Well you do not state what version of KiXtart you are using, but looking at the 4.22 manual yields:

Code:
LTrim( )

Action: Strips leading spaces from an input string and returns the result.
  
Syntax: LTRIM ("string")
  
Parameters: String 
The string from which to strip leading spaces. 
 
Returns: The input string without leading spaces.
   
See Also: RTrim( ), Trim( )
    
Example: $x = LTRIM(SUBSTR(@IPADDRESS0, 1, 3))


If you want more control to match and extract the value you should look at using Regular Expressions. Checkout this link: RFC: Regular Expression UDFs

Let me know if you have any further questions.
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