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