working on parser

git-svn-id: svn://anubis/fart/trunk@84 7f9b0f55-74a9-4bce-be96-3c2cd072584d

parser/parser.lex

@@ -4,6 +4,7 @@
 %}
 
 %%
+
 \+                  return PLUS;
 -                   return MINUS;
 \*                  return STAR;
@@ -28,12 +29,15 @@
 \<                  return LESS;
 \>                  return GREATER;
 
-0b[01]+             return BIN_NUMBER;
+[0-9]+              return DEC_NUMBER;
-0x[0-9A-Fa-f]+      return HEX_NUMBER;
+[0-9]*\.[0-9]+      return REAL_NUMBER;
-0[0-7]*             return OCT_NUMBER;
-[1-9][0-9]*         return DEC_NUMBER;
 
+camera              return CAMERA;
+color               return COLOR;
+position            return POSITION;
+scene               return SCENE;
 
 \n                  /* ignore newlines */
 [ \t\v]             /* ignore whitespace */
+
 %%

parser/parser.yy

@@ -46,21 +46,22 @@ int yywrap()
 %token LESS;
 %token GREATER;
 
-%token BIN_NUMBER;
-%token HEX_NUMBER;
-%token OCT_NUMBER;
 %token DEC_NUMBER;
+%token REAL_NUMBER;
+
+%token CAMERA;
+%token COLOR;
+%token POSITION;
+%token SCENE;
 
 %%
 
-program: /* empty */
+scene: /* empty */
-       | number program { printf("Saw a number\n"); }
+       | scene_spec { printf("Saw a number\n"); }
        ;
 
-number: BIN_NUMBER
+number: DEC_NUMBER
-      | OCT_NUMBER
+      | REAL_NUMBER
-      | DEC_NUMBER
-      | HEX_NUMBER
       ;
 
 %%