How to compile

Just clone the repository, then do : cargo build

How does it work

In the idea of Lex/Yacc or Flex/Bison, this program takes a grammar files as an argument and generate a lexical and a syntactic analyzer wich can be embedded in a Rust program.

For now, it handles very simple grammar file which are written as shown below :

number : [0-9]+(\.[0-9]+)?

Expression -> Product '\+' Expression
Expression -> Product '-' Expression
Expression -> Product
Product -> Factor '\*' Product
Product -> Factor '/' Product
Product -> Factor
Factor -> '\(' Expression '\)'
Factor -> number

Running the tests

Note : Test programms are also examples you can base your work on.

Example for the 'expr' test

1. Generate the parser code cargo run test/expr/src/expr.lalr
2. cd test/expr
3. Compile the test cargo build
4. Run it cargo run

This is in heavy development and should not be used yet

Feedback are always welcomed :)