He said he wanted to replace all nonalphanumerics, and I was assuming that meant white space as well, regardless of where in the string it is located.
Scot -----Original Message----- From: Janek Schleicher [mailto:[EMAIL PROTECTED]] Sent: Tuesday, June 04, 2002 8:51 AM To: [EMAIL PROTECTED] Subject: RE: Replacing with Regular expressions Scot Robnett wrote at Tue, 04 Jun 2002 05:13:13 +0200: >> $foo =~ s/\W*/_/g; >> >> http://www.oreilly.com/catalog/regex/ > ... > > I want to allow only the a-z, A-Z, and 0-9 characters and I want to replace all others with _ when > writing the file to the server. > > Can you tell me what would be this regular expression? > The regexp should be $foo =~ s/\W/_/g; \W* matches every zero length, so e.g. $a = 'x := y'; $a =~ s/\W*/_/g; print $a; prints _x__y_; (first matches 0-length before 'x', then ' := ' after x, then 0-length between ' := ' and 'y', then 0-length after 'y' ) Instead my solution would print x____y Greetings, Janek -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.368 / Virus Database: 204 - Release Date: 5/29/2002 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.368 / Virus Database: 204 - Release Date: 5/29/2002 -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
