vi/v_put.c

   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 #ifndef lint
  13 static const char sccsid[] = "$Id: v_put.c,v 10.5 1996/03/06 19:54:29 bostic Exp $ (Berkeley) $Date: 1996/03/06 19:54:29 $";
  14 #endif /* not lint */
  15
  16 #include <sys/types.h>
  17 #include <sys/queue.h>
  18 #include <sys/time.h>
  19
  20 #include <bitstring.h>
  21 #include <limits.h>
  22 #include <stdio.h>
  23
  24 #include "../common/common.h"
  25 #include "vi.h"
  26
  27 static void     inc_buf __P((SCR *, VICMD *));
  28
  29 /*
  30  * v_Put -- [buffer]P
  31  *      Insert the contents of the buffer before the cursor.
  32  *
  33  * PUBLIC: int v_Put __P((SCR *, VICMD *));
  34  */
  35 int
  36 v_Put(sp, vp)
  37         SCR *sp;
  38         VICMD *vp;
  39 {
  40         u_long cnt;
  41
  42         if (F_ISSET(vp, VC_ISDOT))
  43                 inc_buf(sp, vp);
  44
  45         /*
  46          * !!!
  47          * Historic vi did not support a count with the 'p' and 'P'
  48          * commands.  It's useful, so we do.
  49          */
  50         for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
  51                 if (put(sp, NULL,
  52                     F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
  53                     &vp->m_start, &vp->m_final, 0))
  54                         return (1);
  55                 vp->m_start = vp->m_final;
  56                 if (INTERRUPTED(sp))
  57                         return (1);
  58         }
  59         return (0);
  60 }
  61
  62 /*
  63  * v_put -- [buffer]p
  64  *      Insert the contents of the buffer after the cursor.
  65  *
  66  * PUBLIC: int v_put __P((SCR *, VICMD *));
  67  */
  68 int
  69 v_put(sp, vp)
  70         SCR *sp;
  71         VICMD *vp;
  72 {
  73         u_long cnt;
  74
  75         if (F_ISSET(vp, VC_ISDOT))
  76                 inc_buf(sp, vp);
  77
  78         /*
  79          * !!!
  80          * Historic vi did not support a count with the 'p' and 'P'
  81          * commands.  It's useful, so we do.
  82          */
  83         for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
  84                 if (put(sp, NULL,
  85                     F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
  86                     &vp->m_start, &vp->m_final, 1))
  87                         return (1);
  88                 vp->m_start = vp->m_final;
  89                 if (INTERRUPTED(sp))
  90                         return (1);
  91         }
  92         return (0);
  93 }
  94
  95 /*
  96  * !!!
  97  * Historical whackadoo.  The dot command `puts' the numbered buffer
  98  * after the last one put.  For example, `"4p.' would put buffer #4
  99  * and buffer #5.  If the user continued to enter '.', the #9 buffer
 100  * would be repeatedly output.  This was not documented, and is a bit
 101  * tricky to reconstruct.  Historical versions of vi also dropped the
 102  * contents of the default buffer after each put, so after `"4p' the
 103  * default buffer would be empty.  This makes no sense to me, so we
 104  * don't bother.  Don't assume sequential order of numeric characters.
 105  *
 106  * And, if that weren't exciting enough, failed commands don't normally
 107  * set the dot command.  Well, boys and girls, an exception is that
 108  * the buffer increment gets done regardless of the success of the put.
 109  */
 110 static void
 111 inc_buf(sp, vp)
 112         SCR *sp;
 113         VICMD *vp;
 114 {
 115         CHAR_T v;
 116
 117         switch (vp->buffer) {
 118         case '1':
 119                 v = '2';
 120                 break;
 121         case '2':
 122                 v = '3';
 123                 break;
 124         case '3':
 125                 v = '4';
 126                 break;
 127         case '4':
 128                 v = '5';
 129                 break;
 130         case '5':
 131                 v = '6';
 132                 break;
 133         case '6':
 134                 v = '7';
 135                 break;
 136         case '7':
 137                 v = '8';
 138                 break;
 139         case '8':
 140                 v = '9';
 141                 break;
 142         default:
 143                 return;
 144         }
 145         VIP(sp)->sdot.buffer = vp->buffer = v;
 146 }