RosettaCodeData/Task/Execute-a-Markov-algorithm/Zkl/execute-a-markov-algorithm-...

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fcn parseRuleSet(lines){
if(vm.numArgs>1) lines=vm.arglist; // lines or object
ks:=L(); vs:=L();
foreach line in (lines){
if(line[0]=="#") continue; // nuke <comment>
pattern,replacement:=line.replace("\t"," ")
.split(" -> ",1).apply("strip");
ks.append(pattern); vs.append(replacement);
}
return(ks,vs);
}
fcn markov(text,rules){
ks,vs:=rules; eks:=ks.enumerate();
do{ go:=False;
foreach n,k in (eks){
if (Void!=text.find(k)){
if (Void==(v:=vs[n])) return(text);
if (v[0,1]==".") v=v[1,*] else go=True;
text=text.replace(k,v,1);
break; // restart after every rule application, unless terminating
}
}
}while(go);
text
}