dcl voor interface infrastructure, we lezen nu stdin, dat werkt, lexer implementeren...

[cc1516.git] / lex.icl

diff --git a/lex.icl b/lex.icl
index 34d913c..cc4bc2f 100644 (file)
--- a/lex.icl
+++ b/lex.icl
@@ -1,40 +1,32 @@
-module lex
+implementation module lex
 
-:: Token
-       //Values
-       = IdentToken String // Identifier
-       | NumberToken Int   // Integer
-       //Keywords
-       | VarToken          // var keyword
-       | VoidToken         // void keyword
-       | ReturnToken       // return keyword
-       | IfToken           // if keyword
-       | ElseToken         // else keyword
-       | WhileToken        // while keyword
-       | TrueToken         // True keyword
-       | FalseToken        // False keyword
-       //Single Characters
-       | BraceOpenToken    // (
-       | BraceCloseToken   // )
-       | CBraceOpenToken   // {
-       | CBraceCloseToken  // {
-       | SquareOpenToken   // [
-       | SquareCloseToken  // ]
-       | CommaToken        // ,
-       | ColonToken        // :
-       | SColonToken       // ;
-       | DotToken          // .
-       | PlusToken         // +
-       | DashToken         // -
-       | StarToken         // *
-       | SlashToken        // /
-       | PercentToken      // %
-       | EqualsToken       // =
-       | LesserToken       // <
-       | BiggerToken       // >
-       | ExclamationToken  // !
-       | AmpersandToken    // &
-       | PipeToken         // |
-       | SingleQuoteToken  // '
+import Data.Either
+import Data.List
+import StdString
+import System.CommandLine
+import StdFile
+import StdMisc
 
-Start = "Hello World!\n"
+// Misschien moeten we hier continuation style van maken
+instance toString lexerOutput where
+       toString l = "dit is een lexer output, danwel error\n"
+
+lexer :: [Char] -> LexerOutput
+lexer _ = Left "Not Implemented"
+
+Start :: *World -> *World
+Start w
+# (args, w) = getCommandLine w // We lezen nu nog standaard van stdin
+# (out, w) = stdio w
+# (toparse, out) = readEntireFile out
+# out = out <<< toString (lexer toparse)
+# (b, w) = fclose out w
+| not b = setReturnCode 1 w
+= w
+       where
+               readEntireFile :: *File -> *([Char], *File)
+               readEntireFile f
+               # (b, c, f) = freadc f
+               | not b = ([], f)
+               # (cs, f) = readEntireFile f
+               = ([c:cs], f)