def exprLevel1(self):
if self.current.type in ("STRING", "CHARACTER"):
return caenodes.StringNode(
str(self.current.value
)) if self.current.type == "STRING" else caenodes.CharNode(
str(self.current.value))
if not self.signals["num"]:
self.advance(-1)
if self.current.type in ("INTEGER", "FLOAT"):
return caenodes.NumberNode(str(self.current.value))
else:
caeerr.throw(caeerr._SyntaxError,
"Expected an int, float, string or char")
def exprLevel5(self):
if self.current.type in ("INTEGER", "FLOAT"):
self.advance(2)
if self.current == "cae-end-of-file":
self.advance(-2)
return self.exprLevel1()
else:
self.signals["num"]: bool == False
self.advance(-2)
left = self.exprLevel4()
self.advance()
if self.current != "cae-end-of-file":
self.advance(-1)
if self.current.type in ("PLUS", "MINUS"):
op = self.current.value
self.advance()
if self.current.type in ("INTEGER", "FLOAT"):
right = self.exprLevel4()
return caenodes.BinOpNode(left, op, right)
elif self.current.type in ("MUL", "DIV"):
self.advance(-1)
return self.exprLevel4()
else:
return left
elif self.current.type in ("STRING", "CHARACTER"):
self.advance(2)
if self.current == "cae-end-of-file":
self.advance(-2)
return self.exprLevel1()
else:
self.signals["num"]: bool == False
self.advance(-2)
left = self.exprLevel1()
self.advance()
if self.current.type in ("PLUS"):
op = self.current.value
self.advance()
if self.current.type in ("INTEGER", "FLOAT"):
right = self.highest()
return caenodes.BinOpNode(left, op, right)
elif self.current.type in ("MUL"):
self.advance(-1)
return self.exprLevel4()
else:
caeerr.throw(caeerr._SyntaxError,
"Expected an int, float, string or char")
def mul(self, **args):
caeerr.throw(caeerr.UnsupportedOpError, "Unsupported Operation")
def div(self, right):
try:
return self.num / right.num
except ZeroDivisionError:
caeerr.throw(caeerr._ZeroDivisionError, "Zero Division")