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 10.15 2001/06/25 15:19:15 skimo Exp $ (Berkeley) $Date: 2001/06/25 15:19:15 $";
  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(SCR *sp, EXCMD *cmdp)
  40 {
  41         switch (cmdp->argv[0]->bp[0]) {
  42         case 'b':
  43 #undef  ARG
  44 #define ARG     "buffers"
  45                 if (cmdp->argv[0]->len >= sizeof(ARG) ||
  46                     memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
  47                         break;
  48                 return (bdisplay(sp));
  49         case 'c':
  50 #undef  ARG
  51 #define ARG     "connections"
  52                 if (cmdp->argv[0]->len >= sizeof(ARG) ||
  53                     memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
  54                         break;
  55                 return (cscope_display(sp));
  56         case 's':
  57 #undef  ARG
  58 #define ARG     "screens"
  59                 if (cmdp->argv[0]->len >= sizeof(ARG) ||
  60                     memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
  61                         break;
  62                 return (ex_sdisplay(sp));
  63         case 't':
  64 #undef  ARG
  65 #define ARG     "tags"
  66                 if (cmdp->argv[0]->len >= sizeof(ARG) ||
  67                     memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
  68                         break;
  69                 return (ex_tag_display(sp));
  70         }
  71         ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE);
  72         return (1);
  73 }
  74
  75 /*
  76  * bdisplay --
  77  *
  78  *      Display buffers.
  79  */
  80 static int
  81 bdisplay(SCR *sp)
  82 {
  83         CB *cbp;
  84
  85         if (sp->wp->cutq.lh_first == NULL && sp->wp->dcbp == NULL) {
  86                 msgq(sp, M_INFO, "123|No cut buffers to display");
  87                 return (0);
  88         }
  89
  90         /* Display regular cut buffers. */
  91         for (cbp = sp->wp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) {
  92                 if (isdigit(cbp->name))
  93                         continue;
  94                 if (cbp->textq.cqh_first != (void *)&cbp->textq)
  95                         db(sp, cbp, NULL);
  96                 if (INTERRUPTED(sp))
  97                         return (0);
  98         }
  99         /* Display numbered buffers. */
 100         for (cbp = sp->wp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) {
 101                 if (!isdigit(cbp->name))
 102                         continue;
 103                 if (cbp->textq.cqh_first != (void *)&cbp->textq)
 104                         db(sp, cbp, NULL);
 105                 if (INTERRUPTED(sp))
 106                         return (0);
 107         }
 108         /* Display default buffer. */
 109         if ((cbp = sp->wp->dcbp) != NULL)
 110                 db(sp, cbp, "default buffer");
 111         return (0);
 112 }
 113
 114 /*
 115  * db --
 116  *      Display a buffer.
 117  */
 118 static void
 119 db(SCR *sp, CB *cbp, u_char *name)
 120 {
 121         CHAR_T *p;
 122         GS *gp;
 123         TEXT *tp;
 124         size_t len;
 125
 126         gp = sp->gp;
 127         (void)ex_printf(sp, "********** %s%s\n",
 128             name == NULL ? KEY_NAME(sp, cbp->name) : name,
 129             F_ISSET(cbp, CB_LMODE) ? " (line mode)" : " (character mode)");
 130         for (tp = cbp->textq.cqh_first;
 131             tp != (void *)&cbp->textq; tp = tp->q.cqe_next) {
 132                 for (len = tp->len, p = tp->lb; len--; ++p) {
 133                         (void)ex_puts(sp, KEY_NAME(sp, *p));
 134                         if (INTERRUPTED(sp))
 135                                 return;
 136                 }
 137                 (void)ex_puts(sp, "\n");
 138         }
 139 }