--- "Nguyen, Andy" <[EMAIL PROTECTED]> wrote:
> Hi List,
>
> I am new to perl and looking for a shortcut way of doing this.
>
> # $letter could be any letter from A to L.
> if ( $letter eq "A" || $letter "B" || $letter "C" || $letter eq "D" ............ ||
>$letter eq
> "L" )
> {
> do something
> }
>
> I really don't want to repeat $letter for every letter (B-L).
One way:
if ( $letter =~ /^[A-L]$/ ) {
# do something
}
In the regular expression, [] defines a character class and A-L tells the regex that
we're trying
to match a character that is in the range A through L. I put the ^ and $ anchors on
the beginning
and end of the regex to ensure that we only have one character. ^ at the beginning of
a regex
matches the beginning of the line and $ at the end of a regex matches the end. Thus,
the regex
reads:
match the beginning of the string, find one
character from A to L inclusize and match the
end of the string
See 'perldoc perlre' for more info.
Cheers,
Curtis "Ovid" Poe
=====
Senior Programmer
Onsite! Technology (http://www.onsitetech.com/)
"Ovid" on http://www.perlmonks.org/
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