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