util/kconfig/mnconf-common.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 #include "expr.h"
   3 #include "list.h"
   4 #include "mnconf-common.h"
   5
   6 int jump_key_char;
   7
   8 int next_jump_key(int key)
   9 {
  10         if (key < '1' || key > '9')
  11                 return '1';
  12
  13         key++;
  14
  15         if (key > '9')
  16                 key = '1';
  17
  18         return key;
  19 }
  20
  21 int handle_search_keys(int key, size_t start, size_t end, void *_data)
  22 {
  23         struct search_data *data = _data;
  24         struct jump_key *pos;
  25         int index = 0;
  26
  27         if (key < '1' || key > '9')
  28                 return 0;
  29
  30         list_for_each_entry(pos, data->head, entries) {
  31                 index = next_jump_key(index);
  32
  33                 if (pos->offset < start)
  34                         continue;
  35
  36                 if (pos->offset >= end)
  37                         break;
  38
  39                 if (key == index) {
  40                         data->target = pos->target;
  41                         return 1;
  42                 }
  43         }
  44
  45         return 0;
  46 }
  47
  48 int get_jump_key_char(void)
  49 {
  50         jump_key_char = next_jump_key(jump_key_char);
  51
  52         return jump_key_char;
  53 }