1 /* $OpenBSD: v_put.c,v 1.8 2016/05/27 09:18:12 martijn 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 <limits.h>
20 #include <stdio.h>
21
22 #include "../common/common.h"
23 #include "vi.h"
24
25 static void inc_buf(SCR *, VICMD *);
26
27 /*
28 * v_Put -- [buffer]P
29 * Insert the contents of the buffer before the cursor.
30 *
31 * PUBLIC: int v_Put(SCR *, VICMD *);
32 */
33 int
v_Put(SCR * sp,VICMD * vp)34 v_Put(SCR *sp, VICMD *vp)
35 {
36 u_long cnt;
37
38 if (F_ISSET(vp, VC_ISDOT))
39 inc_buf(sp, vp);
40
41 /*
42 * !!!
43 * Historic vi did not support a count with the 'p' and 'P'
44 * commands. It's useful, so we do.
45 */
46 for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
47 if (put(sp, NULL,
48 F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
49 &vp->m_start, &vp->m_final, 0))
50 return (1);
51 vp->m_start = vp->m_final;
52 if (INTERRUPTED(sp))
53 return (1);
54 }
55 return (0);
56 }
57
58 /*
59 * v_put -- [buffer]p
60 * Insert the contents of the buffer after the cursor.
61 *
62 * PUBLIC: int v_put(SCR *, VICMD *);
63 */
64 int
v_put(SCR * sp,VICMD * vp)65 v_put(SCR *sp, VICMD *vp)
66 {
67 u_long cnt;
68
69 if (F_ISSET(vp, VC_ISDOT))
70 inc_buf(sp, vp);
71
72 /*
73 * !!!
74 * Historic vi did not support a count with the 'p' and 'P'
75 * commands. It's useful, so we do.
76 */
77 for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
78 if (put(sp, NULL,
79 F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
80 &vp->m_start, &vp->m_final, 1))
81 return (1);
82 vp->m_start = vp->m_final;
83 if (INTERRUPTED(sp))
84 return (1);
85 }
86 return (0);
87 }
88
89 /*
90 * !!!
91 * Historical whackadoo. The dot command `puts' the numbered buffer
92 * after the last one put. For example, `"4p.' would put buffer #4
93 * and buffer #5. If the user continued to enter '.', the #9 buffer
94 * would be repeatedly output. This was not documented, and is a bit
95 * tricky to reconstruct. Historical versions of vi also dropped the
96 * contents of the default buffer after each put, so after `"4p' the
97 * default buffer would be empty. This makes no sense to me, so we
98 * don't bother. Don't assume sequential order of numeric characters.
99 *
100 * And, if that weren't exciting enough, failed commands don't normally
101 * set the dot command. Well, boys and girls, an exception is that
102 * the buffer increment gets done regardless of the success of the put.
103 */
104 static void
inc_buf(SCR * sp,VICMD * vp)105 inc_buf(SCR *sp, VICMD *vp)
106 {
107 CHAR_T v;
108
109 switch (vp->buffer) {
110 case '1':
111 v = '2';
112 break;
113 case '2':
114 v = '3';
115 break;
116 case '3':
117 v = '4';
118 break;
119 case '4':
120 v = '5';
121 break;
122 case '5':
123 v = '6';
124 break;
125 case '6':
126 v = '7';
127 break;
128 case '7':
129 v = '8';
130 break;
131 case '8':
132 v = '9';
133 break;
134 default:
135 return;
136 }
137 VIP(sp)->sdot.buffer = vp->buffer = v;
138 }
139