Re: Regular Expression (searching from the end)
reverse the string, find the character, length of the string minus the pos of the character. Adam On Wed, 12 Jan 2005 11:39:24 +, Andrew Dixon [EMAIL PROTECTED] wrote: Hi Everyone. I need to find the last occurance of a character in a string. Is there a way I can use a regular expression to search the string from the end backwards for the character? Or is there another way I can do it using a CF function. At the moment I have a conditional loop that uses the Find() function to search until it returns 0 and then report the previous value as the last occurance. This works fine, but I feel there should be a better way. Thanks Andrew. ~| Find out how to get a fax number that sends and receives faxes using your current email address http://www.houseoffusion.com/banners/view.cfm?bannerid=64 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:190068 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
Re: Regular Expression (searching from the end)
Alernatively you can use refind and return the array thing I beleive it returns the POS and Len of all the times it found then you could just look at the last element in the array, TIMTOWTDI. Adam H On Wed, 12 Jan 2005 11:39:24 +, Andrew Dixon [EMAIL PROTECTED] wrote: Hi Everyone. I need to find the last occurance of a character in a string. Is there a way I can use a regular expression to search the string from the end backwards for the character? Or is there another way I can do it using a CF function. At the moment I have a conditional loop that uses the Find() function to search until it returns 0 and then report the previous value as the last occurance. This works fine, but I feel there should be a better way. Thanks Andrew. ~| Find out how CFTicket can increase your company's customer support efficiency by 100% http://www.houseoffusion.com/banners/view.cfm?bannerid=49 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:190070 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
Re: Regular Expression (searching from the end)
Nope. The array thing still only gives the first occurance. Andrew. ~| Discover CFTicket - The leading ColdFusion Help Desk and Trouble Ticket application http://www.houseoffusion.com/banners/view.cfm?bannerid=48 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:190071 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
RE: Regular Expression (searching from the end)
No, it returns pos and length of the subgroups, but you can use that with greedy matches to find the position: position = 0; stTmp = REFind(^.*(a),string,1,true); if(stTmp.pos[1]) position = stTmp.pos[2]; This gives the last position of a. OR you can do what you suggested yourself in your previous post. Reverse the string and look for the first occurrence. -Original Message- From: Adam Haskell [mailto:[EMAIL PROTECTED] Sent: 12 January 2005 13:16 To: CF-Talk Subject: Re: Regular Expression (searching from the end) Alernatively you can use refind and return the array thing I beleive it returns the POS and Len of all the times it found then you could just look at the last element in the array, TIMTOWTDI. Adam H On Wed, 12 Jan 2005 11:39:24 +, Andrew Dixon [EMAIL PROTECTED] wrote: Hi Everyone. I need to find the last occurance of a character in a string. Is there a way I can use a regular expression to search the string from the end backwards for the character? Or is there another way I can do it using a CF function. At the moment I have a conditional loop that uses the Find() function to search until it returns 0 and then report the previous value as the last occurance. This works fine, but I feel there should be a better way. Thanks Andrew. ~| Discover CFTicket - The leading ColdFusion Help Desk and Trouble Ticket application http://www.houseoffusion.com/banners/view.cfm?bannerid=48 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:190072 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
Re: Regular Expression (searching from the end)
Thank you very much Pascal. Worked like a dream. Andrew. ~| Discover CFTicket - The leading ColdFusion Help Desk and Trouble Ticket application http://www.houseoffusion.com/banners/view.cfm?bannerid=48 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:190089 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
Re: Regular Expression (searching from the end)
Andrew Dixon wrote: I need to find the last occurance of a character in a string. REFindNoCase(.*character, string, TRUE) will give you a position and a length. Position will always be 1, length will tell you the last occurance. Jochem ~| Stay Ahead of Hackers - Download ZoneAlarm Pro http://www.houseoffusion.com/banners/view.cfm?bannerid=65 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:190097 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
