GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/vi/build/../vi/v_put.c Lines: 0 33 0.0 %
Date: 2017-11-13 Branches: 0 37 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: v_put.c,v 1.8 2016/05/27 09:18:12 martijn Exp $	*/
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/*-
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 * Copyright (c) 1992, 1993, 1994
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 *	The Regents of the University of California.  All rights reserved.
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 * Copyright (c) 1992, 1993, 1994, 1995, 1996
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 *	Keith Bostic.  All rights reserved.
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 *
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 * See the LICENSE file for redistribution information.
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 */
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#include "config.h"
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/time.h>
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#include <bitstring.h>
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#include <limits.h>
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#include <stdio.h>
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#include "../common/common.h"
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#include "vi.h"
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static void	inc_buf(SCR *, VICMD *);
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/*
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 * v_Put -- [buffer]P
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 *	Insert the contents of the buffer before the cursor.
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 *
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 * PUBLIC: int v_Put(SCR *, VICMD *);
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 */
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int
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v_Put(SCR *sp, VICMD *vp)
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{
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	u_long cnt;
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	if (F_ISSET(vp, VC_ISDOT))
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		inc_buf(sp, vp);
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	/*
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	 * !!!
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	 * Historic vi did not support a count with the 'p' and 'P'
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	 * commands.  It's useful, so we do.
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	 */
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	for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
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		if (put(sp, NULL,
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		    F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
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		    &vp->m_start, &vp->m_final, 0))
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			return (1);
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		vp->m_start = vp->m_final;
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		if (INTERRUPTED(sp))
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			return (1);
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	}
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	return (0);
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}
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/*
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 * v_put -- [buffer]p
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 *	Insert the contents of the buffer after the cursor.
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 *
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 * PUBLIC: int v_put(SCR *, VICMD *);
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 */
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int
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v_put(SCR *sp, VICMD *vp)
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{
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	u_long cnt;
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	if (F_ISSET(vp, VC_ISDOT))
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		inc_buf(sp, vp);
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	/*
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	 * !!!
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	 * Historic vi did not support a count with the 'p' and 'P'
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	 * commands.  It's useful, so we do.
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	 */
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	for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
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		if (put(sp, NULL,
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		    F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
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		    &vp->m_start, &vp->m_final, 1))
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			return (1);
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		vp->m_start = vp->m_final;
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		if (INTERRUPTED(sp))
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			return (1);
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	}
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	return (0);
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}
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/*
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 * !!!
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 * Historical whackadoo.  The dot command `puts' the numbered buffer
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 * after the last one put.  For example, `"4p.' would put buffer #4
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 * and buffer #5.  If the user continued to enter '.', the #9 buffer
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 * would be repeatedly output.  This was not documented, and is a bit
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 * tricky to reconstruct.  Historical versions of vi also dropped the
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 * contents of the default buffer after each put, so after `"4p' the
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 * default buffer would be empty.  This makes no sense to me, so we
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 * don't bother.  Don't assume sequential order of numeric characters.
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 *
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 * And, if that weren't exciting enough, failed commands don't normally
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 * set the dot command.  Well, boys and girls, an exception is that
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 * the buffer increment gets done regardless of the success of the put.
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 */
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static void
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inc_buf(SCR *sp, VICMD *vp)
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{
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	CHAR_T v;
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	switch (vp->buffer) {
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	case '1':
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		v = '2';
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		break;
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	case '2':
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		v = '3';
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		break;
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	case '3':
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		v = '4';
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		break;
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	case '4':
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		v = '5';
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		break;
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	case '5':
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		v = '6';
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		break;
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	case '6':
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		v = '7';
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		break;
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	case '7':
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		v = '8';
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		break;
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	case '8':
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		v = '9';
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		break;
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	default:
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		return;
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	}
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	VIP(sp)->sdot.buffer = vp->buffer = v;
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}