1/*-
2 * Copyright (c) 1992, 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 * Copyright (c) 1992, 1993, 1994, 1995, 1996
5 *	Keith Bostic.  All rights reserved.
6 *
7 * See the LICENSE file for redistribution information.
8 */
9
10#include "config.h"
11
12#ifndef lint
13static const char sccsid[] = "$Id: v_init.c,v 10.10 2012/02/11 00:33:46 zy Exp $";
14#endif /* not lint */
15
16#include <sys/types.h>
17#include <sys/queue.h>
18#include <sys/time.h>
19
20#include <bitstring.h>
21#include <errno.h>
22#include <limits.h>
23#include <stdio.h>
24#include <stdlib.h>
25#include <string.h>
26
27#include "../common/common.h"
28#include "vi.h"
29
30/*
31 * v_screen_copy --
32 *	Copy vi screen.
33 *
34 * PUBLIC: int v_screen_copy __P((SCR *, SCR *));
35 */
36int
37v_screen_copy(SCR *orig, SCR *sp)
38{
39	VI_PRIVATE *ovip, *nvip;
40
41	/* Create the private vi structure. */
42	CALLOC_RET(orig, nvip, VI_PRIVATE *, 1, sizeof(VI_PRIVATE));
43	sp->vi_private = nvip;
44
45	/* Invalidate the line size cache. */
46	VI_SCR_CFLUSH(nvip);
47
48	if (orig == NULL) {
49		nvip->csearchdir = CNOTSET;
50	} else {
51		ovip = VIP(orig);
52
53		/* User can replay the last input, but nothing else. */
54		if (ovip->rep_len != 0) {
55			MALLOC_RET(orig, nvip->rep, EVENT *, ovip->rep_len);
56			memmove(nvip->rep, ovip->rep, ovip->rep_len);
57			nvip->rep_len = ovip->rep_len;
58		}
59
60		/* Copy the match characters information. */
61		if (ovip->mcs != NULL && (nvip->mcs =
62		    v_wstrdup(sp, ovip->mcs, STRLEN(ovip->mcs))) == NULL)
63			return (1);
64
65		/* Copy the paragraph/section information. */
66		if (ovip->ps != NULL && (nvip->ps =
67		    v_strdup(sp, ovip->ps, strlen(ovip->ps))) == NULL)
68			return (1);
69
70		nvip->lastckey = ovip->lastckey;
71		nvip->csearchdir = ovip->csearchdir;
72
73		nvip->srows = ovip->srows;
74	}
75	return (0);
76}
77
78/*
79 * v_screen_end --
80 *	End a vi screen.
81 *
82 * PUBLIC: int v_screen_end __P((SCR *));
83 */
84int
85v_screen_end(SCR *sp)
86{
87	VI_PRIVATE *vip;
88
89	if ((vip = VIP(sp)) == NULL)
90		return (0);
91	if (vip->keyw != NULL)
92		free(vip->keyw);
93	if (vip->rep != NULL)
94		free(vip->rep);
95	if (vip->mcs != NULL)
96		free(vip->mcs);
97	if (vip->ps != NULL)
98		free(vip->ps);
99
100	if (HMAP != NULL)
101		free(HMAP);
102
103	free(vip);
104	sp->vi_private = NULL;
105
106	return (0);
107}
108
109/*
110 * v_optchange --
111 *	Handle change of options for vi.
112 *
113 * PUBLIC: int v_optchange __P((SCR *, int, char *, u_long *));
114 */
115int
116v_optchange(SCR *sp, int offset, char *str, u_long *valp)
117{
118	switch (offset) {
119	case O_MATCHCHARS:
120		return (v_buildmcs(sp, str));
121	case O_PARAGRAPHS:
122		return (v_buildps(sp, str, O_STR(sp, O_SECTIONS)));
123	case O_SECTIONS:
124		return (v_buildps(sp, O_STR(sp, O_PARAGRAPHS), str));
125	case O_WINDOW:
126		return (vs_crel(sp, *valp));
127	}
128	return (0);
129}
130