dist/nvi/ex/ex_display.c

   1 /*      $NetBSD: ex_display.c,v 1.1.1.2 2008/05/18 14:31:14 aymeric 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 #ifndef lint
  15 static const char sccsid[] = "Id: ex_display.c,v 10.15 2001/06/25 15:19:15 skimo Exp (Berkeley) Date: 2001/06/25 15:19:15";
  16 #endif /* not lint */
  17
  18 #include <sys/types.h>
  19 #include <sys/queue.h>
  20
  21 #include <bitstring.h>
  22 #include <ctype.h>
  23 #include <limits.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26
  27 #include "../common/common.h"
  28 #include "tag.h"
  29
  30 static int      bdisplay __P((SCR *));
  31 static void     db __P((SCR *, CB *, const char *));
  32
  33 /*
  34  * ex_display -- :display b[uffers] | c[onnections] | s[creens] | t[ags]
  35  *
  36  *      Display cscope connections, buffers, tags or screens.
  37  *
  38  * PUBLIC: int ex_display __P((SCR *, EXCMD *));
  39  */
  40 int
  41 ex_display(SCR *sp, EXCMD *cmdp)
  42 {
  43         switch (cmdp->argv[0]->bp[0]) {
  44         case 'b':
  45 #undef  ARG
  46 #define ARG     "buffers"
  47                 if (cmdp->argv[0]->len >= sizeof(ARG) ||
  48                     memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
  49                         break;
  50                 return (bdisplay(sp));
  51         case 'c':
  52 #undef  ARG
  53 #define ARG     "connections"
  54                 if (cmdp->argv[0]->len >= sizeof(ARG) ||
  55                     memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
  56                         break;
  57                 return (cscope_display(sp));
  58         case 's':
  59 #undef  ARG
  60 #define ARG     "screens"
  61                 if (cmdp->argv[0]->len >= sizeof(ARG) ||
  62                     memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
  63                         break;
  64                 return (ex_sdisplay(sp));
  65         case 't':
  66 #undef  ARG
  67 #define ARG     "tags"
  68                 if (cmdp->argv[0]->len >= sizeof(ARG) ||
  69                     memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
  70                         break;
  71                 return (ex_tag_display(sp));
  72         }
  73         ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE);
  74         return (1);
  75 }
  76
  77 /*
  78  * bdisplay --
  79  *
  80  *      Display buffers.
  81  */
  82 static int
  83 bdisplay(SCR *sp)
  84 {
  85         CB *cbp;
  86
  87         if (sp->wp->cutq.lh_first == NULL && sp->wp->dcbp == NULL) {
  88                 msgq(sp, M_INFO, "123|No cut buffers to display");
  89                 return (0);
  90         }
  91
  92         /* Display regular cut buffers. */
  93         for (cbp = sp->wp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) {
  94                 if (isdigit(cbp->name))
  95                         continue;
  96                 if (cbp->textq.cqh_first != (void *)&cbp->textq)
  97                         db(sp, cbp, NULL);
  98                 if (INTERRUPTED(sp))
  99                         return (0);
 100         }
 101         /* Display numbered buffers. */
 102         for (cbp = sp->wp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) {
 103                 if (!isdigit(cbp->name))
 104                         continue;
 105                 if (cbp->textq.cqh_first != (void *)&cbp->textq)
 106                         db(sp, cbp, NULL);
 107                 if (INTERRUPTED(sp))
 108                         return (0);
 109         }
 110         /* Display default buffer. */
 111         if ((cbp = sp->wp->dcbp) != NULL)
 112                 db(sp, cbp, "default buffer");
 113         return (0);
 114 }
 115
 116 /*
 117  * db --
 118  *      Display a buffer.
 119  */
 120 static void
 121 db(SCR *sp, CB *cbp, const char *np)
 122 {
 123         CHAR_T *p;
 124         GS *gp;
 125         TEXT *tp;
 126         size_t len;
 127         const unsigned char *name = (const void *)np;
 128
 129         gp = sp->gp;
 130         (void)ex_printf(sp, "********** %s%s\n",
 131             name == NULL ? KEY_NAME(sp, cbp->name) : name,
 132             F_ISSET(cbp, CB_LMODE) ? " (line mode)" : " (character mode)");
 133         for (tp = cbp->textq.cqh_first;
 134             tp != (void *)&cbp->textq; tp = tp->q.cqe_next) {
 135                 for (len = tp->len, p = tp->lb; len--; ++p) {
 136                         (void)ex_puts(sp, (char *)KEY_NAME(sp, *p));
 137                         if (INTERRUPTED(sp))
 138                                 return;
 139                 }
 140                 (void)ex_puts(sp, "\n");
 141         }
 142 }