def is_formal_parameter_section(cls, tk_list: list) -> dict:
i = 1 if tk_list[0] == "<KEYWORD_VAR>" else 0
if (len(tk_list) > 2 and tk_list[i] == "<IDENTIFIER_LIST>"
and tk_list[-2] == "<COLON>"
and tk_list[-1] == "<SIMPLE_TYPE>"):
return Token_("", "<FORMAL_PARAMETERS_SECTION>", None)
return Token_("", None, None)
def is_formal_parameters(tk_list, i):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
if tk_list[i][1] == "<OPEN_PARENTHESIS>":
res, e = Analyzers2.is_formal_parameter_section(tk_list, i + 1)
if res.token == "<FORMAL_PARAMETER_SECTION>":
i = res.col[1]
while i < len(tk_list) and i + 1 < len(tk_list):
res, e = Analyzers2.is_formal_parameter_section(tk_list, i + 1)
if (
tk_list[i][1] == "<COMMAND_END>"
and res.token == "<FORMAL_PARAMETERS>"
):
i += res.col[1] + 2
else:
break
if tk_list[i][1] == "<CLOSE_PARENTHESIS>":
return (
Token_(tk_list[initial:i], "<FORMAL_PARAMETERS>", (initial, i)),
errors,
)
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_procedure_call(tk_list: list, i: int):
initial = i
errors = []
l = len(tk_list)
tk_atual = Convert(tk_list, i)
if i < l and tk_list[i][1] == "<IDENTIFIER>":
procedure = tk_list[i][1]
i += 1
res, e = Analyzers2.is_expression_list(tk_list, i + 1)
if (
tk_list[i][1] == "<OPEN_PARENTHESIS>"
and res.token == "<EXPRESSION_LIST>"
and tk_list[res.col[1] + 1][1] == "<CLOSE_PARENTHESIS>"
):
parameters = res.lexem
print(parameters)
i += res.col[1] + 1
Analyzers2.semantic_analyzer.validate_procedure_call(
procedure, parameters
)
return (
Token_(tk_list[initial:i], "<PROCEDURE_CALL>", (initial, i + 1)),
errors,
)
return Token_(tk_list[initial:i], "<ERROR>", (initial, i + 1)), errors
def is_simple_expression(tk_list: list, i: int):
initial = i
errors = []
l = len(tk_list)
tk_atual = Convert(tk_list, i)
has_sign = False
if i < l and (
tk_list[i][1] == "<PLUS_SIGN>" or tk_list[i][1] == "<MINUS_SIGN>"
):
has_sign = True
res, e = Analyzers2.is_therm(tk_list, i + 1 if has_sign else i)
if res.token == "<THERM>":
i = res.col[1]
errors.extend(e)
while i + 1 < len(tk_list):
res, e = Analyzers2.is_therm(tk_list, i + 1)
if (
tk_list[i][1] == "<PLUS_SIGN>"
or tk_list[i][1] == "<MINUS_SIGN>"
or tk_list[i][1] == "<KEYWORD_OR>"
) and res.token == "<THERM>":
i = res.col[1]
errors.extend(e)
else:
break
return (
Token_(tk_list[initial:i], "<SIMPLE_EXPRESSION>", (initial, i)),
errors,
)
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_simple_expression(cls, tk_list: list) -> Token_:
len_tk_list = len(tk_list)
if len_tk_list >= 1 and tk_list[0] in [
"<THERM>",
"<PLUS_SIGN>",
"<MINUS_SIGN>",
]:
i = 1
if tk_list[0] != "<THERM>":
i += 1
if tk_list[1] != "<THERM>":
return Token_("", None, None)
checked = True
while True:
if i < len_tk_list:
if not (tk_list[i]
in ["<PLUS_SIGN>", "<MINUS_SIGN>", "<KEYWORD_OR>"]
and (i + 1 < len_tk_list
and tk_list[i + 1] == "<THERM>")):
checked = False
break
else:
break
i += 2
if checked:
return Token_(tk_list, "<SIMPLE_EXPRESSION>", None)
return Token_("", None, None)
def is_therm(tk_list: list, i: int):
initial = i
errors = []
l = len(tk_list)
tk_atual = Convert(tk_list, i)
res, e = Analyzers2.is_factor(tk_list, i)
if res.token == "<FACTOR>":
i = res.col[1]
errors.extend(e)
while i + 1 < len(tk_list):
res, e = Analyzers2.is_factor(tk_list, i + 1)
if (
i < l
and tk_list[i][1]
in ["<MULTIPLICATION_SIGN>", "<DIVISION_SIGN>", "<KEYWORD_AND>"]
and res.token == "<FACTOR>"
):
i = res.col[1]
errors.extend(e)
else:
break
return Token_(tk_list[initial:i], "<THERM>", (initial, i)), errors
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_subroutine_declaration_part(tk_list: list, i: int):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
res, e = Analyzers2.is_procedure_declaration(tk_list, i)
if (
res.col[1] + 1 < len(tk_list)
and tk_list[res.col[1] + 1][1] == "<COMMAND_END>"
and res.token == "<PROCEDURE_DECLARATION>"
):
i = res.col[1] + 2
while i + 1 < len(tk_list):
res, e = Analyzers2.is_procedure_declaration(tk_list, i)
if (
tk_list[i + 1][1] == "<COMMAND_END>"
and res.token == "<PROCEDURE_DECLARATION>"
):
i += res.col[1] + 2
else:
break
return (
Token_(
tk_list[initial:i], "<SUBROUTINE_DECLARATION_PART>", (initial, i)
),
errors,
)
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_program(cls, tk_list: list) -> Token_:
if (len(tk_list) == 5 and tk_list[0] == "<KEYWORD_PROGRAM>"
and tk_list[1] == "<IDENTIFIER>"
and tk_list[2] == "<COMMAND_END>" and tk_list[3] == "<BLOC>"
and tk_list[4] == "<DOT>"):
return Token_("", "<PROGRAM>", None)
return Token_("", None, None)
def is_formal_parameter_section(tk_list, i):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
if tk_list[i][1] == "<KEYWORD_VAR>":
res, e = Analyzers2.is_identifier_list(tk_list, i + 1)
if res.token == "<IDENTIFIER_LIST>":
value = res.lexem
i = res.col[1]
if tk_list[i][1] == "<COLON>":
i += 1
if tk_list[i][1] == "<SIMPLE_TYPE>":
simple_type = tk_list[i][0]
i += 1
Analyzers2.semantic_analyzer.insert_parameters(
value=value, variable_type=simple_type
)
return (
Token_(
tk_list[initial:i],
"<FORMAL_PARAMETER_SECTION>",
(initial, i),
),
errors,
)
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_variable_declaration_part(tk_list: list, i: int):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
errors = []
first, e = Analyzers2.is_variable_declarator(tk_list, i)
# print(f"first-lexem{first.lexem}")
# input()
if first.token == "<VARIABLE_DECLARATION>":
i = first.col[1]
while i < len(tk_list) and i + 1 < len(tk_list):
next, e = Analyzers2.is_variable_declarator(tk_list, i + 1)
# print(next.token)
# input()
if (
tk_list[i][1] == "<COMMAND_END>"
and next.token == "<VARIABLE_DECLARATION>"
):
i = next.col[1]
else:
break
# print(tk_list[i][1])
if i < len(tk_list) and tk_list[i][1] == "<COMMAND_END>":
return (
Token_(
tk_list[initial:i],
"<VARIABLE_DECLARATION_PART>",
(initial, i + 1),
),
errors,
)
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_factor(cls, tk_list: list) -> Token_:
if (tk_list == ["<VARIABLE>"] or tk_list == ["<NUMBER>"]
or tk_list == [
"<OPEN_PARENTHESIS>", "<EXPRESSION>", "<CLOSE_PARENTHESIS>"
] or tk_list == ["<KEYWORD_NOT>", "<FACTOR>"]):
return Token_("", "<FACTOR>", None)
return Token_("", None, None)
def is_procedure_declaration(cls, tk_list: list) -> dict:
if (3 < len(tk_list) <= 5 and tk_list[0] == "<KEYWORD_PROCEDURE>"
and tk_list[1] == "<IDENTIFIER>"
and tk_list[-2] == "<COMMAND_END>"
and tk_list[-1] == "<BLOC>"):
if len(tk_list) == 5 and tk_list[2] != "<FORMAL_PARAMETERS>":
return Token_("", None, None)
return Token_("", "<PROCEDURE_DECLARATION>", None)
return Token_("", None, None)
def is_composite_command(tk_list: list, i: int):
initial = i
errors = []
l = len(tk_list)
tk_atual = Convert(tk_list, i)
if i < l and tk_list[i][1] == "<KEYWORD_BEGIN>":
i += 1
else:
errors.append({"message": "begin expected", "line": "0", "col": "0"})
i = Analyzers2.error(
i + 1,
tk_list,
[
"<IDENTIFIER>",
"<KEYWORD_BEGIN>",
"<KEYWORD_IF>",
"<KEYWORD_PROCEDURE>",
"<KEYWORD_WHILE>",
],
limit=1,
)
if i < l:
res, e = Analyzers2.is_command(tk_list, i)
if res.token == "<COMMAND>":
i = res.col[1]
errors.extend(e)
while i + 1 < l:
res, e = Analyzers2.is_command(tk_list, i + 1)
if (
i < l
and tk_list[i][1] == "<COMMAND_END>"
and res.token == "<COMMAND>"
):
i = res.col[1]
errors.extend(e)
else:
break
if i < l and tk_list[i][1] == "<KEYWORD_END>":
return (
Token_(tk_list[initial:i], "<COMPOSITE_COMMAND>", (initial, i)),
errors,
)
else:
errors.append({"message": "end expected", "line": "0", "col": "0"})
i = Analyzers2.error(
i + 1,
tk_list,
["<KEYWORD_END>"],
)
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_variable(tk_list: list, i: int):
initial = i
errors = []
l = len(tk_list)
tk_atual = Convert(tk_list, i)
if i < l and tk_list[i][1] == "<IDENTIFIER>":
# res, e = Analyzers2.is_expression(tk_list, i + 1)
# if res.token == "<EXPRESSION>":
# i = res.col[1]
return Token_(tk_list[initial:i], "<VARIABLE>", (initial, i + 1)), errors
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_identifier_list(tk_list: list, i: int):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
if tk_list[i][1] == "<IDENTIFIER>":
i += 1
while i + 1 < len(tk_list):
if tk_list[i][1] == "<COMMA>" and tk_list[i + 1][1] == "<IDENTIFIER>":
i += 2
else:
break
return Token_(tk_list[initial:i], "<IDENTIFIER_LIST>", (initial, i)), errors
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_subroutines_declaration_part(cls, tk_list: list) -> dict:
i = 0
checked = True
while True:
if i < len(tk_list):
if (tk_list[i] != "<PROCEDURE_DECLARATION>"
or tk_list[i + 1] != "<COMMAND_END>"):
checked = False
else:
break
i += 2
if checked:
return Token_(tk_list, "<SUBROUTINES_DECLARATION_PART>", None)
else:
return Token_("", None, None)
def is_expression_list(tk_list: list, i: int):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
res, e = Analyzers2.is_expression(tk_list, i)
if res.token == "<EXPRESSION>":
i += res.col[1] + 1 # TODO: verificar finalização de indice
while i < len(tk_list) and i + 1 < len(tk_list):
res, e = Analyzers2.is_expression(tk_list, i + 1)
if tk_list[i][1] == "<COMMA>" and res.token == "<EXPRESSION>":
i += res.col[1] + 2
else:
break
return Token_(tk_list[initial:i], "<IDENTIFIER_LIST>", (initial, i)), errors
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_program(tk_list: list, i: int):
initial = i
errors = []
l = len(tk_list)
errors = []
tk_atual = Convert(tk_list, i)
if i < l and tk_list[i][1] == "<KEYWORD_PROGRAM>":
i += 1
else:
errors.append({"message": "program expected ", "line": "0", "col": "0"})
i = Analyzers2.error(i + 1, tk_list, ["<IDENTIFIER>"])
if i < l and tk_list[i][1] == "<IDENTIFIER>":
i += 1
else:
errors.append(
{"message": "program identifier expected", "line": "0", "col": "0"}
)
i = Analyzers2.error(i, tk_list, ["<COMMAND_END>"], limit=2)
if i < l and tk_list[i][1] == "<COMMAND_END>":
i += 1
else:
errors.append({"message": "';' expected", "line": "0", "col": "0"})
i = Analyzers2.error(
i,
tk_list,
[
"<SIMPLE_TYPE>",
"<KEYWORD_VAR>",
"<KEYWORD_PROCEDURE>",
"<KEYWORD_BEGIN>",
],
limit=2,
)
if i < l:
res, e = Analyzers2.is_bloc(tk_list, i)
errors.extend(e)
i = res.col[1] + 1 # get the end of the block plus 1
if res.token == "<BLOC>":
pass
if i < l and tk_list[i][1] == "<DOT>":
i += 1
else:
errors.append(
{
"message": "'.' expected on the end of program",
"line": "0",
"col": "0",
}
)
Analyzers2.error(i + 1, tk_list, [])
return Token_(tk_list[initial:i], "<PROGRAM>", (initial, i + 1)), errors
def is_variable_declarator(tk_list, i):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
# print(tk_list[i][1])
# input()
if tk_list[i][1] == "<SIMPLE_TYPE>":
is_ilist, e = Analyzers2.is_identifier_list(tk_list, i + 1)
simple_type = tk_list[i][0]
i = is_ilist.col[1]
if is_ilist.token == "<IDENTIFIER_LIST>":
token = Token_(
tk_list[initial:i], "<VARIABLE_DECLARATION>", (initial, i)
)
Analyzers2.semantic_analyzer.insert_identifiers(
value=is_ilist.lexem, variable_type=simple_type
)
return token, errors
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_part_var_declaration(cls, tk_list: list) -> dict:
checked = False
i = 0
while True:
if i < len(tk_list):
if tk_list[i] == "<VAR_DECLARATION>":
checked = True
else:
break
if i + 1 < len(tk_list) and tk_list[i + 1] == "<COMMAND_END>":
checked = False
i += 1
else:
break
i += 1
if checked:
return Token_(tk_list, "<VAR_DECLARATION_PART>", None)
else:
return Token_("", None, None)
def is_expression(cls, tk_list: list) -> Token_:
len_tk_list = len(tk_list)
if len_tk_list >= 1 and tk_list[0] == "<SIMPLE_EXPRESSION>":
i = 1
checked = True
while i < len_tk_list:
if not (tk_list[i] == "<RELATION>" and
(i + 1 < len_tk_list
and tk_list[i + 1] == "<SIMPLE_EXPRESSION>")):
checked = False
break
i += 2
if checked:
return Token_(tk_list, "<SIMPLE_EXPRESSION>", None)
return Token_("", None, None)
def is_expression_list(cls, tk_list: list):
checked = False
i = 0
while True:
if i < len(tk_list):
# print(i, i+1)
if tk_list[i] == "<EXPRESSION>":
checked = True
else:
break
if i + 1 < len(tk_list) and tk_list[i + 1] == "<COMMA>":
checked = False
i += 1
else:
break
i += 1
if checked:
return Token_(tk_list, "<EXPRESSION_LIST>", None)
else:
return Token_("", None, None)
def is_identifier_list(cls, tk_list: list) -> dict:
checked = False
i = 0
while True:
if i < len(tk_list):
# print(i, i+1)
if tk_list[i] == "<IDENTIFIER>":
checked = True
else:
break
if i + 1 < len(tk_list) and tk_list[i + 1] == "<COMMA>":
checked = False
i += 1
else:
break
i += 1
if checked:
return Token_(tk_list, "<IDENTIFIER_LIST>", None)
else:
return Token_("", None, None)
def is_repetitive_command(tk_list: list, i: int):
# verificar se dá pra analisar erro com o while
initial = i
errors = []
l = len(tk_list)
tk_atual = Convert(tk_list, i)
if i < l and tk_list[i][1] == "<KEYWORD_WHILE>":
res, e = Analyzers2.is_expression(tk_list, i + 1)
if res.token == "<EXPRESSION>":
i = res.col[1]
errors.extend(e)
if tk_list[i][1] == "<KEYWORD_DO>":
i += 1
else:
errors.append({"message": "'do' expected", "line": "0", "col": "0"})
i = Analyzers2.error(
i + 1,
tk_list,
[
"<IDENTIFIER>",
"<KEYWORD_IF>",
"<KEYWORD_PROCEDURE>",
"<KEYWORD_WHILE>",
],
limit=1,
)
res, e = Analyzers2.is_command(tk_list, i)
if res.token == "<COMMAND>":
i = res.col[1]
return (
Token_(
tk_list[initial:i], "<REPETITIVE_COMMAND_1>", (initial, i)
),
errors,
)
# ACHO QUE AQUI QUE FAREMOS A BUSCA DO FOLLOW
i = Analyzers2.error(
i, tk_list, ["<KEYWORD_END>", "<COMMAND_END>", "<KEYWORD_ELSE>"]
)
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_bloc(tk_list: list, i: int):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
res, e = Analyzers2.is_variable_declaration_part(tk_list, i)
if res.token == "<VARIABLE_DECLARATION_PART>":
i = res.col[1]
errors.extend(e)
res, e = Analyzers2.is_subroutine_declaration_part(tk_list, i)
if res.token == "<SUBROUTINE_DECLARATION_PART>":
i = res.col[1]
errors.extend(e)
res, e = Analyzers2.is_composite_command(tk_list, i)
if res.token == "<COMPOSITE_COMMAND>":
i = res.col[1]
errors.extend(e)
return Token_(tk_list[initial:i], "<BLOC>", (initial, i)), errors
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_procedure_declaration(tk_list, i):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
if tk_list[i][1] == "<KEYWORD_PROCEDURE>":
procedure = tk_list[i + 1][0]
Analyzers2.semantic_analyzer.declare_procedure(procedure)
Analyzers2.semantic_analyzer.set_scope(procedure)
if tk_list[i + 1][1] == "<IDENTIFIER>":
res, e = Analyzers2.is_formal_parameters(tk_list, i + 2)
if (
res.token == "<FORMAL_PARAMETERS>"
and tk_list[res.col[1] + 1][1] == "<COMMAND_END>"
):
i = res.col[1] + 1
res, e = Analyzers2.is_bloc(tk_list, i + 1)
if res.token == "<BLOC>":
# print("procedure declaration bloc")
i = res.col[1]
token = Token_(
tk_list[initial:i], "<PROCEDURE_DECLARATION>", (initial, i)
)
Analyzers2.semantic_analyzer.set_scope()
return token, errors
elif tk_list[i + 1][1] == "<COMMAND_END>":
i += 1
res, e = Analyzers2.is_bloc(tk_list, i + 1)
if res.token == "<BLOC>":
i = res.col[1] + 1
# print("procedure declaration bloc")
token = Token_(
tk_list[initial:i], "<PROCEDURE_DECLARATION>", (initial, i)
)
Analyzers2.semantic_analyzer.procedure_declaration(token)
Analyzers2.semantic_analyzer.set_scope()
return token, errors
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_therm(cls, tk_list: list) -> Token_:
len_tk_list = len(tk_list)
if len_tk_list >= 1 and tk_list[0] == "<FACTOR>":
i = 1
checked = True
while True:
if i < len_tk_list:
if not (tk_list[i] in [
"<MULTIPLICATION_SIGN>", "<DIVISION_SIGN>",
"<KEYWORD_AND>"
] and (i + 1 < len_tk_list
and tk_list[i + 1] == "<FACTOR>")):
checked = False
break
else:
break
i += 2
if checked:
return Token_(tk_list, "<THERM>", None)
return Token_("", None, None)
def is_expression(tk_list: list, i: int):
initial = i
errors = []
l = len(tk_list)
tk_atual = Convert(tk_list, i)
res, e = Analyzers2.is_simple_expression(tk_list, i)
if i < l and res.token == "<SIMPLE_EXPRESSION>":
i = res.col[1]
if i < l and tk_list[i][1] == "<RELATION>":
res, e = Analyzers2.is_simple_expression(tk_list, i + 1)
if res.token == "<SIMPLE_EXPRESSION>":
i = res.col[1]
else:
return (
Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)),
errors,
)
return Token_(tk_list[initial:i], "<EXPRESSION>", (initial, i)), errors
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def is_command(tk_list: list, i: int):
initial = i
errors = []
tk_atual = Convert(tk_list, i)
conditions = {
"<ASSIGNMENT>": Analyzers2.is_assignment,
"<PROCEDURE_CALL>": Analyzers2.is_procedure_call,
"<COMPOSITE_COMMAND>": Analyzers2.is_composite_command,
"<CONDITIONAL_COMMAND_1>": Analyzers2.is_conditional_command_1,
"<REPETITIVE_COMMAND_1>": Analyzers2.is_repetitive_command,
}
for token_type in conditions:
res, e = conditions[token_type](tk_list, i)
if res.token == token_type:
i = res.col[1]
errors.extend(e)
if token_type == "<COMPOSITE_COMMAND>":
i += 1
return Token_(tk_list[initial:i], "<COMMAND>", (initial, i)), errors
return Token_(tk_list[initial : i + 1], "<ERROR>", (initial, i + 1)), errors
def validate_token(self, tk_list: list) -> Token_:
# print(tk_list)
try:
return list(
filter(
lambda x: x.token != None,
[
validator(tk_list)
for validator in self.token_validators
],
)).pop()
except Exception as inst:
# print(inst)
return Token_("", None, None)
