summaryrefslogtreecommitdiffstats
path: root/scripts/kconfig/mconf.c
blob: 820d2b6800fb5d856a56394cd9786610337fc8b8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
/*
 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
 * Released under the terms of the GNU GPL v2.0.
 *
 * Introduced single menu mode (show all sub-menus in one large tree).
 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
 *
 * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
 */

#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <locale.h>

#include "lkc.h"
#include "lxdialog/dialog.h"

static const char mconf_readme[] = N_(
"Overview\n"
"--------\n"
"This interface let you select features and parameters for the build.\n"
"Features can either be built-in, modularized, or ignored. Parameters\n"
"must be entered in as decimal or hexadecimal numbers or text.\n"
"\n"
"Menu items beginning with following braces represent features that\n"
"  [ ] can be built in or removed\n"
"  < > 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"
"while *, M or whitespace inside braces means to build in, build as\n"
"a module or to exclude the feature respectively.\n"
"\n"
"To change any of these features, highlight it with the cursor\n"
"keys and press <Y> to build it in, <M> to make it a module or\n"
"<N> to removed it.  You may also press the <Space Bar> to cycle\n"
"through the available options (ie. Y->N->M->Y).\n"
"\n"
"Some additional keyboard hints:\n"
"\n"
"Menus\n"
"----------\n"
"o  Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
"   you wish to change or submenu wish to select and press <Enter>.\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"
"\n"
"   You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
"   unseen options into view.\n"
"\n"
"o  To exit a menu use the cursor keys to highlight the <Exit> button\n"
"   and press <ENTER>.\n"
"\n"
"   Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
"             using those letters.  You may press a single <ESC>, but\n"
"             there is a delayed response which you may find annoying.\n"
"\n"
"   Also, the <TAB> and cursor keys will cycle between <Select>,\n"
"   <Exit> and <Help>.\n"
"\n"
"o  To get help with an item, use the cursor keys to highlight <Help>\n"
"   and press <ENTER>.\n"
"\n"
"   Shortcut: Press <H> or <?>.\n"
"\n"
"o  To toggle the display of hidden options, press <Z>.\n"
"\n"
"\n"
"Radiolists  (Choice lists)\n"
"-----------\n"
"o  Use the cursor keys to select the option you wish to set and press\n"
"   <S> or the <SPACE BAR>.\n"
"\n"
"   Shortcut: Press the first letter of the option you wish to set then\n"
"             press <S> or <SPACE BAR>.\n"
"\n"
"o  To see available help for the item, use the cursor keys to highlight\n"
"   <Help> and Press <ENTER>.\n"
"\n"
"   Shortcut: Press <H> or <?>.\n"
"\n"
"   Also, the <TAB> and cursor keys will cycle between <Select> and\n"
"   <Help>\n"
"\n"
"\n"
"Data Entry\n"
"-----------\n"
"o  Enter the requested information and press <ENTER>\n"
"   If you are entering hexadecimal values, it is not necessary to\n"
"   add the '0x' prefix to the entry.\n"
"\n"
"o  For help, use the <TAB> or cursor keys to highlight the help option\n"
"   and press <ENTER>.  You can try <TAB><H> as well.\n"
"\n"
"\n"
"Text Box    (Help Window)\n"
"--------\n"
"o  Use the cursor keys to scroll up/down/left/right.  The VI editor\n"
"   keys h,j,k,l function here as do <SPACE BAR> and <B> for those\n"
"   who are familiar with less and lynx.\n"
"\n"
"o  Press <E>, <X>, <Enter> or <Esc><Esc> to exit.\n"
"\n"
"\n"
"Alternate Configuration Files\n"
"-----------------------------\n"
"Menuconfig supports the use of alternate configuration files for\n"
"those who, for various reasons, find it necessary to switch\n"
"between different configurations.\n"
"\n"
"At the end of the main menu you will find two options.  One is\n"
"for saving the current configuration to a file of your choosing.\n"
"The other option is for loading a previously saved alternate\n"
"configuration.\n"
"\n"
"Even if you don't use alternate configuration files, but you\n"
"find during a Menuconfig session that you have completely messed\n"
"up your settings, you may use the \"Load Alternate...\" option to\n"
"restore your previously saved settings from \".config\" without\n"
"restarting Menuconfig.\n"
"\n"
"Other information\n"
"-----------------\n"
"If you use Menuconfig in an XTERM window make sure you have your\n"
"$TERM variable set to point to a xterm definition which supports color.\n"
"Otherwise, Menuconfig will look rather bad.  Menuconfig will not\n"
"display correctly in a RXVT window because rxvt displays only one\n"
"intensity of color, bright.\n"
"\n"
"Menuconfig will display larger menus on screens or xterms which are\n"
"set to display more than the standard 25 row by 80 column geometry.\n"
"In order for this to work, the \"stty size\" command must be able to\n"
"display the screen's current row and column geometry.  I STRONGLY\n"
"RECOMMEND that you make sure you do NOT have the shell variables\n"
"LINES and COLUMNS exported into your environment.  Some distributions\n"
"export those variables via /etc/profile.  Some ncurses programs can\n"
"become confused when those variables (LINES & COLUMNS) don't reflect\n"
"the true screen size.\n"
"\n"
"Optional personality available\n"
"------------------------------\n"
"If you prefer to have all of the options listed in a single menu, rather\n"
"than the default multimenu hierarchy, run the menuconfig with\n"
"MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
"\n"
"make MENUCONFIG_MODE=single_menu menuconfig\n"
"\n"
"<Enter> will then unroll the appropriate category, or enfold it if it\n"
"is already unrolled.\n"
"\n"
"Note that this mode can eventually be a little more CPU expensive\n"
"(especially with a larger number of unrolled categories) than the\n"
"default mode.\n"
"\n"
"Different color themes available\n"
"--------------------------------\n"
"It is possible to select different color themes using the variable\n"
"MENUCONFIG_COLOR. To select a theme use:\n"
"\n"
"make MENUCONFIG_COLOR=<theme> menuconfig\n"
"\n"
"Available themes are\n"
" mono       => selects colors suitable for monochrome displays\n"
" blackbg    => selects a color scheme with black background\n"
" classic    => theme with blue background. The classic look\n"
" bluetitle  => a LCD friendly version of classic. (default)\n"
"\n"),
menu_instructions[] = N_(
	"Arrow keys navigate the menu.  "
	"<Enter> selects submenus --->.  "
	"Highlighted letters are hotkeys.  "
	"Pressing <Y> includes, <N> excludes, <M> modularizes features.  "
	"Press <Esc><Esc> to exit, <?> for Help, </> for Search.  "
	"Legend: [*] built-in  [ ] excluded  <M> module  < > module capable"),
radiolist_instructions[] = N_(
	"Use the arrow keys to navigate this window or "
	"press the hotkey of the item you wish to select "
	"followed by the <SPACE BAR>. "
	"Press <?> for additional information about this option."),
inputbox_instructions_int[] = N_(
	"Please enter a decimal value. "
	"Fractions will not be accepted.  "
	"Use the <TAB> key to move from the input field to the buttons below it."),
inputbox_instructions_hex[] = N_(
	"Please enter a hexadecimal value. "
	"Use the <TAB> key to move from the input field to the buttons below it."),
inputbox_instructions_string[] = N_(
	"Please enter a string value. "
	"Use the <TAB> key to move from the input field to the buttons below it."),
setmod_text[] = N_(
	"This feature depends on another which has been configured as a module.\n"
	"As a result, this feature will be built as a module."),
load_config_text[] = N_(
	"Enter the name of the configuration file you wish to load.  "
	"Accept the name shown to restore the configuration you "
	"last retrieved.  Leave blank to abort."),
load_config_help[] = N_(
	"\n"
	"For various reasons, one may wish to keep several different\n"
	"configurations available on a single machine.\n"
	"\n"
	"If you have saved a previous configuration in a file other than the\n"
	"default one, entering its name here will allow you to modify that\n"
	"configuration.\n"
	"\n"
	"If you are uncertain, then you have probably never used alternate\n"
	"configuration files. You should therefore leave this blank to abort.\n"),
save_config_text[] = N_(
	"Enter a filename to which this configuration should be saved "
	"as an alternate.  Leave blank to abort."),
save_config_help[] = N_(
	"\n"
	"For various reasons, one may wish to keep different configurations\n"
	"available on a single machine.\n"
	"\n"
	"Entering a file name here will allow you to later retrieve, modify\n"
	"and use the current configuration as an alternate to whatever\n"
	"configuration options you have selected at that time.\n"
	"\n"
	"If you are uncertain what all this means then you should probably\n"
	"leave this blank.\n"),
search_help[] = N_(
	"\n"
	"Search for symbols and display their relations.\n"
	"Regular expressions are allowed.\n"
	"Example: search for \"^FOO\"\n"
	"Result:\n"
	"-----------------------------------------------------------------\n"
	"Symbol: FOO [=m]\n"
	"Prompt: Foo bus is used to drive the bar HW\n"
	"Defined at drivers/pci/Kconfig:47\n"
	"Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
	"Location:\n"
	"  -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
	"    -> PCI support (PCI [=y])\n"
	"      -> PCI access mode (<choice> [=y])\n"
	"Selects: LIBCRC32\n"
	"Selected by: BAR\n"
	"-----------------------------------------------------------------\n"
	"o The line 'Prompt:' shows the text used in the menu structure for\n"
	"  this symbol\n"
	"o The 'Defined at' line tell at what file / line number the symbol\n"
	"  is defined\n"
	"o The 'Depends on:' line tell what symbols needs to be defined for\n"
	"  this symbol to be visible in the menu (selectable)\n"
	"o The 'Location:' lines tell where in the menu structure this symbol\n"
	"  is located\n"
	"    A location followed by a [=y] indicate that this is a selectable\n"
	"    menu item - and current value is displayed inside brackets.\n"
	"o The 'Selects:' line tell what symbol will be automatically\n"
	"  selected if this symbol is selected (y or m)\n"
	"o The 'Selected by' line tell what symbol has selected this symbol\n"
	"\n"
	"Only relevant lines are shown.\n"
	"\n\n"
	"Search examples:\n"
	"Examples: USB	=> find all symbols containing USB\n"
	"          ^USB => find all symbols starting with USB\n"
	"          USB$ => find all symbols ending with USB\n"
	"\n");

static int indent;
static struct menu *current_menu;
static int child_count;
static int single_menu_mode;
static int show_all_options;

static void conf(struct menu *menu);
static void conf_choice(struct menu *menu);
static void conf_string(struct menu *menu);
static void conf_load(void);
static void conf_save(void);
static void show_textbox(const char *title, const char *text, int r, int c);
static void show_helptext(const char *title, const char *text);
static void show_help(struct menu *menu);

static char filename[PATH_MAX+1];
static void set_config_filename(const char *config_filename)
{
	static char menu_backtitle[PATH_MAX+128];
	int size;

	size = snprintf(menu_backtitle, sizeof(menu_backtitle),
	                "%s - %s", config_filename, rootmenu.prompt->text);
	if (size >= sizeof(menu_backtitle))
		menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
	set_dialog_backtitle(menu_backtitle);

	size = snprintf(filename, sizeof(filename), "%s", config_filename);
	if (size >= sizeof(filename))
		filename[sizeof(filename)-1] = '\0';
}


static void search_conf(void)
{
	struct symbol **sym_arr;
	struct gstr res;
	char *dialog_input;
	int dres;
again:
	dialog_clear();
	dres = dialog_inputbox(_("Search Configuration Parameter"),
			      _("Enter " CONFIG_ " (sub)string to search for "
				"(with or without \"" CONFIG_ "\")"),
			      10, 75, "");
	switch (dres) {
	case 0:
		break;
	case 1:
		show_helptext(_("Search Configuration"), search_help);
		goto again;
	default:
		return;
	}

	/* strip the prefix if necessary */
	dialog_input = dialog_input_result;
	if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
		dialog_input += strlen(CONFIG_);

	sym_arr = sym_re_search(dialog_input);
	res = get_relations_str(sym_arr);
	free(sym_arr);
	show_textbox(_("Search Results"), str_get(&res), 0, 0);
	str_free(&res);
}

static void build_conf(struct menu *menu)
{
	struct symbol *sym;
	struct property *prop;
	struct menu *child;
	int type, tmp, doint = 2;
	tristate val;
	char ch;
	bool visible;

	/*
	 * note: menu_is_visible() has side effect that it will
	 * recalc the value of the symbol.
	 */
	visible = menu_is_visible(menu);
	if (show_all_options && !menu_has_prompt(menu))
		return;
	else if (!show_all_options && !visible)
		return;

	sym = menu->sym;
	prop = menu->prompt;
	if (!sym) {
		if (prop && menu != current_menu) {
			const char *prompt = menu_get_prompt(menu);
			switch (prop->type) {
			case P_MENU:
				child_count++;
				prompt = _(prompt);
				if (single_menu_mode) {
					item_make("%s%*c%s",
						  menu->data ? "-->" : "++>",
						  indent + 1, ' ', prompt);
				} else
					item_make("   %*c%s  --->", indent + 1, ' ', prompt);

				item_set_tag('m');
				item_set_data(menu);
				if (single_menu_mode && menu->data)
					goto conf_childs;
				return;
			case P_COMMENT:
				if (prompt) {
					child_count++;
					item_make("   %*c*** %s ***", indent + 1, ' ', _(prompt));
					item_set_tag(':');
					item_set_data(menu);
				}
				break;
			default:
				if (prompt) {
					child_count++;
					item_make("---%*c%s", indent + 1, ' ', _(prompt));
					item_set_tag(':');
					item_set_data(menu);
				}
			}
		} else
			doint = 0;
		goto conf_childs;
	}

	type = sym_get_type(sym);
	if (sym_is_choice(sym)) {
		struct symbol *def_sym = sym_get_choice_value(sym);
		struct menu *def_menu = NULL;

		child_count++;
		for (child = menu->list; child; child = child->next) {
			if (menu_is_visible(child) && child->sym == def_sym)
				def_menu = child;
		}

		val = sym_get_tristate_value(sym);
		if (sym_is_changable(sym)) {
			switch (type) {
			case S_BOOLEAN:
				item_make("[%c]", val == no ? ' ' : '*');
				break;
			case S_TRISTATE:
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				item_make("<%c>", ch);
				break;
			}
			item_set_tag('t');
			item_set_data(menu);
		} else {
			item_make("   ");
			item_set_tag(def_menu ? 't' : ':');
			item_set_data(menu);
		}

		item_add_str("%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
		if (val == yes) {
			if (def_menu) {
				item_add_str(" (%s)", _(menu_get_prompt(def_menu)));
				item_add_str("  --->");
				if (def_menu->list) {
					indent += 2;
					build_conf(def_menu);
					indent -= 2;
				}
			}
			return;
		}
	} else {
		if (menu == current_menu) {
			item_make("---%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
			item_set_tag(':');
			item_set_data(menu);
			goto conf_childs;
		}
		child_count++;
		val = sym_get_tristate_value(sym);
		if (sym_is_choice_value(sym) && val == yes) {
			item_make("   ");
			item_set_tag(':');
			item_set_data(menu);
		} else {
			switch (type) {
			case S_BOOLEAN:
				if (sym_is_changable(sym))
					item_make("[%c]", val == no ? ' ' : '*');
				else
					item_make("-%c-", val == no ? ' ' : '*');
				item_set_tag('t');
				item_set_data(menu);
				break;
			case S_TRISTATE:
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				if (sym_is_changable(sym)) {
					if (sym->rev_dep.tri == mod)
						item_make("{%c}", ch);
					else
						item_make("<%c>", ch);
				} else
					item_make("-%c-", ch);
				item_set_tag('t');
				item_set_data(menu);
				break;
			default:
				tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
				item_make("(%s)", sym_get_string_value(sym));
				tmp = indent - tmp + 4;
				if (tmp < 0)
					tmp = 0;
				item_add_str("%*c%s%s", tmp, ' ', _(menu_get_prompt(menu)),
					     (sym_has_value(sym) || !sym_is_changable(sym)) ?
					     "" : _(" (NEW)"));
				item_set_tag('s');
				item_set_data(menu);
				goto conf_childs;
			}
		}
		item_add_str("%*c%s%s", indent + 1, ' ', _(menu_get_prompt(menu)),
			  (sym_has_value(sym) || !sym_is_changable(sym)) ?
			  "" : _(" (NEW)"));
		if (menu->prompt->type == P_MENU) {
			item_add_str("  --->");
			return;
		}
	}

conf_childs:
	indent += doint;
	for (child = menu->list; child; child = child->next)
		build_conf(child);
	indent -= doint;
}

static void conf(struct menu *menu)
{
	struct menu *submenu;
	const char *prompt = menu_get_prompt(menu);
	struct symbol *sym;
	struct menu *active_menu = NULL;
	int res;
	int s_scroll = 0;

	while (1) {
		item_reset();
		current_menu = menu;
		build_conf(menu);
		if (!child_count)
			break;
		if (menu == &rootmenu) {
			item_make("--- ");
			item_set_tag(':');
			item_make(_("    Load an Alternate Configuration File"));
			item_set_tag('L');
			item_make(_("    Save an Alternate Configuration File"));
			item_set_tag('S');
		}
		dialog_clear();
		res = dialog_menu(prompt ? _(prompt) : _("Main Menu"),
				  _(menu_instructions),
				  active_menu, &s_scroll);
		if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
			break;
		if (!item_activate_selected())
			continue;
		if (!item_tag())
			continue;

		submenu = item_data();
		active_menu = item_data();
		if (submenu)
			sym = submenu->sym;
		else
			sym = NULL;

		switch (res) {
		case 0:
			switch (item_tag()) {
			case 'm':
				if (single_menu_mode)
					submenu->data = (void *) (long) !submenu->data;
				else
					conf(submenu);
				break;
			case 't':
				if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
					conf_choice(submenu);
				else if (submenu->prompt->type == P_MENU)
					conf(submenu);
				break;
			case 's':
				conf_string(submenu);
				break;
			case 'L':
				conf_load();
				break;
			case 'S':
				conf_save();
				break;
			}
			break;
		case 2:
			if (sym)
				show_help(submenu);
			else
				show_helptext(_("README"), _(mconf_readme));
			break;
		case 3:
			if (item_is_tag('t')) {
				if (sym_set_tristate_value(sym, yes))
					break;
				if (sym_set_tristate_value(sym, mod))
					show_textbox(NULL, setmod_text, 6, 74);
			}
			break;
		case 4:
			if (item_is_tag('t'))
				sym_set_tristate_value(sym, no);
			break;
		case 5:
			if (item_is_tag('t'))
				sym_set_tristate_value(sym, mod);
			break;
		case 6:
			if (item_is_tag('t'))
				sym_toggle_tristate_value(sym);
			else if (item_is_tag('m'))
				conf(submenu);
			break;
		case 7:
			search_conf();
			break;
		case 8:
			show_all_options = !show_all_options;
			break;
		}
	}
}

static void show_textbox(const char *title, const char *text, int r, int c)
{
	dialog_clear();
	dialog_textbox(title, text, r, c);
}

static void show_helptext(const char *title, const char *text)
{
	show_textbox(title, text, 0, 0);
}

static void show_help(struct menu *menu)
{
	struct gstr help = str_new();

	help.max_width = getmaxx(stdscr) - 10;
	menu_get_ext_help(menu, &help);

	show_helptext(_(menu_get_prompt(menu)), str_get(&help));
	str_free(&help);
}

static void conf_choice(struct menu *menu)
{
	const char *prompt = _(menu_get_prompt(menu));
	struct menu *child;
	struct symbol *active;

	active = sym_get_choice_value(menu->sym);
	while (1) {
		int res;
		int selected;
		item_reset();

		current_menu = menu;
		for (child = menu->list; child; child = child->next) {
			if (!menu_is_visible(child))
				continue;
			if (child->sym)
				item_make("%s", _(menu_get_prompt(child)));
			else {
				item_make("*** %s ***", _(menu_get_prompt(child)));
				item_set_tag(':');
			}
			item_set_data(child);
			if (child->sym == active)
				item_set_selected(1);
			if (child->sym == sym_get_choice_value(menu->sym))
				item_set_tag('X');
		}
		dialog_clear();
		res = dialog_checklist(prompt ? _(prompt) : _("Main Menu"),
					_(radiolist_instructions),
					 15, 70, 6);
		selected = item_activate_selected();
		switch (res) {
		case 0:
			if (selected) {
				child = item_data();
				if (!child->sym)
					break;

				sym_set_tristate_value(child->sym, yes);
			}
			return;
		case 1:
			if (selected) {
				child = item_data();
				show_help(child);
				active = child->sym;
			} else
				show_help(menu);
			break;
		case KEY_ESC:
			return;
		case -ERRDISPLAYTOOSMALL:
			return;
		}
	}
}

static void conf_string(struct menu *menu)
{
	const char *prompt = menu_get_prompt(menu);

	while (1) {
		int res;
		const char *heading;

		switch (sym_get_type(menu->sym)) {
		case S_INT:
			heading = _(inputbox_instructions_int);
			break;
		case S_HEX:
			heading = _(inputbox_instructions_hex);
			break;
		case S_STRING:
			heading = _(inputbox_instructions_string);
			break;
		default:
			heading = _("Internal mconf error!");
		}
		dialog_clear();
		res = dialog_inputbox(prompt ? _(prompt) : _("Main Menu"),
				      heading, 10, 75,
				      sym_get_string_value(menu->sym));
		switch (res) {
		case 0:
			if (sym_set_string_value(menu->sym, dialog_input_result))
				return;
			show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
			break;
		case 1:
			show_help(menu);
			break;
		case KEY_ESC:
			return;
		}
	}
}

static void conf_load(void)
{

	while (1) {
		int res;
		dialog_clear();
		res = dialog_inputbox(NULL, load_config_text,
				      11, 55, filename);
		switch(res) {
		case 0:
			if (!dialog_input_result[0])
				return;
			if (!conf_read(dialog_input_result)) {
				set_config_filename(dialog_input_result);
				sym_set_change_count(1);
				return;
			}
			show_textbox(NULL, _("File does not exist!"), 5, 38);
			break;
		case 1:
			show_helptext(_("Load Alternate Configuration"), load_config_help);
			break;
		case KEY_ESC:
			return;
		}
	}
}

static void conf_save(void)
{
	while (1) {
		int res;
		dialog_clear();
		res = dialog_inputbox(NULL, save_config_text,
				      11, 55, filename);
		switch(res) {
		case 0:
			if (!dialog_input_result[0])
				return;
			if (!conf_write(dialog_input_result)) {
				set_config_filename(dialog_input_result);
				return;
			}
			show_textbox(NULL, _("Can't create file!  Probably a nonexistent directory."), 5, 60);
			break;
		case 1:
			show_helptext(_("Save Alternate Configuration"), save_config_help);
			break;
		case KEY_ESC:
			return;
		}
	}
}

int main(int ac, char **av)
{
	int saved_x, saved_y;
	char *mode;
	int res;

	setlocale(LC_ALL, "");
	bindtextdomain(PACKAGE, LOCALEDIR);
	textdomain(PACKAGE);

	conf_parse(av[1]);
	conf_read(NULL);

	mode = getenv("MENUCONFIG_MODE");
	if (mode) {
		if (!strcasecmp(mode, "single_menu"))
			single_menu_mode = 1;
	}

	initscr();

	getyx(stdscr, saved_y, saved_x);
	if (init_dialog(NULL)) {
		fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
		fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
		return 1;
	}

	set_config_filename(conf_get_configname());
	do {
		conf(&rootmenu);
		dialog_clear();
		if (conf_get_changed())
			res = dialog_yesno(NULL,
					   _("Do you wish to save your "
					     "new configuration?\n"
					     "<ESC><ESC> to continue."),
					   6, 60);
		else
			res = -1;
	} while (res == KEY_ESC);
	end_dialog(saved_x, saved_y);

	switch (res) {
	case 0:
		if (conf_write(filename)) {
			fprintf(stderr, _("\n\n"
				"Error while writing of the configuration.\n"
				"Your configuration changes were NOT saved."
				"\n\n"));
			return 1;
		}
		/* fall through */
	case -1:
		printf(_("\n\n"
			"*** End of the configuration.\n"
			"*** Execute 'make' to start the build or try 'make help'."
			"\n\n"));
		break;
	default:
		fprintf(stderr, _("\n\n"
			"Your configuration changes were NOT saved."
			"\n\n"));
	}

	return 0;
}