It's embarrasing asking what seems like an elementary question, but I've looked around and didn't see anything.
Frequently I need to check if a value matches any number of values. A common solution, cited in the camel book is to use a regex, seperating the search strings with a vertical bar:
if ($foo=~/$bar|$baz|$boo/){
print "yep!\n";
}
While that's very easy, it's not as fast as using a comparison operator such as 'eq' or '=='. However using these often leads to redundant and cumbersome looking code:
if (($foo eq $bar) || ($foo eq $baz) || ($foo eq $boo)){
print "yep!\n";
}
or the much malined:
if ($foo eq $bar){
print "yep!\n";
}
elsif ($foo eq $baz){
print "yep!\n";
}
elsif ($foo eq $boo){
print "yep!\n";
}
Is there way of using a single comparison operation against several values, grouping them together much as you can do with a single regex statement, without the overhead of the regex?
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