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/*-
* Copyright (c) 1992, 1993
* 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[] = "@(#)v_filter.c 8.10 (Berkeley) 12/2/93";
#endif /* not lint */
#include <sys/types.h>
#include <string.h>
#include "vi.h"
#include "vcmd.h"
#include "excmd.h"
/*
* v_filter -- [count]!motion command(s)
* Run range through shell commands, replacing text.
*/
int
v_filter(sp, ep, vp, fm, tm, rp)
SCR *sp;
EXF *ep;
VICMDARG *vp;
MARK *fm, *tm, *rp;
{
EXCMDARG cmd;
TEXT *tp;
/*
* !!!
* Historical vi permitted "!!" in an empty file. This is
* handled as a special case in the ex_bang routine. Don't
* modify this setup without understanding that one. In
* particular, note that we're manipulating the ex argument
* structures behind ex's back.
*/
SETCMDARG(cmd, C_BANG, 2, fm->lno, tm->lno, 0, NULL);
EXP(sp)->argsoff = 0; /* XXX */
if (F_ISSET(vp, VC_ISDOT)) {
if (argv_exp1(sp, ep, &cmd, "!", 1, 1))
return (1);
} else {
/* Get the command from the user. */
if (sp->s_get(sp, ep, &sp->tiq,
'!', TXT_BS | TXT_CR | TXT_ESCAPE | TXT_PROMPT) != INP_OK)
return (1);
/*
* Len is 0 if backspaced over the prompt,
* 1 if only CR entered.
*/
tp = sp->tiq.cqh_first;
if (tp->len <= 1)
return (0);
if (argv_exp1(sp, ep, &cmd, tp->lb + 1, tp->len - 1, 1))
return (1);
}
cmd.argc = EXP(sp)->argsoff; /* XXX */
cmd.argv = EXP(sp)->args; /* XXX */
return (sp->s_ex_cmd(sp, ep, &cmd, rp));
}
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