def parse_two_points(cli_input: str) -> ParseResult:
"""
Parse two Points from given input.
"""
point_result1 = PointParser().parse_point(cli_input)
if point_result1.is_successful():
point_result2 = PointParser().parse_point(
point_result1.get_remainder())
if point_result2.is_successful():
return Success(
[point_result1.get_match(),
point_result2.get_match()], point_result2.get_remainder())
return Failure("<POINT> <POINT>", cli_input)
def parse_params(self, cli_input: str) -> ParseResult:
point_result = PointParser().parse_point(cli_input)
if point_result.is_successful():
abs_point = self.convert_points([point_result.get_match()])
point_x = abs_point[0].x
point_y = abs_point[0].y
# Parse color
color_result = self.parse_color(point_result.get_remainder(),
self.color_parser)
if color_result.is_successful():
color = color_result.get_match()
return Success(
PrintDotCommand(self._controller, point_x, point_y, color),
'')
else:
return Failure(color_result.get_expected(),
point_result.get_remainder())
return Failure("dot <POINT>", cli_input)
def parse_params(self, cli_input: str) -> ParseResult:
result = PointParser().parse_point(cli_input)
if result.is_successful():
abs_point = self.convert_points([result.get_match()])
x = abs_point[0].x
y = abs_point[0].y
return Success(RemoveShapeCommand(self._controller, x, y),
result.get_remainder())
else:
return result
def parse_point_and_nat(self, cli_input: str) -> ParseResult:
"""
Parse a Point and a Natural number from given input.
"""
point_result = PointParser().parse_point(cli_input)
if point_result.is_successful():
radius_result = self.radius_parser.parse_input(
point_result.get_remainder())
if radius_result.is_successful():
return Success(
[point_result.get_match(),
radius_result.get_match()], radius_result.get_remainder())
return Failure("circle <POINT> <NAT>", cli_input)
def parse_params(self, cli_input: str) -> ParseResult:
points_result = self.parse_two_points(cli_input)
if points_result.is_successful():
points = points_result.get_match()
# two points parsed successfully, try to parse a color
remainder = points_result.get_remainder()
color_result = self.parse_color(remainder, self.color_parser)
if color_result.is_successful():
# color parsed successfully, no more points will be parsed
color = color_result.get_match()
abs_points = self.convert_points(points_result.get_match())
start_x = abs_points[0].x
start_y = abs_points[0].y
end_x = abs_points[1].x
end_y = abs_points[1].y
return Success(
PrintLineCommand(self._controller, start_x, start_y, end_x,
end_y, color), '')
else:
# try to parse a point or a color
while True:
point_result = PointParser().parse_point(remainder)
if point_result.is_successful():
points.append(point_result.get_match())
remainder = point_result.get_remainder()
else:
color_result = self.parse_color(
remainder, self.color_parser)
if color_result.is_successful():
# color parsed successfully, no more points will be parsed
color = color_result.get_match()
abs_points = self.convert_points(points)
return Success(
PrintPolylineCommand(self._controller,
[(p.x, p.y)
for p in abs_points],
color),
color_result.get_remainder())
else:
break
return Failure("line <POINT> <POINTS>", cli_input)
def parse_point_and_nats(self, cli_input: str) -> ParseResult:
"""
Parse a Point and two Natural numbers from given input.
"""
point_result = PointParser().parse_point(cli_input)
if point_result.is_successful():
width_result = self.width_parser.parse_input(
point_result.get_remainder())
if width_result.is_successful():
height_result = self.height_parser.parse_input(
width_result.get_remainder())
if height_result.is_successful():
return Success([
point_result.get_match(),
width_result.get_match(),
height_result.get_match()
], height_result.get_remainder())
return Failure("rect <POINT> <NAT> <NAT>", cli_input)