Recursive Descent Parser for C

Question

I'm looking for a parser for C. Here is what I need:

1. Written in C (not C++).
2. Handwritten (not generated).
3. BSD or similarly permissive license.
4. Capable of nontrivially parsing itself (can be a subset of C).

It can be part of a project as long as it's decoupled so that I can pull out the parser.

Is there an existing parser that fulfills these requirements?

Answer 1

GCC has one in gcc/c-parser.c.

Answer 2

How about Sparse?

Answer 3

Check elsa, it uses the Generalized LR algorithm.

Its main use is for C++, but it also parses C code.

Check on its page, on the section called "How much C can Elsa parse?" which says it can parse most C programs, including the Linux kernel.

It's released under a BSD license.

Answer 4

You could try TCC. It's licensed under the Lesser GPL.

Answer 5

It seems that nwcc sufficiently agrees with your requirements.