freebsd-skq/usr.bin/vi/ex/ex_display.c
sef 66a93b861e Bringing in version 1.34.
Reviewed by:	 Sean Eric Fagan
1994-08-18 01:13:30 +00:00

170 lines
4.6 KiB
C

/*-
* Copyright (c) 1992, 1993, 1994
* 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 8.23 (Berkeley) 8/17/94";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>
#include <bitstring.h>
#include <ctype.h>
#include <limits.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <termios.h>
#include "compat.h"
#include <db.h>
#include <regex.h>
#include "vi.h"
#include "tag.h"
#include "excmd.h"
static int bdisplay __P((SCR *, EXF *));
static void db __P((SCR *, CB *, CHAR_T *));
/*
* 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':
#undef ARG
#define ARG "buffers"
if (cmdp->argv[0]->len >= sizeof(ARG) ||
memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
break;
return (bdisplay(sp, ep));
case 's':
#undef ARG
#define ARG "screens"
if (cmdp->argv[0]->len >= sizeof(ARG) ||
memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
break;
return (ex_sdisplay(sp, ep));
case 't':
#undef ARG
#define ARG "tags"
if (cmdp->argv[0]->len >= sizeof(ARG) ||
memcmp(cmdp->argv[0]->bp, ARG, cmdp->argv[0]->len))
break;
return (ex_tagdisplay(sp, ep));
}
msgq(sp, M_ERR, "Usage: %s", cmdp->cmd->usage);
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.\n");
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 (INTERRUPTED(sp))
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 (INTERRUPTED(sp))
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_T *name;
{
CHAR_T *p;
TEXT *tp;
size_t len;
(void)ex_printf(EXCOOKIE, "********** %s%s\n",
name == NULL ? KEY_NAME(sp, cbp->name) : name,
F_ISSET(cbp, CB_LMODE) ? " (line mode)" : " (character mode)");
for (tp = cbp->textq.cqh_first;
tp != (void *)&cbp->textq; tp = tp->q.cqe_next) {
for (len = tp->len, p = tp->lb; len--; ++p) {
(void)ex_printf(EXCOOKIE, "%s", KEY_NAME(sp, *p));
if (INTERRUPTED(sp))
return;
}
(void)ex_printf(EXCOOKIE, "\n");
}
}