[GAP Forum] InputTextFile string input as Permutation?

[Matan Ziv-Av]

On Sat, 12 Oct 2013, szgycs at szemerja-szasz.hu wrote:

> Permutation is not a string, but input from InputTextFile is a string. How 
> can I transform a string to  a permutation?

There is the function EvalString().

I have a function for this purpose:

ReadAsExpression:=function(n)
   local f,e;
   f:=InputTextFile(n);
   e:=ReadAll(f);
   CloseStream(f);
   return EvalString(e);
end;



-- 
Matan Ziv-Av.                         matan at svgalib.org