def parse_recipe(f):
consumed_comments = False
title = f.readline().rstrip()
validate_title(title)
if f.readline() != "\n":
raise syntax_errors.MissingEmptyLineError(2)
lineno = 2
parsed_ingredients = parsed_cooking_time = parsed_oven_temperature = False
# set some default values for recipe elements
ingredients = Ingredients()
cooking_time = oven_temperature = serves = undefined
while True:
cur_par, cur_line = update_current_par_and_line(f)
lineno += 1
if cur_line == "Ingredients.":
headline, ingredient_list = cur_par.split("\n", 1)
ingredients, lineno = parse_ingredient_list(ingredient_list, lineno)
parsed_ingredients = True
elif is_cooking_time(cur_line):
cooking_time = parse_cooking_time(cur_line, lineno)
parsed_cooking_time = True
elif is_oven_temperature(cur_line):
oven_temperature = parse_oven_temperature(cur_line, lineno)
parsed_oven_temperature = True
elif cur_line == "Method.":
if parsed_ingredients:
lineno += 1
if parsed_cooking_time:
lineno += 1
if parsed_oven_temperature:
lineno += 1
parsed_instructions, lineno = parse_method(cur_par, lineno)
serves, lineno = parse_serves_if_possible(f, lineno)
break
else:
if consumed_comments:
raise syntax_errors.ChefSyntaxError("missing syntax element: method", lineno)
else:
lineno += cur_par.count("\n")
consumed_comments = True
# make sure the whole file content is exhausted
rest = f.read()
assert rest == ""
return Recipe(ingredients, cooking_time, oven_temperature, parsed_instructions, serves)
def test_dotless(self):
with pytest.raises(syntax_errors.MissingTrailingFullStopError) as e:
validate_title('A title without a dot\n')
assert e.value.lineno == 1
def test_missing(self):
with pytest.raises(syntax_errors.MissingTitleError):
validate_title('')
