VTL - String operators

Name	Symbol	String	Component	Dataset
String concatenation	||	✔️	✔️	✔️
Whitespace removal	trim, rtrim, ltrim	✔️	✔️	✔️
Character case conversion	upper/lower	✔️	✔️	✔️
Sub-string extraction	substr	✔️	✔️	✔️
String pattern replacement	replace	✔️	✔️	✔️
String pattern location	instr	✔️	✔️	✔️
String length	length	✔️	✔️	✔️