/** returns the position where text was found in the start buffer
* or 0 if not found
*/
static const char *
search_string (const char *start, const char *text)
{
const char *result = NULL;
char *local_text = g_strdup (text);
char *d = local_text;
const char *e = start;
/* fmt sometimes replaces a space with a newline in the help file */
/* Replace the newlines in the link name with spaces to correct the situation */
while (*d != '\0')
{
if (*d == '\n')
*d = ' ';
str_next_char (&d);
}
/* Do search */
for (d = local_text; *e; e++)
{
if (*d == *e)
d++;
else
d = local_text;
if (*d == '\0')
{
result = e + 1;
break;
}
}
g_free (local_text);
return result;
}
/** Check if directory completion is needed */
static gboolean
check_is_cd (const char *text, int lc_start, input_complete_t flags)
{
char *p, *q;
SHOW_C_CTX ("check_is_cd");
if ((flags & INPUT_COMPLETE_CD) == 0)
return FALSE;
/* Skip initial spaces */
p = (char *) text;
q = (char *) text + lc_start;
while (p < q && p[0] != '\0' && str_isspace (p))
str_next_char (&p);
/* Check if the command is "cd" and the cursor is after it */
return (p[0] == 'c' && p[1] == 'd' && str_isspace (p + 2) && p + 2 < q);
}
static void
fetch_hosts (const char *filename)
{
FILE *file = fopen (filename, "r");
char buffer[256], *name;
char *lc_start;
char *bi;
if (!file)
return;
while (fgets (buffer, 255, file) != NULL)
{
/* Skip to first character. */
for (bi = buffer; bi[0] != '\0' && str_isspace (bi); str_next_char (&bi));
/* Ignore comments... */
if (bi[0] == '#')
continue;
/* Handle $include. */
if (!strncmp (bi, "$include ", 9))
{
char *includefile = bi + 9;
char *t;
/* Find start of filename. */
while (*includefile && whitespace (*includefile))
includefile++;
t = includefile;
/* Find end of filename. */
while (t[0] != '\0' && !str_isspace (t))
str_next_char (&t);
*t = '\0';
fetch_hosts (includefile);
continue;
}
/* Skip IP #s. */
while (bi[0] != '\0' && !str_isspace (bi))
str_next_char (&bi);
/* Get the host names separated by white space. */
while (bi[0] != '\0' && bi[0] != '#')
{
while (bi[0] != '\0' && str_isspace (bi))
str_next_char (&bi);
if (bi[0] == '#')
continue;
for (lc_start = bi; bi[0] != '\0' && !str_isspace (bi); str_next_char (&bi));
if (bi - lc_start == 0)
continue;
name = g_strndup (lc_start, bi - lc_start);
{
char **host_p;
if (hosts_p - hosts >= hosts_alloclen)
{
int j;
j = hosts_p - hosts;
hosts_alloclen += 30;
hosts = g_renew (char *, hosts, hosts_alloclen + 1);
hosts_p = hosts + j;
}
for (host_p = hosts; host_p < hosts_p; host_p++)
if (!strcmp (name, *host_p))
break; /* We do not want any duplicates */
if (host_p == hosts_p)
{
*(hosts_p++) = name;
*hosts_p = NULL;
}
else
g_free (name);
}
}
}
static int
complete_engine (WInput * in, int what_to_do)
{
if (in->completions != NULL && str_offset_to_pos (in->buffer, in->point) != end)
input_free_completions (in);
if (in->completions == NULL)
{
char *s;
end = str_offset_to_pos (in->buffer, in->point);
s = in->buffer;
if (in->point != 0)
{
/* get symbol before in->point */
size_t i;
for (i = in->point - 1; i > 0; i--)
str_next_char (&s);
}
for (; s >= in->buffer; str_prev_char (&s))
{
start = s - in->buffer;
if (strchr (" \t;|<>", *s) != NULL)
break;
}
if (start < end)
{
str_next_char (&s);
start = s - in->buffer;
}
in->completions = try_complete (in->buffer, &start, &end, in->completion_flags);
}
if (in->completions != NULL)
{
if (what_to_do & DO_INSERTION || ((what_to_do & DO_QUERY) && !in->completions[1]))
{
char *lc_complete = in->completions[0];
if (insert_text (in, lc_complete, strlen (lc_complete)))
{
if (in->completions[1])
tty_beep ();
else
input_free_completions (in);
}
else
tty_beep ();
}
if ((what_to_do & DO_QUERY) && in->completions && in->completions[1])
{
int maxlen = 0, i, count = 0;
int x, y, w, h;
int start_x, start_y;
char **p, *q;
Dlg_head *query_dlg;
WListbox *query_list;
for (p = in->completions + 1; *p != NULL; count++, p++)
{
i = str_term_width1 (*p);
if (i > maxlen)
maxlen = i;
}
start_x = in->widget.x;
start_y = in->widget.y;
if (start_y - 2 >= count)
{
y = start_y - 2 - count;
h = 2 + count;
}
else
{
if (start_y >= LINES - start_y - 1)
{
y = 0;
h = start_y;
}
else
{
y = start_y + 1;
h = LINES - start_y - 1;
}
}
x = start - in->term_first_shown - 2 + start_x;
w = maxlen + 4;
if (x + w > COLS)
x = COLS - w;
if (x < 0)
x = 0;
if (x + w > COLS)
w = COLS;
input = in;
min_end = end;
query_height = h;
query_width = w;
query_dlg = create_dlg (TRUE, y, x, query_height, query_width,
dialog_colors, query_callback, NULL,
"[Completion]", NULL, DLG_COMPACT);
query_list = listbox_new (1, 1, h - 2, w - 2, FALSE, NULL);
add_widget (query_dlg, query_list);
for (p = in->completions + 1; *p; p++)
listbox_add_item (query_list, LISTBOX_APPEND_AT_END, 0, *p, NULL);
run_dlg (query_dlg);
q = NULL;
if (query_dlg->ret_value == B_ENTER)
{
listbox_get_current (query_list, &q, NULL);
if (q)
insert_text (in, q, strlen (q));
}
if (q || end != min_end)
input_free_completions (in);
i = query_dlg->ret_value; /* B_USER if user wants to start over again */
destroy_dlg (query_dlg);
if (i == B_USER)
return 1;
}
}
else
tty_beep ();
return 0;
}
static cb_ret_t
query_callback (Dlg_head * h, Widget * sender, dlg_msg_t msg, int parm, void *data)
{
static char buff[MB_LEN_MAX] = "";
static int bl = 0;
switch (msg)
{
case DLG_KEY:
switch (parm)
{
case KEY_LEFT:
case KEY_RIGHT:
bl = 0;
h->ret_value = 0;
dlg_stop (h);
return MSG_HANDLED;
case KEY_BACKSPACE:
bl = 0;
/* exit from completion list if input line is empty */
if (end == 0)
{
h->ret_value = 0;
dlg_stop (h);
}
/* Refill the list box and start again */
else if (end == min_end)
{
end = str_get_prev_char (&input->buffer[end]) - input->buffer;
input_handle_char (input, parm);
h->ret_value = B_USER;
dlg_stop (h);
return MSG_HANDLED;
}
else
{
int new_end;
int i;
GList *e;
new_end = str_get_prev_char (&input->buffer[end]) - input->buffer;
for (i = 0, e = ((WListbox *) h->current->data)->list;
e != NULL; i++, e = g_list_next (e))
{
WLEntry *le = (WLEntry *) e->data;
if (strncmp (input->buffer + start, le->text, new_end - start) == 0)
{
listbox_select_entry ((WListbox *) h->current->data, i);
end = new_end;
input_handle_char (input, parm);
send_message ((Widget *) h->current->data, WIDGET_DRAW, 0);
break;
}
}
}
return MSG_HANDLED;
default:
if (parm < 32 || parm > 255)
{
bl = 0;
if (input_key_is_in_map (input, parm) != 2)
return MSG_NOT_HANDLED;
if (end == min_end)
return MSG_HANDLED;
/* This means we want to refill the list box and start again */
h->ret_value = B_USER;
dlg_stop (h);
return MSG_HANDLED;
}
else
{
GList *e;
int i;
int need_redraw = 0;
int low = 4096;
char *last_text = NULL;
buff[bl++] = (char) parm;
buff[bl] = '\0';
switch (str_is_valid_char (buff, bl))
{
case -1:
bl = 0;
/* fallthrough */
case -2:
return MSG_HANDLED;
}
for (i = 0, e = ((WListbox *) h->current->data)->list;
e != NULL; i++, e = g_list_next (e))
{
WLEntry *le = (WLEntry *) e->data;
if (strncmp (input->buffer + start, le->text, end - start) == 0
&& strncmp (&le->text[end - start], buff, bl) == 0)
{
if (need_redraw == 0)
{
need_redraw = 1;
listbox_select_entry ((WListbox *) h->current->data, i);
last_text = le->text;
}
else
{
char *si, *sl;
int si_num = 0;
int sl_num = 0;
/* count symbols between start and end */
for (si = le->text + start; si < le->text + end;
str_next_char (&si), si_num++)
;
for (sl = last_text + start; sl < last_text + end;
str_next_char (&sl), sl_num++)
;
/* pointers to next symbols */
si = &le->text[str_offset_to_pos (le->text, ++si_num)];
sl = &last_text[str_offset_to_pos (last_text, ++sl_num)];
while (si[0] != '\0' && sl[0] != '\0')
{
char *nexti, *nextl;
nexti = str_get_next_char (si);
nextl = str_get_next_char (sl);
if (nexti - si != nextl - sl || strncmp (si, sl, nexti - si) != 0)
break;
si = nexti;
sl = nextl;
si_num++;
}
last_text = le->text;
si = &last_text[str_offset_to_pos (last_text, si_num)];
if (low > si - last_text)
low = si - last_text;
need_redraw = 2;
}
}
}
if (need_redraw == 2)
{
insert_text (input, last_text, low);
send_message ((Widget *) h->current->data, WIDGET_DRAW, 0);
}
else if (need_redraw == 1)
{
h->ret_value = B_ENTER;
dlg_stop (h);
}
bl = 0;
}
return MSG_HANDLED;
}
break;
default:
return default_dlg_callback (h, sender, msg, parm, data);
}
}
gboolean
user_menu_cmd (struct WEdit * edit_widget, const char *menu_file, int selected_entry)
{
char *p;
char *data, **entries;
int max_cols, menu_lines, menu_limit;
int col, i, accept_entry = 1;
int selected, old_patterns;
gboolean res = FALSE;
gboolean interactive = TRUE;
if (!vfs_current_is_local ())
{
message (D_ERROR, MSG_ERROR, "%s", _("Cannot execute commands on non-local filesystems"));
return FALSE;
}
if (menu_file != NULL)
menu = g_strdup (menu_file);
else
menu = g_strdup (edit_widget ? EDIT_LOCAL_MENU : MC_LOCAL_MENU);
if (!exist_file (menu) || !menu_file_own (menu))
{
if (menu_file != NULL)
{
message (D_ERROR, MSG_ERROR, _("Cannot open file %s\n%s"), menu,
unix_error_string (errno));
MC_PTR_FREE (menu);
return FALSE;
}
g_free (menu);
if (edit_widget)
menu = mc_config_get_full_path (EDIT_HOME_MENU);
else
menu = mc_config_get_full_path (MC_USERMENU_FILE);
if (!exist_file (menu))
{
g_free (menu);
menu =
mc_build_filename (mc_config_get_home_dir (),
edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU, NULL);
if (!exist_file (menu))
{
g_free (menu);
menu =
mc_build_filename (mc_global.sysconfig_dir,
edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU, NULL);
if (!exist_file (menu))
{
g_free (menu);
menu = mc_build_filename
(mc_global.share_data_dir, edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU,
NULL);
}
}
}
}
if (!g_file_get_contents (menu, &data, NULL, NULL))
{
message (D_ERROR, MSG_ERROR, _("Cannot open file%s\n%s"), menu, unix_error_string (errno));
MC_PTR_FREE (menu);
return FALSE;
}
max_cols = 0;
selected = 0;
menu_limit = 0;
entries = 0;
/* Parse the menu file */
old_patterns = easy_patterns;
p = check_patterns (data);
for (menu_lines = col = 0; *p; str_next_char (&p))
{
if (menu_lines >= menu_limit)
{
char **new_entries;
menu_limit += MAX_ENTRIES;
new_entries = g_try_realloc (entries, sizeof (new_entries[0]) * menu_limit);
if (new_entries == NULL)
break;
entries = new_entries;
new_entries += menu_limit;
while (--new_entries >= &entries[menu_lines])
*new_entries = NULL;
}
if (col == 0 && !entries[menu_lines])
{
if (*p == '#')
{
/* show prompt if first line of external script is #interactive */
if (selected_entry >= 0 && strncmp (p, "#silent", 7) == 0)
interactive = FALSE;
/* A commented menu entry */
accept_entry = 1;
}
else if (*p == '+')
{
if (*(p + 1) == '=')
{
/* Combined adding and default */
p = test_line (edit_widget, p + 1, &accept_entry);
if (selected == 0 && accept_entry)
selected = menu_lines;
}
else
{
/* A condition for adding the entry */
p = test_line (edit_widget, p, &accept_entry);
}
}
else if (*p == '=')
{
if (*(p + 1) == '+')
{
/* Combined adding and default */
p = test_line (edit_widget, p + 1, &accept_entry);
if (selected == 0 && accept_entry)
selected = menu_lines;
}
else
{
/* A condition for making the entry default */
i = 1;
p = test_line (edit_widget, p, &i);
if (selected == 0 && i)
selected = menu_lines;
}
}
else if (*p != ' ' && *p != '\t' && str_isprint (p))
{
/* A menu entry title line */
if (accept_entry)
entries[menu_lines] = p;
else
accept_entry = 1;
}
}
if (*p == '\n')
{
if (entries[menu_lines])
{
menu_lines++;
accept_entry = 1;
}
max_cols = max (max_cols, col);
col = 0;
}
else
{
if (*p == '\t')
*p = ' ';
col++;
}
}
if (menu_lines == 0)
{
message (D_ERROR, MSG_ERROR, _("No suitable entries found in %s"), menu);
res = FALSE;
}
else
{
if (selected_entry >= 0)
selected = selected_entry;
else
{
Listbox *listbox;
max_cols = min (max (max_cols, col), MAX_ENTRY_LEN);
/* Create listbox */
listbox = create_listbox_window (menu_lines, max_cols + 2, _("User menu"),
"[Menu File Edit]");
/* insert all the items found */
for (i = 0; i < menu_lines; i++)
{
p = entries[i];
LISTBOX_APPEND_TEXT (listbox, (unsigned char) p[0],
extract_line (p, p + MAX_ENTRY_LEN), p);
}
/* Select the default entry */
listbox_select_entry (listbox->list, selected);
selected = run_listbox (listbox);
}
if (selected >= 0)
{
execute_menu_command (edit_widget, entries[selected], interactive);
res = TRUE;
}
do_refresh ();
}
easy_patterns = old_patterns;
MC_PTR_FREE (menu);
g_free (entries);
g_free (data);
return res;
}