Tech Tip: Utilty method to get substring given start and end position

PRODUCT: 4D | VERSION: 15.x | PLATFORM: Mac & Win

Published On: October 19, 2016

Here is an utilty method to get a substring of a string given it's start and end position.

// Method: UTIL_SUBSTRING
// Get Substring at given start position to given end position
// $1 - source string
// $2 - start position
// $3 - end position

$source:=$1
$start:=$2
$end:=$3
$len:=Length($source)

If ($start<1)
$start:=1
End if
If ($end>$len)
$end:=$len
End if

$0:=Substring($source;$start;($end-$start)+1)

Example:

$string:="123456789"
$sub:=UTIL_SUBSTRING($string;3;7)