+struct symbol **sym_re_search(const char *pattern)
+{
+ struct symbol *sym, **sym_arr = NULL;
+ int i, cnt, size;
+ regex_t re;
+
+ cnt = size = 0;
+ /* Skip if empty */
+ if (strlen(pattern) == 0)
+ return NULL;
+ if (regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB|REG_ICASE))
+ return NULL;
+
+ for_all_symbols(i, sym) {
+ if (sym->flags & SYMBOL_CONST || !sym->name)
+ continue;
+ if (regexec(&re, sym->name, 0, NULL, 0))
+ continue;
+ if (cnt + 1 >= size) {
+ void *tmp = sym_arr;
+ size += 16;
+ sym_arr = realloc(sym_arr, size * sizeof(struct symbol *));
+ if (!sym_arr) {
+ free(tmp);
+ return NULL;
+ }
+ }
+ sym_arr[cnt++] = sym;
+ }
+ if (sym_arr)
+ sym_arr[cnt] = NULL;
+ regfree(&re);
+
+ return sym_arr;
+}
+
+