Re: case escape characters

Wow.. it took me a bit to decipher what you are trying to do. I can say pretty much off the bat that you are going to want to do some overhauling on how you're thinking this snippet through. You're trying to replace a character with something new (in this case you're adding an escaped character).. how do we perl-ites usually do that? uh-huh.. you guessed it s/// (or tr///, but that's not as appropriate here). You'll prolly want to throw the entire string at your sub and return it's modified form.. something like

$string = adjust_case('s', "stuff\n");
print $string; # which would print Stuff with a newline
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Prolly not exactly what you're lookin for, but hopefully will allow you to see your objective a little differently.

-SynZero

Sleep Deprived

Comment on Re: case escape characters Download Code

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Re: Re: case escape characters
by vladb (Vicar) on Mar 02, 2002 at 04:18 UTC

use strict;

sub to_case
{
    my ($char) = @_;

    if ($char eq "\U$char") {
        return sub {uc(shift)};
    } else {
        return sub {lc(shift)};
    }
}

print to_case("FOO")->("bAr") ."\n";
print to_case("foo")->("BaR") ."\n";
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BAR
bar
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