CyHeadGen is a project aimed at simplifying the process of converting C header files into Cython files.
It uses a lexer and a parser based on the Lex/Yacc python implementation with ply.
cyheadgen exposes the C header lexing and parsing APIs with wrapper classes
The lexer returns LexToken which are the token produced by the ply parser, but it's pretty easy to access
the symbol corresponding to the token.
from cyheadgen import CyHeadGenLexer
lexer = CyHeadGenLexer()
my_func = "int super_func(int arg1, int *arg2);"
print([tok.value for tok in lexer(my_func)]) # ['int', 'super_func', '(', 'int', 'arg1', ',', 'int', '*', 'arg2', ')', ';']The parser returns the Node associated with the parsing, all abstraction are easily tweakable and their behaviour can be change at will.
from cyheadgen import CyHeadGenParser
parser = CyHeadGenParser()
my_func = "int super_func(int arg1, int *arg2);"
print(parser(my_func)) # [Function(name='super_func', type='int', parameters=[Argument(name='arg1', type='int', value=None), Argument(name='arg2', type='int*', value=None)])]The Generator is built on the two previous structures, and supports generating cython headers from an input string or from a header file.
from cyheadgen import CythonHeaderGenerator
cygen = CythonHeaderGenerator()
my_func = "int super_func(int arg1, int *arg2);"
print(cygen(my_func, header_name="toto.h")) # "int super_func(int arg1, int *arg2)"
print(cygen.generate_from_file(filepath="./toto.h"))