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36 static char sccsid[] = "@(#)arith_lex.l 8.3 (Berkeley) 5/4/95";
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
59 static struct varname *varnames;
62 #define YY_INPUT(buf,result,max) \
63 result = (*buf = *arith_buf++) ? 1 : YY_NULL;
71 yylval.l_value = strtoarith_t(yytext, NULL, 16);
76 yylval.l_value = strtoarith_t(yytext, NULL, 8);
81 yylval.l_value = strtoarith_t(yytext, NULL, 10);
85 [A-Za-z][A-Za-z0-9_]* {
87 * If variable doesn't exist, we should initialize
91 if (lookupvar(yytext) == NULL)
92 setvarsafe(yytext, "0", 0);
93 temp = ckmalloc(sizeof(struct varname) +
95 temp->next = varnames;
97 yylval.s_value = strcpy(temp->name, yytext);
102 "(" { return ARITH_LPAREN; }
103 ")" { return ARITH_RPAREN; }
104 "||" { return ARITH_OR; }
105 "&&" { return ARITH_AND; }
106 "|" { return ARITH_BOR; }
107 "^" { return ARITH_BXOR; }
108 "&" { return ARITH_BAND; }
109 "==" { return ARITH_EQ; }
110 "!=" { return ARITH_NE; }
111 ">" { return ARITH_GT; }
112 ">=" { return ARITH_GE; }
113 "<" { return ARITH_LT; }
114 "<=" { return ARITH_LE; }
115 "<<" { return ARITH_LSHIFT; }
116 ">>" { return ARITH_RSHIFT; }
117 "*" { return ARITH_MUL; }
118 "/" { return ARITH_DIV; }
119 "%" { return ARITH_REM; }
120 "+" { return ARITH_ADD; }
121 "-" { return ARITH_SUB; }
122 "~" { return ARITH_BNOT; }
123 "!" { return ARITH_NOT; }
124 "=" { return ARITH_ASSIGN; }
125 "+=" { return ARITH_ADDASSIGN; }
126 "-=" { return ARITH_SUBASSIGN; }
127 "*=" { return ARITH_MULASSIGN; }
128 "/=" { return ARITH_DIVASSIGN; }
129 "%=" { return ARITH_REMASSIGN; }
130 ">>=" { return ARITH_RSHASSIGN; }
131 "<<=" { return ARITH_LSHASSIGN; }
132 "&=" { return ARITH_BANDASSIGN; }
133 "^=" { return ARITH_BXORASSIGN; }
134 "|=" { return ARITH_BORASSIGN; }
136 error("arith: syntax error: \"%s\"\n", arith_startbuf);
141 arith_lex_reset(void)
143 struct varname *name, *next;
148 while (name != NULL) {