52   struct expression *exp;  member
146 %type <exp> exp
150 start:	  exp
158 exp:	  exp '?' exp ':' exp
162 	| exp '|' exp
166 	| exp '&' exp
170 	| exp EQUOP2 exp
174 	| exp CMPOP2 exp
178 	| exp ADDOP2 exp
182 	| exp MULOP2 exp
186 	| '!' exp
199 	| '(' exp ')'
209 FREE_EXPRESSION (struct expression *exp)
211   if (exp == NULL)
215   switch (exp->nargs)
218       FREE_EXPRESSION (exp->val.args[2]);
221       FREE_EXPRESSION (exp->val.args[1]);
224       FREE_EXPRESSION (exp->val.args[0]);
230   free (exp);
237   const char *exp = *pexp;  in yylex()  local
242       if (exp[0] == '\0')  in yylex()
244 	  *pexp = exp;  in yylex()
248       if (exp[0] != ' ' && exp[0] != '\t')  in yylex()
251       ++exp;  in yylex()
254   result = *exp++;  in yylex()
261 	while (exp[0] >= '0' && exp[0] <= '9')  in yylex()
264 	    n += exp[0] - '0';  in yylex()
265 	    ++exp;  in yylex()
273       if (exp[0] == '=')  in yylex()
275 	  ++exp;  in yylex()
284       if (exp[0] == '=')  in yylex()
286 	  ++exp;  in yylex()
294       if (exp[0] == result)  in yylex()
295 	++exp;  in yylex()
301       if (exp[0] == '=')  in yylex()
303 	  ++exp;  in yylex()
312       if (exp[0] == '=')  in yylex()
314 	  ++exp;  in yylex()
359       --exp;  in yylex()
366       --exp;  in yylex()
371   *pexp = exp;  in yylex()