%option nounput
%option bison-locations

%{

#include "nodes.h"
#include "parser.h"
#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]+            *yylval = new IntegerNode(atoi(yytext)); return DEC_NUMBER;
-?[0-9]*\.[0-9]+    *yylval = new NumberNode(atof(yytext)); return REAL_NUMBER;

ambient             return AMBIENT;
ambient_occlusion   return AMBIENT_OCCLUSION;
box                 return BOX;
camera              return CAMERA;
color               return COLOR;
cyl                 return CYL;
define              return DEFINE;
diffuse             return DIFFUSE;
exposure            return EXPOSURE;
extrude             return EXTRUDE;
height              return HEIGHT;
intersect           return INTERSECT;
jitter              return JITTER;
light               return LIGHT;
look_at             return LOOKAT;
material            return MATERIAL;
max_depth           return MAXDEPTH;
multisample         return MULTISAMPLE;
ngon                return NGON;
offset              return OFFSET;
options             return OPTIONS;
plane               return PLANE;
polygon             return POLYGON;
position            return POSITION;
radius              return RADIUS;
reflectance         return REFLECTANCE;
rotate              return ROTATE;
scale               return SCALE;
scene               return SCENE;
shininess           return SHININESS;
size                return SIZE;
specular            return SPECULAR;
sphere              return SPHERE;
subtract            return SUBTRACT;
translate           return TRANSLATE;
transparency        return TRANSPARENCY;
union               return UNION;
up                  return UP;
vfov                return VFOV;
width               return WIDTH;

[a-zA-Z_][a-zA-Z_0-9]*  {
                    *yylval = new IdentifierNode(yytext);
                    return IDENTIFIER;
}

\n                  yylloc->first_line++; yylloc->last_line++;
[ \t\v]             /* ignore whitespace */

.                   return yytext[0];

%%