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#include <sys/types.h>
13#include <sys/queue.h>
14#include <sys/time.h>
15
16#include <bitstring.h>
17#include <errno.h>
18#include <limits.h>
19#include <stdio.h>
20#include <stdlib.h>
21#include <string.h>
22
23#include "../common/common.h"
24#include "vi.h"
25
26/*
27 * v_screen_copy --
28 *	Copy vi screen.
29 *
30 * PUBLIC: int v_screen_copy(SCR *, SCR *);
31 */
32int
33v_screen_copy(SCR *orig, SCR *sp)
34{
35	VI_PRIVATE *ovip, *nvip;
36
37	/* Create the private vi structure. */
38	CALLOC_RET(orig, nvip, 1, sizeof(VI_PRIVATE));
39	sp->vi_private = nvip;
40
41	/* Invalidate the line size cache. */
42	VI_SCR_CFLUSH(nvip);
43
44	if (orig == NULL) {
45		nvip->csearchdir = CNOTSET;
46	} else {
47		ovip = VIP(orig);
48
49		/* User can replay the last input, but nothing else. */
50		if (ovip->rep_len != 0) {
51			MALLOC_RET(orig, nvip->rep, ovip->rep_len);
52			memmove(nvip->rep, ovip->rep, ovip->rep_len);
53			nvip->rep_len = ovip->rep_len;
54		}
55
56		/* Copy the match characters information. */
57		if (ovip->mcs != NULL && (nvip->mcs =
58		    v_wstrdup(sp, ovip->mcs, STRLEN(ovip->mcs))) == NULL)
59			return (1);
60
61		/* Copy the paragraph/section information. */
62		if (ovip->ps != NULL && (nvip->ps =
63		    v_strdup(sp, ovip->ps, strlen(ovip->ps))) == NULL)
64			return (1);
65
66		nvip->lastckey = ovip->lastckey;
67		nvip->csearchdir = ovip->csearchdir;
68
69		nvip->srows = ovip->srows;
70	}
71	return (0);
72}
73
74/*
75 * v_screen_end --
76 *	End a vi screen.
77 *
78 * PUBLIC: int v_screen_end(SCR *);
79 */
80int
81v_screen_end(SCR *sp)
82{
83	VI_PRIVATE *vip;
84
85	if ((vip = VIP(sp)) == NULL)
86		return (0);
87	free(vip->keyw);
88	free(vip->rep);
89	free(vip->mcs);
90	free(vip->ps);
91
92	free(HMAP);
93
94	free(vip);
95	sp->vi_private = NULL;
96
97	return (0);
98}
99
100/*
101 * v_optchange --
102 *	Handle change of options for vi.
103 *
104 * PUBLIC: int v_optchange(SCR *, int, char *, u_long *);
105 */
106int
107v_optchange(SCR *sp, int offset, char *str, u_long *valp)
108{
109	switch (offset) {
110	case O_MATCHCHARS:
111		return (v_buildmcs(sp, str));
112	case O_PARAGRAPHS:
113		return (v_buildps(sp, str, O_STR(sp, O_SECTIONS)));
114	case O_SECTIONS:
115		return (v_buildps(sp, O_STR(sp, O_PARAGRAPHS), str));
116	case O_WINDOW:
117		return (vs_crel(sp, *valp));
118	}
119	return (0);
120}
121