parser-c

Rust module for parsing C code. Port of Haskell's language-c, semi-automatically translated using Corollary.

This port is a work in progress. A lot of work remains to parse anything but very simple C files; while most source code has been translated from Haskell, errors in translation prevent it from matching language-c's functionality yet. Here are the next steps for achieving parity, in order:

1. Building up an equivalent test bed to language-c's, then automatically cross-check
2. Fix errors in the ported code to support those test cases
3. Converting portions of the code into Rust idioms without breaking tests
4. Figure out a porting story for the alex/happy generated parser output

parser-c requires nightly (for now). See tests/ for some working examples, or try this example:

```rust extern crate parser_c;

use parser_c::parse;

const INPUT: &'static str = r#"

int main() { printf("hello world!\n"); return 0; }

"#;

fn main() { match parse(INPUT, "simple.c") { Err(err) => { panic!("error: {:?}", err); } Ok(ast) => { println!("success: {:#?}", ast); } } } ```

Result is:

success: Right( CTranslationUnit( [ CFDefExt( CFunctionDef( [ CTypeSpec( CIntType( .. ) ) ], CDeclarator( Some( Ident( "main", 124382170, .. ) ), ...

Development

Clone this crate and install its Haskell dependencies:

git clone https://github.com/tcr/parser-c --init --recursive stack install alex happy

License

MIT