Removing leading characters from a string convert to number

[BIGAL]

I have tried to find here and in autocad help if there is a simple vl-string command to return a single number within a string eg "R.L. 98.80" want 98.80

 

I found an answer at http://www.cadtutor.net/forum/showthread.php?43262-count-the-number-a-given-text-letters-e.g.-3No.-H-s&highlight=remove thanks lee mac using normal lisp. Fairly lengthy code for what seems a simple question. If it doesn,t exist then I will use the available code.

[alanjt]

Combinevalues [Add/Divide/Multiply/Subtract object values]

Check out the subroutine I used to extract numbers from a string.

 

Lee's is much more robust, his will break up letters and numbers, mine just removes everything that isn't a valid number.