flex(1) and bison(1) playground

The purpose of this repository is self-education of flex and bison.

It contains different exercises:

1. bare lexer: a lexer skeleton to tokenize a char stream
2. simple parser: simple lexer + parser to evaluate add/sub expressions
3. appa parser: lexer + parser for the language APPA invented for this exercise

License

This project is licensed under MIT license.