Transforming Syntax
Or: how to write the easy part of a compiler
This article has moved to my current blog. Please look there for the most up to date version. The new version includes many corrections and improvements.
This post will cover this stackoverflow question on how to translate an expression to a C-like language by user2516265. The other answers suggested regexes or treating it as Perl code *shudder*. This post aims to cover:
- parsing with Marpa::R2,
- AST manipulation,
- optimization passes,
- compilation, and
- Perl OO.
It won't cover parser theory etc. or provide a copy&paste-ready solution. The estimated size of the final code will be around