Topic: Is there a way to change a bunch of strings at one time?

[HasanCAD]

For example
C1 > C12
C5 > C62
TOP > BOTT
...

AND SO ON

[HasanCAD]

I got it
Thanks LEE
http://www.lee-mac.com/bfind.html

[Kerry]

Will the search string be the complete target string or will it be contained in the target string ( a substring ) ?
 
Will the search string and replacement string be string values or variables ?

The first thing you could do is build a reference list for your translations

I'll make some assumptions about your intent.

Code - Auto/Visual Lisp: [Select]

1.  
2. (setq translationList
3.        (list (list "C1" "C12")
4.              (list "C5" "C62")
5.              (list "TOP" "BTM")
6.              (list "SO" "ON")
7.              
8.        )
9. )
10.  
11.  
12. (defun getRef (key)
13.   (cdr (assoc key translationList))
14. )
15.  
16.  
17. ;; Test the function just to be sure
18. (getRef "CAT")  ;;==> nil
19. (getref "TOP")  ;;==> ("BTM")
20. (car (getRef "CAT") ) ;;==> nil
21. (car (getRef "C1") )  ;;==> "C12"
22.  
23.  
24.  
25.  
26. ;; Now write a tester
27. (setq targetString "C5" )
28. (if  (setq replacement (car (getRef targetString) ))
29.   (setq targetString replacement)
30. )  
31.  
32. (alert (strcat "targetString value is now\n" targetString))

[HasanCAD]

While start to write a lisp, comes in mind it is very hard to do.
But when Kerry reply the post comes in mind the teacher while teaching me the lesson step by step.
Thanks Kerry for your very simple and easy way.

[Kerry]

Thanks HasanCAD.
I teach the same way my brain usually works ... in little steps 
and I do try very hard to keep stuff simple.