<button>Select</button> a file to compress. If the extension is .mru, it will be uncompressed instead.<p>
View the source of this file as an example on how to integrate the modules into your webpage.<p>
To compress a file with node.js:<br>
<code>
node -e 'let j=[],k=require("fs");require("./lzw")(require("./bit")(j))(Array.from(k.readFileSync("RAWFILE")));k.writeFileSync("ZIPFILE",Buffer.from(j))'
</code><br>
To uncompress:<br>
<code>
node -e 'let j=[],k=require("fs");require("./lzw")(require("./bit")(Array.from(k.readFileSync("ZIPFILE"))))(j);k.writeFileSync("RAWFILE",Buffer.from(j))'
</code><br>
See std.awk for how to use it with JavaScriptCore.<p>
The compressor or uncompressor consists of a dictionary encoder or decoder and an entropy encoder or decoder.<br>
Dictionary encoders or decoders are: nop.js, lzw.js<br>
Entropy encoders or decoders are: rdx.js, bit.js<p>
Todo: lzmw, lzss, tbe, vlc, ans
<script>module={}</script>
<script src=bit.js></script>
<script>module.b=module.exports</script>
<script src=lzw.js></script>
<script>
const d=document,c=q=>d.createElement(q);
d.querySelector`button`.onclick=q=>Object.assign(q=c`input`,{
type:'file',
oninput:j=>Object.assign(j=new FileReader(),{onload:k=>{
k=q.files[0].name;
// buffer to hold data and data read from file
let v=[],w=v,x=new Uint8Array(j.result);
// determine if we're compressing or decompressing
k.endsWith`.mru`?[w,x,k]=[x,w,k.slice(0,-4)]:k+='.mru';
// call the loaded libraries, actual work happens here
module.exports(module.b(w))(x);
// write result to file
Object.assign(c`a`,{
href:URL.createObjectURL(new Blob([new Uint8Array(v)])),
download:k,
}).click();
}}).readAsArrayBuffer(q.files[0]),
}).click();
</script>