There's too little context for a reasonable atempt to explain the code. For one, the sequence doesn't look right. The first part (you call it a "switch", what do you mean by that?) assumes that %checked already has values. But the values are only set in the code you say runs later. Mind, it may still make sense but it is hard to guess what that could be.

Why does it matter whether actual text appears in the tab-delimited data? The delimiters make it clear that a field is there, even if there's no data in it. If you must (untested): 

        if ($_=~/^c_/) {
                $check{$_}="CHECKED"  
                print OUT $in{ $_} ? $in{$_} : '-no data-', "\t";

[download]

Your question "Why is $check{$_} being set to "CHECKED" everytime?" doesn't make much sense. $check{$_} is a different hash field every time, it isn't set again and again. As for why this is done, you are in a better position to guess than anyone else.

Anno

In reply to Re: checkbox help by Anno
in thread checkbox help by djbryson

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