%{
#include "parser.tab.hh"
%}

%%

\+                  return PLUS;
-                   return MINUS;
\*                  return STAR;
\/                  return DIVIDE;
%                   return MOD;

;                   return SEMICOLON;
:                   return COLON;
\?                  return QUESTION;
\$                  return DOLLAR;
\.                  return DOT;
\"                  return DQUOTE;
\'                  return SQUOTE;
,                   return COMMA;

\{                  return LCURLY;
\}                  return RCURLY;
\[                  return LBRACKET;
\]                  return RBRACKET;
\(                  return LPAREN;
\)                  return RPAREN;
\<                  return LESS;
\>                  return GREATER;

-?[0-9]+            return DEC_NUMBER;
-?[0-9]*\.[0-9]+    return REAL_NUMBER;

box                 return BOX;
camera              return CAMERA;
color               return COLOR;
height              return HEIGHT;
look_at             return LOOKAT;
material            return MATERIAL;
multisample         return MULTISAMPLE;
options             return OPTIONS;
plane               return PLANE;
position            return POSITION;
radius              return RADIUS;
reflectance         return REFLECTANCE;
scene               return SCENE;
shininess           return SHININESS;
size                return SIZE;
sphere              return SPHERE;
up                  return UP;
vfov                return VFOV;
width               return WIDTH;

\n                  /* ignore newlines */
[ \t\v]             /* ignore whitespace */

%%