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Falkkin is working on a Java Huffman encoder...

Moved only by the will to serve, I propose him an example of what he could do if he did that in Perl... :-)

$"=$/=$_;map{$0{$_}++}split//,$_=<>;@0=map{[$_,$0{$_},$_]}keys%0; $/=1+1;until(@0==1){@0=sort{$$b[1]<=>$$a[1]}@0;$t=pop@0;$p=pop@0; push@0,[[$$t[0],$$p[0]],$$t[1]+$$p[1],$$t[$/].$$p[$/]];map{map{$t {$_}=$;%$/.$t{$_}}split//;$;++}$$t[$/],$$p[$/]}s/(.)/$t{$1}/gs;sub _{my$t=pop;if(ref$t){my@t=map{if(!ref$$t[$_]){1,unpack"b8",$$t[$_]} else{0,""}}0,1;"@t[0,$/,1]"._($$t[0])._($$t[1])."$t[-1]"}}print pack"sB*",length,_($0[0][0]).$_

(This was one of my "helpers" for OPC5)
Corresponding Huffman decoder to be posted soon.


In reply to Huffman encoder by BooK

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