def __validate_command(value: (str, list)):
command, params = value
try:
command = DataProvider.get_service_command(command)
except KeyError:
raise Validator.ValidationError(f"Wrong command name: `{command}`")
if command.get_name() != Semantic.get_symbol(
'var') and command.get_attr_count() != len(params):
raise Validator.ValidationError(
f"Wrong params count: found {len(params)}"
f" instead of {command.get_attr_count()}")
if command.get_name() == Semantic.get_symbol('import'):
Validator.__validate_import(params[0])
Validator.__import_module(params[0])
return
param_types = command.get_param_types()
for idx, param in enumerate(params):
try:
if ModuleManager.module_was_loaded('CORE'):
if CommonValidator.looks_like_variable(param):
raise ValueError
param_types[idx](param)
except ValueError:
if ModuleManager.module_was_loaded('CORE'):
if CommonValidator.looks_like_variable(param):
CommonValidator.check_if_variable_exists(param)
continue
raise Validator.ValidationError(
f"Wrong param type. Param #{idx + 1}: `{param}` "
f"cannot be casted to {param_types[idx]}. ")
except TypeError:
new_params = params[idx + 1:]
Validator.__validate_command((param, new_params))
break
previous_command = DataProvider.peek_command_stack()
if DataProvider.is_closing_command(command.get_name()) and \
not DataProvider.is_pair(previous_command,
command.get_name()):
raise Validator.ValidationError(
f"Wrong command pair: [{previous_command}, {command.get_name()}]."
)
try:
command.get_validation_func()(params)
except TypeError as ignored:
# some commands may have no validation function
pass
def __cut_out_comments(cls, text):
lines = text.split('\n')
for idx, line in enumerate(lines):
try:
comment = line[line.index(Semantic.get_symbol('comment')):]
lines[idx] = line[:line.index(Semantic.get_symbol('comment'))]
if comment:
cls.comments.append((idx, comment))
except ValueError as ignored:
pass
return '\n'.join(lines)
def __run_command(self, command, params):
command = DataProvider.get_service_command(command)
if ModuleManager.module_was_loaded('CORE'):
for idx, param in enumerate(params):
try:
CommonValidator.validate_name_variable(param)
CommonValidator.check_if_variable_exists(param)
variable = param[1:]
params[idx] = DataProvider.get_variable_value(variable)
except Exception:
pass
try:
self.__validator.validate('command', (command.get_name(), params))
except (Validator.ValidationError,
CommonValidator.ValidationError) as exception:
raise Interpreter.RunTimeError(
f'Command: `{command.get_name()}`. ' + str(exception))
param_types = command.get_param_types()
for idx, param in enumerate(params):
if inspect.isclass(param_types[idx]):
params[idx] = param_types[idx](params[idx])
else:
break
try:
self.__validator.validate('command', (command.get_name(), params))
except (Validator.ValidationError,
CommonValidator.ValidationError) as exception:
raise Interpreter.RunTimeError(
f'Command: `{command.get_name()}`. ' + str(exception))
if command.get_name() == Semantic.get_symbol('var'):
new_command, *new_params = params[2:]
self.__run_command(new_command, new_params)
params = params[:2]
params.append(DataProvider.get_returned_value())
DataProvider.return_value(None)
if command.get_name() == Semantic.get_symbol('import'):
return
try:
command.get_exec_func()(*params)
except CommonLogic.RunTimeError as exception:
raise Interpreter.RunTimeError(f'Command: {command.get_name()}. '
f'{str(exception)}')
def check_if_variable_exists(value):
value = value.lstrip('%')
if value == Semantic.get_symbol('return_variable'):
return
if not value in DataProvider.get_variables().keys():
raise CommonValidator.ValidationError(
f"Variable do not exist: `{value}`.")
def __validate_filename(self, value):
if not path.isfile(value):
raise Validator.ValidationError(f"File do not exist. "
f"Check your filepath: `{value}`")
file_extension = value.split('.')[-1]
if file_extension != Semantic.get_extension():
raise Validator.ValidationError(
f"File extension must be '.{Semantic.get_extension()}'.")
def __preprocess_line(self, line, w):
# comments
line = line.split('#')[0]
parts = line.strip().split()
# no action in this string
if len(parts) == 0:
w.write('\n')
return
command, *params = parts
if ModuleManager.module_was_loaded('CORE'):
try:
CommonValidator.check_if_variable_exists(command)
leading_spaces = self.__get_leading_spaces(line)
line = " ".join([
' ' * leading_spaces,
Semantic.get_symbol('var'),
line.lstrip()
])
parts = line.strip().split()
command, *params = parts
except Exception as ignored:
pass
try:
self.__validator.validate('command', (command, params))
except Validator.ValidationError as exception:
raise Preprocessor.ParseException(f"Command: `{command}`. " +
str(exception))
if command == Semantic.get_symbol('var'):
DataProvider.set_variable_value(params[0], None)
elif DataProvider.is_opening_command(command):
DataProvider.append_command_stack(command)
elif DataProvider.is_closing_command(command):
DataProvider.pop_command_stack()
try:
self.__command_to_func[command](line, w)
except KeyError:
w.write(line + '\n')
def validate_var(args):
if len(args) < 3:
# this exception should never be raised
# if command was validated successfully
raise CommonValidator.ValidationError(
f'Var command must have at least 3 args, not {len(args)}.')
CommonValidator.validate_name_variable('%' + args[0])
if args[1] != Semantic.get_symbol('var_separator'):
raise CommonValidator.ValidationError(
f'Wrong var separator: `{args[1]}`. '
f'You should use `{Semantic.get_symbol("var_separator")}`.')
def return_value(value):
DataProvider.set_variable_value(Semantic.get_symbol('return_variable'),
value)
def get_returned_value():
return DataProvider.get_variable_value(
Semantic.get_symbol('return_variable'))
class TextStyler:
comments = []
__just_replace = {'\n': '<br/>', ' ': ' '}
__word_type = {
'command':
sorted(ModuleManager.get_all_commands_names(),
key=lambda x: len(x),
reverse=True),
'operator':
Semantic.get_operators()
}
__type_color = {
'command': 'blue',
'operator': 'red',
'comment': 'grey',
'regular_word': 'black'
}
@classmethod
def plain_2_rich(cls, text):
result = copy.deepcopy(text)
result = cls.__cut_out_comments(result)
for old in cls.__just_replace.keys():
new = cls.__just_replace[old]
result = result.replace(old, new)
for type in cls.__word_type:
for word in cls.__word_type[type]:
result = result.replace(word, cls.__get_colored_word(word))
return cls.__insert_comments(result)
@classmethod
def rich_2_plain(cls, text):
result = copy.deepcopy(text)
result = result.replace('<br />', '<br/>')
for new in cls.__just_replace.keys():
old = cls.__just_replace[new]
result = result.replace(old, new)
x = cls.__clear_code(result)
y = x[36:] + '\n'
return y
@classmethod
def __cut_out_comments(cls, text):
lines = text.split('\n')
for idx, line in enumerate(lines):
try:
comment = line[line.index(Semantic.get_symbol('comment')):]
lines[idx] = line[:line.index(Semantic.get_symbol('comment'))]
if comment:
cls.comments.append((idx, comment))
except ValueError as ignored:
pass
return '\n'.join(lines)
@classmethod
def __insert_comments(cls, text):
lines = text.split('<br/>')
for idx, comment in cls.comments:
lines[idx] += (cls.__get_colored_word(comment,
cls.__type_color['comment']))
cls.comments = []
return '<br/>'.join(lines)
@classmethod
def __get_colored_word(cls, word, color=None):
if color:
return f'<font color=\"{color}\">{word}</font>'
word_type = "regular_word"
for x in cls.__word_type.keys():
if word in cls.__word_type[x]:
word_type = x
color = cls.__type_color[word_type]
return f'<font color=\"{color}\">{word}</font>'
@classmethod
def __clear_code(cls, rich):
text = copy.deepcopy(rich)
while True:
try:
text = text[:text.index('<')] + text[text.index('>') + 1:]
except:
break
return text
def validate_name_variable(value):
value = str(value)
if not bool(re.match(Semantic.get_variable_name_pattern(), value)):
raise CommonValidator.ValidationError(
f"Wrong variable name: {value[1:]}.")