1 /* $OpenBSD: v_init.c,v 1.8 2017/04/18 01:45:35 deraadt 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 #include <sys/types.h>
15 #include <sys/queue.h>
16 #include <sys/time.h>
17
18 #include <bitstring.h>
19 #include <errno.h>
20 #include <limits.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24
25 #include "../common/common.h"
26 #include "vi.h"
27
28 /*
29 * v_screen_copy --
30 * Copy vi screen.
31 *
32 * PUBLIC: int v_screen_copy(SCR *, SCR *);
33 */
34 int
v_screen_copy(SCR * orig,SCR * sp)35 v_screen_copy(SCR *orig, SCR *sp)
36 {
37 VI_PRIVATE *ovip, *nvip;
38
39 /* Create the private vi structure. */
40 CALLOC_RET(orig, nvip, 1, sizeof(VI_PRIVATE));
41 sp->vi_private = nvip;
42
43 /* Invalidate the line size cache. */
44 VI_SCR_CFLUSH(nvip);
45
46 if (orig == NULL) {
47 nvip->csearchdir = CNOTSET;
48 } else {
49 ovip = VIP(orig);
50
51 /* User can replay the last input, but nothing else. */
52 if (ovip->rep_len != 0) {
53 MALLOC_RET(orig, nvip->rep, ovip->rep_len);
54 memmove(nvip->rep, ovip->rep, ovip->rep_len);
55 nvip->rep_len = ovip->rep_len;
56 }
57
58 /* Copy the paragraph/section information. */
59 if (ovip->ps != NULL && (nvip->ps =
60 v_strdup(sp, ovip->ps, strlen(ovip->ps))) == NULL)
61 return (1);
62
63 nvip->lastckey = ovip->lastckey;
64 nvip->csearchdir = ovip->csearchdir;
65
66 nvip->srows = ovip->srows;
67 }
68 return (0);
69 }
70
71 /*
72 * v_screen_end --
73 * End a vi screen.
74 *
75 * PUBLIC: int v_screen_end(SCR *);
76 */
77 int
v_screen_end(SCR * sp)78 v_screen_end(SCR *sp)
79 {
80 VI_PRIVATE *vip;
81
82 if ((vip = VIP(sp)) == NULL)
83 return (0);
84 free(vip->keyw);
85 free(vip->rep);
86 free(vip->ps);
87 free(HMAP);
88 free(vip);
89 sp->vi_private = NULL;
90
91 return (0);
92 }
93
94 /*
95 * v_optchange --
96 * Handle change of options for vi.
97 *
98 * PUBLIC: int v_optchange(SCR *, int, char *, u_long *);
99 */
100 int
v_optchange(SCR * sp,int offset,char * str,u_long * valp)101 v_optchange(SCR *sp, int offset, char *str, u_long *valp)
102 {
103 switch (offset) {
104 case O_PARAGRAPHS:
105 return (v_buildps(sp, str, O_STR(sp, O_SECTIONS)));
106 case O_SECTIONS:
107 return (v_buildps(sp, O_STR(sp, O_PARAGRAPHS), str));
108 case O_WINDOW:
109 return (vs_crel(sp, *valp));
110 }
111 return (0);
112 }
113