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/*-
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1992, 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "$Id: ex_display.c,v 10.15 2001/06/25 15:19:15 skimo Exp $";
#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 <stdio.h>
#include <string.h>
#include "../common/common.h"
#include "tag.h"
static int is_prefix __P((ARGS *, CHAR_T *));
static int bdisplay __P((SCR *));
static void db __P((SCR *, CB *, const char *));
/*
* ex_display -- :display b[uffers] | c[onnections] | s[creens] | t[ags]
*
* Display cscope connections, buffers, tags or screens.
*
* PUBLIC: int ex_display __P((SCR *, EXCMD *));
*/
int
ex_display(SCR *sp, EXCMD *cmdp)
{
ARGS *arg;
arg = cmdp->argv[0];
switch (arg->bp[0]) {
case 'b':
if (!is_prefix(arg, L("buffers")))
break;
return (bdisplay(sp));
case 'c':
if (!is_prefix(arg, L("connections")))
break;
return (cscope_display(sp));
case 's':
if (!is_prefix(arg, L("screens")))
break;
return (ex_sdisplay(sp));
case 't':
if (!is_prefix(arg, L("tags")))
break;
return (ex_tag_display(sp));
}
ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE);
return (1);
}
/*
* is_prefix --
*
* Check that a command argument matches a prefix of a given string.
*/
static int
is_prefix(ARGS *arg, CHAR_T *str)
{
return arg->len <= STRLEN(str) && !MEMCMP(arg->bp, str, arg->len);
}
/*
* bdisplay --
*
* Display buffers.
*/
static int
bdisplay(SCR *sp)
{
CB *cbp;
if (SLIST_EMPTY(sp->gp->cutq) && sp->gp->dcbp == NULL) {
msgq(sp, M_INFO, "123|No cut buffers to display");
return (0);
}
/* Display regular cut buffers. */
SLIST_FOREACH(cbp, sp->gp->cutq, q) {
if (isdigit(cbp->name))
continue;
if (!TAILQ_EMPTY(cbp->textq))
db(sp, cbp, NULL);
if (INTERRUPTED(sp))
return (0);
}
/* Display numbered buffers. */
SLIST_FOREACH(cbp, sp->gp->cutq, q) {
if (!isdigit(cbp->name))
continue;
if (!TAILQ_EMPTY(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(SCR *sp, CB *cbp, const char *name)
{
CHAR_T *p;
GS *gp;
TEXT *tp;
size_t len;
gp = sp->gp;
(void)ex_printf(sp, "********** %s%s\n",
name == NULL ? KEY_NAME(sp, cbp->name) : name,
F_ISSET(cbp, CB_LMODE) ? " (line mode)" : " (character mode)");
TAILQ_FOREACH(tp, cbp->textq, q) {
for (len = tp->len, p = tp->lb; len--; ++p) {
(void)ex_puts(sp, KEY_NAME(sp, *p));
if (INTERRUPTED(sp))
return;
}
(void)ex_puts(sp, "\n");
}
}
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