Function cmark_gfm_sys::cmark_find_syntax_extension

pub unsafe extern "C" fn cmark_find_syntax_extension(
    name: *const c_char
) -> *mut cmark_syntax_extension

This will search for the syntax extension named 'name' among the registered syntax extensions.

It can then be attached to a cmark_parser with the cmark_parser_attach_syntax_extension method.