2 /* $NetBSD: arith_lex.l,v 1.14 2007/03/25 06:29:26 apb Exp $ */
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8 * This code is derived from software contributed to Berkeley by
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36 #include <sys/cdefs.h>
39 static char sccsid[] = "@(#)arith_lex.l 8.3 (Berkeley) 5/4/95";
41 __RCSID("$NetBSD: arith_lex.l,v 1.14 2007/03/25 06:29:26 apb Exp $");
51 extern intmax_t yylval;
52 extern const char *arith_buf, *arith_startbuf;
54 #define YY_INPUT(buf,result,max) \
55 result = (*buf = *arith_buf++) ? 1 : YY_NULL;
58 %option nounput noinput
62 0x[0-9a-fA-F]+ { yylval = strtoimax(yytext, 0, 0); return(ARITH_NUM); }
63 0[0-7]* { yylval = strtoimax(yytext, 0, 0); return(ARITH_NUM); }
64 [1-9][0-9]* { yylval = strtoimax(yytext, 0, 0); return(ARITH_NUM); }
65 [A-Za-z_][A-Za-z_0-9]* { char *v = lookupvar(yytext);
67 yylval = strtoimax(v, &v, 0);
71 error("arith: syntax error: \"%s\"", arith_startbuf);
73 "(" { return(ARITH_LPAREN); }
74 ")" { return(ARITH_RPAREN); }
75 "||" { return(ARITH_OR); }
76 "&&" { return(ARITH_AND); }
77 "|" { return(ARITH_BOR); }
78 "^" { return(ARITH_BXOR); }
79 "&" { return(ARITH_BAND); }
80 "==" { return(ARITH_EQ); }
81 "!=" { return(ARITH_NE); }
82 ">" { return(ARITH_GT); }
83 ">=" { return(ARITH_GE); }
84 "<" { return(ARITH_LT); }
85 "<=" { return(ARITH_LE); }
86 "<<" { return(ARITH_LSHIFT); }
87 ">>" { return(ARITH_RSHIFT); }
88 "*" { return(ARITH_MUL); }
89 "/" { return(ARITH_DIV); }
90 "%" { return(ARITH_REM); }
91 "+" { return(ARITH_ADD); }
92 "-" { return(ARITH_SUB); }
93 "~" { return(ARITH_BNOT); }
94 "!" { return(ARITH_NOT); }
95 . { error("arith: syntax error: \"%s\"", arith_startbuf); }