import java_cup.runtime.*;  // definition of scanner/parser interface

/* semantic value of token returned by scanner */
class TokenValue {
  public String text;

  TokenValue() {
  }

  TokenValue(String text) {
    this.text = text; 
  }

  public String toString() { 
    return text;
  }
}
%%

%cup

%eofval{
  return new Symbol(sym.EOF);
%eofval}
%%
<YYINITIAL> AND
    { return new Symbol(sym.AND, new TokenValue()); }
<YYINITIAL> -?[0-9]+ 
    { return new Symbol(sym.NUMBER, new Integer(yytext())); }
<YYINITIAL> WHERE 
    { return new Symbol(sym.WHERE); }
<YYINITIAL> >= 
    { return new Symbol(sym.GE); }
<YYINITIAL> = 
    { return new Symbol(sym.EQ); }
<YYINITIAL> <= 
    { return new Symbol(sym.LE); }
<YYINITIAL> > 
    { return new Symbol(sym.GT); }
<YYINITIAL> != 
    { return new Symbol(sym.NE); }
<YYINITIAL> <
    { return new Symbol(sym.LT); }
<YYINITIAL> SELECT 
    { return new Symbol(sym.SELECT); }
<YYINITIAL> FROM 
    { return new Symbol(sym.FROM); }
<YYINITIAL> [a-zA-Z]+ 
    { return new Symbol(sym.ID, new TokenValue(yytext())); }
<YYINITIAL> ,
    { return new Symbol(sym.COMMA); }
<YYINITIAL> [ \t\n]
  {  }
<YYINITIAL> .
  {  return new Symbol(sym.error, new TokenValue(yytext())); }