Hello Jonathan & All, Thank you for taking the time to answer. I "thought" that the $1 was locally scoped but didn't want to "assume" it. Better not to assume things with Perl has been my experience.
I don't fully understand the trinary operator. However I'll research this tonight. My main concern was that I didn't want people to be able to gain any access to my server using my form as a gateway. Is there a better way to filter/secure input to my script when using CGI.pm? Is the input automagically filtered when using CGI.pm? I'm not finding anything about this subject in the CGI.pm docs. Am I not looking hard enough? Again, thank you for your time & help. -- Best regards, K.L. Hayes mailto:[EMAIL PROTECTED] +=====================================================+ + "Only two things are infinite, the universe and + + human stupidity, and I'm not sure about the former."+ + -- Albert Einstien + +=====================================================+ Monday, January 07, 2002, 1:50:39 PM, you wrote: >> 1. Why doesn't "use strict" complain about the $1 not >> being declared? JEP> $1, $2 etc are locally scoped variables which come from the JEP> regex. A regex like: JEP> m/(..)(.*)/ JEP> will place the first two characters into $1, and the rest JEP> into $2 - according to the parathesis. >> 2. How can I filter ALL of my form input variables with >> this regex? Or maybe better asked; How can this be >> WRITTEN to filter ALL of my form variables at once? JEP> Usually you don't want to use the same one for all, JEP> although you can. Do something like: JEP> foreach ($value1, $value2, $value3) { JEP> /^(................)$/ ? $_=$1 : undef $_; JEP> } JEP> The ? : is a special trinary operator which effectively JEP> does: JEP> if (...) {...} else {...} JEP> (...) ? {...} : {...} JEP> Take care, JEP> Jonathan Paton JEP> __________________________________________________ JEP> Do You Yahoo!? JEP> Everything you'll ever need on one web page JEP> from News and Sport to Email and Music Charts JEP> http://uk.my.yahoo.com -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
