Initial commit of Kconfig build tool.
[seabios.git] / tools / kconfig / nconf.c
diff --git a/tools/kconfig/nconf.c b/tools/kconfig/nconf.c
new file mode 100644 (file)
index 0000000..db56377
--- /dev/null
@@ -0,0 +1,1561 @@
+/*
+ * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * 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"
+"--------\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"
+"  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"
+"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 use <Enter> or <Space>. Goto submenu by \n"
+"   pressing <Enter> of <right-arrow>. Use <Esc> or <left-arrow> to go back.\n"
+"   Submenus are designated by \"--->\".\n"
+"\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"
+"\n"
+"o  To exit a menu use the just press <ESC> <F5> <F8> or <left-arrow>.\n"
+"\n"
+"o  To get help with an item, press <F1>\n"
+"   Shortcut: Press <h> or <?>.\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, press <F1>\n"
+"   Shortcut: Press <H> or <?>.\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, press <F1>.\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> for those\n"
+"   who are familiar with less and lynx.\n"
+"\n"
+"o  Press <Enter>, <F1>, <F5>, <F7> or <Esc> to exit.\n"
+"\n"
+"\n"
+"Alternate Configuration Files\n"
+"-----------------------------\n"
+"nconfig 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 nconfig 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 nconfig.\n"
+"\n"
+"Other information\n"
+"-----------------\n"
+"If you use nconfig in an XTERM window make sure you have your\n"
+"$TERM variable set to point to a xterm definition which supports color.\n"
+"Otherwise, nconfig will look rather bad.  nconfig will not\n"
+"display correctly in a RXVT window because rxvt displays only one\n"
+"intensity of color, bright.\n"
+"\n"
+"nconfig 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 nconfig with NCONFIG_MODE\n"
+"environment variable set to single_menu. Example:\n"
+"\n"
+"make NCONFIG_MODE=single_menu nconfig\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"),
+menu_no_f_instructions[] = N_(
+" You do not have function keys support. Please follow the\n"
+" following 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> or <left-arrow> to go back one menu,\n"
+" <?> or <h> for Help, </> for Search.\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"),
+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>, <F5> or <left-arrow> to go back one menu,\n"
+" <?>, <F1> or <h> for Help, </> for Search.\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_(
+" Use the arrow keys to navigate this window or\n"
+" press the hotkey of the item you wish to select\n"
+" followed by the <SPACE BAR>.\n"
+" Press <?>, <F1> or <h> for additional information about this option.\n"),
+inputbox_instructions_int[] = N_(
+"Please enter a decimal value.\n"
+"Fractions will not be accepted.\n"
+"Press <RETURN> to accept, <ESC> to cancel."),
+inputbox_instructions_hex[] = N_(
+"Please enter a hexadecimal value.\n"
+"Press <RETURN> to accept, <ESC> to cancel."),
+inputbox_instructions_string[] = N_(
+"Please enter a string value.\n"
+"Press <RETURN> to accept, <ESC> to cancel."),
+setmod_text[] = N_(
+"This feature depends on another which\n"
+"has been configured as a module.\n"
+"As a result, this feature will be built as a module."),
+nohelp_text[] = N_(
+"There is no help available for this option.\n"),
+load_config_text[] = N_(
+"Enter the name of the configuration file you wish to load.\n"
+"Accept the name shown to restore the configuration you\n"
+"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 therefor leave this blank to abort.\n"),
+save_config_text[] = N_(
+"Enter a filename to which this configuration should be saved\n"
+"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. Regular expressions\n"
+"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");
+
+struct mitem {
+       char str[256];
+       char tag;
+       void *usrptr;
+       int is_visible;
+};
+
+#define MAX_MENU_ITEMS 4096
+static int show_all_items;
+static int indent;
+static struct menu *current_menu;
+static int child_count;
+static int single_menu_mode;
+/* the window in which all information appears */
+static WINDOW *main_window;
+/* the largest size of the menu window */
+static int mwin_max_lines;
+static int mwin_max_cols;
+/* the window in which we show option buttons */
+static MENU *curses_menu;
+static ITEM *curses_menu_items[MAX_MENU_ITEMS];
+static struct mitem k_menu_items[MAX_MENU_ITEMS];
+static int items_num;
+static int global_exit;
+/* the currently selected button */
+const char *current_instructions = menu_instructions;
+
+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_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);
+static void handle_f2(int *key, struct menu *current_item);
+static void handle_f3(int *key, struct menu *current_item);
+static void handle_f4(int *key, struct menu *current_item);
+static void handle_f5(int *key, struct menu *current_item);
+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;
+       const char *func;
+       function_key key;
+       function_key_handler_t handler;
+};
+
+static const int function_keys_num = 9;
+struct function_keys function_keys[] = {
+       {
+               .key_str = "F1",
+               .func = "Help",
+               .key = F_HELP,
+               .handler = handle_f1,
+       },
+       {
+               .key_str = "F2",
+               .func = "Sym Info",
+               .key = F_SYMBOL,
+               .handler = handle_f2,
+       },
+       {
+               .key_str = "F3",
+               .func = "Insts",
+               .key = F_INSTS,
+               .handler = handle_f3,
+       },
+       {
+               .key_str = "F4",
+               .func = "Config",
+               .key = F_CONF,
+               .handler = handle_f4,
+       },
+       {
+               .key_str = "F5",
+               .func = "Back",
+               .key = F_BACK,
+               .handler = handle_f5,
+       },
+       {
+               .key_str = "F6",
+               .func = "Save",
+               .key = F_SAVE,
+               .handler = handle_f6,
+       },
+       {
+               .key_str = "F7",
+               .func = "Load",
+               .key = F_LOAD,
+               .handler = handle_f7,
+       },
+       {
+               .key_str = "F8",
+               .func = "Sym Search",
+               .key = F_SEARCH,
+               .handler = handle_f8,
+       },
+       {
+               .key_str = "F9",
+               .func = "Exit",
+               .key = F_EXIT,
+               .handler = handle_f9,
+       },
+};
+
+static void print_function_line(void)
+{
+       int i;
+       int offset = 1;
+       const int skip = 1;
+
+       for (i = 0; i < function_keys_num; i++) {
+               wattrset(main_window, attributes[FUNCTION_HIGHLIGHT]);
+               mvwprintw(main_window, LINES-3, offset,
+                               "%s",
+                               function_keys[i].key_str);
+               wattrset(main_window, attributes[FUNCTION_TEXT]);
+               offset += strlen(function_keys[i].key_str);
+               mvwprintw(main_window, LINES-3,
+                               offset, "%s",
+                               function_keys[i].func);
+               offset += strlen(function_keys[i].func) + skip;
+       }
+       wattrset(main_window, attributes[NORMAL]);
+}
+
+/* help */
+static void handle_f1(int *key, struct menu *current_item)
+{
+       show_scroll_win(main_window,
+                       _("README"), _(nconf_readme));
+       return;
+}
+
+/* symbole help */
+static void handle_f2(int *key, struct menu *current_item)
+{
+       show_help(current_item);
+       return;
+}
+
+/* instructions */
+static void handle_f3(int *key, struct menu *current_item)
+{
+       show_scroll_win(main_window,
+                       _("Instructions"),
+                       _(current_instructions));
+       return;
+}
+
+/* config */
+static void handle_f4(int *key, struct menu *current_item)
+{
+       int res = btn_dialog(main_window,
+                       _("Show all symbols?"),
+                       2,
+                       "   <Show All>   ",
+                       "<Don't show all>");
+       if (res == 0)
+               show_all_items = 1;
+       else if (res == 1)
+               show_all_items = 0;
+
+       return;
+}
+
+/* back */
+static void handle_f5(int *key, struct menu *current_item)
+{
+       *key = KEY_LEFT;
+       return;
+}
+
+/* save */
+static void handle_f6(int *key, struct menu *current_item)
+{
+       conf_save();
+       return;
+}
+
+/* load */
+static void handle_f7(int *key, struct menu *current_item)
+{
+       conf_load();
+       return;
+}
+
+/* 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;
+}
+
+/* return != 0 to indicate the key was handles */
+static int process_special_keys(int *key, struct menu *menu)
+{
+       int i;
+
+       if (*key == KEY_RESIZE) {
+               setup_windows();
+               return 1;
+       }
+
+       for (i = 0; i < function_keys_num; i++) {
+               if (*key == KEY_F(function_keys[i].key) ||
+                   *key == '0' + function_keys[i].key){
+                       function_keys[i].handler(key, menu);
+                       return 1;
+               }
+       }
+
+       return 0;
+}
+
+static void clean_items(void)
+{
+       int i;
+       for (i = 0; curses_menu_items[i]; i++)
+               free_item(curses_menu_items[i]);
+       bzero(curses_menu_items, sizeof(curses_menu_items));
+       bzero(k_menu_items, sizeof(k_menu_items));
+       items_num = 0;
+}
+
+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)
+{
+       int match_start = item_index(current_item(curses_menu));
+       int index;
+
+       if (flag == FIND_NEXT_MATCH_DOWN)
+               ++match_start;
+       else if (flag == FIND_NEXT_MATCH_UP)
+               --match_start;
+
+       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;
+       }
+}
+
+/* Make a new item. */
+static void item_make(struct menu *menu, char tag, const char *fmt, ...)
+{
+       va_list ap;
+
+       if (items_num > MAX_MENU_ITEMS-1)
+               return;
+
+       bzero(&k_menu_items[items_num], sizeof(k_menu_items[0]));
+       k_menu_items[items_num].tag = tag;
+       k_menu_items[items_num].usrptr = menu;
+       if (menu != NULL)
+               k_menu_items[items_num].is_visible =
+                       menu_is_visible(menu);
+       else
+               k_menu_items[items_num].is_visible = 1;
+
+       va_start(ap, fmt);
+       vsnprintf(k_menu_items[items_num].str,
+                 sizeof(k_menu_items[items_num].str),
+                 fmt, ap);
+       va_end(ap);
+
+       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,
+                       k_menu_items[items_num].str);
+       set_item_userptr(curses_menu_items[items_num],
+                       &k_menu_items[items_num]);
+       /*
+       if (!k_menu_items[items_num].is_visible)
+               item_opts_off(curses_menu_items[items_num], O_SELECTABLE);
+       */
+
+       items_num++;
+       curses_menu_items[items_num] = NULL;
+}
+
+/* very hackish. adds a string to the last item added */
+static void item_add_str(const char *fmt, ...)
+{
+       va_list ap;
+       int index = items_num-1;
+       char new_str[256];
+       char tmp_str[256];
+
+       if (index < 0)
+               return;
+
+       va_start(ap, fmt);
+       vsnprintf(new_str, sizeof(new_str), fmt, ap);
+       va_end(ap);
+       snprintf(tmp_str, sizeof(tmp_str), "%s%s",
+                       k_menu_items[index].str, new_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(
+                       k_menu_items[index].str,
+                       k_menu_items[index].str);
+       set_item_userptr(curses_menu_items[index],
+                       &k_menu_items[index]);
+}
+
+/* get the tag of the currently selected item */
+static char item_tag(void)
+{
+       ITEM *cur;
+       struct mitem *mcur;
+
+       cur = current_item(curses_menu);
+       if (cur == NULL)
+               return 0;
+       mcur = (struct mitem *) item_userptr(cur);
+       return mcur->tag;
+}
+
+static int curses_item_index(void)
+{
+       return  item_index(current_item(curses_menu));
+}
+
+static void *item_data(void)
+{
+       ITEM *cur;
+       struct mitem *mcur;
+
+       cur = current_item(curses_menu);
+       if (!cur)
+               return NULL;
+       mcur = (struct mitem *) item_userptr(cur);
+       return mcur->usrptr;
+
+}
+
+static int item_is_tag(char tag)
+{
+       return item_tag() == tag;
+}
+
+static char filename[PATH_MAX+1];
+static char menu_backtitle[PATH_MAX+128];
+static const char *set_config_filename(const char *config_filename)
+{
+       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';
+
+       size = snprintf(filename, sizeof(filename), "%s", config_filename);
+       if (size >= sizeof(filename))
+               filename[sizeof(filename)-1] = '\0';
+       return menu_backtitle;
+}
+
+/* return = 0 means we are successful.
+ * -1 means go on doing what you were doing
+ */
+static int do_exit(void)
+{
+       int res;
+       if (!conf_get_changed()) {
+               global_exit = 1;
+               return 0;
+       }
+       res = btn_dialog(main_window,
+                       _("Do you wish to save your new configuration?\n"
+                               "<ESC> to cancel and resume nconfig."),
+                       2,
+                       "   <save>   ",
+                       "<don't save>");
+       if (res == KEY_EXIT) {
+               global_exit = 0;
+               return -1;
+       }
+
+       /* if we got here, the user really wants to exit */
+       switch (res) {
+       case 0:
+               res = conf_write(filename);
+               if (res)
+                       btn_dialog(
+                               main_window,
+                               _("Error during writing of configuration.\n"
+                                 "Your configuration changes were NOT saved."),
+                                 1,
+                                 "<OK>");
+               break;
+       default:
+               btn_dialog(
+                       main_window,
+                       _("Your configuration changes were NOT saved."),
+                       1,
+                       "<OK>");
+               break;
+       }
+       global_exit = 1;
+       return 0;
+}
+
+
+static void search_conf(void)
+{
+       struct symbol **sym_arr;
+       struct gstr res;
+       char dialog_input_result[100];
+       char *dialog_input;
+       int dres;
+again:
+       dres = dialog_inputbox(main_window,
+                       _("Search Configuration Parameter"),
+                       _("Enter " CONFIG_ " (sub)string to search for "
+                               "(with or without \"" CONFIG_ "\")"),
+                       "", dialog_input_result, 99);
+       switch (dres) {
+       case 0:
+               break;
+       case 1:
+               show_scroll_win(main_window,
+                               _("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_scroll_win(main_window,
+                       _("Search Results"), str_get(&res));
+       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;
+
+       if (!menu || (!show_all_items && !menu_is_visible(menu)))
+               return;
+
+       sym = menu->sym;
+       prop = menu->prompt;
+       if (!sym) {
+               if (prop && menu != current_menu) {
+                       const char *prompt = menu_get_prompt(menu);
+                       enum prop_type ptype;
+                       ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
+                       switch (ptype) {
+                       case P_MENU:
+                               child_count++;
+                               prompt = _(prompt);
+                               if (single_menu_mode) {
+                                       item_make(menu, 'm',
+                                               "%s%*c%s",
+                                               menu->data ? "-->" : "++>",
+                                               indent + 1, ' ', prompt);
+                               } else
+                                       item_make(menu, 'm',
+                                               "   %*c%s  --->",
+                                               indent + 1,
+                                               ' ', prompt);
+
+                               if (single_menu_mode && menu->data)
+                                       goto conf_childs;
+                               return;
+                       case P_COMMENT:
+                               if (prompt) {
+                                       child_count++;
+                                       item_make(menu, ':',
+                                               "   %*c*** %s ***",
+                                               indent + 1, ' ',
+                                               _(prompt));
+                               }
+                               break;
+                       default:
+                               if (prompt) {
+                                       child_count++;
+                                       item_make(menu, ':', "---%*c%s",
+                                               indent + 1, ' ',
+                                               _(prompt));
+                               }
+                       }
+               } 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(menu, 't', "[%c]",
+                                               val == no ? ' ' : '*');
+                               break;
+                       case S_TRISTATE:
+                               switch (val) {
+                               case yes:
+                                       ch = '*';
+                                       break;
+                               case mod:
+                                       ch = 'M';
+                                       break;
+                               default:
+                                       ch = ' ';
+                                       break;
+                               }
+                               item_make(menu, 't', "<%c>", ch);
+                               break;
+                       }
+               } else {
+                       item_make(menu, def_menu ? 't' : ':', "   ");
+               }
+
+               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(menu, ':',
+                               "---%*c%s", indent + 1,
+                               ' ', _(menu_get_prompt(menu)));
+                       goto conf_childs;
+               }
+               child_count++;
+               val = sym_get_tristate_value(sym);
+               if (sym_is_choice_value(sym) && val == yes) {
+                       item_make(menu, ':', "   ");
+               } else {
+                       switch (type) {
+                       case S_BOOLEAN:
+                               if (sym_is_changable(sym))
+                                       item_make(menu, 't', "[%c]",
+                                               val == no ? ' ' : '*');
+                               else
+                                       item_make(menu, 't', "-%c-",
+                                               val == no ? ' ' : '*');
+                               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(menu,
+                                                       't', "{%c}", ch);
+                                       else
+                                               item_make(menu,
+                                                       't', "<%c>", ch);
+                               } else
+                                       item_make(menu, 't', "-%c-", ch);
+                               break;
+                       default:
+                               tmp = 2 + strlen(sym_get_string_value(sym));
+                               item_make(menu, 's', "    (%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)"));
+                               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 && 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 reset_menu(void)
+{
+       unpost_menu(curses_menu);
+       clean_items();
+}
+
+/* adjust the menu to show this item.
+ * prefer not to scroll the menu if possible*/
+static void center_item(int selected_index, int *last_top_row)
+{
+       int toprow;
+
+       set_top_row(curses_menu, *last_top_row);
+       toprow = top_row(curses_menu);
+       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]);
+       *last_top_row = toprow;
+       post_menu(curses_menu);
+       refresh_all_windows(main_window);
+}
+
+/* this function assumes reset_menu has been called before */
+static void show_menu(const char *prompt, const char *instructions,
+               int selected_index, int *last_top_row)
+{
+       int maxx, maxy;
+       WINDOW *menu_window;
+
+       current_instructions = instructions;
+
+       clear();
+       wattrset(main_window, attributes[NORMAL]);
+       print_in_middle(stdscr, 1, 0, COLS,
+                       menu_backtitle,
+                       attributes[MAIN_HEADING]);
+
+       wattrset(main_window, attributes[MAIN_MENU_BOX]);
+       box(main_window, 0, 0);
+       wattrset(main_window, attributes[MAIN_MENU_HEADING]);
+       mvwprintw(main_window, 0, 3, " %s ", prompt);
+       wattrset(main_window, attributes[NORMAL]);
+
+       set_menu_items(curses_menu, curses_menu_items);
+
+       /* 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;
+       menu_window = derwin(main_window,
+                       maxy,
+                       maxx,
+                       2,
+                       (mwin_max_cols-maxx)/2);
+       keypad(menu_window, TRUE);
+       set_menu_win(curses_menu, menu_window);
+       set_menu_sub(curses_menu, menu_window);
+
+       /* must reassert this after changing items, otherwise returns to a
+        * default of 16
+        */
+       set_menu_format(curses_menu, maxy, 1);
+       center_item(selected_index, last_top_row);
+       set_menu_format(curses_menu, maxy, 1);
+
+       print_function_line();
+
+       /* Post the menu */
+       post_menu(curses_menu);
+       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)
+{
+       struct menu *submenu = 0;
+       const char *prompt = menu_get_prompt(menu);
+       struct symbol *sym;
+       struct menu *active_menu = NULL;
+       int res;
+       int current_index = 0;
+       int last_top_row = 0;
+       struct match_state match_state = {
+               .in_search = 0,
+               .match_direction = MATCH_TINKER_PATTERN_DOWN,
+               .pattern = "",
+       };
+
+       while (!global_exit) {
+               reset_menu();
+               current_menu = menu;
+               build_conf(menu);
+               if (!child_count)
+                       break;
+
+               show_menu(prompt ? _(prompt) : _("Main Menu"),
+                               _(menu_instructions),
+                               current_index, &last_top_row);
+               keypad((menu_win(curses_menu)), TRUE);
+               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, &current_index) == 0) {
+                               if (current_index != -1)
+                                       center_item(current_index,
+                                                   &last_top_row);
+                               continue;
+                       }
+                       if (process_special_keys(&res,
+                                               (struct menu *) item_data()))
+                               break;
+                       switch (res) {
+                       case KEY_DOWN:
+                               menu_driver(curses_menu, REQ_DOWN_ITEM);
+                               break;
+                       case KEY_UP:
+                               menu_driver(curses_menu, REQ_UP_ITEM);
+                               break;
+                       case KEY_NPAGE:
+                               menu_driver(curses_menu, REQ_SCR_DPAGE);
+                               break;
+                       case KEY_PPAGE:
+                               menu_driver(curses_menu, REQ_SCR_UPAGE);
+                               break;
+                       case KEY_HOME:
+                               menu_driver(curses_menu, REQ_FIRST_ITEM);
+                               break;
+                       case KEY_END:
+                               menu_driver(curses_menu, REQ_LAST_ITEM);
+                               break;
+                       case 'h':
+                       case '?':
+                               show_help((struct menu *) item_data());
+                               break;
+                       }
+                       if (res == 10 || res == 27 ||
+                               res == 32 || res == 'n' || res == 'y' ||
+                               res == KEY_LEFT || res == KEY_RIGHT ||
+                               res == 'm')
+                               break;
+                       refresh_all_windows(main_window);
+               }
+
+               refresh_all_windows(main_window);
+               /* if ESC or left*/
+               if (res == 27 || (menu != &rootmenu && res == KEY_LEFT))
+                       break;
+
+               /* remember location in the menu */
+               last_top_row = top_row(curses_menu);
+               current_index = curses_item_index();
+
+               if (!item_tag())
+                       continue;
+
+               submenu = (struct menu *) item_data();
+               active_menu = (struct menu *)item_data();
+               if (!submenu || !menu_is_visible(submenu))
+                       continue;
+               if (submenu)
+                       sym = submenu->sym;
+               else
+                       sym = NULL;
+
+               switch (res) {
+               case ' ':
+                       if (item_is_tag('t'))
+                               sym_toggle_tristate_value(sym);
+                       else if (item_is_tag('m'))
+                               conf(submenu);
+                       break;
+               case KEY_RIGHT:
+               case 10: /* ENTER WAS PRESSED */
+                       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 &&
+                                        submenu->prompt->type == P_MENU)
+                                       conf(submenu);
+                               else if (res == 10)
+                                       sym_toggle_tristate_value(sym);
+                               break;
+                       case 's':
+                               conf_string(submenu);
+                               break;
+                       }
+                       break;
+               case 'y':
+                       if (item_is_tag('t')) {
+                               if (sym_set_tristate_value(sym, yes))
+                                       break;
+                               if (sym_set_tristate_value(sym, mod))
+                                       btn_dialog(main_window, setmod_text, 0);
+                       }
+                       break;
+               case 'n':
+                       if (item_is_tag('t'))
+                               sym_set_tristate_value(sym, no);
+                       break;
+               case 'm':
+                       if (item_is_tag('t'))
+                               sym_set_tristate_value(sym, mod);
+                       break;
+               }
+       }
+}
+
+static void conf_message_callback(const char *fmt, va_list ap)
+{
+       char buf[1024];
+
+       vsnprintf(buf, sizeof(buf), fmt, ap);
+       btn_dialog(main_window, buf, 1, "<OK>");
+}
+
+static void show_help(struct menu *menu)
+{
+       struct gstr help = str_new();
+
+       if (menu && menu->sym && menu_has_help(menu)) {
+               if (menu->sym->name) {
+                       str_printf(&help, "%s%s:\n\n", CONFIG_, menu->sym->name);
+                       str_append(&help, _(menu_get_help(menu)));
+                       str_append(&help, "\n");
+                       get_symbol_str(&help, menu->sym);
+               } else {
+                       str_append(&help, _(menu_get_help(menu)));
+               }
+       } else {
+               str_append(&help, nohelp_text);
+       }
+       show_scroll_win(main_window, _(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 = 0;
+       struct symbol *active;
+       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. */
+       while (!global_exit) {
+               reset_menu();
+
+               for (i = 0, child = menu->list; child; child = child->next) {
+                       if (!show_all_items && !menu_is_visible(child))
+                               continue;
+
+                       if (child->sym == sym_get_choice_value(menu->sym))
+                               item_make(child, ':', "<X> %s",
+                                               _(menu_get_prompt(child)));
+                       else if (child->sym)
+                               item_make(child, ':', "    %s",
+                                               _(menu_get_prompt(child)));
+                       else
+                               item_make(child, ':', "*** %s ***",
+                                               _(menu_get_prompt(child)));
+
+                       if (child->sym == active){
+                               last_top_row = top_row(curses_menu);
+                               selected_index = i;
+                       }
+                       i++;
+               }
+               show_menu(prompt ? _(prompt) : _("Choice Menu"),
+                               _(radiolist_instructions),
+                               selected_index,
+                               &last_top_row);
+               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()))
+                               break;
+                       switch (res) {
+                       case KEY_DOWN:
+                               menu_driver(curses_menu, REQ_DOWN_ITEM);
+                               break;
+                       case KEY_UP:
+                               menu_driver(curses_menu, REQ_UP_ITEM);
+                               break;
+                       case KEY_NPAGE:
+                               menu_driver(curses_menu, REQ_SCR_DPAGE);
+                               break;
+                       case KEY_PPAGE:
+                               menu_driver(curses_menu, REQ_SCR_UPAGE);
+                               break;
+                       case KEY_HOME:
+                               menu_driver(curses_menu, REQ_FIRST_ITEM);
+                               break;
+                       case KEY_END:
+                               menu_driver(curses_menu, REQ_LAST_ITEM);
+                               break;
+                       case 'h':
+                       case '?':
+                               show_help((struct menu *) item_data());
+                               break;
+                       }
+                       if (res == 10 || res == 27 || res == ' ' ||
+                                       res == KEY_LEFT){
+                               break;
+                       }
+                       refresh_all_windows(main_window);
+               }
+               /* if ESC or left */
+               if (res == 27 || res == KEY_LEFT)
+                       break;
+
+               child = item_data();
+               if (!child || !menu_is_visible(child) || !child->sym)
+                       continue;
+               switch (res) {
+               case ' ':
+               case  10:
+               case KEY_RIGHT:
+                       sym_set_tristate_value(child->sym, yes);
+                       return;
+               case 'h':
+               case '?':
+                       show_help(child);
+                       active = child->sym;
+                       break;
+               case KEY_EXIT:
+                       return;
+               }
+       }
+}
+
+static void conf_string(struct menu *menu)
+{
+       const char *prompt = menu_get_prompt(menu);
+       char dialog_input_result[256];
+
+       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 nconf error!");
+               }
+               res = dialog_inputbox(main_window,
+                               prompt ? _(prompt) : _("Main Menu"),
+                               heading,
+                               sym_get_string_value(menu->sym),
+                               dialog_input_result,
+                               sizeof(dialog_input_result));
+               switch (res) {
+               case 0:
+                       if (sym_set_string_value(menu->sym,
+                                               dialog_input_result))
+                               return;
+                       btn_dialog(main_window,
+                               _("You have made an invalid entry."), 0);
+                       break;
+               case 1:
+                       show_help(menu);
+                       break;
+               case KEY_EXIT:
+                       return;
+               }
+       }
+}
+
+static void conf_load(void)
+{
+       char dialog_input_result[256];
+       while (1) {
+               int res;
+               res = dialog_inputbox(main_window,
+                               NULL, load_config_text,
+                               filename,
+                               dialog_input_result,
+                               sizeof(dialog_input_result));
+               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;
+                       }
+                       btn_dialog(main_window, _("File does not exist!"), 0);
+                       break;
+               case 1:
+                       show_scroll_win(main_window,
+                                       _("Load Alternate Configuration"),
+                                       load_config_help);
+                       break;
+               case KEY_EXIT:
+                       return;
+               }
+       }
+}
+
+static void conf_save(void)
+{
+       char dialog_input_result[256];
+       while (1) {
+               int res;
+               res = dialog_inputbox(main_window,
+                               NULL, save_config_text,
+                               filename,
+                               dialog_input_result,
+                               sizeof(dialog_input_result));
+               switch (res) {
+               case 0:
+                       if (!dialog_input_result[0])
+                               return;
+                       res = conf_write(dialog_input_result);
+                       if (!res) {
+                               set_config_filename(dialog_input_result);
+                               return;
+                       }
+                       btn_dialog(main_window, _("Can't create file! "
+                               "Probably a nonexistent directory."),
+                               1, "<OK>");
+                       break;
+               case 1:
+                       show_scroll_win(main_window,
+                               _("Save Alternate Configuration"),
+                               save_config_help);
+                       break;
+               case KEY_EXIT:
+                       return;
+               }
+       }
+}
+
+void setup_windows(void)
+{
+       if (main_window != NULL)
+               delwin(main_window);
+
+       /* set up the menu and menu window */
+       main_window = newwin(LINES-2, COLS-2, 2, 1);
+       keypad(main_window, TRUE);
+       mwin_max_lines = LINES-7;
+       mwin_max_cols = COLS-6;
+
+       /* panels order is from bottom to top */
+       new_panel(main_window);
+}
+
+int main(int ac, char **av)
+{
+       char *mode;
+
+       setlocale(LC_ALL, "");
+       bindtextdomain(PACKAGE, LOCALEDIR);
+       textdomain(PACKAGE);
+
+       conf_parse(av[1]);
+       conf_read(NULL);
+
+       mode = getenv("NCONFIG_MODE");
+       if (mode) {
+               if (!strcasecmp(mode, "single_menu"))
+                       single_menu_mode = 1;
+       }
+
+       /* Initialize curses */
+       initscr();
+       /* set color theme */
+       set_colors();
+
+       cbreak();
+       noecho();
+       keypad(stdscr, TRUE);
+       curs_set(0);
+
+       if (COLS < 75 || LINES < 20) {
+               endwin();
+               printf("Your terminal should have at "
+                       "least 20 lines and 75 columns\n");
+               return 1;
+       }
+
+       notimeout(stdscr, FALSE);
+       ESCDELAY = 1;
+
+       /* set btns menu */
+       curses_menu = new_menu(curses_menu_items);
+       menu_opts_off(curses_menu, O_SHOWDESC);
+       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]);
+       set_menu_grey(curses_menu, attributes[MAIN_MENU_GREY]);
+
+       set_config_filename(conf_get_configname());
+       setup_windows();
+
+       /* check for KEY_FUNC(1) */
+       if (has_key(KEY_F(1)) == FALSE) {
+               show_scroll_win(main_window,
+                               _("Instructions"),
+                               _(menu_no_f_instructions));
+       }
+
+       conf_set_message_callback(conf_message_callback);
+       /* do the work */
+       while (!global_exit) {
+               conf(&rootmenu);
+               if (!global_exit && do_exit() == 0)
+                       break;
+       }
+       /* ok, we are done */
+       unpost_menu(curses_menu);
+       free_menu(curses_menu);
+       delwin(main_window);
+       clear();
+       refresh();
+       endwin();
+       return 0;
+}
+