import os def parse_distributions_h(ffi, inc_dir): """ Parse distributions.h located in inc_dir for CFFI, filling in the ffi.cdef Read the function declarations without the "#define ..." macros that will be filled in when loading the library. """ with open(os.path.join(inc_dir, 'random', 'bitgen.h')) as fid: s = [] for line in fid: # massage the include file if line.strip().startswith('#'): continue s.append(line) ffi.cdef('\n'.join(s)) with open(os.path.join(inc_dir, 'random', 'distributions.h')) as fid: s = [] in_skip = 0 ignoring = False for line in fid: # check for and remove extern "C" guards if ignoring: if line.strip().startswith('#endif'): ignoring = False continue if line.strip().startswith('#ifdef __cplusplus'): ignoring = True # massage the include file if line.strip().startswith('#'): continue # skip any inlined function definition # which starts with 'static inline xxx(...) {' # and ends with a closing '}' if line.strip().startswith('static inline'): in_skip += line.count('{') continue elif in_skip > 0: in_skip += line.count('{') in_skip -= line.count('}') continue # replace defines with their value or remove them line = line.replace('DECLDIR', '') line = line.replace('RAND_INT_TYPE', 'int64_t') s.append(line) ffi.cdef('\n'.join(s))