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	✔️	❌	❌