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colomon (8994)

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Journal of colomon (8994)

Sunday February 22, 2009
06:26 AM

My First Useful Perl 6 Script!

[ #38528 ]
I wanted to extend TextMate to do a case-aware search-and-replace. I decided to try it in Perl 6 because I wanted to use the :samecase modifier. Unfortunately, I was not able to get :samecase to work, but a simple modification made the script equally useful for me. I know this is mind-bogglingly simple, but it's now a practical part of my development environment for work.

my $search_word = @*ARGS.shift;
my $replacement = @*ARGS.shift;

for =$*IN -> $x
    my $y = $x.subst($, $, :g);
    my $z = $y.subst($search_word.uc, $replacement.uc, :g);
    say $z.subst($, $, :g);

I'll probably tweak this with some further improvements, including one that :samecase couldn't have handled anyway. But I just wanted to celebrate my first practical Perl 6 script!

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  • $x, $y, $z?


    • Eh, might be pathetic, but for a straightforward seven line script it's good enough. I wouldn't have used anything but $x if $x hadn't been read-only. I'm pondering making it about twice as complicated, and if I do, there will be better variable names, I promise.