def rbraces(self):
if self.getChar() == "{":
self.indentPosition()
return parser.Token(ast.TokenType.leftBrace, "", self.line)
if self.getChar() == "}":
self.indentPosition()
return parser.Token(ast.TokenType.rightBrace, "", self.line)
def rparenthesis(self):
if self.getChar() == "(":
self.indentPosition()
return parser.Token(ast.TokenType.leftParenthesis, "", self.line)
if self.getChar() == ")":
self.indentPosition()
return parser.Token(ast.TokenType.rightParenthesis, "", self.line)
def rstring(self):
esq = ""
self.indentPosition()
try:
while self.getChar() != "\"":
if self.getChar() == "~":
esq += self.getChar()
self.appendToString()
esq += self.getChar()
if esq not in self.escapeSeq:
self.printError("UNKNOWN ESCAPE SEQUENCE")
sys.exit()
self.appendToString()
else:
self.appendToString()
except IndexError:
self.printError("NO STRING TERMINATION FOUND")
else:
self.indentPosition()
counter = 0
for x in self.tempString:
if x == "~n" or x == "\n":
self.indentLine()
counter += 1
memeString = self.tempString
for x in self.escapeSeq:
memeString = memeString.replace(x, self.escapeSeq[x])
return parser.Token(ast.TokenType.stringLiteral, memeString,
self.line - counter)
def rindentifier(self):
while self.checkLenght():
if not (self.getChar().isalpha() or self.getChar().isdigit()
or self.getChar() == "_"):
break
else:
self.appendToString()
if self.tempString in self.keywords:
return parser.Token(ast.TokenType.keyword, self.tempString,
self.line)
elif self.tempString == "truth" or self.tempString == "lie":
return parser.Token(ast.TokenType.booleanLiteral, self.tempString,
self.line)
elif self.tempString == "and":
return parser.Token(ast.TokenType.logicalAnd, "", self.line)
elif self.tempString == "comment_start":
self.rcomment()
elif self.tempString == "or":
return parser.Token(ast.TokenType.logicalOr, "", self.line)
else:
return parser.Token(ast.TokenType.identifier, self.tempString,
self.line)
def rint(self):
while self.checkLenght() and self.getChar().isdigit():
self.appendToString()
if self.position == self.getLenght():
break
if self.getChar() == "." or self.getChar() == "e":
self.appendToString()
return self.rfloat()
if self.getChar().isalpha() or self.getChar() == "_":
self.printError("INVALID SUFFIX AFTER INTEGER")
sys.exit()
return parser.Token(ast.TokenType.integerLiteral, self.tempString,
self.line)
def rfloat(self):
if self.getChar() == "-":
self.appendToString()
if not self.getChar().isdigit():
self.printError("INVALID SUFFIX AFTER FLOAT")
sys.exit()
while self.checkLenght() and self.getChar().isdigit():
self.appendToString()
if self.position == self.getLenght():
break
if self.getChar().isalpha() or self.getChar() == "_":
self.printError("INVALID SUFFIX AFTER FLOAT")
sys.exit()
return parser.Token(ast.TokenType.floatLiteral, self.tempString,
self.line)
def rnewline(self):
self.indentLine()
self.indentPosition()
return parser.Token(ast.TokenType.newLine, "", self.line - 1)
def roperator(self):
if self.getChar() == "<":
self.appendToString()
if self.checkLenght() and self.getChar() == "=":
self.appendToString()
return parser.Token(ast.TokenType.lessThanOrEqual, "",
self.line)
return parser.Token(ast.TokenType.lessThan, "", self.line)
if self.getChar() == ">":
self.appendToString()
if self.position < self.getLenght() and self.getChar() == "=":
self.appendToString()
return parser.Token(ast.TokenType.greaterThanOrEqual, "",
self.line)
return parser.Token(ast.TokenType.greaterThan, "", self.line)
if self.getChar() == "!":
self.appendToString()
if self.checkLenght() and self.getChar() == "=":
self.appendToString()
return parser.Token(ast.TokenType.notEqual, "", self.line)
return parser.Token(ast.TokenType.notSomething, "", self.line)
if self.getChar() == "=":
self.appendToString()
if self.checkLenght() and self.getChar() == "=":
self.appendToString()
return parser.Token(ast.TokenType.equal, "", self.line)
return parser.Token(ast.TokenType.assign, "", self.line)
if self.getChar() == "+":
self.indentPosition()
return parser.Token(ast.TokenType.plus, "", self.line)
if self.getChar() == "-":
self.indentPosition()
if self.getChar() == ">":
self.indentPosition()
return parser.Token(ast.TokenType.assign, "", self.line)
return parser.Token(ast.TokenType.minus, "", self.line)
if self.getChar() == "*":
self.indentPosition()
return parser.Token(ast.TokenType.mult, "", self.line)
if self.getChar() == "/":
self.indentPosition()
return parser.Token(ast.TokenType.div, "", self.line)
def rcomma(self):
if self.getChar() == ",":
self.indentPosition()
return parser.Token(ast.TokenType.comma, "", self.line)
def reof(self):
return parser.Token(ast.TokenType.endOfFile, "", self.line)