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v_put.c
136 lines (123 loc) · 2.81 KB
/
v_put.c
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/*-
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1992, 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>
#include <bitstring.h>
#include <limits.h>
#include <stdio.h>
#include "../common/common.h"
#include "vi.h"
static void inc_buf(SCR *, VICMD *);
/*
* v_Put -- [buffer]P
* Insert the contents of the buffer before the cursor.
*
* PUBLIC: int v_Put(SCR *, VICMD *);
*/
int
v_Put(SCR *sp, VICMD *vp)
{
u_long cnt;
if (F_ISSET(vp, VC_ISDOT))
inc_buf(sp, vp);
/*
* !!!
* Historic vi did not support a count with the 'p' and 'P'
* commands. It's useful, so we do.
*/
for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
if (put(sp, NULL,
F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
&vp->m_start, &vp->m_final, 0))
return (1);
vp->m_start = vp->m_final;
if (INTERRUPTED(sp))
return (1);
}
return (0);
}
/*
* v_put -- [buffer]p
* Insert the contents of the buffer after the cursor.
*
* PUBLIC: int v_put(SCR *, VICMD *);
*/
int
v_put(SCR *sp, VICMD *vp)
{
u_long cnt;
if (F_ISSET(vp, VC_ISDOT))
inc_buf(sp, vp);
/*
* !!!
* Historic vi did not support a count with the 'p' and 'P'
* commands. It's useful, so we do.
*/
for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
if (put(sp, NULL,
F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
&vp->m_start, &vp->m_final, 1))
return (1);
vp->m_start = vp->m_final;
if (INTERRUPTED(sp))
return (1);
}
return (0);
}
/*
* !!!
* Historical whackadoo. The dot command `puts' the numbered buffer
* after the last one put. For example, `"4p.' would put buffer #4
* and buffer #5. If the user continued to enter '.', the #9 buffer
* would be repeatedly output. This was not documented, and is a bit
* tricky to reconstruct. Historical versions of vi also dropped the
* contents of the default buffer after each put, so after `"4p' the
* default buffer would be empty. This makes no sense to me, so we
* don't bother. Don't assume sequential order of numeric characters.
*
* And, if that weren't exciting enough, failed commands don't normally
* set the dot command. Well, boys and girls, an exception is that
* the buffer increment gets done regardless of the success of the put.
*/
static void
inc_buf(SCR *sp, VICMD *vp)
{
CHAR_T v;
switch (vp->buffer) {
case '1':
v = '2';
break;
case '2':
v = '3';
break;
case '3':
v = '4';
break;
case '4':
v = '5';
break;
case '5':
v = '6';
break;
case '6':
v = '7';
break;
case '7':
v = '8';
break;
case '8':
v = '9';
break;
default:
return;
}
VIP(sp)->sdot.buffer = vp->buffer = v;
}