that always happens to me on this list. ..tony
Tony Weeg Senior Web Developer Information System Design Navtrak, Inc. Fleet Management Solutions www.navtrak.net 410.548.2337 -----Original Message----- From: Jerry Johnson [mailto:[EMAIL PROTECTED]] Sent: Thursday, September 26, 2002 11:11 AM To: CF-Talk Subject: Line Nibbler Alert!!! Line Nibbler Alert!!!! My message was stripped of leading periods. Any dot/period character in the following email was stripped if it was the first character on a line. Is this intentional? <- here's one. .. <- here are two pairs in a row. Jerry Johnson >>> [EMAIL PROTECTED] 09/26/02 10:36AM >>> I'll take a crack at it - then Ben (and everyone else) can correct me. The players: in this place and time, it means any single character * means zero or more pcode= means the literal string pcode= (but since we used rereplacenocase, it could be PCODE= or pCoDe= etc) () in this place and time, it means to capture what's inside it in what is called a backreference [] in this place and time, it means to encapsulate a character class (a group of single characters added together and tested together) ^ in this place and time, it means NOT, as in NOT the & symbol & means the "&" character + means one or more \1 means whatever was inside the first backreference - the stuff inside the first () To read the whole string: Zero or more characters followed by the string "pcode=" followed by one or more characters that are not the & symbol followed by zero or more characters. In an expanded version of your example: index.htm?someVariabl=hiThere&someothervariable=45&pCode=00343223234322& yetanothervar=who * index.htm?someVariabl=hiThere&someothervariable=45& pCode= pcode= ([^&]+) 00343223234322 * &yetanothervar=who Replace all of the above with the first backreference (which in this case will be 00343223234322) Did this help, or make it more confusing? Jerry Johnson >>> [EMAIL PROTECTED] 09/26/02 10:06AM >>> Ben, I've seen answers like this to other questions as well. I have never quite understood what is taking place. Do you mind spending a couple of minutes to explain what ".*pcode=([^&]+).*", "\1" does? Thanks, Brian Yager President - North AL Cold Fusion Users Group http://www.nacfug.com Sr. Systems Analyst Sverdrup/CIC [EMAIL PROTECTED] (256) 842-8342 -----Original Message----- From: Ben Doom [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 25, 2002 4:54 PM To: CF-Talk Subject: RE: please do my work for me I'm assuming this is a link somewhere in some content you're cfhttp-ing, or you'd just use url.pCode. Anyhow, pcode = rereplacenocase(url, ".*pcode=([^&]+).*", "\1") Happy regexing. --Ben Doom Programmer & General Lackey Moonbow Software : -----Original Message----- : From: Cantrell, Adam [mailto:[EMAIL PROTECTED]] : Sent: Wednesday, September 25, 2002 5:38 PM : To: CF-Talk : Subject: please do my work for me : : : I want to extract a value from a URL variable which can show up : anywhere in : the URL. Here are some examples, I would want the pCode value which will : always be an integer of varying length: : : index.htm?var1=23&pCode=100&othervar=hello -------- return 100 : : index.htm?pCode=1 ------- return 1 : : index.htm?someVariabl=hiThere&someothervariable=45&pCode=00343223234322 : --------- return 00343223234322 : : If somebody can tell me the right regular expression (or if a regular : expression isn't even needed, but just some combination of CF functions) : that would be GREAT! : : Adam. : : ______________________________________________________________________ This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/[email protected]/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
