Ben, Thanks! As always, you rock! I had kind of figured that the method execution order was the issue, but was hoping to find a workaround to "trick" the excution so that the regex backref was captured before the method was called.
Very nice code and potentially very useful! I'm not entirely sure that, in my situation, it's going to be faster than using a loop with reFind() as I have currently, though I'm going to check it out with some timers later today. I'll let you know the results. What you've written, though could be tremendously useful for parsing the contents of a file and turning into workable data for reuse. In my case I'm simply replacing the user provided shorthand "tokens" so there's no need to retain the information after the token has been replaced. Nice work! Jon On Nov 15, 2007, at 11:35 AM, Ben Nadel wrote: > Jon, > > You cannot do that because the arguments of the REReplace() method are > eveluated at the initial method execution time. Back references > within a > string are fine because they are evaluated within the inner working of > the RERepalce() method. However, you cannot use them as part of > another > structure (ie, struct key) because that argument will be evaluated > before the reg-ex replace actually even runs. > > What you need to a algorithm that doesn't really do a replace but > actually returns a structure of reg-ex groups. I threw this together > in > hopes that it might help: > > http://www.bennadel.com/blog/1040-REMatchGroups-ColdFusion-User-Defined- > Function.htm > Or- http://bennadel.com/index.cfm?dax=blog:1040.view > > > ...................... > Ben Nadel > Certified Advanced ColdFusion MX7 Developer > www.bennadel.com > > Need ColdFusion Help? > www.bennadel.com/ask-ben/ > > -----Original Message----- > From: Jon Clausen [mailto:[EMAIL PROTECTED] > Sent: Wednesday, November 14, 2007 8:40 PM > To: CF-Talk > Subject: Using reReplace Backreference as StructKey or Argument > > I'm sure it's something simple that I'm missing, but I want to use a > regex backreference as the struct key (i.e. - struct["key"]) or as an > argument (i.e. - function("argument") ) but I've failed in all my > attempts so far. > > For now I've written the code out using a loop with reFind(), > returning subexpressions, mid(), etc. but it seems to me there > should be > a way to do this using reReplace() and pass the backreference as an > argument/key. Usage of evaluate() would probably be a deal-breaker > since it would be less expensive to perform the loop. > > Here's examples of what i'm trying to do: > > <!--- Trying to use backref passed as struct key ---> <cfset pageOut = > reReplace(pageContent,"<%show:([a-zA-Z0-9_]+) > %>",appSettings["\1"],"ALL")/> > > <!--- Trying to use backref passed as argument ---> <cfset pageOut = > reReplace(pageContent,"<%getModule:([a-zA-Z0-9_]+) > %>",controller.getModule("\1"),"ALL")/> > > Thoughts? > > Jon > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 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:293409 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
