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control.c
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control.c
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/*
| control.c
|
| $Header: /home/hugh/sources/aee/RCS/control.c,v 1.50 2010/07/18 00:56:20 hugh Exp hugh $
*/
/*
| Copyright (c) 1986 - 1988, 1991 - 2000 - 2002, 2009, 2010 Hugh Mahon.
*/
#include "aee.h"
static char item_alpha[] = "abcdefghijklmnopqrstuvwxyz0123456789 ";
#define max_alpha_char 36
int
menu_op(menu_list)
struct menu_entries menu_list[];
{
WINDOW *temp_win;
int max_width, max_height;
int x_off, y_off;
int counter;
int length;
int input;
int temp;
int list_size;
int top_offset; /* offset from top where menu items start */
int vert_pos; /* vertical position */
int vert_size; /* vertical size for menu list item display */
int off_start = 1; /* offset from start of menu items to start display */
/*
| determine number and width of menu items
*/
list_size = 1;
while (menu_list[list_size + 1].item_string != NULL)
list_size++;
max_width = 0;
for (counter = 0; counter <= list_size; counter++)
{
if ((length = strlen(menu_list[counter].item_string)) > max_width)
max_width = length;
}
max_width += 3;
max_width = max(max_width, strlen(cancel_string));
max_width = max(max_width, max(strlen(more_above_str), strlen(more_below_str)));
max_width += 6;
/*
| make sure that window is large enough to handle menu
| if not, print error message and return to calling function
*/
if ((max_width > COLS) || ((list_size > LINES) && (LINES < 3)))
{
wmove(com_win, 0, 0);
werase(com_win);
wprintw(com_win, menu_too_lrg_msg);
wrefresh(com_win);
clr_cmd_line = TRUE;
return(0);
}
top_offset = 0;
if (list_size > LINES)
{
max_height = LINES;
if (max_height > 11)
vert_size = max_height - 8;
else
vert_size = max_height;
}
else
{
vert_size = list_size;
max_height = list_size;
}
if (LINES >= (vert_size + 8))
{
if (menu_list[0].argument != MENU_WARN)
max_height = vert_size + 8;
else
max_height = vert_size + 7;
top_offset = 4;
}
x_off = (COLS - max_width) / 2;
y_off = (LINES - max_height - 1) / 2;
temp_win = newwin(max_height, max_width, y_off, x_off);
keypad(temp_win, TRUE);
paint_menu(menu_list, max_width, max_height, list_size, top_offset, temp_win, off_start, vert_size);
counter = 1;
vert_pos = 0;
do
{
if (off_start > 2)
wmove(temp_win, (1 + counter + top_offset - off_start), 3);
else
wmove(temp_win, (counter + top_offset - off_start), 3);
wrefresh(temp_win);
get_input(temp_win);
input = in;
if (input == -1)
exit(0);
if (((tolower(input) >= 'a') && (tolower(input) <= 'z')) ||
((input >= '0') && (input <= '9')))
{
if ((tolower(input) >= 'a') && (tolower(input) <= 'z'))
{
temp = 1 + tolower(input) - 'a';
}
else if ((input >= '0') && (input <= '9'))
{
temp = (2 + 'z' - 'a') + (input - '0');
}
if (temp <= list_size)
{
input = '\n';
counter = temp;
}
}
else
{
switch (input)
{
case ' ': /* space */
case '\004': /* ^d, down */
case KEY_RIGHT:
case KEY_DOWN:
counter++;
if (counter > list_size)
counter = 1;
break;
case '\010': /* ^h, backspace*/
case '\025': /* ^u, up */
case 127: /* ^?, delete */
case KEY_BACKSPACE:
case KEY_LEFT:
case KEY_UP:
counter--;
if (counter == 0)
counter = list_size;
break;
case '\033': /* escape key */
if (menu_list[0].argument != MENU_WARN)
counter = 0;
break;
case '\014': /* ^l */
case '\022': /* ^r, redraw */
paint_menu(menu_list, max_width, max_height,
list_size, top_offset, temp_win,
off_start, vert_size);
break;
default:
break;
}
}
if (((list_size - off_start) >= (vert_size - 1)) &&
(counter > (off_start + vert_size - 3)) &&
(off_start > 1))
{
if (counter == list_size)
off_start = (list_size - vert_size) + 2;
else
off_start++;
paint_menu(menu_list, max_width, max_height,
list_size, top_offset, temp_win, off_start,
vert_size);
}
else if ((list_size != vert_size) &&
(counter > (off_start + vert_size - 2)))
{
if (counter == list_size)
off_start = 2 + (list_size - vert_size);
else if (off_start == 1)
off_start = 3;
else
off_start++;
paint_menu(menu_list, max_width, max_height,
list_size, top_offset, temp_win, off_start,
vert_size);
}
else if (counter < off_start)
{
if (counter <= 2)
off_start = 1;
else
off_start = counter;
paint_menu(menu_list, max_width, max_height,
list_size, top_offset, temp_win, off_start,
vert_size);
}
}
while ((input != '\r') && (input != '\n') && (counter != 0));
werase(temp_win);
wrefresh(temp_win);
delwin(temp_win);
if ((menu_list[counter].procedure != NULL) ||
(menu_list[counter].iprocedure != NULL) ||
(menu_list[counter].nprocedure != NULL))
{
if (menu_list[counter].argument != -1)
(*menu_list[counter].iprocedure)(menu_list[counter].argument);
else if (menu_list[counter].ptr_argument != NULL)
(*menu_list[counter].procedure)(menu_list[counter].ptr_argument);
else
(*menu_list[counter].nprocedure)();
}
if (info_window)
paint_info_win();
redraw();
return(counter);
}
void
paint_menu(menu_list, max_width, max_height, list_size, top_offset, menu_win,
off_start, vert_size)
struct menu_entries menu_list[];
int max_width, max_height, list_size, top_offset;
WINDOW *menu_win;
int off_start, vert_size;
{
int counter, temp_int;
werase(menu_win);
/*
| output top and bottom portions of menu box only if window
| large enough
*/
if (max_height > vert_size)
{
wmove(menu_win, 1, 1);
if (!nohighlight)
wstandout(menu_win);
waddch(menu_win, '+');
for (counter = 0; counter < (max_width - 4); counter++)
waddch(menu_win, '-');
waddch(menu_win, '+');
wmove(menu_win, (max_height - 2), 1);
waddch(menu_win, '+');
for (counter = 0; counter < (max_width - 4); counter++)
waddch(menu_win, '-');
waddch(menu_win, '+');
wstandend(menu_win);
wmove(menu_win, 2, 3);
waddstr(menu_win, menu_list[0].item_string);
wmove(menu_win, (max_height - 3), 3);
if (menu_list[0].argument != MENU_WARN)
waddstr(menu_win, cancel_string);
}
if (!nohighlight)
wstandout(menu_win);
for (counter = 0; counter < (vert_size + top_offset); counter++)
{
if (top_offset == 4)
{
temp_int = counter + 2;
}
else
temp_int = counter;
wmove(menu_win, temp_int, 1);
waddch(menu_win, '|');
wmove(menu_win, temp_int, (max_width - 2));
waddch(menu_win, '|');
}
wstandend(menu_win);
if (list_size > vert_size)
{
if (off_start >= 3)
{
temp_int = 1;
wmove(menu_win, top_offset, 3);
waddstr(menu_win, more_above_str);
}
else
temp_int = 0;
for (counter = off_start;
((temp_int + counter - off_start) < (vert_size - 1));
counter++)
{
wmove(menu_win, (top_offset + temp_int +
(counter - off_start)), 3);
if (list_size > 1)
wprintw(menu_win, "%c) ", item_alpha[min((counter - 1), max_alpha_char)]);
waddstr(menu_win, menu_list[counter].item_string);
}
wmove(menu_win, (top_offset + (vert_size - 1)), 3);
if (counter == list_size)
{
if (list_size > 1)
wprintw(menu_win, "%c) ", item_alpha[min((counter - 1), max_alpha_char)]);
wprintw(menu_win, menu_list[counter].item_string);
}
else
wprintw(menu_win, more_below_str);
}
else
{
for (counter = 1; counter <= list_size; counter++)
{
wmove(menu_win, (top_offset + counter - 1), 3);
if (list_size > 1)
wprintw(menu_win, "%c) ", item_alpha[min((counter - 1), max_alpha_char)]);
waddstr(menu_win, menu_list[counter].item_string);
}
}
}
void
shell_op()
{
char *string;
if (((string = get_string(shell_cmd_prompt, TRUE)) != NULL) &&
(*string != '\0'))
{
sh_command(string);
free(string);
}
}
void
leave_op()
{
int index;
if ((num_of_bufs > 1) && (top_of_stack == NULL))
{
index = menu_op(leave_menu_2);
switch(index)
{
case 2: index = delete_all_buffers();
if (index == FALSE)
return;
break;
case 1:
default:
repaint_screen();
return;
}
}
if (first_buff->changed)
{
index = menu_op(leave_menu);
repaint_screen();
switch (index)
{
case 1: finish(EXIT_str);
break;
case 2: first_buff->changed = FALSE;
quit(QUIT_str);
break;
default: return;
}
}
else
{
repaint_screen();
quit(QUIT_str);
}
}
void
spell_op() /* check spelling of words in the editor */
{
if (restrict_mode())
{
return;
}
top(); /* go to top of file */
insert_line(FALSE); /* create two blank lines */
insert_line(FALSE);
top();
command(shell_echo_msg);
adv_line();
wmove(com_win, 0, 0);
wprintw(com_win, spell_in_prog_msg);
wrefresh(com_win);
command("<>!spell"); /* send contents of buffer to command 'spell'
and read the results back into the editor */
}
void
ispell_op()
{
char name[128];
char string[256];
int pid;
if (restrict_mode())
{
return;
}
pid = getpid();
sprintf(name, "/tmp/ae.%d", pid);
if (write_file(name))
{
sprintf(string, "ispell %s", name);
sh_command(string);
delete_text();
tmp_file = name;
recv_file = TRUE;
check_fp();
unlink(name);
}
}
void
modes_op()
{
int ret_value;
int counter;
char *string;
int temp_int;
modes_menu[17].item_string = mode_strings[17];
do
{
sprintf(modes_menu[1].item_string, "%s %s", mode_strings[1],
(expand ? ON : OFF));
sprintf(modes_menu[2].item_string, "%s %s", mode_strings[2],
(case_sen ? ON : OFF));
sprintf(modes_menu[3].item_string, "%s %s", mode_strings[3],
( literal ? ON : OFF));
sprintf(modes_menu[4].item_string, "%s %s", mode_strings[4],
(forward ? "forward" : "reverse"));
sprintf(modes_menu[5].item_string, "%s %s", mode_strings[5],
(observ_margins ? ON : OFF));
sprintf(modes_menu[6].item_string, "%s %s", mode_strings[6],
( info_window ? ON : OFF));
sprintf(modes_menu[7].item_string, "%s %s", mode_strings[7],
( status_line ? ON : OFF));
sprintf(modes_menu[8].item_string, "%s %s", mode_strings[8],
( indent ? ON : OFF));
sprintf(modes_menu[9].item_string, "%s %s", mode_strings[9],
( overstrike ? ON : OFF));
sprintf(modes_menu[10].item_string, "%s %s", mode_strings[10],
( auto_format ? ON : OFF));
sprintf(modes_menu[11].item_string, "%s %s", mode_strings[11],
( windows ? ON : OFF));
sprintf(modes_menu[12].item_string, "%s %3d", mode_strings[12],
left_margin);
sprintf(modes_menu[13].item_string, "%s %3d", mode_strings[13],
right_margin);
sprintf(modes_menu[14].item_string, "%s %3d", mode_strings[14],
(info_win_height - 1));
sprintf(modes_menu[15].item_string, "%s %s", mode_strings[15],
(text_only ? text_msg : binary_msg ));
sprintf(modes_menu[16].item_string, "%s %s", mode_strings[16],
(curr_buff->dos_file ? dos_msg : unix_msg ));
ret_value = menu_op(modes_menu);
switch (ret_value)
{
case 1:
expand = !expand;
break;
case 2:
case_sen = !case_sen;
break;
case 3:
literal = !literal;
break;
case 4:
forward = !forward;
break;
case 5:
observ_margins = !observ_margins;
break;
case 6:
info_op();
break;
case 7:
status_line = !status_line;
break;
case 8:
indent = !indent;
break;
case 9:
overstrike = !overstrike;
break;
case 10:
auto_format = !auto_format;
if (auto_format)
{
observ_margins = TRUE;
indent = FALSE;
}
break;
case 11:
if (!windows)
make_win();
else
no_windows();
break;
case 12:
string = get_string(left_marg_prompt, TRUE);
if (string != NULL)
{
counter = atoi(string);
if (counter < right_margin)
left_margin = counter;
else
{
wmove(com_win, 0, 0);
werase(com_win);
wprintw(com_win, left_mrgn_err_msg);
wrefresh(com_win);
}
free(string);
}
break;
case 13:
string = get_string(right_mrgn_prompt, TRUE);
if (string != NULL)
{
counter = atoi(string);
if (counter > left_margin)
right_margin = counter;
else
{
wmove(com_win, 0, 0);
werase(com_win);
wprintw(com_win, right_mrgn_err_msg);
wrefresh(com_win);
}
free(string);
}
break;
case 14:
temp_int = info_win_height;
string = get_string(info_win_height_prompt, TRUE);
if (string != NULL)
{
counter = atoi(string);
if ((counter > 0) && (counter <= MAX_HELP_LINES))
info_win_height = counter + 1;
else
{
wmove(com_win, 0, 0);
werase(com_win);
wprintw(com_win, info_win_height_err);
wrefresh(com_win);
}
free(string);
if ((info_win_height != temp_int) && (info_window))
{
redo_win();
curr_buff->last_line = curr_buff->lines - 1;
new_screen();
paint_info_win();
redraw();
}
}
break;
case 15:
text_only = !text_only;
break;
case 16:
if (text_only)
curr_buff->dos_file = !curr_buff->dos_file;
break;
case 17:
dump_aee_conf();
break;
default:
break;
}
}
while (ret_value != 0);
}
void
search_op()
{
search(TRUE, curr_buff->curr_line, curr_buff->position, curr_buff->pointer, 0, FALSE, TRUE);
}
int
file_op(arg)
int arg;
{
char *string;
int flag;
if (arg == READ_FILE)
{
if (restrict_mode())
{
return(1);
}
string = get_string(file_read_prompt_str, TRUE);
recv_file = TRUE;
tmp_file = resolve_name(string);
check_fp();
if (tmp_file != string)
free(tmp_file);
free(string);
}
else if (arg == WRITE_FILE)
{
if (restrict_mode())
{
return(1);
}
string = get_string(file_write_prompt_str, TRUE);
tmp_file = resolve_name(string);
write_file(tmp_file);
if (tmp_file != string)
free(tmp_file);
free(string);
}
else if (arg == SAVE_FILE)
{
/*
| changes made here should be reflected in finish() and
| in command() where SAVE_str is handled.
*/
if (!curr_buff->edit_buffer)
chng_buf(main_buffer_name);
if (!curr_buff->changed)
{
wmove(com_win, 0, 0);
wprintw(com_win, no_chng_no_save );
wclrtoeol(com_win);
wrefresh(com_win);
return(0);
}
string = curr_buff->full_name;
if ((string != NULL) && (*string != '\0'))
flag = TRUE;
else
flag = FALSE;
if ((string == NULL) || (*string == '\0'))
{
if (restrict_mode())
{
return(1);
}
string = get_string(save_file_name_prompt, TRUE);
}
if ((string == NULL) || (*string == '\0'))
{
wmove(com_win, 0, 0);
wprintw(com_win, file_not_saved_msg );
wclrtoeol(com_win);
wrefresh(com_win);
clr_cmd_line = TRUE;
return(0);
}
if (!flag)
{
tmp_file = resolve_name(string);
if (tmp_file != string)
{
free(string);
string = tmp_file;
}
}
if (write_file(string))
{
if (curr_buff->file_name == NULL)
{
curr_buff->full_name = get_full_path(string,
NULL);
curr_buff->file_name =
ae_basename(curr_buff->full_name);
}
curr_buff->changed = FALSE;
change = FALSE;
}
else
{
if (!flag)
free(string);
return(1);
}
}
return(0);
}
void
info_op()
{
info_window = !info_window;
redo_win();
curr_buff->last_line = curr_buff->lines - 1;
new_screen();
if (info_window)
paint_info_win();
redraw();
}
int
macro_assign(keys, macro_string)
char *keys[];
char *macro_string;
{
int counter;
char *temp;
for (counter = 0; counter < 32; counter++)
{
temp = keys[counter];
if (compare(temp, macro_string, FALSE))
{
temp = next_word(temp);
if (*temp == '\0')
return(counter);
}
}
return(-1);
}
void
get_key_assgn()
{
int counter;
int local_index;
assignment[gold_key_index].ckey = 0;
if ((local_index = macro_assign(ctr, assignment[gold_key_index].macro)) != -1)
{
assignment[gold_key_index].ckey = local_index;
}
for (counter = 1; counter < gold_key_index; counter++)
{
assignment[counter].ckey = -1;
assignment[counter].gckey = -1;
if ((local_index = macro_assign(ctr, assignment[counter].macro)) != -1)
{
assignment[counter].ckey = local_index;
}
if (((local_index = macro_assign(g_ctr, assignment[counter].macro)) != -1) && (assignment[gold_key_index].ckey))
{
assignment[counter].gckey = local_index;
}
}
paint_information();
}
void
paint_information()
{
int counter;
int local_index;
int line_index;
int column, width;
char buffer[64];
for (counter = 0; counter < (info_win_height - 1); counter++)
{
info_data[counter][0] = '\0';
}
width = 0;
column = 0;
for (counter = 0, local_index = 1;
((width + column) <= min(COLS, MAX_HELP_COLS)) &&
(local_index < (gold_key_index + 1)) &&
(assignment[local_index].macro != NULL);
counter++, local_index++)
{
line_index = counter % (info_win_height - 1);
if (line_index == 0)
column += width;
while ((assignment[local_index].ckey < 0) &&
(assignment[local_index].gckey < 0) &&
(assignment[local_index].macro != NULL))
local_index++;
if (local_index > gold_key_index)
break;
if (assignment[local_index].ckey >= 0)
{
if (assignment[local_index].ckey == 26)
/* corresponds with Escape */
sprintf(buffer, "Esc %s ",
assignment[local_index].description);
else
sprintf(buffer, "^%c %s ",
(assignment[local_index].ckey + 'A'),
assignment[local_index].description);
}
else if (assignment[local_index].gckey > 0)
sprintf(buffer, "^%c^%c %s ",
(assignment[gold_key_index].ckey + 'A'),
(assignment[local_index].gckey + 'A'),
assignment[local_index].description);
width = max(width, strlen(buffer));
if ((width + column) <= min(COLS, MAX_HELP_COLS))
strcat(info_data[line_index], buffer);
}
}
void
paint_info_win()
{
int counter;
int width, column;
int index;
if ((!info_window) || (info_win == 0))
return;
werase(info_win);
if (info_type == COMMANDS)
{
index = 0;
for (column = 0; column < COLS && (commands[index] != NULL);
column += width + 1)
{
width = 0;
for (counter = 0;
counter < (info_win_height - 1) &&
(commands[index] != NULL);
counter++)
{
width = max(width, strlen(commands[index]));
if ((width + column) < COLS)
{
wmove(info_win, counter, column);
waddstr(info_win, commands[index]);
}
index++;
}
}
}
else if (info_type == CONTROL_KEYS)
{
for (counter = 0; counter < (info_win_height - 1); counter++)
{
wmove(info_win, counter, 0);
wclrtoeol(info_win);
waddstr(info_win, info_data[counter]);
}
}
wmove(info_win, (info_win_height - 1), 0);
if (!nohighlight)
wstandout(info_win);
wprintw(info_win, info_help_msg);
for (counter = strlen(info_help_msg); counter < COLS; counter++)
waddch(info_win, '=');
wstandend(info_win);
wrefresh(info_win);
}
/*
| The following routine tests the input string against the list of
| strings, to determine if the string is a unique match with one of the
| valid values.
*/
int
unique_test(string, list)
char *string;
char *list[];
{
int counter;
int num_match;
int result;
num_match = 0;
counter = 0;
while (list[counter] != NULL)
{
result = compare(string, list[counter], FALSE);
if (result)
num_match++;
counter++;
}
return(num_match);
}
void
command_prompt()
{
char *cmd_str;
int result;
info_type = COMMANDS;
paint_info_win();
cmd_str = get_string(cmd_prompt, TRUE);
if ((result = unique_test(cmd_str, commands)) != 1)
{
werase(com_win);
wmove(com_win, 0, 0);
if (result == 0)
wprintw(com_win, unkn_cmd_msg, cmd_str);
else
wprintw(com_win, non_unique_cmd_msg);
wrefresh(com_win);
info_type = CONTROL_KEYS;
paint_info_win();
if (cmd_str != NULL)
free(cmd_str);
return;
}
command(cmd_str);
wrefresh(com_win);
info_type = CONTROL_KEYS;
paint_info_win();
if (cmd_str != NULL)
free(cmd_str);
}
/*
| after changing the tab spacing, or inserting or deleting tab stops,
| re-calculate the vertical length of lines in buffers to ensure
| proper drawing of lines.
*/
void
tab_resize()
{
struct bufr *tt; /* temporary pointer */
struct text *tmp_tx; /* temporary text pointer */
tt = first_buff;
while (tt != NULL)
{
for (tmp_tx = tt->first_line; tmp_tx != NULL;
tmp_tx = tmp_tx->next_line)
{
tmp_tx->vert_len = (scanline(tmp_tx,
tmp_tx->line_length) / COLS) + 1;
}
tt->window_top = first_buff->window_top;
tt = tt->next_buff;
}
}
void
command(cmd_str) /* process commands from command line */
char *cmd_str;
{
char *cmd_str2;
char *c_temp;
char *name;
char *tmp;
char dir;
int alloc_space; /* have we allocated more space ? */
int c_int;
int retval;
int gold_flag;
int temp_int;
struct tab_stops *temp_stack;
clr_cmd_line = TRUE;
alloc_space = FALSE;
cmd_str2 = cmd_str;