X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=lex.dcl;h=46c17135c5f21695a0e5d962a81cedb8d3588c43;hb=76d648be58ffa5c21cb9a53fb0232ab16d9f81b4;hp=f256af59e857849a664acb4501a84fcf646e20fb;hpb=4b8ac77a88528dd1eeac43fd7a6c2e6ac711d5a9;p=cc1516.git

diff --git a/lex.dcl b/lex.dcl
index f256af5..46c1713 100644
--- a/lex.dcl
+++ b/lex.dcl
@@ -1,26 +1,42 @@
 definition module lex
 
-import Data.Either
+from Data.Either import :: Either
+from yard import :: Error
+from AST import :: Pos
 
-:: Token
+:: Token :== (Pos, TokenValue)
+:: TokenValue
 	//Value tokens
 	= IdentToken String // Identifier
 	| NumberToken Int   // Integer
 	| CharToken Char    // Character literal
 	//Keyword tokens
 	| VarToken          // var keyword
-	| VoidToken         // void keyword
 	| ReturnToken       // return keyword
 	| IfToken           // if keyword
 	| ElseToken         // else keyword
 	| WhileToken        // while keyword
 	| TrueToken         // True keyword
 	| FalseToken        // False keyword
+	| VoidToken         // Void keyword
+	| IntTypeToken      // Int keyword
+	| CharTypeToken     // Char keyword
+	| BoolTypeToken     // Bool keyword
+	//Two character tokens
+	| DoubleColonToken  // ::
+	| NotEqualToken     // !=
+	| LesserEqToken     // <=
+	| GreaterEqToken    // >=
+	| EqualsToken       // ==
+	| AmpersandsToken   // &&
+	| PipesToken        // ||
+    | ArrowToken        // ->
+	| EmptyListToken	// []
 	//One character tokens
 	| BraceOpenToken    // (
 	| BraceCloseToken   // )
 	| CBraceOpenToken   // {
-	| CBraceCloseToken  // {
+	| CBraceCloseToken  // }
 	| SquareOpenToken   // [
 	| SquareCloseToken  // ]
 	| CommaToken        // ,
@@ -36,14 +52,7 @@ import Data.Either
 	| LesserToken       // <
 	| BiggerToken       // >
 	| ExclamationToken  // !
-	//Two character tokens
-	| DoubleColonToken  // ::
-	| LesserEqToken     // <=
-	| GreaterEqToken    // >=
-	| EqualsToken       // ==
-	| AmpersandsToken   // &&
-	| PipesToken        // ||
 
-:: LexerOutput a :== Either String a
+:: LexerOutput :== Either Error [Token]
 
-lexer :: [Char] -> LexerOutput [Token]
+lexer :: [Char] -> LexerOutput