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/*-
* Copyright (c) 1992, 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
* are met:
* 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
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)ex_visual.c 8.15 (Berkeley) 8/17/94";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>
#include <bitstring.h>
#include <limits.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include "compat.h"
#include <db.h>
#include <regex.h>
#include "vi.h"
#include "excmd.h"
/*
* ex_visual -- :[line] vi[sual] [^-.+] [window_size] [flags]
*
* Switch to visual mode.
*/
int
ex_visual(sp, ep, cmdp)
SCR *sp;
EXF *ep;
EXCMDARG *cmdp;
{
size_t len;
int pos;
char buf[256];
/* If open option off, disallow visual command. */
if (!O_ISSET(sp, O_OPEN)) {
msgq(sp, M_ERR,
"The visual command requires that the open option be set");
return (1);
}
/* If a line specified, move to that line. */
if (cmdp->addrcnt)
sp->lno = cmdp->addr1.lno;
/*
* Push a command based on the line position flags. If no
* flag specified, the line goes at the top of the screen.
*/
switch (F_ISSET(cmdp, E_F_CARAT | E_F_DASH | E_F_DOT | E_F_PLUS)) {
case E_F_CARAT:
pos = '^';
break;
case E_F_DASH:
pos = '-';
break;
case E_F_DOT:
pos = '.';
break;
case E_F_PLUS:
pos = '+';
break;
default:
sp->frp->lno = sp->lno;
sp->frp->cno = 0;
F_SET(sp->frp, FR_CURSORSET | FR_FNONBLANK);
goto nopush;
}
if (F_ISSET(cmdp, E_COUNT))
len = snprintf(buf, sizeof(buf),
"%luz%c%lu", sp->lno, pos, cmdp->count);
else
len = snprintf(buf, sizeof(buf), "%luz%c", sp->lno, pos);
(void)term_push(sp, buf, len, CH_NOMAP | CH_QUOTED);
/*
* !!!
* Historically, if no line address was specified, the [p#l] flags
* caused the cursor to be moved to the last line of the file, which
* was then positioned as described above. This seems useless, so
* I haven't implemented it.
*/
switch (F_ISSET(cmdp, E_F_HASH | E_F_LIST | E_F_PRINT)) {
case E_F_HASH:
O_SET(sp, O_NUMBER);
break;
case E_F_LIST:
O_SET(sp, O_LIST);
break;
case E_F_PRINT:
break;
}
/* Switch modes. */
nopush: F_CLR(sp, S_SCREENS);
F_SET(sp, sp->saved_vi_mode);
return (0);
}
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