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uintarray.html
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<!doctype html>
<html>
<head>
<title>uintarray</title>
<script src="lz4.js"></script>
</head>
<body>
<div>
<input type="file" id="f">
<div id="result"></div>
</div>
<script>
// http://www.onicos.com/staff/iz/amuse/javascript/expert/utf.txt
/* utf.js - UTF-8 <=> UTF-16 convertion
*
* Copyright (C) 1999 Masanao Izumo <[email protected]>
* Version: 1.0
* LastModified: Dec 25 1999
* This library is free. You can redistribute it and/or modify it.
*/
function Utf8ArrayToStr(array) {
var out, i, len, c;
var char2, char3;
out = "";
len = array.length;
i = 0;
while(i < len) {
c = array[i++];
switch(c >> 4)
{
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
// 0xxxxxxx
out += String.fromCharCode(c);
break;
case 12: case 13:
// 110x xxxx 10xx xxxx
char2 = array[i++];
out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
break;
case 14:
// 1110 xxxx 10xx xxxx 10xx xxxx
char2 = array[i++];
char3 = array[i++];
out += String.fromCharCode(((c & 0x0F) << 12) |
((char2 & 0x3F) << 6) |
((char3 & 0x3F) << 0));
break;
}
}
return out;
}
window.onload = function () {
f.onchange = function (e) {
var fr = new FileReader;
fr.readAsArrayBuffer(e.target.files[0]);
fr.onload = function () {
var s = new Uint8Array(fr.result);
//var uint8array = new TextEncoder("utf-8").encode("ö");
var string = new TextDecoder("utf-8").decode(s);
console.log(string);
}
};
};
</script>
</body>
</html>