156 lines
3.8 KiB
C
156 lines
3.8 KiB
C
/*-
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* Copyright (c) 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)ex_screen.c 8.15 (Berkeley) 8/17/94";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/time.h>
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#include <bitstring.h>
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#include <limits.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include "compat.h"
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#include <db.h>
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#include <regex.h>
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#include "vi.h"
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#include "excmd.h"
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/*
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* ex_split -- :s[plit] [file ...]
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* Split the screen, optionally setting the file list.
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*/
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int
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ex_split(sp, ep, cmdp)
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SCR *sp;
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EXF *ep;
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EXCMDARG *cmdp;
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{
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return (sp->s_split(sp, cmdp->argc ? cmdp->argv : NULL, cmdp->argc));
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}
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/*
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* ex_bg -- :bg
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* Hide the screen.
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*/
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int
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ex_bg(sp, ep, cmdp)
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SCR *sp;
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EXF *ep;
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EXCMDARG *cmdp;
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{
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return (sp->s_bg(sp));
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}
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/*
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* ex_fg -- :fg [file]
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* Show the screen.
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*/
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int
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ex_fg(sp, ep, cmdp)
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SCR *sp;
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EXF *ep;
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EXCMDARG *cmdp;
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{
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return (sp->s_fg(sp, cmdp->argc ? cmdp->argv[0]->bp : NULL));
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}
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/*
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* ex_resize -- :resize [+-]rows
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* Change the screen size.
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*/
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int
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ex_resize(sp, ep, cmdp)
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SCR *sp;
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EXF *ep;
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EXCMDARG *cmdp;
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{
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enum adjust adj;
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if (!F_ISSET(cmdp, E_COUNT)) {
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msgq(sp, M_ERR, "Usage: %s", cmdp->cmd->usage);
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return (1);
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}
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if (F_ISSET(cmdp, E_COUNT_NEG))
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adj = A_DECREASE;
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else if (F_ISSET(cmdp, E_COUNT_POS))
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adj = A_INCREASE;
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else
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adj = A_SET;
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return (sp->s_rabs(sp, cmdp->count, adj));
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}
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/*
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* ex_sdisplay --
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* Display the list of screens.
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*/
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int
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ex_sdisplay(sp, ep)
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SCR *sp;
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EXF *ep;
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{
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SCR *tsp;
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int cnt, col, len, sep;
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if ((tsp = sp->gp->hq.cqh_first) == (void *)&sp->gp->hq) {
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(void)ex_printf(EXCOOKIE,
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"No backgrounded screens to display.\n");
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return (0);
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}
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col = len = sep = 0;
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for (cnt = 1; tsp != (void *)&sp->gp->hq; tsp = tsp->q.cqe_next) {
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col += len = strlen(tsp->frp->name) + sep;
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if (col >= sp->cols - 1) {
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col = len;
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sep = 0;
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(void)ex_printf(EXCOOKIE, "\n");
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} else if (cnt != 1) {
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sep = 1;
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(void)ex_printf(EXCOOKIE, " ");
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}
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(void)ex_printf(EXCOOKIE, "%s", tsp->frp->name);
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++cnt;
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}
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(void)ex_printf(EXCOOKIE, "\n");
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return (0);
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}
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