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Re: Perl oddities

by bluto (Curate)
on Mar 01, 2005 at 16:46 UTC ( #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>);

... 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;

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 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";

    Makes me shudder every time.

Re^2: Perl oddities
by ikegami (Pope) 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.

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

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

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