Hello again Monks, Thank you for your advices. I made my program with padwalker and it worked but there was some problems. The solution was not optimal in some aspects like speed and memory consumption. Also the solution was ugly.

Now I see that my question directed the issue in the wrong direction. Actually I needed two separate tools. One tool for accessing lexical variables from the caller and an another tool to simplify the resulting code after the first problem is solved.

This is the idea how the template program peeks inside the callers variables. 

sub template
{
    my $uplevel = shift;
    $uplevel->('print $x;');
    $uplevel->('print $y;');
}

my $x = 'X';
for my $y (1 .. 3) 
{ 
    template( sub{eval(shift)} );
};

[download]
Now - only the second problem needs to be solved. How to write  template( sub{eval(shift)} ); somehow shorter way?

In reply to Partially Solved: How to simulate a preprocessor macro without one? by AriSoft
in thread How to simulate a preprocessor macro without one? by AriSoft

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