Dear Don,
I suppose you already have a programme which converts lists into cycles.
So all you need is a piece of code which reads a file and outputs a list.
Suppose the file contains lists of integers separated by line breaks as in your
example.
LoadPackage("io"); ## package for handling input-output
streams
input:=InputTextFile("a.txt"); ## open an input stream attached to the file
list:=[];
repeat
linestring:=ReadLine(input); ## read next line from "input" as a string
if linestring<>fail
then
Add(list, EvalString(NormalizedWhitespace(linestring)));
fi;
until linestring=fail;
CloseStream(input); ## don't forget to close all streams you
opened!
Now all you have to do is convert all lists in "list" to cycles.
Hope that helps,
marc
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