Flex: orig.l

%option noyywrap noinput nounput
%%
[0-9]+ { yylval = atoi(yytext); return KAZU; }
[\(\)\+\-\*\/;] { return yytext[0]; }
mplus { return MPLUS; }
mminus { return MMINUS; }
mclear { return MCLEAR; }
mprint { return MPRINT; }
[ \t\n]+|.|\/\/.* /* do nothing */
%%