El Tuesday 19 August 2008 01:17:59 Orson va escriure:
> I need to change perl script, but I am new to perl. Script is too long
> to copy here, but what I need is construct a reg ex pattern and store
> in variable. I need to concatenate this from many other variables.
> Then I must use this variable to do a match. Something like this:
> while (<>)
> {
> chomp;
> my $pt = "\d" . "\s" . "\d";
> if ( /$pt/ )
> {
> print("Match also using variable\n");
> }
>
> if ( /\d\s\d/ )
> {
> print("Match not using variable\n");
> }
> }
>
> The second match work if you give input like "1987 1988", but I
> cannot get first match to work. I must be confusing perl with /$pt/
>
> but i don't know how to fix. Can someone give some hint, please?
What do you want match in first place? You can store a matched pattern into a
varaible using automatic memories as follows
:
m#(pattern)#;
$variable= $1.;
--
Xavier Mas
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