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Re: Perl oddities

by bluto (Curate)
on Mar 01, 2005 at 16:46 UTC ( [id://435518]=note: print w/replies, xml ) Need Help??


in reply to Perl oddities

print FH @list

Normally this doesn't bother me unless I have to use parens (due to a parsing or emacs alignment issue)... 

print(FH <list>);

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... looks even worse.

The other thing I think is odd is how split() removes null fields at the end of a line if you don't give a LIMIT argument. Normally when I process a delimited file I expect each line to have the same number of fields, though some may be empty. For short scripts I tend to write quick sanity checks like this... 

my @values = split /:/, $line;
die "invalid line: '$line'" unless @values == 7;

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It looks nice, but I have to remember to go back and set LIMIT to a negative (or large) number.

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Re^2: Perl oddities
by TimToady (Parson) on Mar 01, 2005 at 21:08 UTC
    In Perl 6 it's probably one of 
        print($fh: @list);
    $fh.print(@list);

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    instead, or maybe you'll use pipes: 
        @list ==> $fh.print;
    $fh.print <== @list;

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    As for split, we haven't decided yet whether to change the default. I can argue it both ways.

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Re^2: Perl oddities
by Mugatu (Monk) on Mar 01, 2005 at 17:15 UTC
    Normally this doesn't bother me unless I have to use parens

    It's also kind of odd when your filehandle is not a simple scalar or bareword:

    open $hash{foo}, ">", "foobar";
print { $hash{foo} } "Test\n";

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    Makes me shudder every time.

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Re^2: Perl oddities
by ikegami (Patriarch) on Mar 01, 2005 at 20:53 UTC

    I do it this way:
    print FH ('test', 'ing', 1, 2, 3);

    Actually, I lied. I simply don't use barewords filehandles.

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