ex/ex_display.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: ex_display.c,v 10.14 2000/07/22 17:31:21 skimo Exp $ (Berkeley) $Date: 2000/07/22 17:31:21 $";
  14 #endif /* not lint */
  15
  16 #include <sys/types.h>
  17 #include <sys/queue.h>
  18
  19 #include <bitstring.h>
  20 #include <ctype.h>
  21 #include <limits.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24
  25 #include "../common/common.h"
  26 #include "tag.h"
  27
  28 static int      bdisplay __P((SCR *));
  29 static void     db __P((SCR *, CB *, u_char *));
  30
  31 /*
  32  * ex_display -- :display b[uffers] | c[onnections] | s[creens] | t[ags]
  33  *
  34  *      Display cscope connections, buffers, tags or screens.
  35  *
  36  * PUBLIC: int ex_display __P((SCR *, EXCMD *));
  37  */
  38 int
  39 ex_display(sp, cmdp)
  40         SCR *sp;
  41         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(sp)
  84         SCR *sp;
  85 {
  86         CB *cbp;
  87
  88         if (sp->wp->cutq.lh_first == NULL && sp->wp->dcbp == NULL) {
  89                 msgq(sp, M_INFO, "123|No cut buffers to display");
  90                 return (0);
  91         }
  92
  93         /* Display regular cut buffers. */
  94         for (cbp = sp->wp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) {
  95                 if (isdigit(cbp->name))
  96                         continue;
  97                 if (cbp->textq.cqh_first != (void *)&cbp->textq)
  98                         db(sp, cbp, NULL);
  99                 if (INTERRUPTED(sp))
 100                         return (0);
 101         }
 102         /* Display numbered buffers. */
 103         for (cbp = sp->wp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) {
 104                 if (!isdigit(cbp->name))
 105                         continue;
 106                 if (cbp->textq.cqh_first != (void *)&cbp->textq)
 107                         db(sp, cbp, NULL);
 108                 if (INTERRUPTED(sp))
 109                         return (0);
 110         }
 111         /* Display default buffer. */
 112         if ((cbp = sp->wp->dcbp) != NULL)
 113                 db(sp, cbp, "default buffer");
 114         return (0);
 115 }
 116
 117 /*
 118  * db --
 119  *      Display a buffer.
 120  */
 121 static void
 122 db(sp, cbp, name)
 123         SCR *sp;
 124         CB *cbp;
 125         u_char *name;
 126 {
 127         CHAR_T *p;
 128         GS *gp;
 129         TEXT *tp;
 130         size_t len;
 131
 132         gp = sp->gp;
 133         (void)ex_printf(sp, "********** %s%s\n",
 134             name == NULL ? KEY_NAME(sp, cbp->name) : name,
 135             F_ISSET(cbp, CB_LMODE) ? " (line mode)" : " (character mode)");
 136         for (tp = cbp->textq.cqh_first;
 137             tp != (void *)&cbp->textq; tp = tp->q.cqe_next) {
 138                 for (len = tp->len, p = tp->lb; len--; ++p) {
 139                         (void)ex_puts(sp, KEY_NAME(sp, *p));
 140                         if (INTERRUPTED(sp))
 141                                 return;
 142                 }
 143                 (void)ex_puts(sp, "\n");
 144         }
 145 }