1/*	$NetBSD: v_init.c,v 1.2 2008/12/05 22:51:43 christos Exp $ */
2
3/*-
4 * Copyright (c) 1992, 1993, 1994
5 *	The Regents of the University of California.  All rights reserved.
6 * Copyright (c) 1992, 1993, 1994, 1995, 1996
7 *	Keith Bostic.  All rights reserved.
8 *
9 * See the LICENSE file for redistribution information.
10 */
11
12#include "config.h"
13
14#ifndef lint
15static const char sccsid[] = "Id: v_init.c,v 10.9 2001/06/25 15:19:31 skimo Exp (Berkeley) Date: 2001/06/25 15:19:31";
16#endif /* not lint */
17
18#include <sys/types.h>
19#include <sys/queue.h>
20#include <sys/time.h>
21
22#include <bitstring.h>
23#include <errno.h>
24#include <limits.h>
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28
29#include "../common/common.h"
30#include "vi.h"
31
32/*
33 * v_screen_copy --
34 *	Copy vi screen.
35 *
36 * PUBLIC: int v_screen_copy __P((SCR *, SCR *));
37 */
38int
39v_screen_copy(SCR *orig, SCR *sp)
40{
41	VI_PRIVATE *ovip, *nvip;
42
43	/* Create the private vi structure. */
44	CALLOC_RET(orig, nvip, VI_PRIVATE *, 1, sizeof(VI_PRIVATE));
45	sp->vi_private = nvip;
46
47	/* Invalidate the line size cache. */
48	VI_SCR_CFLUSH(nvip);
49
50	if (orig == NULL) {
51		nvip->csearchdir = CNOTSET;
52	} else {
53		ovip = VIP(orig);
54
55		/* User can replay the last input, but nothing else. */
56		if (ovip->rep_len != 0) {
57			MALLOC_RET(orig, nvip->rep, EVENT *, ovip->rep_len);
58			memmove(nvip->rep, ovip->rep, ovip->rep_len);
59			nvip->rep_len = ovip->rep_len;
60		}
61
62		/* Copy the paragraph/section information. */
63		if (ovip->ps != NULL && (nvip->ps =
64		    v_strdup(sp, ovip->ps, strlen(ovip->ps))) == NULL)
65			return (1);
66
67		nvip->lastckey = ovip->lastckey;
68		nvip->csearchdir = ovip->csearchdir;
69
70		nvip->srows = ovip->srows;
71	}
72	return (0);
73}
74
75/*
76 * v_screen_end --
77 *	End a vi screen.
78 *
79 * PUBLIC: int v_screen_end __P((SCR *));
80 */
81int
82v_screen_end(SCR *sp)
83{
84	VI_PRIVATE *vip;
85
86	if ((vip = VIP(sp)) == NULL)
87		return (0);
88	if (vip->keyw != NULL)
89		free(vip->keyw);
90	if (vip->rep != NULL)
91		free(vip->rep);
92	if (vip->ps != NULL)
93		free(vip->ps);
94
95	if (HMAP != NULL)
96		free(HMAP);
97
98	free(vip);
99	sp->vi_private = NULL;
100
101	return (0);
102}
103
104/*
105 * v_optchange --
106 *	Handle change of options for vi.
107 *
108 * PUBLIC: int v_optchange __P((SCR *, int, const char *, u_long *));
109 */
110int
111v_optchange(SCR *sp, int offset, const char *str, u_long *valp)
112{
113	switch (offset) {
114	case O_PARAGRAPHS:
115		return (v_buildps(sp, str, O_STR(sp, O_SECTIONS)));
116	case O_SECTIONS:
117		return (v_buildps(sp, O_STR(sp, O_PARAGRAPHS), str));
118	case O_WINDOW:
119		return (vs_crel(sp, *valp));
120	}
121	return (0);
122}
123