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Re: Enum

by ase (Monk)
on Jun 21, 2000 at 05:46 UTC ( #19147=note: print w/replies, xml ) Need Help??


in reply to Enum

On page 208 of the original Camel (1st edition), There is a subroutine that I think will do what you want:
sub enum { local($_)=@_; my(@specs)=split(/,/); #changed from local to my as it is preferab +le since perl 5. my $val; for (@specs) { if (/=/) { $val = eval $_; } else { eval $_ . ' = ++$val'; } } }
An example of use is given:
&enum(<<'EOL'); $RED, $GREEN, $BLUE, $CYAN='a', $MAGENTA, $YELLOW, $BLACK=-1 EOL print "$RED $GREEN $BLUE $CYAN $MAGENTA $YELLOW $BLACK\n";
would print: 1 2 3 a b c -1
I wonder who wrote this originally, Randal or Larry? Care to tell us merlyn?
-ase

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