Re: Nested Loop Problems


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Re: Nested Loop Problems

by brx (Pilgrim)

on May 02, 2012 at 20:11 UTC ( [id://968529]=note: print w/replies, xml )

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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!	[reply]
Re^3: Nested Loop Problems by brx (Pilgrim) on May 03, 2012 at 07:44 UTC
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.	[reply] [d/l] [select]

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