Oh GACK! src-clean doesn't quite work that easily since cleandist rebuilds the

[unix-history] / usr.bin / vi / nex / ex_display.c

/*-
* Copyright (c) 1992, 1993
*      The Regents of the University of California.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#ifndef lint
static char sccsid[] = "@(#)ex_display.c        8.14 (Berkeley) 1/9/94";
#endif /* not lint */

#include <sys/types.h>

#include <ctype.h>
#include <string.h>

#include "vi.h"
#include "tag.h"
#include "excmd.h"

static int      bdisplay __P((SCR *, EXF *));
static void     db __P((SCR *, CB *, char *));

/*
* ex_display -- :display b[uffers] | s[creens] | t[ags]
*
*      Display buffers, tags or screens.
*/
int
ex_display(sp, ep, cmdp)
       SCR *sp;
       EXF *ep;
       EXCMDARG *cmdp;
{
       switch (cmdp->argv[0]->bp[0]) {
       case 'b':
               return (bdisplay(sp, ep));
       case 's':
               return (ex_sdisplay(sp, ep));
       case 't':
               return (ex_tagdisplay(sp, ep));
       }
       msgq(sp, M_ERR,
           "Unknown display argument %s, use b[uffers], s[creens], or t[ags].",
           cmdp->argv[0]);
       return (1);
}

/*
* bdisplay --
*
*      Display buffers.
*/
static int
bdisplay(sp, ep)
       SCR *sp;
       EXF *ep;
{
       CB *cbp;

       if (sp->gp->cutq.lh_first == NULL && sp->gp->dcbp == NULL) {
               (void)ex_printf(EXCOOKIE, "No cut buffers to display.");
               return (0);
       }

       /* Buffers can be infinitely long, make it interruptible. */
       F_SET(sp, S_INTERRUPTIBLE);

       /* Display regular cut buffers. */
       for (cbp = sp->gp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) {
               if (isdigit(cbp->name))
                       continue;
               if (cbp->textq.cqh_first != (void *)&cbp->textq)
                       db(sp, cbp, NULL);
               if (F_ISSET(sp, S_INTERRUPTED))
                       return (0);
       }
       /* Display numbered buffers. */
       for (cbp = sp->gp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) {
               if (!isdigit(cbp->name))
                       continue;
               if (cbp->textq.cqh_first != (void *)&cbp->textq)
                       db(sp, cbp, NULL);
               if (F_ISSET(sp, S_INTERRUPTED))
                       return (0);
       }
       /* Display default buffer. */
       if ((cbp = sp->gp->dcbp) != NULL)
               db(sp, cbp, "default buffer");
       return (0);
}

/*
* db --
*      Display a buffer.
*/
static void
db(sp, cbp, name)
       SCR *sp;
       CB *cbp;
       char *name;
{
       TEXT *tp;
       size_t len;
       char *p;

       (void)ex_printf(EXCOOKIE, "********** %s%s\n",
           name == NULL ? charname(sp, cbp->name) : name,
           F_ISSET(cbp, CB_LMODE) ? " (line mode)" : "");
       for (tp = cbp->textq.cqh_first;
           tp != (void *)&cbp->textq; tp = tp->q.cqe_next) {
               for (len = tp->len, p = tp->lb; len--;) {
                       (void)ex_printf(EXCOOKIE, "%s", charname(sp, *p++));
                       if (F_ISSET(sp, S_INTERRUPTED))
                               return;
               }
               (void)ex_printf(EXCOOKIE, "\n");
       }
}