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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_append.c 8.24 (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 <string.h>
#include <termios.h>
#include <unistd.h>
#include "compat.h"
#include <db.h>
#include <regex.h>
#include "vi.h"
#include "excmd.h"
#include "../sex/sex_screen.h"
enum which {APPEND, CHANGE, INSERT};
static int aci __P((SCR *, EXF *, EXCMDARG *, enum which));
/*
* ex_append -- :[line] a[ppend][!]
* Append one or more lines of new text after the specified line,
* or the current line if no address is specified.
*/
int
ex_append(sp, ep, cmdp)
SCR *sp;
EXF *ep;
EXCMDARG *cmdp;
{
return (aci(sp, ep, cmdp, APPEND));
}
/*
* ex_change -- :[line[,line]] c[hange][!] [count]
* Change one or more lines to the input text.
*/
int
ex_change(sp, ep, cmdp)
SCR *sp;
EXF *ep;
EXCMDARG *cmdp;
{
return (aci(sp, ep, cmdp, CHANGE));
}
/*
* ex_insert -- :[line] i[nsert][!]
* Insert one or more lines of new text before the specified line,
* or the current line if no address is specified.
*/
int
ex_insert(sp, ep, cmdp)
SCR *sp;
EXF *ep;
EXCMDARG *cmdp;
{
return (aci(sp, ep, cmdp, INSERT));
}
static int
aci(sp, ep, cmdp, cmd)
SCR *sp;
EXF *ep;
EXCMDARG *cmdp;
enum which cmd;
{
MARK m;
TEXTH *sv_tiqp, tiq;
TEXT *tp;
struct termios t;
u_int flags;
int rval;
rval = 0;
/*
* Set input flags; the ! flag turns off autoindent for append,
* change and insert.
*/
LF_INIT(TXT_DOTTERM | TXT_NLECHO);
if (!F_ISSET(cmdp, E_FORCE) && O_ISSET(sp, O_AUTOINDENT))
LF_SET(TXT_AUTOINDENT);
if (O_ISSET(sp, O_BEAUTIFY))
LF_SET(TXT_BEAUTIFY);
/* Input is interruptible. */
F_SET(sp, S_INTERRUPTIBLE);
/*
* If this code is called by vi, the screen TEXTH structure (sp->tiqp)
* may already be in use, e.g. ":append|s/abc/ABC/" would fail as we're
* only halfway through the line when the append code fires. Use the
* local structure instead.
*
* If this code is called by vi, we want to reset the terminal and use
* ex's s_get() routine. It actually works fine if we use vi's s_get()
* routine, but it doesn't look as nice. Maybe if we had a separate
* window or something, but getting a line at a time looks awkward.
*/
if (IN_VI_MODE(sp)) {
memset(&tiq, 0, sizeof(TEXTH));
CIRCLEQ_INIT(&tiq);
sv_tiqp = sp->tiqp;
sp->tiqp = &tiq;
if (F_ISSET(sp->gp, G_STDIN_TTY))
SEX_RAW(t);
(void)write(STDOUT_FILENO, "\n", 1);
LF_SET(TXT_NLECHO);
}
/* Set the line number, so that autoindent works correctly. */
sp->lno = cmdp->addr1.lno;
if (sex_get(sp, ep, sp->tiqp, 0, flags) != INP_OK)
goto err;
/*
* If doing a change, replace lines for as long as possible. Then,
* append more lines or delete remaining lines. Changes to an empty
* file are just appends, and inserts are the same as appends to the
* previous line.
*
* !!!
* Adjust the current line number for the commands to match historic
* practice if the user doesn't enter anything, and set the address
* to which we'll append. This is safe because an address of 0 is
* illegal for change and insert.
*/
m = cmdp->addr1;
switch (cmd) {
case INSERT:
--m.lno;
/* FALLTHROUGH */
case APPEND:
if (sp->lno == 0)
sp->lno = 1;
break;
case CHANGE:
--m.lno;
if (sp->lno != 1)
--sp->lno;
break;
}
/*
* !!!
* Cut into the unnamed buffer.
*/
if (cmd == CHANGE &&
(cut(sp, ep, NULL, &cmdp->addr1, &cmdp->addr2, CUT_LINEMODE) ||
delete(sp, ep, &cmdp->addr1, &cmdp->addr2, 1)))
goto err;
for (tp = sp->tiqp->cqh_first;
tp != (TEXT *)sp->tiqp; tp = tp->q.cqe_next) {
if (file_aline(sp, ep, 1, m.lno, tp->lb, tp->len)) {
err: rval = 1;
break;
}
sp->lno = ++m.lno;
}
if (IN_VI_MODE(sp)) {
sp->tiqp = sv_tiqp;
text_lfree(&tiq);
/* Reset the terminal state. */
if (F_ISSET(sp->gp, G_STDIN_TTY)) {
if (SEX_NORAW(t))
rval = 1;
F_SET(sp, S_REFRESH);
}
}
return (rval);
}
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