Oops! Al was correct. The * says "any number of occurrences of the previous group." So all together, the expression '^[A-Za-z0-9]*$' means:
^ the beginning of the string, followed by [A-Za-z0-9] any alphanumeric character, * repeated zero or more times (or more literally, *occurring* zero or more times), followed by $ the end of the string. Thanks to Al - for some reason I did not get your message in my inbox, but you were spot on! Thanks, David -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Fuqua Sent: Tuesday, February 05, 2008 3:26 PM To: [email protected] Subject: RE: [plum] Plum validate input That worked. Just curious, what is the difference made by the * symbol? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Al Rogers Sent: Tuesday, February 05, 2008 2:49 PM To: [email protected] Subject: RE: [plum] Plum validate input Thanks, Dave... I also love Plum. Doesn't your expression below need to include a * as in: '^[A-Za-z0-9]*$' Al -------------------------------- Al Rogers [EMAIL PROTECTED] Global SchoolNet Foundation http://www.globalschoolnet.org > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of David Churvis > Sent: Tuesday, February 05, 2008 9:06 AM > To: [email protected] > Subject: RE: [plum] Plum validate input > > Hi Mark, > > In order to validate that there is nothing but alphanumeric > characters, use > an expression like "^[A-Za-z0-9]$" - the ^ matches the > beginning of the line > and the $ matches the end. All "[a-z0-9]" would match is > that there is an > alphanumeric character in the string at all. The > carat-dollar confusion is > such a big topic in regex circles and we were originally > considering adding > them automatically. Let me know if it works for you :) > > Hope this helps, > David Churvis > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Mark Fuqua > Sent: Tuesday, February 05, 2008 11:38 AM > To: [email protected] > Subject: [plum] Plum validate input > > I love plum and today I saw Adam post a reply on > cftalk...maybe there is > hope for the world after all. > > Has any one on the list (is any one still on the list?) used > the regular > expression attribute of the validateinput tag? > > I was trying to use a simple regex yesterday (disclaimer: I > don't really > understand regular expressions) and wasn't able to get it to > work. I was > trying to verify that the input had no special characters > and no spaces. I > tried a bunch of different combinations, but this is the one > I most thought > should work. [a-z0-9]. > > Whatever I tried, it either passed every input or failed every input, > irregardless of whether or not there were special characters > or spaces. > > Then I had this crazy idea that I should add quotes to the > lines in the > validateinput tag that do the check as so... > > Take the existing REFind: > > <!--- Evaluate against a regular expression ---> > <cfif Len(Trim(Attributes.regularExpression))> > <cfif REFind(Attributes.regularExpression, > Attributes.value) EQ 0> > <cfthrow type="Validation.InvalidData" > > message="#Attributes.regularExpressionMessage#" > errorCode="62200"> > </cfif> > </cfif> > > And add some quotes: > > <!--- Evaluate against a regular expression ---> > <cfif Len(Trim(Attributes.regularExpression))> > <cfif REFind("Attributes.regularExpression", > Attributes.value) EQ 0> > <cfthrow type="Validation.InvalidData" > > message="#Attributes.regularExpressionMessage#" > errorCode="62200"> > </cfif> > </cfif> > > But that didn't work either. > > > > Any ideas? > > Mark Fuqua > > > > ************************************************************* > ********* > You can subscribe to and unsubscribe from lists, and you can change > your subscriptions between normal and digest modes here: > > http://www.productivityenhancement.com/support/DiscussionList > sForm.cfm > ************************************************************* > ********* > > > ************************************************************* > ********* > You can subscribe to and unsubscribe from lists, and you can change > your subscriptions between normal and digest modes here: > > http://www.productivityenhancement.com/support/DiscussionList > sForm.cfm > ************************************************************* > ********* > ********************************************************************** You can subscribe to and unsubscribe from lists, and you can change your subscriptions between normal and digest modes here: http://www.productivityenhancement.com/support/DiscussionListsForm.cfm ********************************************************************** ********************************************************************** You can subscribe to and unsubscribe from lists, and you can change your subscriptions between normal and digest modes here: http://www.productivityenhancement.com/support/DiscussionListsForm.cfm ********************************************************************** ********************************************************************** You can subscribe to and unsubscribe from lists, and you can change your subscriptions between normal and digest modes here: http://www.productivityenhancement.com/support/DiscussionListsForm.cfm **********************************************************************
