* Copyright (c) 1993, 1994
* The Regents of the University of California. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
static char sccsid
[] = "@(#)sex_screen.c 8.36 (Berkeley) 3/15/94";
#include "../svi/svi_screen.h"
static void sex_abort
__P((void));
static int sex_noop
__P((void));
static int sex_nope
__P((SCR
*));
* Initialize the ex screen.
/* Initialize support routines. */
sp
->s_bg
= (int (*)())sex_nope
;
sp
->s_busy
= (int (*)())sex_busy
;
sp
->s_change
= (int (*)())sex_noop
;
sp
->s_clear
= (int (*)())sex_noop
;
sp
->s_colpos
= (size_t (*)())sex_abort
;
sp
->s_column
= (int (*)())sex_abort
;
sp
->s_confirm
= sex_confirm
;
sp
->s_crel
= (int (*)())sex_nope
;
sp
->s_down
= (int (*)())sex_abort
;
sp
->s_edit
= sex_screen_edit
;
sp
->s_end
= (int (*)())sex_noop
;
sp
->s_ex_cmd
= (int (*)())sex_abort
;
sp
->s_ex_run
= (int (*)())sex_abort
;
sp
->s_ex_write
= (int (*)())sex_abort
;
sp
->s_fg
= (int (*)())sex_nope
;
sp
->s_fill
= (int (*)())sex_abort
;
sp
->s_get
= F_ISSET(sp
->gp
,
G_STDIN_TTY
) ? sex_get
: sex_get_notty
;
sp
->s_key_read
= sex_key_read
;
sp
->s_optchange
= (int (*)())sex_noop
;
sp
->s_position
= (int (*)())sex_abort
;
sp
->s_rabs
= (int (*)())sex_nope
;
sp
->s_rcm
= (size_t (*)())sex_abort
;
sp
->s_refresh
= sex_refresh
;
sp
->s_split
= (int (*)())sex_nope
;
sp
->s_suspend
= sex_suspend
;
sp
->s_up
= (int (*)())sex_abort
;
sex_screen_copy(orig
, sp
)
* Main ex screen loop. The ex screen is relatively uncomplicated.
* As long as it has a stdio FILE pointer for output, it's happy.
/* Initialize the terminal state. */
if (F_ISSET(sp
->gp
, G_STDIN_TTY
))
/* Write to the terminal. */
sp
->rows
= O_VAL(sp
, O_LINES
);
sp
->cols
= O_VAL(sp
, O_COLUMNS
);
* Run ex. If ex fails, sex data structures
* may be corrupted, be careful what you do.
if (rval
= ex(sp
, sp
->ep
)) {
if (F_ISSET(ep
, F_RCV_ON
)) {
(void)rcv_sync(sp
, sp
->ep
);
(void)file_end(sp
, sp
->ep
, 1);
(void)screen_end(sp
); /* General SCR info. */
switch (F_ISSET(sp
, S_MAJOR_CHANGE
)) {
F_CLR(sp
, S_EXIT_FORCE
| S_EXIT
);
if (file_end(sp
, sp
->ep
, force
))
(void)screen_end(sp
); /* General SCR info. */
case 0: /* Changing from ex mode. */
/* Reset the terminal state. */
ret
: if (F_ISSET(sp
->gp
, G_STDIN_TTY
) && SEX_NORAW(t
))
* Fake function. Do nothing.
* Fake function. Not in ex, you don't.
msgq(sp
, M_ERR
, "Command not applicable to ex mode.");