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#------------------------------------------------------------------------------
# pycparser: c-to-c.py
#
# Example of using pycparser.c_generator, serving as a simplistic translator
# from C to AST and back to C.
#
# Copyright (C) 2008-2015, Eli Bendersky
# License: BSD
#------------------------------------------------------------------------------
from __future__ import print_function
import sys
from pycparser import parse_file, c_parser, c_generator
def translate_to_c(filename):
""" Simply use the c_generator module to emit a parsed AST.
"""
ast = parse_file(filename, use_cpp=True)
generator = c_generator.CGenerator()
print(generator.visit(ast))
def _zz_test_translate():
# internal use
src = r'''
void f(char * restrict joe){}
int main(void)
{
unsigned int long k = 4;
int p = - - k;
return 0;
}
'''
parser = c_parser.CParser()
ast = parser.parse(src)
ast.show()
generator = c_generator.CGenerator()
print(generator.visit(ast))
# tracing the generator for debugging
#~ import trace
#~ tr = trace.Trace(countcallers=1)
#~ tr.runfunc(generator.visit, ast)
#~ tr.results().write_results()
#------------------------------------------------------------------------------
if __name__ == "__main__":
#_zz_test_translate()
if len(sys.argv) > 1:
translate_to_c(sys.argv[1])
else:
print("Please provide a filename as argument")