in reply to Re: Re: Re: Re: Interesting Use of Grep
in thread Interesting Use of Grep

That is odd, because this is a fairly common structure using do and last to emulate a switch statement. I use it all the time and have had no problems with it:

for( $test_value )
{
    /pattern1/ and do { something; last; };
    /pattern2/ and do { something else; last; };

    do { default action; #no last required
    };
}

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Re: Re: Re: Re: Re: Re: Interesting Use of Grep
by jynx (Priest) on Jun 30, 2001 at 02:59 UTC

    Ok,

    Apparently you're right. Earlier this year i wrote perl5.6 code that did what you said and it didn't work. It specifically didn't work because the next/last tags inside the do block weren't working. Now i write a sample script to test and be certain that it doesn't work and it does. i'm very aware of the annonymous monk's posting below saying about false values not working for the and statement, that's obvious and the code i wrote didn't make such an error.

    Well, thank you, i learned something the hard way. i'll swear on my camel that the code didn't work, but now i know different. time to go back and recode i guess...

    thank you much,
    jynx

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