def main(codegen=pythoncg):
args = parse_args()
if args.whitespace:
args.whitespace = eval_escapes(args.whitespace)
outfile = args.outfile
prepare_for_output(outfile)
prepare_for_output(args.object_model_outfile)
grammar = codecs.open(args.filename, encoding='utf-8').read()
try:
model = compile(grammar,
args.name,
trace=args.trace,
filename=args.filename,
colorize=args.color)
model.whitespace = args.whitespace
model.nameguard = args.nameguard
model.left_recursion = args.left_recursion
if args.draw:
from tatsu import diagrams
diagrams.draw(outfile, model)
else:
if args.pretty:
result = model.pretty()
elif args.pretty_lean:
result = model.pretty_lean()
elif args.object_model:
result = objectmodel.codegen(model, base_type=args.base_type)
else:
result = codegen(model)
if outfile:
save(outfile, result)
else:
print(result)
# if requested, always save it
if args.object_model_outfile:
save(args.object_model_outfile,
objectmodel.codegen(model, base_type=args.base_type))
print('-' * 72, file=sys.stderr)
print('{:12,d} lines in grammar'.format(len(grammar.split())),
file=sys.stderr)
print('{:12,d} rules in grammar'.format(len(model.rules)),
file=sys.stderr) # noqa
print('{:12,d} nodes in AST'.format(model.nodecount()),
file=sys.stderr)
except ParseException as e:
print(e, file=sys.stderr)
sys.exit(1)
def main(codegen=pythoncg):
args = parse_args()
if args.whitespace:
args.whitespace = eval_escapes(args.whitespace)
outfile = args.outfile
prepare_for_output(outfile)
prepare_for_output(args.object_model_outfile)
grammar = codecs.open(args.filename, 'r', encoding='utf-8').read()
try:
model = compile(
grammar,
args.name,
trace=args.trace,
filename=args.filename,
colorize=args.color
)
model.whitespace = args.whitespace
model.nameguard = args.nameguard
model.left_recursion = args.left_recursion
if args.draw:
from tatsu import diagrams
diagrams.draw(outfile, model)
else:
if args.pretty:
result = model.pretty()
elif args.pretty_lean:
result = model.pretty_lean()
elif args.object_model:
result = objectmodel.codegen(model)
else:
result = codegen(model)
if outfile:
save(outfile, result)
else:
print(result)
# if requested, always save it
if args.object_model_outfile:
save(args.object_model_outfile, objectmodel.codegen(model))
print('-' * 72, file=sys.stderr)
print('{:12,d} lines in grammar'.format(len(grammar.split())), file=sys.stderr)
print('{:12,d} rules in grammar'.format(len(model.rules)), file=sys.stderr) # noqa
print('{:12,d} nodes in AST'.format(model.nodecount()), file=sys.stderr)
except ParseException as e:
print(e, file=sys.stderr)
sys.exit(1)
def to_python_model(grammar,
name=None,
filename=None,
base_type=None,
**kwargs):
model = compile(grammar, name=name, filename=filename, **kwargs)
return objectmodel.codegen(model, base_type=base_type)
def to_python_model(grammar,
name=None,
filename=None,
base_type=None,
config: ParserConfig = None,
**settings):
model = compile(grammar,
name=name,
filename=filename,
config=config,
**settings)
return objectmodel.codegen(model, base_type=base_type)
def to_python_model(grammar, name=None, filename=None, **kwargs):
model = compile(grammar, name=name, filename=filename, **kwargs)
return objectmodel.codegen(model)