SubStringLastIndex

Summary

User-Defined Function: integer uSubStringLastIndex( string vStrSrc, string vStrTst );

Returns a integer that is the positive index of the last vStrTst within vStrSrc

• vStrSrc: source string to check
• vStrTst: string to look for

if vStrTst is not found in vStrSrc -1 is returned.
the index of the first character is 0

Code: <lsl>integer uSubStringLastIndex( string vStrSrc, string vStrTst ){

   integer vIdxFnd =
     llStringLength( vStrSrc ) -
     llStringLength( vStrTst ) -
     llStringLength(
       llList2String(
         llParseStringKeepNulls( vStrSrc, (list)vStrTst, [] ),
         -1)
       );

return (vIdxFnd

Caveats

• Performs a literal match (case sensitive).
  • Wildcards and RegEx are not supported.
• Attempting to match an empty string ("") will return 0 instead of -1.

Notes

• This function is operates exactly like llSubStringIndex (including caveats), from the opposite end of the string.