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Re: Nested Loop Problems

by brx (Pilgrim)
on May 02, 2012 at 20:11 UTC ( #968529=note: print w/ replies, xml ) Need Help??

in reply to Nested Loop Problems

Take care to context (list or scalar) when you use split.

#!perl my @lines=<DATA>; for my $line (@lines) { chomp $line; my @arr = split/,/,$line; print "$arr[0]: $arr[1], $arr[2] and $arr[3]\n"; } __DATA__ name1,a1,b1,c1 name2,a2,b2,c2
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Re^2: Nested Loop Problems
by cuautemoc (Initiate) on May 02, 2012 at 22:15 UTC

    Awesome, that worked. I'm still confused as to context; was I treating it as a scalar? I looked through help file for split, but I guess I don't understand the difference.

    Anyway, I've got it working. Thanks for the advice!

      About variables and context, see pelrdata

      $list=split ...: 'split' in scalar context because '$list' is a scalar value (split: In scalar context, returns the number of fields found.)

      @list=split ...: 'split' in list context and returns a list because '@list' expects a list value.

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