%%
%include Jflex.include
%include JflexCup.include

ANY   = [^]
BLANC = [ \t\f]
NL    = \R 
COMMENT = "#".*
IGNORE = {BLANC} | {COMMENT} 
ENTIER = [0-9]+
IDENT = [:jletter:] [:jletterdigit:]*
   
%%
union     { return TOKEN(UNION); }
inter     { return TOKEN(INTER); }
diff      { return TOKEN(DIFF);  }
"="       { return TOKEN(AFF);   }
"("       { return TOKEN(LPAR);  }
")"       { return TOKEN(RPAR);  }
"{"       { return TOKEN(LSET);  }
"}"       { return TOKEN(RSET);  }
","       { return TOKEN(COMMA);  }
{NL}      { return TOKEN(NL);  }
{ENTIER}  { return TOKEN(ENTIER,Integer.parseInt(yytext())); }
{IDENT}   { return TOKEN(VAR, yytext()); }
{IGNORE}  {}
{ANY}     { WARN("Unknown char.: " + yytext()); return TOKEN(error); }