I've finally begun to understand the complexity behind creating an interpreter and a compiler. I've built several versions of TinyBasic, 1964 (Dartmouth) Basic, and my own expansions on those languages before getting to this point. The most recent project is one I call Open Source Basic... because I could think of no other features of the language that would interest people. To be able to open up the source of the language and understand how some complex things are done (how scanning, parsing, interpreting, and compiling are done)
Open Source Basic is first interpreted into a stack based language. That stack based language is then interpreted and executed immediately or turned into a CLR executable.
My questions all boil down to this:
- What are the basic features/constructs of a Basic-based language? I have these basic constructs already: Assignments, Expressions, Variables, some functions (Random, ToUpper, ToLower), Looping (for and do-while/until), If (block and single-line) Else decisions, console based input (Input) and output (Print), and sub-routines (with no parameters, yet).
- When I'm 'done' adding the basic constructs onto my language - how should I branch out? Into what domain(s)? In other words, what direction(s) should my open source basic language take once I've got all the generic constructs working?
Thank you for your time,