> -----Original Message----- > From: David B Funk [mailto:[EMAIL PROTECTED] > Sent: Tuesday, November 18, 2003 11:57 PM > To: Chris Santerre > Cc: ML-spamassassin-talk > Subject: RE: Re[2]: [SAtalk] Sanity checking new uri rules? > > > On Tue, 18 Nov 2003, Chris Santerre wrote: > > > > > uri WLS_URI_1 /^http:.*\b0-go.org\b/i > > > > Regex confusion on my part! '\b' is bounding, but I thought > that meant bound > > by space??? wouldn't this above regex _NOT_ hit : > > > > http://stuff.0-go.org/stuff > > > > Isn't it looking for: > > http://stuff. 0-go.org > > > > I'm confused! (it's not the first time, won't be the last!) > > > > --Chris > > The "\b" match operator is a bit special in that it does not > match a specific character but the "gap" between two adjacent > characters. Think of it like the "insertion" cursor of a word > processor, it points between the characters, not on a character. > Sort of like "^" points to the beginning of a line, not at the > first character of the line. > > If you know what the perl "\w" and "\W" character classes are, > then \b points to the boundary between two characters that are > matched by either the regex "\W\w" or the regex "\w\W" > > See page 180 of the O'Reilly "Programming Perl" book (Third edition). > (Good book, written by a guy named Larry Wall ;) > > So that WLS_URI_1 regex is looking for: > start-of-line, followed by the litteral character string "http:" > Possibly followed by some number of unidentified characters, the > last one of which -must- match the "\W" character class > (note that there could be zero of the above critters as the ":" > at the end of "http:" nicely matches the "\W" requirement). > Followed by the litteral character string "0-go", followed by > one random character (note that "." is a wildcard), followed by > the litteral character string "org" followed by something that > matches "\W". (Thus "orga" would not match here). > > Boy, it takes a bunch of words to explain what that little jumble > of regex does, powerful stuff these regexes ;) > > Dave
All good info, nothing to *snip* :) Thanks, I got it now. I updated my evilrules last night, and they tested great overnight! I shall post them shortly. This should speed them up greatly for everyone! Would this help even more? /?:\bsomedomain\.com\b/i would the addition of the ?: make it even faster? LOL, the only reason I recognise the name Larry Wall is because of Theo's sigs! :) I guess I need to go but that book and help support the man. --Chris Santerre ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ Spamassassin-talk mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/spamassassin-talk
