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if statements work

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SpookyDervish
2025-10-14 21:23:11 +11:00
parent 48e7488a63
commit 3d9208f0f8
7 changed files with 256 additions and 34 deletions
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33
lexer.py
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@@ -95,8 +95,39 @@ class Lexer:
tok = self.__new_token(TokenType.POW, self.current_char)
case "%":
tok = self.__new_token(TokenType.MODULUS, self.current_char)
case "<":
# Handle <=
if self.__peek_char() == "=":
ch = self.current_char
self.__read_char()
tok = self.__new_token(TokenType.LT_EQ, ch + self.current_char)
else:
tok = self.__new_token(TokenType.LT, self.current_char)
case ">":
# Handle >=
if self.__peek_char() == "=":
ch = self.current_char
self.__read_char()
tok = self.__new_token(TokenType.GT_EQ, ch + self.current_char)
else:
tok = self.__new_token(TokenType.GT, self.current_char)
case "=":
tok = self.__new_token(TokenType.EQ, self.current_char)
# Handle ==
if self.__peek_char() == "=":
ch = self.current_char
self.__read_char()
tok = self.__new_token(TokenType.EQ_EQ, ch + self.current_char)
else:
tok = self.__new_token(TokenType.EQ, self.current_char)
case "!":
# Handle !=
if self.__peek_char() == "=":
ch = self.current_char
self.__read_char()
tok = self.__new_token(TokenType.NOT_EQ, ch + self.current_char)
else:
# TODO: handle BANG
tok = self.__new_token(TokenType.ILLEGAL, self.current_char)
case "(":
tok = self.__new_token(TokenType.LPAREN, self.current_char)
case ")":