P(sym_lookup,struct symbol *,(const char *name, int isconst));
P(sym_find,struct symbol *,(const char *name));
+P(sym_re_search,struct symbol **,(const char *pattern));
P(sym_type_name,const char *,(enum symbol_type type));
P(sym_calc_value,void,(struct symbol *sym));
P(sym_get_type,enum symbol_type,(struct symbol *sym));