How about a BASIC that uses Labels instead of line numbers, and actual names for variables - some of the statements are different, for example instead of ‘Input’ labelbasic uses ‘ask’ (Each statment begins with a unique letter)
git your own copy at : https://codeberg.org/WasPentalive/LabelBasic.git
Quick complete parsing of a fixed set of keywords can easily be done with a finite state automaton.