<8) | _ary[i+2]; b64 += b64encTable[ (tmp >>>18) & 0x3f] + b64encTable[ (tmp >>>12) & 0x3f] + b64encTable[ (tmp >>> 6) & 0x3f] + b64encTable[ tmp & 0x3f]; } if (md) // 3の倍数にパディングした 0x0 分 = に置き換え { md = 3- md; b64 = b64.substr(0, b64.length- md); while (md--) b64 += "="; } return b64; } this.decode = function(_b64, _strMode) { var tmp = decoder( _b64 ); return _strMode? packUTF8(tmp): packChar(tmp); } var decoder = function(_b64) { _b64 = _b64.replace(/[^A-Za-z0-9\+\/]/g, ""); var md = _b64.length % 4; var j, i, tmp; var dat = []; // replace 時 = も削っている。その = の代わりに 0x0 を補間 if (md) for (i=0; i<4-md; i++) _b64 += "A"; for (j=i=0; i<_b64.length; i+=4, j+=3) { tmp = (b64decTable[_b64.charAt( i )] <<18) | (b64decTable[_b64.charAt(i+1)] <<12) | (b64decTable[_b64.charAt(i+2)] << 6) | b64decTable[_b64.charAt(i+3)]; dat[ j ] = tmp >>> 16; dat[j+1] = (tmp >>> 8) & 0xff; dat[j+2] = tmp & 0xff; } // 補完された 0x0 分削る if (md) dat.length -= [0,0,2,1][md]; return dat; } var packUTF8 = function(_x){ return window[utfLibName].packUTF8(_x) }; var unpackUTF8 = function(_x){ return window[utfLibName].unpackUTF8(_x) }; var packChar = function(_x){ return window[utfLibName].packChar(_x) }; var unpackChar = function(_x){ return window[utfLibName].unpackChar(_x) }; } /* /_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ charset = shift_jis +++ UTF8/16 ライブラリ +++ LastModified : 2006-10/16 Powered by kerry http://202.248.69.143/~goma/ 動作ブラウザ :: IE4+ , NN4.06+ , Gecko , Opera6+ * [RFC 2279] UTF-8, a transformation format of ISO 10646 ftp://ftp.isi.edu/in-notes/rfc2279.txt * [RFC 1738] Uniform Resource Locators (URL) ftp://ftp.isi.edu/in-notes/rfc1738.txt /_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ Usage: // 文字列を UTF16 (文字コード) へ utf16code_array = utf.unpackUTF16( my_string ); // 文字列を UTF8 (文字コード) へ utf8code_array = utf.unpackUTF8( my_string ); // UTF8 (文字コード) から文字列へ。 utf.unpackUTF8() したものを元に戻す my_string = utf.packUTF8( utf8code_array ); // UTF8/16 (文字コード) を文字列へ my_string = utf.packChar( utfCode_array ); // UTF16 (文字コード) から UTF8 (文字コード) へ utf8code_array = utf.toUTF8( utf16code_array ); // UTF8 (文字コード) から UTF16 (文字コード) へ utf16code_array = utf.toUTF16( utf8code_array ); // URL 文字列へエンコード url_string = utf.URLencode( my_string ); // URL 文字列からデコード my_string = utf.URLdecode( url_string ); /_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ */ utf = new function() { this.unpackUTF16 = function(_str) { var i, utf16=[]; for (i=0; i<_str.length; i++) utf16[i] = _str.charCodeAt(i); return utf16; } this.unpackChar = function(_str) { var utf16 = this.unpackUTF16(_str); var i,n, tmp = []; for (n=i=0; i> 8; tmp[n++] = utf16[i] & 0xff; } } return tmp; } this.packChar = this.packUTF16 = function(_utf16) { var i, str = ""; for (i in _utf16) str += String.fromCharCode(_utf16[i]); return str; } this.unpackUTF8 = function(_str) { return this.toUTF8( this.unpackUTF16(_str) ); } this.packUTF8 = function(_utf8) { return this.packUTF16( this.toUTF16(_utf8) ); } this.toUTF8 = function(_utf16) { var utf8 = []; var idx = 0; var i, j, c; for (i=0; i<_utf16.length; i++) { c = _utf16[i]; if (c <= 0x7f) utf8[idx++] = c; else if (c <= 0x7ff) { utf8[idx++] = 0xc0 | (c >>> 6 ); utf8[idx++] = 0x80 | (c & 0x3f); } else if (c <= 0xffff) { utf8[idx++] = 0xe0 | (c >>> 12 ); utf8[idx++] = 0x80 | ((c >>> 6 ) & 0x3f); utf8[idx++] = 0x80 | (c & 0x3f); } else { j = 4; while (c >> (6*j)) j++; utf8[idx++] = ((0xff00 >>> j) & 0xff) | (c >>> (6*--j) ); while (j--) utf8[idx++] = 0x80 | ((c >>> (6*j)) & 0x3f); } } return utf8; } this.toUTF16 = function(_utf8) { var utf16 = []; var idx = 0; var i,s; for (i=0; i<_utf8.length; i++, idx++) { if (_utf8[i] <= 0x7f) utf16[idx] = _utf8[i]; else { if ( (_utf8[i]>>5) == 0x6) { utf16[idx] = ( (_utf8[i] & 0x1f) << 6 ) | ( _utf8[++i] & 0x3f ); } else if ( (_utf8[i]>>4) == 0xe) { utf16[idx] = ( (_utf8[i] & 0xf) << 12 ) | ( (_utf8[++i] & 0x3f) << 6 ) | ( _utf8[++i] & 0x3f ); } else { s = 1; while (_utf8[i] & (0x20 >>> s) ) s++; utf16[idx] = _utf8[i] & (0x1f >>> s); while (s-->=0) utf16[idx] = (utf16[idx] << 6) ^ (_utf8[++i] & 0x3f); } } } return utf16; } this.URLencode = function(_str) { return _str.replace(/([^a-zA-Z0-9_\-\.])/g, function(_tmp, _c) { if (_c == "\x20") return "+"; var tmp = utf.toUTF8( [_c.charCodeAt(0)] ); var c = ""; for (var i in tmp) { i = tmp[i].toString(16); if (i.length == 1) i = "0"+ i; c += "%"+ i; } return c; } ); } this.URLdecode = function(_dat) { _dat = _dat.replace(/\+/g, "\x20"); _dat = _dat.replace( /%([a-fA-F0-9][a-fA-F0-9])/g, function(_tmp, _hex){ return String.fromCharCode( parseInt(_hex, 16) ) } ); return this.packChar( this.toUTF16( this.unpackUTF16(_dat) ) ); } }