StrPos() String Clipping - How to Match a Trailing Space?

[vitesse]

Hi Richard

just for anyone following along at home, I have written an enhanced strPos function that returns the minimum and maximum lengths as well as the usual start position:

New Line in StrPos - is it ascii linefeed <10> or Carriage Return <13>?

Hi Richard I was just working on a solution based on another thread where you were having problems with strpos clipping spaces and I also am searching for unused characters starting at chr(255) and working down. I have written a new function “StrPosAndLen” which returns the starting position as does strpos() but also has two parameters where it returns the minimum and maximum lengths. It finds a replacement character for space (if possible) as you have mentioned. Usually I use StringTheory …

It is currently a “work in progress” in that it is not extensively tested, but seems to work on my tests at home.

Richard’s idea of replacing the spaces seems like a good idea to me due to the clipping Richard mentioned. The code in the above link tries to find an unused replacement character for spaces.

@RchdR

so the use of the new’ed cstring or string is whats causing strpos to clip.

I’m a bit skeptical/sceptical about that making a difference. I suspect you made some other code change that altered things - but happy to be surprised and shown I am wrong if you can provide an example demonstrating this.

@RchdR

Even instring doesnt work as expected!

well instring() works fine for me. There are a couple of “tricks” - the default skip amount is the length of the substring being searched for, whereas usually you want it to be 1. And also if you pass your substring in a string field, you may need to clip it if you don’t want to include the trailing spaces in your search.

I did find a bug in instring() around the turn of the century, where the substring was more than 255 chars, but that was corrected years back and I am not aware of any other bugs in it.