vuKeepChars(*CSTRING,*CSTRING), CSTRING
Description
Returns a modified version of Strg containing only those characters found in Chars. Useful for extracting digits or identifiers from strings with mixed content.
Parameters
| Parameter |
Data Type |
Description |
| Strg |
CSTRING |
Source string to filter |
| Chars |
CSTRING |
Characters to keep (all others will be removed from Strg) |
Returns
A CSTRING containing only the characters from Strg that match those listed in Chars.
Example
Strg = 'Now is the 3time 2 for al8l good men4 to co5me to th76e aid of their country.'
Chars = '0123456789'
MESSAGE('Digits only: ' & vuKeepChars(Strg, Chars)) ! Returns '3284576'