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The future of Text::CSV_XS - TODO

by Tux (Abbot)
on May 25, 2007 at 19:06 UTC ( #617577=perlmeditation: print w/replies, xml ) Need Help??

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    Node Type: perlmeditation [id://617577]
    Approved by kyle
    Front-paged by ysth
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    [Lady_Aleena]: Why does grep(/.*$in.*/, @my_modules) work but grep { $_ =~ /.*$in.*/; $_ } @my_modules not work? What did I do wrong in the second?
    [tobyink]: Why are you returning $_ n your grep block? You should return a boolean.
    [tobyink]: *in your grep block
    [tobyink]: You can use grep { $_ =~ /.*$in.*/; } @my_modules but why not stick to grep(/.*$in.*/, @my_modules)? (The latter is faster.)
    [shmem]: Lady_Aleena, in the first example grep evaluates the result from grep and if true, returns $_. In the second, it always returns $_
    [shmem]: ..the result from the pattern match
    [Lady_Aleena]: tobyink, I did after I failed to get the BLOCK to work. I can't seem to get my brain around grep BLOCK, though I'm okay with grep EXPR.

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