nconfig: add search support
Remove the old hotkeys feature, and replace it by an interactive string
search.
From nconfig help:
Searching: pressing '/' triggers interactive search mode.
nconfig performs a case insensitive search for the string
in the menu prompts (no regex support).
Pressing the up/down keys highlights the previous/next
matching item. Backspace removes one character from the
match string. Pressing either '/' again or ESC exits
search mode. All other keys behave normally.
Miscellaneous other changes (including Rundy's and Justin's input).
Signed-off-by: Nir Tzachar <nir.tzachar@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
index 2ba71bc..18a215d 100644
--- a/scripts/kconfig/nconf.c
+++ b/scripts/kconfig/nconf.c
@@ -5,9 +5,12 @@
* Derived from menuconfig.
*
*/
+#define _GNU_SOURCE
+#include <string.h>
#define LKC_DIRECT_LINK
#include "lkc.h"
#include "nconf.h"
+#include <ctype.h>
static const char nconf_readme[] = N_(
"Overview\n"
@@ -23,7 +26,7 @@
" < > can be built in, modularized or removed\n"
" { } can be built in or modularized (selected by other feature)\n"
" - - are selected by other feature,\n"
-" XXX cannot be selected. use Symbol Info to find out why,\n"
+" XXX cannot be selected. Use Symbol Info to find out why,\n"
"while *, M or whitespace inside braces means to build in, build as\n"
"a module or to exclude the feature respectively.\n"
"\n"
@@ -41,9 +44,13 @@
" pressing <Enter> of <right-arrow>. Use <Esc> or <left-arrow> to go back.\n"
" Submenus are designated by \"--->\".\n"
"\n"
-" Shortcut: Press the option's highlighted letter (hotkey).\n"
-" Pressing a hotkey more than once will sequence\n"
-" through all visible items which use that hotkey.\n"
+" Searching: pressing '/' triggers interactive search mode.\n"
+" nconfig performs a case insensitive search for the string\n"
+" in the menu prompts (no regex support).\n"
+" Pressing the up/down keys highlights the previous/next\n"
+" matching item. Backspace removes one character from the\n"
+" match string. Pressing either '/' again or ESC exits\n"
+" search mode. All other keys behave normally.\n"
"\n"
" You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
" unseen options into view.\n"
@@ -141,21 +148,21 @@
" <Enter> or <right-arrow> selects submenus --->.\n"
" Capital Letters are hotkeys.\n"
" Pressing <Y> includes, <N> excludes, <M> modularizes features.\n"
-" Pressing SpaceBar toggles between the above options\n"
-" Press <Esc> or <left-arrow> to go back one menu, \n"
+" Pressing SpaceBar toggles between the above options.\n"
+" Press <Esc> or <left-arrow> to go back one menu,\n"
" <?> or <h> for Help, </> for Search.\n"
-" <1> is interchangable with <F1>, <2> with <F2>, etc.\n"
+" <1> is interchangeable with <F1>, <2> with <F2>, etc.\n"
" Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
-" <Esc> always leaves the current window\n"),
+" <Esc> always leaves the current window.\n"),
menu_instructions[] = N_(
" Arrow keys navigate the menu.\n"
" <Enter> or <right-arrow> selects submenus --->.\n"
" Capital Letters are hotkeys.\n"
" Pressing <Y> includes, <N> excludes, <M> modularizes features.\n"
" Pressing SpaceBar toggles between the above options\n"
-" Press <Esc>, <F3> or <left-arrow> to go back one menu, \n"
+" Press <Esc>, <F5> or <left-arrow> to go back one menu,\n"
" <?>, <F1> or <h> for Help, </> for Search.\n"
-" <1> is interchangable with <F1>, <2> with <F2>, etc.\n"
+" <1> is interchangeable with <F1>, <2> with <F2>, etc.\n"
" Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
" <Esc> always leaves the current window\n"),
radiolist_instructions[] = N_(
@@ -252,7 +259,6 @@
char str[256];
char tag;
void *usrptr;
- int is_hot;
int is_visible;
};
@@ -275,14 +281,6 @@
static int global_exit;
/* the currently selected button */
const char *current_instructions = menu_instructions;
-/* this array is used to implement hot keys. it is updated in item_make and
- * resetted in clean_items. It would be better to use a hash, but lets keep it
- * simple... */
-#define MAX_SAME_KEY MAX_MENU_ITEMS
-struct {
- int count;
- int ptrs[MAX_MENU_ITEMS];
-} hotkeys[1<<(sizeof(char)*8)];
static void conf(struct menu *menu);
static void conf_choice(struct menu *menu);
@@ -292,6 +290,7 @@
static void show_help(struct menu *menu);
static int do_exit(void);
static void setup_windows(void);
+static void search_conf(void);
typedef void (*function_key_handler_t)(int *key, struct menu *menu);
static void handle_f1(int *key, struct menu *current_item);
@@ -302,6 +301,7 @@
static void handle_f6(int *key, struct menu *current_item);
static void handle_f7(int *key, struct menu *current_item);
static void handle_f8(int *key, struct menu *current_item);
+static void handle_f9(int *key, struct menu *current_item);
struct function_keys {
const char *key_str;
@@ -310,7 +310,7 @@
function_key_handler_t handler;
};
-static const int function_keys_num = 8;
+static const int function_keys_num = 9;
struct function_keys function_keys[] = {
{
.key_str = "F1",
@@ -320,13 +320,13 @@
},
{
.key_str = "F2",
- .func = "Symbol Info",
+ .func = "Sym Info",
.key = F_SYMBOL,
.handler = handle_f2,
},
{
.key_str = "F3",
- .func = "Instructions",
+ .func = "Insts",
.key = F_INSTS,
.handler = handle_f3,
},
@@ -356,9 +356,15 @@
},
{
.key_str = "F8",
+ .func = "Sym Search",
+ .key = F_SEARCH,
+ .handler = handle_f8,
+ },
+ {
+ .key_str = "F9",
.func = "Exit",
.key = F_EXIT,
- .handler = handle_f8,
+ .handler = handle_f9,
},
};
@@ -444,9 +450,16 @@
return;
}
-/* exit */
+/* search */
static void handle_f8(int *key, struct menu *current_item)
{
+ search_conf();
+ return;
+}
+
+/* exit */
+static void handle_f9(int *key, struct menu *current_item)
+{
do_exit();
return;
}
@@ -479,110 +492,44 @@
free_item(curses_menu_items[i]);
bzero(curses_menu_items, sizeof(curses_menu_items));
bzero(k_menu_items, sizeof(k_menu_items));
- bzero(hotkeys, sizeof(hotkeys));
items_num = 0;
}
-/* return the index of the next hot item, or -1 if no such item exists */
-static int get_next_hot(int c)
+typedef enum {MATCH_TINKER_PATTERN_UP, MATCH_TINKER_PATTERN_DOWN,
+ FIND_NEXT_MATCH_DOWN, FIND_NEXT_MATCH_UP} match_f;
+
+/* return the index of the matched item, or -1 if no such item exists */
+static int get_mext_match(const char *match_str, match_f flag)
{
- static int hot_index;
- static int hot_char;
+ int match_start = item_index(current_item(curses_menu));
+ int index;
- if (c < 0 || c > 255 || hotkeys[c].count <= 0)
- return -1;
+ if (flag == FIND_NEXT_MATCH_DOWN)
+ ++match_start;
+ else if (flag == FIND_NEXT_MATCH_UP)
+ --match_start;
- if (hot_char == c) {
- hot_index = (hot_index+1)%hotkeys[c].count;
- return hotkeys[c].ptrs[hot_index];
- } else {
- hot_char = c;
- hot_index = 0;
- return hotkeys[c].ptrs[0];
+ index = match_start;
+ index = (index + items_num) % items_num;
+ while (true) {
+ char *str = k_menu_items[index].str;
+ if (strcasestr(str, match_str) != 0)
+ return index;
+ if (flag == FIND_NEXT_MATCH_UP ||
+ flag == MATCH_TINKER_PATTERN_UP)
+ --index;
+ else
+ ++index;
+ index = (index + items_num) % items_num;
+ if (index == match_start)
+ return -1;
}
}
-/* can the char c be a hot key? no, if c is a common shortcut used elsewhere */
-static int canbhot(char c)
-{
- c = tolower(c);
- return isalnum(c) && c != 'y' && c != 'm' && c != 'h' &&
- c != 'n' && c != '?';
-}
-
-/* check if str already contains a hot key. */
-static int is_hot(int index)
-{
- return k_menu_items[index].is_hot;
-}
-
-/* find the first possible hot key, and mark it.
- * index is the index of the item in the menu
- * return 0 on success*/
-static int make_hot(char *dest, int len, const char *org, int index)
-{
- int position = -1;
- int i;
- int tmp;
- int c;
- int org_len = strlen(org);
-
- if (org == NULL || is_hot(index))
- return 1;
-
- /* make sure not to make hot keys out of markers.
- * find where to start looking for a hot key
- */
- i = 0;
- /* skip white space */
- while (i < org_len && org[i] == ' ')
- i++;
- if (i == org_len)
- return -1;
- /* if encountering '(' or '<' or '[', find the match and look from there
- **/
- if (org[i] == '[' || org[i] == '<' || org[i] == '(') {
- i++;
- for (; i < org_len; i++)
- if (org[i] == ']' || org[i] == '>' || org[i] == ')')
- break;
- }
- if (i == org_len)
- return -1;
- for (; i < org_len; i++) {
- if (canbhot(org[i]) && org[i-1] != '<' && org[i-1] != '(') {
- position = i;
- break;
- }
- }
- if (position == -1)
- return 1;
-
- /* ok, char at org[position] should be a hot key to this item */
- c = tolower(org[position]);
- tmp = hotkeys[c].count;
- hotkeys[c].ptrs[tmp] = index;
- hotkeys[c].count++;
- /*
- snprintf(dest, len, "%.*s(%c)%s", position, org, org[position],
- &org[position+1]);
- */
- /* make org[position] uppercase, and all leading letter small case */
- strncpy(dest, org, len);
- for (i = 0; i < position; i++)
- dest[i] = tolower(dest[i]);
- dest[position] = toupper(dest[position]);
- k_menu_items[index].is_hot = 1;
- return 0;
-}
-
-/* Make a new item. Add a hotkey mark in the first possible letter.
- * As ncurses does not allow any attributes inside menue item, we mark the
- * hot key as the first capitalized letter in the string */
+/* Make a new item. */
static void item_make(struct menu *menu, char tag, const char *fmt, ...)
{
va_list ap;
- char tmp_str[256];
if (items_num > MAX_MENU_ITEMS-1)
return;
@@ -597,16 +544,13 @@
k_menu_items[items_num].is_visible = 1;
va_start(ap, fmt);
- vsnprintf(tmp_str, sizeof(tmp_str), fmt, ap);
- if (!k_menu_items[items_num].is_visible)
- memcpy(tmp_str, "XXX", 3);
+ vsnprintf(k_menu_items[items_num].str,
+ sizeof(k_menu_items[items_num].str),
+ fmt, ap);
va_end(ap);
- if (make_hot(
- k_menu_items[items_num].str,
- sizeof(k_menu_items[items_num].str), tmp_str, items_num) != 0)
- strncpy(k_menu_items[items_num].str,
- tmp_str,
- sizeof(k_menu_items[items_num].str));
+
+ if (!k_menu_items[items_num].is_visible)
+ memcpy(k_menu_items[items_num].str, "XXX", 3);
curses_menu_items[items_num] = new_item(
k_menu_items[items_num].str,
@@ -638,11 +582,9 @@
va_end(ap);
snprintf(tmp_str, sizeof(tmp_str), "%s%s",
k_menu_items[index].str, new_str);
- if (make_hot(k_menu_items[index].str,
- sizeof(k_menu_items[index].str), tmp_str, index) != 0)
- strncpy(k_menu_items[index].str,
- tmp_str,
- sizeof(k_menu_items[index].str));
+ strncpy(k_menu_items[index].str,
+ tmp_str,
+ sizeof(k_menu_items[index].str));
free_item(curses_menu_items[index]);
curses_menu_items[index] = new_item(
@@ -1027,23 +969,18 @@
static void center_item(int selected_index, int *last_top_row)
{
int toprow;
- int maxy, maxx;
- scale_menu(curses_menu, &maxy, &maxx);
set_top_row(curses_menu, *last_top_row);
toprow = top_row(curses_menu);
- if (selected_index >= toprow && selected_index < toprow+maxy) {
- /* we can only move the selected item. no need to scroll */
- set_current_item(curses_menu,
- curses_menu_items[selected_index]);
- } else {
- toprow = max(selected_index-maxy/2, 0);
- if (toprow >= item_count(curses_menu)-maxy)
+ if (selected_index < toprow ||
+ selected_index >= toprow+mwin_max_lines) {
+ toprow = max(selected_index-mwin_max_lines/2, 0);
+ if (toprow >= item_count(curses_menu)-mwin_max_lines)
toprow = item_count(curses_menu)-mwin_max_lines;
set_top_row(curses_menu, toprow);
- set_current_item(curses_menu,
- curses_menu_items[selected_index]);
}
+ set_current_item(curses_menu,
+ curses_menu_items[selected_index]);
*last_top_row = toprow;
post_menu(curses_menu);
refresh_all_windows(main_window);
@@ -1075,7 +1012,7 @@
/* position the menu at the middle of the screen */
scale_menu(curses_menu, &maxy, &maxx);
maxx = min(maxx, mwin_max_cols-2);
- maxy = mwin_max_lines-2;
+ maxy = mwin_max_lines;
menu_window = derwin(main_window,
maxy,
maxx,
@@ -1099,10 +1036,77 @@
refresh_all_windows(main_window);
}
+static void adj_match_dir(match_f *match_direction)
+{
+ if (*match_direction == FIND_NEXT_MATCH_DOWN)
+ *match_direction =
+ MATCH_TINKER_PATTERN_DOWN;
+ else if (*match_direction == FIND_NEXT_MATCH_UP)
+ *match_direction =
+ MATCH_TINKER_PATTERN_UP;
+ /* else, do no change.. */
+}
+
+struct match_state
+{
+ int in_search;
+ match_f match_direction;
+ char pattern[256];
+};
+
+/* Return 0 means I have handled the key. In such a case, ans should hold the
+ * item to center, or -1 otherwise.
+ * Else return -1 .
+ */
+static int do_match(int key, struct match_state *state, int *ans)
+{
+ char c = (char) key;
+ int terminate_search = 0;
+ *ans = -1;
+ if (key == '/' || (state->in_search && key == 27)) {
+ move(0, 0);
+ refresh();
+ clrtoeol();
+ state->in_search = 1-state->in_search;
+ bzero(state->pattern, sizeof(state->pattern));
+ state->match_direction = MATCH_TINKER_PATTERN_DOWN;
+ return 0;
+ } else if (!state->in_search)
+ return 1;
+
+ if (isalnum(c) || isgraph(c) || c == ' ') {
+ state->pattern[strlen(state->pattern)] = c;
+ state->pattern[strlen(state->pattern)] = '\0';
+ adj_match_dir(&state->match_direction);
+ *ans = get_mext_match(state->pattern,
+ state->match_direction);
+ } else if (key == KEY_DOWN) {
+ state->match_direction = FIND_NEXT_MATCH_DOWN;
+ *ans = get_mext_match(state->pattern,
+ state->match_direction);
+ } else if (key == KEY_UP) {
+ state->match_direction = FIND_NEXT_MATCH_UP;
+ *ans = get_mext_match(state->pattern,
+ state->match_direction);
+ } else if (key == KEY_BACKSPACE || key == 127) {
+ state->pattern[strlen(state->pattern)-1] = '\0';
+ adj_match_dir(&state->match_direction);
+ } else
+ terminate_search = 1;
+
+ if (terminate_search) {
+ state->in_search = 0;
+ bzero(state->pattern, sizeof(state->pattern));
+ move(0, 0);
+ refresh();
+ clrtoeol();
+ return -1;
+ }
+ return 0;
+}
static void conf(struct menu *menu)
{
- char pattern[256];
struct menu *submenu = 0;
const char *prompt = menu_get_prompt(menu);
struct symbol *sym;
@@ -1110,8 +1114,11 @@
int res;
int current_index = 0;
int last_top_row = 0;
-
- bzero(pattern, sizeof(pattern));
+ struct match_state match_state = {
+ .in_search = 0,
+ .match_direction = MATCH_TINKER_PATTERN_DOWN,
+ .pattern = "",
+ };
while (!global_exit) {
reset_menu();
@@ -1124,7 +1131,22 @@
_(menu_instructions),
current_index, &last_top_row);
keypad((menu_win(curses_menu)), TRUE);
- while (!global_exit && (res = wgetch(menu_win(curses_menu)))) {
+ while (!global_exit) {
+ if (match_state.in_search) {
+ mvprintw(0, 0,
+ "searching: %s", match_state.pattern);
+ clrtoeol();
+ }
+ refresh_all_windows(main_window);
+ res = wgetch(menu_win(curses_menu));
+ if (!res)
+ break;
+ if (do_match(res, &match_state, ¤t_index) == 0) {
+ if (current_index != -1)
+ center_item(current_index,
+ &last_top_row);
+ continue;
+ }
if (process_special_keys(&res,
(struct menu *) item_data()))
break;
@@ -1155,19 +1177,13 @@
if (res == 10 || res == 27 ||
res == 32 || res == 'n' || res == 'y' ||
res == KEY_LEFT || res == KEY_RIGHT ||
- res == 'm' || res == '/')
+ res == 'm')
break;
- else if (canbhot(res)) {
- /* check for hot keys: */
- int tmp = get_next_hot(res);
- if (tmp != -1)
- center_item(tmp, &last_top_row);
- }
refresh_all_windows(main_window);
}
refresh_all_windows(main_window);
- /* if ESC or left*/
+ /* if ESC or left*/
if (res == 27 || (menu != &rootmenu && res == KEY_LEFT))
break;
@@ -1235,9 +1251,6 @@
if (item_is_tag('t'))
sym_set_tristate_value(sym, mod);
break;
- case '/':
- search_conf();
- break;
}
}
}
@@ -1268,6 +1281,11 @@
int selected_index = 0;
int last_top_row = 0;
int res, i = 0;
+ struct match_state match_state = {
+ .in_search = 0,
+ .match_direction = MATCH_TINKER_PATTERN_DOWN,
+ .pattern = "",
+ };
active = sym_get_choice_value(menu->sym);
/* this is mostly duplicated from the conf() function. */
@@ -1294,7 +1312,22 @@
_(radiolist_instructions),
selected_index,
&last_top_row);
- while (!global_exit && (res = wgetch(menu_win(curses_menu)))) {
+ while (!global_exit) {
+ if (match_state.in_search) {
+ mvprintw(0, 0, "searching: %s",
+ match_state.pattern);
+ clrtoeol();
+ }
+ refresh_all_windows(main_window);
+ res = wgetch(menu_win(curses_menu));
+ if (!res)
+ break;
+ if (do_match(res, &match_state, &selected_index) == 0) {
+ if (selected_index != -1)
+ center_item(selected_index,
+ &last_top_row);
+ continue;
+ }
if (process_special_keys(
&res,
(struct menu *) item_data()))
@@ -1324,13 +1357,8 @@
break;
}
if (res == 10 || res == 27 || res == ' ' ||
- res == KEY_LEFT)
+ res == KEY_LEFT){
break;
- else if (canbhot(res)) {
- /* check for hot keys: */
- int tmp = get_next_hot(res);
- if (tmp != -1)
- center_item(tmp, &last_top_row);
}
refresh_all_windows(main_window);
}
@@ -1485,7 +1513,7 @@
/* set up the menu and menu window */
main_window = newwin(LINES-2, COLS-2, 2, 1);
keypad(main_window, TRUE);
- mwin_max_lines = LINES-6;
+ mwin_max_lines = LINES-7;
mwin_max_cols = COLS-6;
/* panels order is from bottom to top */
@@ -1532,9 +1560,10 @@
/* set btns menu */
curses_menu = new_menu(curses_menu_items);
menu_opts_off(curses_menu, O_SHOWDESC);
- menu_opts_off(curses_menu, O_SHOWMATCH);
+ menu_opts_on(curses_menu, O_SHOWMATCH);
menu_opts_on(curses_menu, O_ONEVALUE);
menu_opts_on(curses_menu, O_NONCYCLIC);
+ menu_opts_on(curses_menu, O_IGNORECASE);
set_menu_mark(curses_menu, " ");
set_menu_fore(curses_menu, attributes[MAIN_MENU_FORE]);
set_menu_back(curses_menu, attributes[MAIN_MENU_BACK]);
@@ -1550,8 +1579,6 @@
_(menu_no_f_instructions));
}
-
-
/* do the work */
while (!global_exit) {
conf(&rootmenu);