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 <limits.h>
18 #include <stdio.h>
19
20 #include "../common/common.h"
21 #include "vi.h"
22
23 static void inc_buf(SCR *, VICMD *);
24
25 /*
26 * v_Put -- [buffer]P
27 * Insert the contents of the buffer before the cursor.
28 *
29 * PUBLIC: int v_Put(SCR *, VICMD *);
30 */
31 int
v_Put(SCR * sp,VICMD * vp)32 v_Put(SCR *sp, VICMD *vp)
33 {
34 u_long cnt;
35
36 if (F_ISSET(vp, VC_ISDOT))
37 inc_buf(sp, vp);
38
39 /*
40 * !!!
41 * Historic vi did not support a count with the 'p' and 'P'
42 * commands. It's useful, so we do.
43 */
44 cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1;
45 if (put(sp, NULL,
46 F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
47 &vp->m_start, &vp->m_final, 0, cnt))
48 return (1);
49
50 return (0);
51 }
52
53 /*
54 * v_put -- [buffer]p
55 * Insert the contents of the buffer after the cursor.
56 *
57 * PUBLIC: int v_put(SCR *, VICMD *);
58 */
59 int
v_put(SCR * sp,VICMD * vp)60 v_put(SCR *sp, VICMD *vp)
61 {
62 u_long cnt;
63
64 if (F_ISSET(vp, VC_ISDOT))
65 inc_buf(sp, vp);
66
67 /*
68 * !!!
69 * Historic vi did not support a count with the 'p' and 'P'
70 * commands. It's useful, so we do.
71 *
72 * The cursor placement of an individual 'p' and 'P' used to
73 * affect the content when a count is presented. Now we let
74 * the command implementation be count-aware instead.
75 */
76 cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1;
77 if (put(sp, NULL,
78 F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
79 &vp->m_start, &vp->m_final, 1, cnt))
80 return (1);
81
82 return (0);
83 }
84
85 /*
86 * !!!
87 * Historical whackadoo. The dot command `puts' the numbered buffer
88 * after the last one put. For example, `"4p.' would put buffer #4
89 * and buffer #5. If the user continued to enter '.', the #9 buffer
90 * would be repeatedly output. This was not documented, and is a bit
91 * tricky to reconstruct. Historical versions of vi also dropped the
92 * contents of the default buffer after each put, so after `"4p' the
93 * default buffer would be empty. This makes no sense to me, so we
94 * don't bother. Don't assume sequential order of numeric characters.
95 *
96 * And, if that weren't exciting enough, failed commands don't normally
97 * set the dot command. Well, boys and girls, an exception is that
98 * the buffer increment gets done regardless of the success of the put.
99 */
100 static void
inc_buf(SCR * sp,VICMD * vp)101 inc_buf(SCR *sp, VICMD *vp)
102 {
103 CHAR_T v;
104
105 switch (vp->buffer) {
106 case '1':
107 v = '2';
108 break;
109 case '2':
110 v = '3';
111 break;
112 case '3':
113 v = '4';
114 break;
115 case '4':
116 v = '5';
117 break;
118 case '5':
119 v = '6';
120 break;
121 case '6':
122 v = '7';
123 break;
124 case '7':
125 v = '8';
126 break;
127 case '8':
128 v = '9';
129 break;
130 default:
131 return;
132 }
133 VIP(sp)->sdot.buffer = vp->buffer = v;
134 }
135