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Re: Scaler found where opeartor expected Error

by poj (Prior)
on May 29, 2012 at 21:24 UTC ( #973128=note: print w/replies, xml ) Need Help??

in reply to Scaler found where opeartor expected Error

push @body,"<tr><td rowspan=\"${\scalar @$books}\">$Author2</td>\n"; # add \ \ > ^ ^ ^ # remove , ^

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Re^2: Scaler found where opeartor expected Error
by AnomalousMonk (Chancellor) on May 29, 2012 at 23:58 UTC

    This fixes the immediate problem and leaves behind, IMHO, a little nightmare for the poor shlub who has to maintain this code six months or a year from now; better make sure he or she does not know your name or where you live – unless the maintainer is you, in which case justice may be said to have been served! Much better, I think, to use an sprintf statement instead.

    >perl -wMstrict -le "my $books = [ qw(a b c) ]; my @body = qw(x y); my $Author2 = 'defoe'; ;; push @body, qq{<td rowspan=${\scalar @$books}>$Author2</td>}; push @body, sprintf qq{<td rowspan=%d>$Author2</td>}, scalar @$books; print qq{'$_'} for @body; " 'x' 'y' '<td rowspan=3>defoe</td>' '<td rowspan=3>defoe</td>'

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