1 files changed, 62 insertions, 0 deletions
diff --git a/examples/c-to-c.py b/examples/c-to-c.py
new file mode 100644
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--- /dev/null
+++ b/examples/c-to-c.py
@@ -0,0 +1,62 @@
+#------------------------------------------------------------------------------
+# pycparser: c-to-c.py
+#
+# Example of using pycparser.c_generator, serving as a simplistic translator
+# from C to AST and back to C.
+#
+# Eli Bendersky [https://eli.thegreenplace.net/]
+# License: BSD
+#------------------------------------------------------------------------------
+from __future__ import print_function
+import sys
+
+# This is not required if you've installed pycparser into
+# your site-packages/ with setup.py
+#
+sys.path.extend(['.', '..'])
+
+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")