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fed.c
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/*
* FED - Folding Editor
*
* By Shawn Hargreaves, 1994
*
* See README.TXT for copyright conditions
*
* Startup code and main event loop
*/
#include <ctype.h>
#include <time.h>
#include <limits.h>
#ifdef DJGPP
#include <crt0.h>
#include <sys/exceptn.h>
#endif
#include "fed.h"
char hex_digit[] = "0123456789ABCDEF";
int buffer_count=0; /* the current number of buffers */
BUFFER *buffer[MAX_BUFFERS]; /* buffer[0] is the active one */
int repeat_count=0; /* how many times to repeat function */
int repeat_function=0;
int repeat_key=-1;
int last_function=0; /* previous function */
int exit_flag=0; /* exit code to return to caller */
char *exe_path = NULL; /* stored copy of argv[0] */
char exe_buf[256];
extern int macro_mode;
int valid_word()
{
return (get_state(buffer[0]->c_line, buffer[0]->c_pos) == STATE_WORD);
}
int valid_line()
{
return (get_leading_bytes(buffer[0]->c_line) < buffer[0]->c_line->length);
}
int valid_fold()
{
if (is_selecting(buffer[0]))
return TRUE;
return (get_leading_bytes(buffer[0]->c_line) < buffer[0]->c_line->length);
}
int valid_filename()
{
char b[256];
scan_for_filename(b);
return (b[0] != 0);
}
int valid_block()
{
return (is_selecting(buffer[0]));
}
int valid_paste()
{
int c;
for (c=0; c<buffer_count; c++)
if (buffer[c]->flags & BUF_KILL)
if ((buffer[c]->start->next) || (buffer[c]->start->length > 0))
return TRUE;
return FALSE;
}
int valid_lastpos()
{
return ((remember_filename[0]) && (remember_line > 0));
}
int valid_brace()
{
int c = char_from_line(buffer[0]->c_line, buffer[0]->c_pos);
return (brace_direction(c) != 0);
}
int valid_browse()
{
int c;
for (c=0; c<buffer_count; c++)
if (buffer[c]->flags & BUF_BROWSE)
return TRUE;
return FALSE;
}
int valid_undo()
{
UNDO *undo = buffer[0]->undo;
while ((undo) && (undo->length==0) &&
(undo->cached_operation == UNDO_NOTHING))
undo = undo->next;
return (undo != NULL);
}
int valid_redo()
{
UNDO *redo = buffer[0]->redo;
while ((redo) && (redo->length==0) &&
(redo->cached_operation == UNDO_NOTHING))
redo = redo->next;
return (redo != NULL);
}
/* The function code -> function mapping
*/
FN_MAP fn_map[] =
{
{ fn_char, FN_EDIT | FN_REP, NULL },
/* file menu */
{ fn_open, FN_MOVE, valid_filename },
{ fn_close, 0, NULL },
{ fn_write, 0, NULL },
{ fn_print, 0, NULL },
{ fn_view, 0, NULL },
{ fn_next_file, 0, NULL },
{ fn_quit, 0, NULL },
{ fn_save_all, 0, NULL },
/* edit menu */
{ fn_undo, FN_EDIT | FN_REP | FN_DESEL, valid_undo },
{ fn_redo, FN_EDIT | FN_REP | FN_DESEL, valid_redo },
{ fn_kill_line, FN_EDIT | FN_REP, valid_block },
{ fn_copy, 0, valid_block },
{ fn_yank, FN_MOVE_NS | FN_EDIT | FN_REP, valid_paste },
{ fn_lowcase, FN_MOVE | FN_EDIT | FN_REP | FN_DESEL, valid_word },
{ fn_upcase, FN_MOVE | FN_EDIT | FN_REP | FN_DESEL, valid_word },
{ fn_ascii, FN_MOVE | FN_EDIT, NULL },
{ fn_transpose, FN_MOVE | FN_EDIT | FN_REP | FN_DESEL, NULL },
{ fn_indent, 0, NULL },
{ fn_wordwrap, 0, NULL },
{ fn_reformat, FN_MOVE | FN_EDIT | FN_REP | FN_DESEL, valid_line },
/* search menu */
{ fn_position, FN_MOVE, NULL },
{ fn_goto, 0, NULL },
{ fn_remember, FN_MOVE, NULL },
{ fn_lastpos, 0, valid_lastpos },
{ fn_match, FN_MOVE, valid_brace },
{ fn_search, 0, NULL },
{ fn_grep, FN_DESEL, NULL },
{ fn_browse, FN_MOVE | FN_DESEL, valid_word },
{ fn_browse_next, FN_REP | FN_DESEL, valid_browse },
{ fn_browse_prev, FN_REP | FN_DESEL, valid_browse },
/* misc menu */
{ fn_fold, FN_MOVE_NS, valid_fold },
{ fn_expand, FN_DESEL, NULL },
{ fn_macro_s, 0, NULL },
{ fn_macro_e, 0, NULL },
{ fn_macro_p, FN_REP, NULL },
{ fn_repeat, 0, NULL },
/* tool menu */
{ fn_tool1, 0, NULL },
{ fn_tool2, 0, NULL },
{ fn_tool3, 0, NULL },
{ fn_tool4, 0, NULL },
{ fn_tool5, 0, NULL },
{ fn_tool6, 0, NULL },
{ fn_tool7, 0, NULL },
{ fn_tool8, 0, NULL },
{ fn_tool9, 0, NULL },
{ fn_tool10, 0, NULL },
{ fn_tool11, 0, NULL },
{ fn_tool12, 0, NULL },
{ fn_tool13, 0, NULL },
{ fn_tool14, 0, NULL },
{ fn_tool15, 0, NULL },
{ fn_tool16, 0, NULL },
/* config menu */
{ fn_screen, 0, NULL },
{ fn_srch_mode, 0, NULL },
{ fn_tabsize, 0, NULL },
{ fn_config, 0, NULL },
{ fn_colors, 0, NULL },
{ fn_keymap, 0, NULL },
{ fn_savecfg, 0, NULL },
/* help menu */
{ fn_help, 0, NULL },
{ fn_tetris, 0, NULL },
{ fn_about, 0, NULL },
/* things that aren't in the menus */
{ fn_block, FN_MOVE, NULL },
{ fn_select_word, FN_MOVE, valid_word },
{ fn_insert, 0, NULL },
{ fn_backspace, FN_MOVE | FN_EDIT | FN_REP, NULL },
{ fn_delete, FN_MOVE | FN_EDIT | FN_REP, NULL },
{ fn_kill_word, FN_MOVE | FN_EDIT | FN_REP, NULL },
{ fn_e_kill, FN_MOVE | FN_EDIT | FN_REP, NULL },
{ fn_return, FN_MOVE | FN_EDIT | FN_REP, NULL },
{ fn_tab, FN_MOVE | FN_EDIT | FN_REP, NULL },
{ fn_left, FN_MARK | FN_REP, NULL },
{ fn_right, FN_MARK | FN_REP, NULL },
{ fn_word_left, FN_MARK | FN_REP, NULL },
{ fn_word_right, FN_MARK | FN_REP, NULL },
{ fn_line_start, FN_MARK | FN_REP, NULL },
{ fn_line_end, FN_MARK | FN_REP, NULL },
{ fn_up, FN_MARK | FN_REP, NULL },
{ fn_down, FN_MARK | FN_REP, NULL },
{ fn_screen_up, FN_MARK | FN_REP, NULL },
{ fn_screen_down, FN_MARK | FN_REP, NULL },
{ fn_start, FN_MARK | FN_REP, NULL },
{ fn_end, FN_MARK | FN_REP, NULL },
/* recently added functions get tacked on the end */
{ fn_clip_cut, FN_EDIT, valid_block },
{ fn_clip_copy, 0, valid_block },
{ fn_clip_yank, FN_MOVE_NS | FN_EDIT | FN_REP, got_clipboard_data }
};
int command_valid(int cmd)
{
if (cmd <= 0)
return FALSE;
if (fn_map[cmd].valid)
return (*fn_map[cmd].valid)();
else
return TRUE;
}
int command_move(int cmd)
{
if (cmd <= 0)
return FALSE;
if (fn_map[cmd].fn_flags & FN_MOVE)
return TRUE;
if (fn_map[cmd].fn_flags & FN_MOVE_NS)
return (!is_selecting(buffer[0]));
return FALSE;
}
int main(int argc, char *argv[])
{
int c;
int open_flags = 0;
int tmp;
int goto_line = -1;
char find[80] = "";
#ifdef TARGET_DJGPP
dos_seg = _go32_conventional_mem_selector();
__djgpp_set_ctrl_c(0);
setcbrk(0);
if (_USE_LFN)
_crt0_startup_flags |= _CRT0_FLAG_PRESERVE_FILENAME_CASE;
#endif
srand(time(NULL));
windows_init();
exe_path = argv[0];
if (get_fname(exe_path) == exe_path)
if (search_path(exe_buf, exe_path, "", "PATH"))
exe_path = exe_buf;
#if (defined TARGET_DJGPP) || (defined TARGET_WIN)
else if (search_path(exe_buf, exe_path, "exe", "PATH"))
exe_path = exe_buf;
#endif
if (!read_config(NULL))
return 1;
sort_out_tools();
#ifdef DJGPP
#define IS_OPTION(c) ((c=='-') || (c=='/'))
#define IS_FLAG(s, f) ((stricmp(s, "-" f)==0) || (stricmp(s, "/" f)==0))
#else
#define IS_OPTION(c) (c=='-')
#define IS_FLAG(s, f) (stricmp(s, "-" f)==0)
#endif
for (c=1;c<argc;c++) { /* process the command line flags */
if ((IS_OPTION(argv[c][0])) && (argv[c][1]>='0') && (argv[c][1]<='9')) {
config.screen_height = atoi(argv[c]+1);
}
else if ((IS_OPTION(argv[c][0])) && (tolower(argv[c][1])=='g')) {
goto_line = atoi(argv[c]+2);
}
else if ((IS_OPTION(argv[c][0])) && (tolower(argv[c][1])=='s')) {
strcpy(default_syntax, "default.");
strcat(default_syntax, argv[c]+2);
}
else if (argv[c][0]=='?') {
strcpy(find, argv[c]+1);
}
else if ((IS_OPTION(argv[c][0])) && (tolower(argv[c][1])=='t')) {
set_tab_size(atoi(argv[c]+2));
if ((TAB_SIZE <= 0) || (TAB_SIZE > 79)) {
fatal_error("Illegal tab size");
terminate();
#ifdef TARGET_DJGPP
__djgpp_set_ctrl_c(1);
#endif
return -1;
}
}
else if ((IS_OPTION(argv[c][0])) && (argv[c][1]=='?')) {
#ifdef TARGET_WIN
#define T "\t\t"
#else
#define T "\t"
#endif
static char msg[] =
"\n" VS ", by Shawn Hargreaves, " DS "\n"
"\nCommand line options:\n"
"\n"
"<file> " T "Open <file> (the name may contain wildcards)\n"
"-a " T "Open next file in normal ascii mode\n"
"-b " T "Open next file in binary mode\n"
"-e " T "Use next file as an error list\n"
"-f " T "Automatically fold the next file\n"
"-g<line>" T "Go to the specified line number\n"
"-h " T "Open next file in hex edit mode\n"
"-i " T "Open next file in autoindent mode\n"
"-r " T "Open next file in read-only mode\n"
"-s<ext> " T "Sets the file extension for syntax highlighting\n"
"-t<size>" T "Set the tab size\n"
"-w[col] " T "Open next file in wordwrap mode\n"
"?<text> " T "Browse for the string <text>\n"
#ifdef TARGET_WIN
"-<w>x<h>\tSet the window size\n"
"-<w>+<h>\tSet the window location\n"
#elif !defined TARGET_CURSES
"-<lines>" T "Set the number of screen lines\n"
#endif
"-? " T "Display this message\n"
"\n"
"For help on using FED, press F1 from within the program\n\n";
printf(msg);
terminate();
#ifdef TARGET_DJGPP
__djgpp_set_ctrl_c(1);
#endif
return 0;
}
}
errno = 0;
read_banner_info();
term_init(config.screen_height);
disp_init();
if (errno!=0) {
fatal_error(NULL);
exit_flag=1;
goto get_out;
}
for (c=1;c<argc;c++) { /* now to load some files... */
if (IS_FLAG(argv[c], "a"))
open_flags |= BUF_ASCII;
else if (IS_FLAG(argv[c], "b"))
open_flags |= BUF_BINARY;
else if (IS_FLAG(argv[c], "e"))
open_flags |= BUF_BROWSE;
else if (IS_FLAG(argv[c], "f"))
open_flags |= BUF_FOLD;
else if (IS_FLAG(argv[c], "h"))
open_flags |= BUF_HEX;
else if (IS_FLAG(argv[c], "i"))
open_flags |= BUF_INDENT;
else if (IS_FLAG(argv[c], "r"))
open_flags |= BUF_READONLY;
else if (IS_FLAG(argv[c], "w"))
open_flags |= BUF_WORDWRAP;
else if ((IS_OPTION(argv[c][0])) && (tolower(argv[c][1]) == 'w') && (atoi(argv[c]+2) != 0)) {
open_flags |= BUF_WORDWRAP;
config.wrap_col = atoi(argv[c]+2);
}
else {
/* load up the file(s) */
if ((!IS_OPTION(argv[c][0])) && (argv[c][0] != '?')) {
read_file(argv[c], open_flags);
open_flags=0;
if (errno==ENOMEM) /* abort if out of memory */
break;
if (buffer_count>0)
if (buffer[0]->flags & BUF_TRUNCATED)
break;
}
}
}
if (buffer_count==0) {
tmp=errno;
errno = 0;
read_file("untitled", 0);
errno=tmp;
}
find_kill_buffer();
if (buffer_count>0)
do_input_loop(goto_line, find);
get_out:
terminate();
disp_exit();
term_exit();
return exit_flag;
}
#ifdef DJGPP
/* prevent djgpp from doing too much screwy stuff at startup */
int _crt0_startup_flags = _CRT0_FLAG_USE_DOS_SLASHES |
_CRT0_FLAG_DISALLOW_RESPONSE_FILES;
char **__crt0_glob_function(char *_arg)
{
return NULL;
}
#endif
void terminate() /* gracefully terminate the program */
{
int c;
SYNTAX *s, *next;
for(c=0; c<buffer_count; c++)
destroy_buffer(buffer[c]);
buffer_count = 0;
if (config.keymap)
free(config.keymap);
s = config.syntax;
while (s) {
for (c=0; c<128; c++)
if (s->keyword[c].data)
free(s->keyword[c].data);
next = s->next;
free(s);
s = next;
}
repeat_count=0;
macro_mode=0;
}
void fatal_error(char *s)
{
cls();
linefeed();
mywrite(strerror(errno));
if(s) {
newline();
mywrite(s);
}
newline();
newline();
mywrite(" Press a key");
newline();
clear_keybuf();
gch();
}
void do_input_loop(int goto_line, char *find)
{
/* main key input and dispatching loop, including keymap lookups */
KEYPRESS key; /* the key */
int a,b,c; /* for binary search */
int d; /* difference value for search */
int in_macro;
int changed = TRUE;
display_new_buffer();
if (goto_line >= 0)
go_to_line(goto_line);
else
if (find[0])
browse(find);
else
browse_goto(0, FALSE);
while (buffer_count>0) { /* while there is something to edit */
in_macro = running_macro();
if ((repeat_count>0) || (in_macro))
if (check_abort()) {
repeat_count=0;
macro_mode=0;
in_macro = FALSE;
}
if (!input_waiting()) /* only redisplay when we have time */
#if (defined TARGET_CURSES) || (defined TARGET_WIN)
if ((changed) || (winched)) {
redisplay();
changed = FALSE;
if (winched == 1)
winched = 0;
}
#else
if (changed) {
redisplay();
changed = FALSE;
}
#endif
while (m_b)
poll_mouse();
if ((repeat_count==0) || (in_macro)) {
wait_for_input(FALSE);
if (input_waiting()) {
changed = TRUE;
key = input_char(); /* this is where it all happens... */
#ifndef TARGET_CURSES
poll_mouse();
#endif
a = 0; /* binary search on the keymap array */
b = config.keymap_size-1;
do {
c = (a + b) / 2;
d = key.key - config.keymap[c].key;
if (d < 0)
b = c - 1;
else
if (d > 0)
a = c + 1;
} while ((a <= b) && (d!=0));
if (d!=0) { /* fake binding to 0, insert character */
key.key = ascii(key.key);
if (key.key >= ' ') {
d=0;
c=0;
}
else {
if (((key.key==ESC) || (key.key==ascii(CTRL_G))) &&
(buffer[0]->sel_line))
block_finished();
}
}
else
c=config.keymap[c].fn_code;
}
else {
if (alt_pressed()) {
if (recording_macro()) {
strcpy(message, "Can't record menu actions in a macro");
display_message(0);
c = 0;
d = -1;
}
else {
changed = TRUE;
d = 0;
c = show_menu();
if (c==-1) {
c = 0;
d = -1;
}
poll_mouse();
}
}
else {
c = 0;
d = -1;
if ((poll_mouse()) ||
((m_y == 0) && (!config.show_menu)) ||
((m_x >= screen_w-1) && (!config.show_bar))) {
changed = TRUE;
c = do_mouse_input();
if (c != -1)
last_function = buffer[0]->last_function = -1;
if (c >= 0)
d = 0;
}
}
key.key = 0;
key.flags = 0;
}
}
else { /* just repeat the last command */
changed = TRUE;
repeat_count--;
c=repeat_function;
key.key = repeat_key;
key.flags = 0;
d=0;
}
if (d==0) { /* execute the command */
if ((buffer[0]->flags & BUF_READONLY) &&
(fn_map[c].fn_flags & FN_EDIT)) {
strcpy(message,"File is read-only");
display_message(MESSAGE_KEY);
}
else {
if (fn_map[c].fn_flags & FN_MARK) {
if (key.flags & KF_SHIFT) {
if (!buffer[0]->sel_line)
fn_block();
}
else
block_finished();
}
else if (fn_map[c].fn_flags & FN_DESEL)
block_finished();
if ((!in_macro) && (fn_map[c].fn != fn_repeat)) {
repeat_function=c;
repeat_key=key.key;
}
if ((!in_macro) && ((c != buffer[0]->last_function) ||
(buffer[0]->last_function < 0)))
buffer[0]->undo = new_undo_node(buffer[0]->undo);
((*fn_map[c].fn)(key.key)); /* DO IT! */
if ((c != 9 /* undo */) && (c != 10 /* redo */) && (buffer_count > 0) &&
((!buffer[0]->undo) || (buffer[0]->undo->length!=0) ||
(buffer[0]->undo->cached_operation != UNDO_NOTHING))) {
destroy_undolist(buffer[0]->redo);
buffer[0]->redo = NULL;
}
if (buffer_count > 0) {
last_function = (last_function == -2) ? -1 : c;
buffer[0]->last_function = last_function;
}
}
}
}
}
void do_bar()
{
int lines = 0;
int pos = 0;
int top;
int h;
LINE *l;
int c;
int b_pressed = FALSE;
int turn_off = FALSE;
int g = 0;
int start_time;
int timeout = 0;
int fast_scroll = FALSE;
int virgin = TRUE;
if (!config.show_bar) {
turn_off = TRUE;
config.show_bar = TRUE;
dirty_everything();
}
do {
if (!b_pressed) {
hide_mouse();
redisplay();
display_mouse();
start_time = clock();
fast_scroll = FALSE;
while (m_b) {
if (timeout >= 0) {
if ((clock() - start_time) > CLOCKS_PER_SEC / 16 * timeout) {
fast_scroll = (timeout > 0);
timeout = -1;
break;
}
}
poll_mouse();
}
}
else {
if (virgin)
virgin = FALSE;
else
redisplay();
fast_scroll = FALSE;
}
get_bar_data(buffer[0], &pos, &lines, &top, &h);
do {
delay(10);
if (!b_pressed)
wait_for_input(TRUE);
poll_mouse();
if ((!b_pressed) && (m_b)) {
if (m_y < top) {
fn_screen_up();
timeout = fast_scroll ? 1 : 8;
break;
}
else if (m_y >= top+h) {
fn_screen_down();
timeout = fast_scroll ? 1 : 8;
break;
}
else {
b_pressed = TRUE;
g = m_y - top;
hide_mouse();
set_mouse_height(32);
set_mouse_pos(m_x, (pos*32*(screen_h-1) + lines/2) / lines);
}
}
else if ((b_pressed) && (!m_b)) {
b_pressed = FALSE;
set_mouse_height(1);
set_mouse_pos(m_x, MIN(m_y+g, screen_h-1));
display_mouse();
}
} while ((m_x >= screen_w-1) &&
(!b_pressed) && (!input_waiting()));
if (b_pressed) {
pos = ((m_y * lines + screen_h/2) / (screen_h-1)) / 32;
top = (pos * (screen_h-1) + lines/2) / lines;
if ((top==0) && (pos > 0))
top=1;
l = buffer[0]->start;
for (c=0; c<pos; c++) {
if (l->fold)
l = l->fold;
}
buffer[0]->top = buffer[0]->c_line = l;
for (c=0; c<screen_h/2; c++)
if (buffer[0]->c_line->fold)
buffer[0]->c_line = buffer[0]->c_line->fold;
buffer[0]->c_pos = buffer[0]->old_c_pos = 0;
cursor_move_line();
disp_dirty();
}
else
if ((m_x < screen_w-1) || (input_waiting()))
break;
} while (TRUE);
if (turn_off) {
config.show_bar = FALSE;
dirty_everything();
}
display_mouse();
}
void goto_point(int x, int y)
{
int c;
LINE *l = l = buffer[0]->top;
extern int banner_height;
for (c=(config.show_menu ? 1 : 0); c<MIN(y, screen_h-banner_height-1); c++)
if (l->fold)
l = l->fold;
else
break;
if (c==screen_h-banner_height-1) {
buffer[0]->top = buffer[0]->top->fold;
disp_dirty();
}
buffer[0]->c_line = l;
buffer[0]->c_pos = 0;
while ((buffer[0]->c_pos < buffer[0]->c_line->length) &&
(get_line_length(l, buffer[0]->c_pos) < buffer[0]->hscroll+x))
buffer[0]->c_pos++;
buffer[0]->old_c_pos = get_line_length(buffer[0]->c_line, buffer[0]->c_pos);
cursor_move_line();
}
int do_mouse_input()
{
int changed = FALSE;
int ret;
extern int banner_height;
display_mouse();
while ((!input_waiting()) && (!alt_pressed())) {
wait_for_input(TRUE);
if (mouse_changed(NULL, NULL))
poll_mouse();
#if (defined TARGET_CURSES) || (defined TARGET_WIN)
if (winched)
break;
#endif
if ((m_b == 1) && (m_y > 0) && (m_x < screen_w-1)) {
changed = TRUE;
if ((m_b == 1) && (buffer[0]->sel_line))
block_finished();
goto_point(m_x, m_y);
hide_mouse();
redisplay();
display_mouse();
if (mouse_dclick(FALSE)) {
while (m_b == 1) {
int x = m_x;
int y = m_y;
poll_mouse();
if ((m_x != x) || (m_y != y)) {
fn_block();
while (m_b == 1) {
if ((m_y <= 0) && (buffer[0]->top->prev)) {
buffer[0]->top = buffer[0]->top->prev;
disp_dirty();
delay(10);
}
else if ((m_y >= screen_h-banner_height-1) && (buffer[0]->top->fold)) {
buffer[0]->top = buffer[0]->top->fold;
disp_dirty();
delay(10);
m_y = screen_h-banner_height-2;
}
goto_point(m_x, m_y);
hide_mouse();
redisplay();
display_mouse();
poll_mouse();
clear_keybuf();
}
}
}
}
else if (mouse_dclick(TRUE)) {
if (config.dclick_command > 0) {
while (m_b)
poll_mouse();
hide_mouse();
return config.dclick_command;
}
}
}
else if ((m_b & 2) && (m_y > 0) && (m_x < screen_w-1)) {
int x = m_x;
int y = m_y;
LINE *t = buffer[0]->top;
LINE *c_l = buffer[0]->c_line;
int c_pos = buffer[0]->c_pos;
goto_point(x, y);
hide_mouse();
ret = do_popup();
if ((ret > 0) && (command_move(ret))) {
changed = TRUE;
}
else {
buffer[0]->top = t;
buffer[0]->c_line = c_l;
buffer[0]->c_pos = c_pos;
cursor_move_line();
disp_dirty();
}
if (ret >= 0)
return ret;
else
return changed ? -2 : -1;
}
else {
if ((m_x >= screen_w-1) && ((!config.show_bar) || (m_b))) {
do_bar();
hide_mouse();
dirty_everything();
redisplay();
display_mouse();
while (m_b)
poll_mouse();
changed = TRUE;
}
else if ((m_y == 0) && ((!config.show_menu) || (m_b))) {
hide_mouse();
ret = show_menu();
if (ret >= 0)
return ret;