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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")
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