diff options
Diffstat (limited to 'usr.bin/vi/ex/ex_screen.c')
| -rw-r--r-- | usr.bin/vi/ex/ex_screen.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/usr.bin/vi/ex/ex_screen.c b/usr.bin/vi/ex/ex_screen.c new file mode 100644 index 000000000000..de0f946621af --- /dev/null +++ b/usr.bin/vi/ex/ex_screen.c @@ -0,0 +1,154 @@ +/*- + * Copyright (c) 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_screen.c 8.12 (Berkeley) 3/8/94"; +#endif /* not lint */ + +#include <sys/types.h> +#include <queue.h> +#include <sys/time.h> + +#include <bitstring.h> +#include <limits.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <termios.h> + +#include <db.h> +#include <regex.h> + +#include "vi.h" +#include "excmd.h" + +/* + * ex_split -- :s[plit] [file ...] + * Split the screen, optionally setting the file list. + */ +int +ex_split(sp, ep, cmdp) + SCR *sp; + EXF *ep; + EXCMDARG *cmdp; +{ + return (sp->s_split(sp, cmdp->argc ? cmdp->argv : NULL)); +} + +/* + * ex_bg -- :bg + * Hide the screen. + */ +int +ex_bg(sp, ep, cmdp) + SCR *sp; + EXF *ep; + EXCMDARG *cmdp; +{ + return (sp->s_bg(sp)); +} + +/* + * ex_fg -- :fg [file] + * Show the screen. + */ +int +ex_fg(sp, ep, cmdp) + SCR *sp; + EXF *ep; + EXCMDARG *cmdp; +{ + return (sp->s_fg(sp, cmdp->argc ? cmdp->argv[0]->bp : NULL)); +} + +/* + * ex_resize -- :resize [+-]rows + * Change the screen size. + */ +int +ex_resize(sp, ep, cmdp) + SCR *sp; + EXF *ep; + EXCMDARG *cmdp; +{ + enum adjust adj; + + if (!F_ISSET(cmdp, E_COUNT)) { + msgq(sp, M_ERR, "Usage: %s", cmdp->cmd->usage); + return (1); + } + if (F_ISSET(cmdp, E_COUNT_NEG)) + adj = A_DECREASE; + else if (F_ISSET(cmdp, E_COUNT_POS)) + adj = A_INCREASE; + else + adj = A_SET; + return (sp->s_rabs(sp, cmdp->count, adj)); +} + +/* + * ex_sdisplay -- + * Display the list of screens. + */ +int +ex_sdisplay(sp, ep) + SCR *sp; + EXF *ep; +{ + SCR *tsp; + int cnt, col, len, sep; + + if ((tsp = sp->gp->hq.cqh_first) == (void *)&sp->gp->hq) { + (void)ex_printf(EXCOOKIE, + "No backgrounded screens to display.\n"); + return (0); + } + + col = len = sep = 0; + for (cnt = 1; tsp != (void *)&sp->gp->hq; tsp = tsp->q.cqe_next) { + col += len = strlen(FILENAME(tsp->frp)) + sep; + if (col >= sp->cols - 1) { + col = len; + sep = 0; + (void)ex_printf(EXCOOKIE, "\n"); + } else if (cnt != 1) { + sep = 1; + (void)ex_printf(EXCOOKIE, " "); + } + (void)ex_printf(EXCOOKIE, "%s", FILENAME(tsp->frp)); + ++cnt; + } + (void)ex_printf(EXCOOKIE, "\n"); + return (0); +} |