def hy2py_main():
options = dict(prog="hy2py",
usage="%(prog)s [options] [FILE]",
formatter_class=argparse.RawDescriptionHelpFormatter)
parser = argparse.ArgumentParser(**options)
parser.add_argument("FILE",
type=str,
nargs='?',
help="Input Hy code (use STDIN if \"-\" or "
"not provided)")
parser.add_argument("--with-source",
"-s",
action="store_true",
help="Show the parsed source structure")
parser.add_argument("--with-ast",
"-a",
action="store_true",
help="Show the generated AST")
parser.add_argument("--without-python",
"-np",
action="store_true",
help=("Do not show the Python code generated "
"from the AST"))
options = parser.parse_args(sys.argv[1:])
if options.FILE is None or options.FILE == '-':
sys.path.insert(0, "")
filename = '<stdin>'
source = sys.stdin.read()
else:
filename = options.FILE
set_path(filename)
with io.open(options.FILE, 'r', encoding='utf-8') as source_file:
source = source_file.read()
with filtered_hy_exceptions():
hst = hy_parse(source, filename=filename)
if options.with_source:
_print_for_windows(hst)
print()
print()
with filtered_hy_exceptions():
_ast = hy_compile(hst, '__main__', filename=filename, source=source)
if options.with_ast:
_print_for_windows(ast.dump(_ast))
print()
print()
if not options.without_python:
_print_for_windows(ast_unparse(_ast))
parser.exit(0)
def ast_callback(self, exec_ast, eval_ast):
if self.spy:
try:
# Mush the two AST chunks into a single module for
# conversion into Python.
new_ast = ast.Module(
exec_ast.body + ([] if eval_ast is None else [ast.Expr(eval_ast.body)]),
type_ignores=[])
print(ast_unparse(new_ast))
except Exception:
msg = 'Exception in AST callback:\n{}\n'.format(
traceback.format_exc())
self.write(msg)