Being the RegEx Ninja, my first thought is to use a regex: ([a-z0-9])\1
will find any instance of a character next to itself, so if you refind() for it across your string, you can find the repeating chars. --Ben Doom Kenny Kinds wrote: > I'm writing code to verify if a string that is entered complies with certain > criteria. > > The criteria are > > the first four characters must have at least one alphanumeric character and > one numeric character and the last 4 digits must have the same. > > Also, the string cannot have two repeating alphanumeric or numeric > characters. ex. 'AA' > > I've written the first part, but i'm having trouble with the repeating > characters. > > Can anyone point me in the right direction on how I can accomplish this? > > Thanks > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Create robust enterprise, web RIAs. Upgrade to ColdFusion 8 and integrate with Adobe Flex http://www.adobe.com/products/coldfusion/flex2/?sdid=RVJP Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:289294 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
