mailiverse/web/WebContent/js/Utf.js

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JavaScript
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2013-07-21 13:40:17 -04:00
Utf = {
toBytes : function (string) {
// log("toBytes", string);
var bytes = [];
for (var n = 0; n < string.length; n++) {
var c = string.charCodeAt(n)&0xFFFF;
if (c < 128) {
bytes.push(c);
}
else if((c > 127) && (c < 2048)) {
bytes.push((c >> 6) | 192);
bytes.push((c & 63) | 128);
}
else {
bytes.push((c >> 12) | 224);
bytes.push(((c >> 6) & 63) | 128);
bytes.push((c & 63) | 128);
}
}
return bytes;
},
toBinString : function(bytes) {
var s="";
for (var i=0; i<bytes.length; ++i)
s+=String.fromCharCode(bytes[i]);
return s;
},
fromBinString : function(s) {
var bytes = [];
for (var i=0; i<s.length; ++i)
bytes.push(s.charCodeAt(i));
return bytes;
},
toString : function (bytes) {
var string = "";
var i = 0;
var c = c1 = c2 = 0;
while ( i < bytes.length ) {
c = bytes[i] & 0xFF;
if (c < 128) {
string += String.fromCharCode(c);
i++;
}
else if((c > 191) && (c < 224)) {
c2 = bytes[i+1];
string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
i += 2;
}
else {
c2 = bytes[i+1];
c3 = bytes[i+2];
string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
i += 3;
}
}
// log("toString",string);
return string;
}
};