def parse_mandatory_option(self, option_name_2_parser: dict):
"""
A variant of parse_optional_command ,where the command is mandatory.
:raises `SingleInstructionInvalidArgumentException': The command is not found
"""
def expecting_an_option() -> str:
options = option_name_2_parser.keys()
options_str = '|'.join(map(option_syntax, options))
return 'Expecting : {}{}\nFound : {}'.format(
'' if len(options) <= 1 else 'one of ', options_str,
self.remaining_part_of_current_line)
if self.token_stream.is_null:
raise SingleInstructionInvalidArgumentException(
expecting_an_option())
elif self._lookahead_token_has_invalid_syntax():
self.require_head_token_has_valid_syntax(expecting_an_option())
key_and_option_name_list = [
(option_name, option_name)
for option_name in option_name_2_parser.keys()
]
def key_handler(x):
return x
actual_option = self.consume_and_handle_first_matching_option(
None, key_handler, key_and_option_name_list)
if actual_option is None:
raise SingleInstructionInvalidArgumentException(
expecting_an_option())
else:
return option_name_2_parser[actual_option](self)
def _raise_invalid_argument_exception_if_symbol_does_not_have_valid_syntax(
symbol_name_token: Token, option_str: str):
symbol_name = symbol_name_token.source_string
if symbol_name_token.is_quoted:
msg = 'Symbol name argument for {} must not be quoted: {}'.format(
option_str, symbol_name)
raise SingleInstructionInvalidArgumentException(msg)
if not symbol_syntax.is_symbol_name(symbol_name_token.source_string):
msg = 'Invalid name of {symbol_concept}: {invalid_value}'.format(
symbol_concept=SYMBOL_CONCEPT_INFO.name.singular,
invalid_value=symbol_name_token.source_string,
)
raise SingleInstructionInvalidArgumentException(msg)
def extract_single_eq_argument_string(syntax_element: str,
rest_of_line: str) -> str:
arguments = rest_of_line.strip().split(maxsplit=1)
if not arguments:
raise SingleInstructionInvalidArgumentException(
_missing(instruction_arguments.ASSIGNMENT_OPERATOR))
if arguments[0] != instruction_arguments.ASSIGNMENT_OPERATOR:
raise SingleInstructionInvalidArgumentException(
expected_found.unexpected_lines_str(
instruction_arguments.ASSIGNMENT_OPERATOR, arguments[0]))
if len(arguments) != 2:
raise SingleInstructionInvalidArgumentException(
_missing(syntax_element))
return arguments[1]
def extract_mandatory_arguments_after_eq(syntax_element: str,
rest_of_line: str) -> List[str]:
arguments = split_arguments_list_string(rest_of_line)
if not arguments:
raise SingleInstructionInvalidArgumentException(
_missing(instruction_arguments.ASSIGNMENT_OPERATOR))
if arguments[0] != instruction_arguments.ASSIGNMENT_OPERATOR:
raise SingleInstructionInvalidArgumentException(
expected_found.unexpected_lines_str(
instruction_arguments.ASSIGNMENT_OPERATOR, arguments[0]))
del arguments[0]
if not arguments:
raise SingleInstructionInvalidArgumentException(
_missing(syntax_element))
return arguments
def ensure_is_not_option_argument(argument: str):
"""
:raises SingleInstructionInvalidArgumentException: The arguments is an option argument.
"""
if is_option_argument(argument):
raise SingleInstructionInvalidArgumentException(
'An option argument was not expected here: {}'.format(argument))
def parse_primitive(self, primitive_name: str) -> EXPR:
symbol_name_of_symbol_reference = symbol_syntax.parse_symbol_reference__from_str(primitive_name)
if symbol_name_of_symbol_reference is not None:
return self.grammar.mk_reference(symbol_name_of_symbol_reference)
if primitive_name in self.grammar.primitives:
return self.grammar.primitives[primitive_name].parse_arguments(self.parser)
elif not symbol_syntax.is_symbol_name(primitive_name):
err_msg = self._err_msg_renderer.unknown_primitive(primitive_name)
raise SingleInstructionInvalidArgumentException(err_msg)
elif primitive_name in self.grammar.custom_reserved_words:
err_msg = self._err_msg_renderer.plain_symbol_name_is_reserved_word(primitive_name)
raise SingleInstructionInvalidArgumentException(err_msg)
else:
return self.grammar.mk_reference(primitive_name)
def consume_mandatory_unquoted_string(
self,
syntax_element_name: str,
must_be_on_current_line: bool,
error_message: Optional[ErrorMessageGenerator] = None,
) -> str:
"""
Consumes the first token that must be an unquoted string.
:type must_be_on_current_line: Tells if the string must be found on the current line.
:return: The unquoted string
:raises :class:`SingleInstructionInvalidArgumentException' The parser is at end of file,
or if the must_be_on_current_line is True but the current line is empty,
or if the parsed token is not an unquoted string.
"""
if self.token_stream.is_null:
return self.error('Expecting ' + syntax_element_name)
if self._lookahead_token_has_invalid_syntax():
return self.error('Invalid syntax of ' + syntax_element_name)
if self.is_at_eol and must_be_on_current_line:
return self.error('Expecting ' + syntax_element_name)
head = self.token_stream.head
if head.is_quoted:
err_msg = 'Expecting unquoted {}.\nFound: `{}\''.format(
syntax_element_name, head.source_string)
raise SingleInstructionInvalidArgumentException(err_msg)
self.token_stream.consume()
return head.string
def _resolve_relativity_option_type(option_argument: str) -> RelOptionType:
for option_type in rel_opts.REL_OPTIONS_MAP:
option_name = rel_opts.REL_OPTIONS_MAP[option_type]._option_name
if option_parsing.matches(option_name, option_argument):
return option_type
raise SingleInstructionInvalidArgumentException(
'Invalid option: {}'.format(option_argument))
def parse_token_or_none_on_current_line(source: ParseSource,
argument_description: str = 'argument'
) -> Token:
"""
Parses a single, optional token from remaining part of current line.
Tokens must be separated by space.
:param source: Must have a current line. Initial space is consumed. Text for token is consumed.
:raise SingleInstructionInvalidArgumentException: The token has invalid syntax
"""
source.consume_initial_space_on_current_line()
if source.is_at_eol:
return None
part_of_current_line = source.remaining_part_of_current_line
source_io = io.StringIO(part_of_current_line)
lexer = shlex.shlex(source_io, posix=True)
lexer.whitespace_split = True
token_type = _derive_token_type(lexer,
source.remaining_part_of_current_line[0])
try:
token_string = lexer.get_token()
except ValueError as ex:
msg = 'Invalid {}: {}'.format(argument_description, str(ex))
raise SingleInstructionInvalidArgumentException(msg)
source_string = _get_source_string_and_consume_token_characters(
source, source_io)
return Token(token_type, token_string, source_string)
def _raise_invalid_option(actual: str, options: RelOptionsConfiguration):
lines = [
'Illegal relativity option : {}'.format(actual),
'Legal relativity options :'
]
lines.extend(_valid_options_info_lines(options))
msg = '\n'.join(lines)
raise SingleInstructionInvalidArgumentException(msg)
def parse_fragments_from_tokens__w_is_plain(
tokens: TokenStream,
conf: Configuration = DEFAULT_CONFIGURATION) -> Tuple[bool, List[symbol_syntax.Fragment]]:
"""
Consumes a single token.
:raises SingleInstructionInvalidArgumentException: Missing argument
"""
if tokens.is_null:
raise SingleInstructionInvalidArgumentException('Expecting {} argument'.format(conf.argument_name))
string_token = tokens.consume()
if string_token.is_plain and string_token.source_string in reserved_words.RESERVED_TOKENS:
raise SingleInstructionInvalidArgumentException(
'Illegal {}: {}'.format(conf.argument_name,
string_token.source_string),
)
return string_token.is_plain, parse_fragments_from_token(string_token)
def parse_from_token_parser(self, parser: TokenParser) -> int:
parser.require_has_valid_head_token('INTEGER')
int_token = parser.consume_mandatory_token('err msg format string')
try:
return int(int_token.string)
except ValueError:
raise SingleInstructionInvalidArgumentException('Not an int: ' +
int_token.string)
def _parse_reference_arguments(rest_of_line: str) -> List[SymbolReference]:
parts = rest_of_line.split()
if len(parts) != 2:
raise SingleInstructionInvalidArgumentException(
'Usage TYPE NAME. Found: ' + rest_of_line)
type_ident = parts[0]
name = parts[1]
try:
reference = SymbolReference(
name,
ValueTypeRestriction.of_single(
TYPE_IDENT_2_VALUE_TYPE[type_ident]))
return [reference]
except KeyError:
raise SingleInstructionInvalidArgumentException('Not a symbol type: ' +
type_ident)
def _parse(self, rest_of_line: str) -> ConfigurationSectionInstruction:
py_source_file_name = rest_of_line.strip()
if not py_source_file_name or py_source_file_name.isspace():
raise SingleInstructionInvalidArgumentException(
'Missing python source file argument')
return Instruction(py_source_file_name)
def split_arguments_list_string(arguments: str) -> List[str]:
"""
:raises SingleInstructionInvalidArgumentException: The arguments string cannot be parsed.
"""
try:
return shlex.split(arguments)
except ValueError as ex:
raise SingleInstructionInvalidArgumentException(
'Invalid quoting of arguments: ' + str(ex))
def parse(self,
fs_location_info: FileSystemLocationInfo,
source: ParseSource) -> ConfigurationPhaseInstruction:
rest_of_line = source.remaining_part_of_current_line
source.consume_current_line()
argument = extract_single_eq_argument_string(_DIR_ARG.name, rest_of_line)
path_arguments = split_arguments_list_string(argument)
if len(path_arguments) > 1:
raise SingleInstructionInvalidArgumentException('Too many arguments: ' + argument)
try:
path_argument = pathlib.Path(pathlib.PurePosixPath(path_arguments[0]))
except ValueError as ex:
raise SingleInstructionInvalidArgumentException('Invalid path syntax:\n' + str(ex))
return _Instruction(self.dir_to_set,
fs_location_info.current_source_file.abs_path_of_dir_containing_last_file_base_name,
path_argument)
def _symbol_string(self, parser: TokenParser) -> str:
symbol_string = parser.consume_mandatory_unquoted_string(
instruction_arguments.SYMBOL_SYNTAX_ELEMENT_NAME, True)
if not symbol_syntax.is_symbol_name(symbol_string):
raise SingleInstructionInvalidArgumentException(
'Invalid syntax of ' +
instruction_arguments.SYMBOL_SYNTAX_ELEMENT_NAME + ': ' +
symbol_string)
return symbol_string
def consume_mandatory_keyword(
self,
keyword: str,
must_be_on_current_line: bool,
):
actual_string = self.consume_mandatory_unquoted_string(
'keyword ' + keyword, must_be_on_current_line)
if actual_string != keyword:
raise SingleInstructionInvalidArgumentException(
expected_found.unexpected_lines_str(keyword, actual_string))
def _with_non_empty_token_stream(
self, tokens: TokenStream) -> Either[SymbolName, PathSdv]:
initial_argument_string = tokens.remaining_part_of_current_line
relativity_info = parse_explicit_relativity_info(
self.conf.rel_opt_conf.options, self.conf.source_file_location,
tokens)
if not self.conf.rel_opt_conf.path_suffix_is_required and tokens.remaining_part_of_current_line_is_empty:
if relativity_info is None:
return self._result_from_no_arguments()
else:
path_part_sdv2_path_sdv = self._path_constructor(
relativity_info)
return Either.of_right(
path_part_sdv2_path_sdv(path_part_sdvs.empty()))
if tokens.look_ahead_state is LookAheadState.SYNTAX_ERROR:
raise SingleInstructionInvalidArgumentException(
std_error_message_text_for_token_syntax_error(
tokens.head_syntax_error_description))
elif tokens.look_ahead_state is LookAheadState.NULL:
raise SingleInstructionInvalidArgumentException(
'Missing {}: {}'.format(
self.conf.rel_opt_conf.argument_syntax_name,
initial_argument_string))
head_token = tokens.head
if reserved_tokens.IS_RESERVED_WORD.matches(head_token):
raise SingleInstructionInvalidArgumentException(
'Illegal file name: {}'.format(head_token.string))
elif head_token.type is TokenType.PLAIN:
ensure_is_not_option_argument(head_token.source_string)
tokens.consume()
if relativity_info is None:
return self._without_explicit_relativity(head_token)
else:
path_part_2_path_sdv = self._path_constructor(relativity_info)
return Either.of_right(
self._with_explicit_relativity(head_token,
path_part_2_path_sdv))
def new_token_stream(source: str) -> TokenStream:
"""
Constructs a :class:`TokenStream`
:rtype: :class:`TokenStream`
:raises :class:`SingleInstructionInvalidArgumentException` Invalid syntax
"""
try:
return TokenStream(source)
except TokenSyntaxError as ex:
raise SingleInstructionInvalidArgumentException(
std_error_message_text_for_token_syntax_error_from_exception(ex))
def _parse_from_tokens(self, token_parser: TokenParser) -> InstructionEmbryo[None]:
try:
phases = self._parse_phases(token_parser)
modifier = self._parse_modifier(token_parser)
token_parser.report_superfluous_arguments_if_not_at_eol()
return _impl.TheInstructionEmbryo(phases, modifier)
except TokenSyntaxError as ex:
raise SingleInstructionInvalidArgumentException(
std_error_message_text_for_token_syntax_error_from_exception(ex))
def consume_mandatory_keyword__part_of_syntax_element(
self,
keyword: str,
must_be_on_current_line: bool,
syntax_element_name: str,
):
actual_string = self.consume_mandatory_unquoted_string(
syntax_element_name, must_be_on_current_line)
if actual_string != keyword:
raise SingleInstructionInvalidArgumentException(
expected_found.unexpected_lines_str__part_of_syntax_element(
syntax_element_name, keyword, actual_string))
def _parse(self, rest_of_line: str) -> ConfigurationSectionInstruction:
arguments = shlex.split(rest_of_line)
if len(arguments) != 2:
raise SingleInstructionInvalidArgumentException(
'Invalid syntax: expected: FROM TO')
def set_preprocessor(conf: ConfigurationSectionEnvironment):
preproc = SearchReplacePreprocessor(arguments[0], arguments[1])
conf.preprocessor = preproc
return configuration_section_instruction_that(set_preprocessor)
def _parse(self, rest_of_line: str) -> ConfigurationPhaseInstruction:
status_element_arg = extract_single_eq_argument_string(
_ARG_NAME, rest_of_line)
argument = status_element_arg.upper()
try:
target = NAME_2_STATUS[argument]
except KeyError:
raise SingleInstructionInvalidArgumentException(
'Invalid {status}: `{actual}`'.format(
status=conf_params.TEST_CASE_STATUS_CONF_PARAM_INFO.
configuration_parameter_name,
actual=status_element_arg))
return _Instruction(target)
def _parse_from_tokens(
self, token_parser: TokenParser) -> InstructionEmbryo[None]:
try:
token_parser.consume_mandatory_keyword(defs.ASSIGNMENT_IDENTIFIER,
False)
value = self._parse_value(token_parser)
token_parser.report_superfluous_arguments_if_not_at_eol()
return _impl.TheInstructionEmbryo(value)
except TokenSyntaxError as ex:
raise SingleInstructionInvalidArgumentException(
std_error_message_text_for_token_syntax_error_from_exception(
ex))
def _with_optional_suffix(
self, tokens: TokenStream) -> Either[SymbolName, PathSdv]:
"""
:param tokens: Argument list
:raises SingleInstructionInvalidArgumentException: Invalid arguments
"""
if tokens.look_ahead_state is LookAheadState.SYNTAX_ERROR:
raise SingleInstructionInvalidArgumentException(
std_error_message_text_for_token_syntax_error(
tokens.head_syntax_error_description))
if tokens.is_null or tokens.remaining_part_of_current_line_is_empty:
return self._result_from_no_arguments()
return self._with_non_empty_token_stream(tokens)
def parse_mb_sym_ref(self,
tokens: TokenStream) -> Either[SymbolName, PathSdv]:
"""
:param tokens: Argument list
:raises SingleInstructionInvalidArgumentException: Invalid arguments
"""
try:
if self.conf.rel_opt_conf.path_suffix_is_required:
return self._with_required_suffix(tokens)
else:
return self._with_optional_suffix(tokens)
except TokenSyntaxError as ex:
raise SingleInstructionInvalidArgumentException(
std_error_message_text_for_token_syntax_error_from_exception(
ex))
def parse_plain_token_on_current_line(source: ParseSource,
argument_description: str = 'argument'
) -> Token:
"""
Parses a single, mandatory plain (unquoted) token from remaining part of current line.
Tokens must be separated by space.
:param source: Must have a current line. Initial space is consumed. Text for token is consumed.
:raise SingleInstructionInvalidArgumentException: There is no token
:raise SingleInstructionInvalidArgumentException: The token has invalid syntax
"""
token = parse_token_on_current_line(source, argument_description)
if token.type is TokenType.QUOTED:
raise SingleInstructionInvalidArgumentException(
'Argument must not be quoted: ' + token.source_string)
return token
def parse_token_on_current_line(source: ParseSource,
argument_description: str = 'argument'
) -> Token:
"""
Parses a single, mandatory token from remaining part of current line.
Tokens must be separated by space.
:param source: Must have a current line. Initial space is consumed. Text for token is consumed.
:raise SingleInstructionInvalidArgumentException: There is no token
:raise SingleInstructionInvalidArgumentException: The token has invalid syntax
"""
token = parse_token_or_none_on_current_line(source, argument_description)
if token is None:
raise SingleInstructionInvalidArgumentException('Missing ' +
argument_description)
return token
def _try_parse_rel_symbol_option(
options: RelOptionsConfiguration,
source: TokenStream) -> Optional[SymbolReference]:
option_str = source.head.string
if not option_parsing.matches(REL_SYMBOL_OPTION_NAME, option_str):
return None
source.consume()
if source.is_null:
msg = 'Missing symbol name argument for {} option'.format(option_str)
raise SingleInstructionInvalidArgumentException(msg)
_raise_invalid_argument_exception_if_symbol_does_not_have_valid_syntax(
source.head, option_str)
symbol_name = source.consume().string
return SymbolReference(
symbol_name,
reference_restrictions_for_path_symbol(
options.accepted_relativity_variants))
