[ ]|[a-z0-9]{17} Should do it...
That basically allows for a space, or for 17 alphanumeric characters. -----Original Message----- From: Rick Mason [mailto:rhma...@gmail.com] Sent: Wednesday, June 10, 2009 9:50 AM To: cf-talk Subject: Simple regex question I'm in need of some regex help. I am working with a cfinput and I need a pattern for regex validation that does the following: Field can be blank but if filled out has to be exactly 17 characters which are a combination of letters and numbers (VIN number) Know this is simple but Google seems to be failing me this morning. Thanks, Rick ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:323344 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4