1 files changed, 0 insertions, 635 deletions

diff --git a/usr.bin/vi/svi/svi_split.c b/usr.bin/vi/svi/svi_split.c
deleted file mode 100644
index dbf151c..0000000
--- a/usr.bin/vi/svi/svi_split.c
+++ /dev/null
@@ -1,635 +0,0 @@
-/*-
- * 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[] = "@(#)svi_split.c	8.49 (Berkeley) 8/17/94";
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <sys/queue.h>
-#include <sys/time.h>
-
-#include <bitstring.h>
-#include <errno.h>
-#include <limits.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <termios.h>
-
-#include "compat.h"
-#include <curses.h>
-#include <db.h>
-#include <regex.h>
-
-#include "vi.h"
-#include "svi_screen.h"
-
-/*
- * svi_split --
- *	Split the screen.
- */
-int
-svi_split(sp, argv, argc)
-	SCR *sp;
-	ARGS *argv[];
-	int argc;
-{
-	MSG *mp, *next;
-	SCR *tsp, saved_sp;
-	SVI_PRIVATE saved_svp;
-	SMAP *smp;
-	size_t cnt, half;
-	int issmallscreen, splitup;
-	char **ap;
-
-	/* Check to see if it's possible. */
-	half = sp->rows / 2;
-	if (half < MINIMUM_SCREEN_ROWS) {
-		msgq(sp, M_ERR, "Screen must be larger than %d to split",
-		     MINIMUM_SCREEN_ROWS);
-		return (1);
-	}
-
-	/* Get a new screen. */
-	if (screen_init(sp, &tsp, 0))
-		return (1);
-	CALLOC(sp, _HMAP(tsp), SMAP *, SIZE_HMAP(sp), sizeof(SMAP));
-	if (_HMAP(tsp) == NULL)
-		return (1);
-
-	/*
-	 * We're about to modify the current screen.  Save the contents
-	 * in case something goes horribly, senselessly wrong.
-	 */
-	saved_sp = *sp;
-	saved_svp = *SVP(sp);
-
-/* INITIALIZED AT SCREEN CREATE. */
-
-/* PARTIALLY OR COMPLETELY COPIED FROM PREVIOUS SCREEN. */
-	/*
-	 * Small screens: see svi/svi_refresh.c:svi_refresh, section 3b.
-	 * Set a flag so we know to fix the screen up later.
-	 */
-	issmallscreen = ISSMALLSCREEN(sp);
-
-	/*
-	 * Split the screen, and link the screens together.  If the cursor
-	 * is in the top half of the current screen, the new screen goes
-	 * under the current screen.  Else, it goes above the current screen.
-	 *
-	 * The columns in the screen don't change.
-	 */
-	tsp->cols = sp->cols;
-
-	cnt = svi_sm_cursor(sp, sp->ep, &smp) ? 0 : smp - HMAP;
-	if (cnt <= half) {			/* Parent is top half. */
-		/* Child. */
-		tsp->rows = sp->rows - half;
-		tsp->woff = sp->woff + half;
-		tsp->t_maxrows = tsp->rows - 1;
-
-		/* Parent. */
-		sp->rows = half;
-		sp->t_maxrows = sp->rows - 1;
-
-		splitup = 0;
-	} else {				/* Parent is bottom half. */
-		/* Child. */
-		tsp->rows = sp->rows - half;
-		tsp->woff = sp->woff;
-		tsp->t_maxrows = tsp->rows - 1;
-
-		/* Parent. */
-		sp->rows = half;
-		sp->woff += tsp->rows;
-		sp->t_maxrows = sp->rows - 1;
-
-		/* Shift the parent's map down. */
-		memmove(_HMAP(sp),
-		    _HMAP(sp) + tsp->rows, sp->t_maxrows * sizeof(SMAP));
-
-		splitup = 1;
-	}
-
-	/*
-	 * Small screens: see svi/svi_refresh.c:svi_refresh, section 3b.
-	 *
-	 * The child may have different screen options sizes than the
-	 * parent, so use them.  Make sure that the text counts aren't
-	 * larger than the new screen sizes.
-	 */
-	if (issmallscreen) {
-		/* Fix the text line count for the parent. */
-		if (splitup)
-			sp->t_rows -= tsp->rows;
-
-		/* Fix the parent screen. */
-		if (sp->t_rows > sp->t_maxrows)
-			sp->t_rows = sp->t_maxrows;
-		if (sp->t_minrows > sp->t_maxrows)
-			sp->t_minrows = sp->t_maxrows;
-
-		/* Fix the child screen. */
-		tsp->t_minrows = tsp->t_rows = O_VAL(sp, O_WINDOW);
-		if (tsp->t_rows > tsp->t_maxrows)
-			tsp->t_rows = tsp->t_maxrows;
-		if (tsp->t_minrows > tsp->t_maxrows)
-			tsp->t_minrows = tsp->t_maxrows;
-
-		/*
-		 * If we split up, i.e. the child is on top, lines that
-		 * were painted in the parent may not be painted in the
-		 * child.  Clear any lines not being used in the child
-		 * screen.
-		 *
-		 */
-		if (splitup)
-			for (cnt = tsp->t_rows; ++cnt <= tsp->t_maxrows;) {
-				MOVE(tsp, cnt, 0);
-				clrtoeol();
-			}
-	} else {
-		sp->t_minrows = sp->t_rows = sp->rows - 1;
-
-		/*
-		 * The new screen may be a small screen, even though the
-		 * parent was not.  Don't complain if O_WINDOW is too large,
-		 * we're splitting the screen so the screen is much smaller
-		 * than normal.  Clear any lines not being used in the child
-		 * screen.
-		 */
-		tsp->t_minrows = tsp->t_rows = O_VAL(sp, O_WINDOW);
-		if (tsp->t_rows > tsp->rows - 1)
-			tsp->t_minrows = tsp->t_rows = tsp->rows - 1;
-		else
-			for (cnt = tsp->t_rows; ++cnt <= tsp->t_maxrows;) {
-				MOVE(tsp, cnt, 0);
-				clrtoeol();
-			}
-	}
-
-	/* Adjust the ends of both maps. */
-	_TMAP(sp) = _HMAP(sp) + (sp->t_rows - 1);
-	_TMAP(tsp) = _HMAP(tsp) + (tsp->t_rows - 1);
-
-	/* Reset the length of the default scroll. */
-	sp->defscroll = sp->t_maxrows / 2;
-	tsp->defscroll = tsp->t_maxrows / 2;
-
-	/*
-	 * If files specified, build the file list, else, link to the
-	 * current file.
-	 */
-	if (argv == NULL) {
-		if ((tsp->frp = file_add(tsp, sp->frp->name)) == NULL)
-			goto err;
-	} else {
-		/* Create a new argument list. */
-		CALLOC(sp, tsp->argv, char **, argc + 1, sizeof(char *));
-		if (tsp->argv == NULL)
-			goto err;
-		for (ap = tsp->argv, argv; argv[0]->len != 0; ++ap, ++argv)
-			if ((*ap =
-			    v_strdup(sp, argv[0]->bp, argv[0]->len)) == NULL)
-				goto err;
-		*ap = NULL;
-
-		/* Switch to the first one. */
-		tsp->cargv = tsp->argv;
-		if ((tsp->frp = file_add(tsp, *tsp->cargv)) == NULL)
-			goto err;
-	}
-
-	/*
-	 * Copy the file state flags, start the file.  Fill the child's
-	 * screen map.  If the file is unchanged, keep the screen and
-	 * cursor the same.
-	 */
-	if (argv == NULL) {
-		tsp->ep = sp->ep;
-		++sp->ep->refcnt;
-
-		tsp->frp->flags = sp->frp->flags;
-		tsp->frp->lno = sp->lno;
-		tsp->frp->cno = sp->cno;
-		F_SET(tsp->frp, FR_CURSORSET);
-
-		/* Copy the parent's map into the child's map. */
-		memmove(_HMAP(tsp), _HMAP(sp), tsp->t_rows * sizeof(SMAP));
-	} else {
-		if (file_init(tsp, tsp->frp, NULL, 0))
-			goto err;
-		(void)svi_sm_fill(tsp, tsp->ep, 1, P_TOP);
-	}
-
-	/* Everything's initialized, put the screen on the displayed queue.*/
-	SIGBLOCK(sp->gp);
-	if (splitup) {
-		/* Link in before the parent. */
-		CIRCLEQ_INSERT_BEFORE(&sp->gp->dq, sp, tsp, q);
-	} else {
-		/* Link in after the parent. */
-		CIRCLEQ_INSERT_AFTER(&sp->gp->dq, sp, tsp, q);
-	}
-	SIGUNBLOCK(sp->gp);
-
-	/* Clear the current information lines in both screens. */
-	MOVE(sp, INFOLINE(sp), 0);
-	clrtoeol();
-	MOVE(tsp, INFOLINE(tsp), 0);
-	clrtoeol();
-
-	/* Redraw the status line for the parent screen. */
-	(void)msg_status(sp, sp->ep, sp->lno, 0);
-
-	/* Save the parent screen's cursor information. */
-	sp->frp->lno = sp->lno;
-	sp->frp->cno = sp->cno;
-	F_SET(sp->frp, FR_CURSORSET);
-
-	/* Completely redraw the child screen. */
-	F_SET(tsp, S_REDRAW);
-
-	/* Switch screens. */
-	sp->nextdisp = tsp;
-	F_SET(sp, S_SSWITCH);
-	return (0);
-
-	/* Recover the original screen. */
-err:	*sp = saved_sp;
-	*SVP(sp) = saved_svp;
-
-	/* Copy any (probably error) messages in the new screen. */
-	for (mp = tsp->msgq.lh_first; mp != NULL; mp = next) {
-		if (!F_ISSET(mp, M_EMPTY))
-			msg_app(sp->gp, sp,
-			    mp->flags & M_INV_VIDEO, mp->mbuf, mp->len);
-		next = mp->q.le_next;
-		if (mp->mbuf != NULL)
-			free(mp->mbuf);
-		free(mp);
-	}
-
-	/* Free the new screen. */
-	if (tsp->argv != NULL) {
-		for (ap = tsp->argv; *ap != NULL; ++ap)
-			free(*ap);
-		free(tsp->argv);
-	}
-	free(_HMAP(tsp));
-	free(SVP(tsp));
-	FREE(tsp, sizeof(SCR));
-	return (1);
-}
-
-/*
- * svi_bg --
- *	Background the screen, and switch to the next one.
- */
-int
-svi_bg(csp)
-	SCR *csp;
-{
-	SCR *sp;
-
-	/* Try and join with another screen. */
-	if ((svi_join(csp, &sp)))
-		return (1);
-	if (sp == NULL) {
-		msgq(csp, M_ERR,
-		    "You may not background your only displayed screen");
-		return (1);
-	}
-
-	/* Move the old screen to the hidden queue. */
-	SIGBLOCK(csp->gp);
-	CIRCLEQ_REMOVE(&csp->gp->dq, csp, q);
-	CIRCLEQ_INSERT_TAIL(&csp->gp->hq, csp, q);
-	SIGUNBLOCK(csp->gp);
-
-	/* Switch screens. */
-	csp->nextdisp = sp;
-	F_SET(csp, S_SSWITCH);
-
-	return (0);
-}
-
-/*
- * svi_join --
- *	Join the screen into a related screen, if one exists,
- *	and return that screen.
- */
-int
-svi_join(csp, nsp)
-	SCR *csp, **nsp;
-{
-	SCR *sp;
-	size_t cnt;
-
-	/*
-	 * If a split screen, add space to parent/child.  Make no effort
-	 * to clean up the screen's values.  If it's not exiting, we'll
-	 * get it when the user asks to show it again.
-	 */
-	if ((sp = csp->q.cqe_prev) == (void *)&csp->gp->dq) {
-		if ((sp = csp->q.cqe_next) == (void *)&csp->gp->dq) {
-			*nsp = NULL;
-			return (0);
-		}
-		sp->woff = csp->woff;
-	}
-	sp->rows += csp->rows;
-	if (ISSMALLSCREEN(sp)) {
-		sp->t_maxrows += csp->rows;
-		for (cnt = sp->t_rows; ++cnt <= sp->t_maxrows;) {
-			MOVE(sp, cnt, 0);
-			clrtoeol();
-		}
-		TMAP = HMAP + (sp->t_rows - 1);
-	} else {
-		sp->t_maxrows += csp->rows;
-		sp->t_rows = sp->t_minrows = sp->t_maxrows;
-		TMAP = HMAP + (sp->t_rows - 1);
-		if (svi_sm_fill(sp, sp->ep, sp->lno, P_FILL))
-			return (1);
-		F_SET(sp, S_REDRAW);
-	}
-
-	/* Reset the length of the default scroll. */
-	sp->defscroll = sp->t_maxrows / 2;
-
-	/*
-	 * Save the old screen's cursor information.
-	 *
-	 * XXX
-	 * If called after file_end(), if the underlying file was a tmp
-	 * file it may have gone away.
-	 */
-	if (csp->frp != NULL) {
-		csp->frp->lno = csp->lno;
-		csp->frp->cno = csp->cno;
-		F_SET(csp->frp, FR_CURSORSET);
-	}
-
-	*nsp = sp;
-	return (0);
-}
-
-/*
- * svi_fg --
- *	Background the current screen, and foreground a new one.
- */
-int
-svi_fg(csp, name)
-	SCR *csp;
-	CHAR_T *name;
-{
-	SCR *sp;
-
-	if (svi_swap(csp, &sp, name))
-		return (1);
-	if (sp == NULL) {
-		if (name == NULL)
-			msgq(csp, M_ERR, "There are no background screens");
-		else
-			msgq(csp, M_ERR,
-		    "There's no background screen editing a file named %s",
-			    name);
-		return (1);
-	}
-
-	/* Move the old screen to the hidden queue. */
-	SIGBLOCK(csp->gp);
-	CIRCLEQ_REMOVE(&csp->gp->dq, csp, q);
-	CIRCLEQ_INSERT_TAIL(&csp->gp->hq, csp, q);
-	SIGUNBLOCK(csp->gp);
-
-	return (0);
-}
-
-/*
- * svi_swap --
- *	Swap the current screen with a hidden one.
- */
-int
-svi_swap(csp, nsp, name)
-	SCR *csp, **nsp;
-	char *name;
-{
-	SCR *sp;
-	int issmallscreen;
-
-	/* Find the screen, or, if name is NULL, the first screen. */
-	for (sp = csp->gp->hq.cqh_first;
-	    sp != (void *)&csp->gp->hq; sp = sp->q.cqe_next)
-		if (name == NULL || !strcmp(sp->frp->name, name))
-			break;
-	if (sp == (void *)&csp->gp->hq) {
-		*nsp = NULL;
-		return (0);
-	}
-	*nsp = sp;
-
-	/*
-	 * Save the old screen's cursor information.
-	 *
-	 * XXX
-	 * If called after file_end(), if the underlying file was a tmp
-	 * file it may have gone away.
-	 */
-	if (csp->frp != NULL) {
-		csp->frp->lno = csp->lno;
-		csp->frp->cno = csp->cno;
-		F_SET(csp->frp, FR_CURSORSET);
-	}
-
-	/* Switch screens. */
-	csp->nextdisp = sp;
-	F_SET(csp, S_SSWITCH);
-
-	/* Initialize terminal information. */
-	SVP(sp)->srows = SVP(csp)->srows;
-
-	issmallscreen = ISSMALLSCREEN(sp);
-
-	/* Initialize screen information. */
-	sp->rows = csp->rows;
-	sp->cols = csp->cols;
-	sp->woff = csp->woff;
-
-	/*
-	 * Small screens: see svi/svi_refresh.c:svi_refresh, section 3b.
-	 *
-	 * The new screens may have different screen options sizes than the
-	 * old one, so use them.  Make sure that text counts aren't larger
-	 * than the new screen sizes.
-	 */
-	if (issmallscreen) {
-		sp->t_minrows = sp->t_rows = O_VAL(sp, O_WINDOW);
-		if (sp->t_rows > csp->t_maxrows)
-			sp->t_rows = sp->t_maxrows;
-		if (sp->t_minrows > csp->t_maxrows)
-			sp->t_minrows = sp->t_maxrows;
-	} else
-		sp->t_rows = sp->t_maxrows = sp->t_minrows = sp->rows - 1;
-
-	/* Reset the length of the default scroll. */
-	sp->defscroll = sp->t_maxrows / 2;
-
-	/*
-	 * Don't change the screen's cursor information other than to
-	 * note that the cursor is wrong.
-	 */
-	F_SET(SVP(sp), SVI_CUR_INVALID);
-
-	/*
-	 * The HMAP may be NULL, if the screen got resized and
-	 * a bunch of screens had to be hidden.
-	 */
-	if (HMAP == NULL)
-		CALLOC_RET(sp, HMAP, SMAP *, SIZE_HMAP(sp), sizeof(SMAP));
-	TMAP = HMAP + (sp->t_rows - 1);
-
-	/* Fill the map. */
-	if (svi_sm_fill(sp, sp->ep, sp->lno, P_FILL))
-		return (1);
-
-	/*
-	 * The new screen replaces the old screen in the parent/child list.
-	 * We insert the new screen after the old one.  If we're exiting,
-	 * the exit will delete the old one, if we're foregrounding, the fg
-	 * code will move the old one to the hidden queue.
-	 */
-	SIGBLOCK(sp->gp);
-	CIRCLEQ_REMOVE(&sp->gp->hq, sp, q);
-	CIRCLEQ_INSERT_AFTER(&csp->gp->dq, csp, sp, q);
-	SIGUNBLOCK(sp->gp);
-
-	F_SET(sp, S_REDRAW);
-	return (0);
-}
-
-/*
- * svi_rabs --
- *	Change the absolute size of the current screen.
- */
-int
-svi_rabs(sp, count, adj)
-	SCR *sp;
-	long count;
-	enum adjust adj;
-{
-	SCR *g, *s;
-
-	/*
-	 * Figure out which screens will grow, which will shrink, and
-	 * make sure it's possible.
-	 */
-	if (count == 0)
-		return (0);
-	if (adj == A_SET) {
-		if (sp->t_maxrows == count)
-			return (0);
-		if (sp->t_maxrows > count) {
-			adj = A_DECREASE;
-			count = sp->t_maxrows - count;
-		} else {
-			adj = A_INCREASE;
-			count = count - sp->t_maxrows;
-		}
-	}
-	if (adj == A_DECREASE) {
-		if (count < 0)
-			count = -count;
-		s = sp;
-		if (s->t_maxrows < MINIMUM_SCREEN_ROWS + count)
-			goto toosmall;
-		if ((g = sp->q.cqe_prev) == (void *)&sp->gp->dq) {
-			if ((g = sp->q.cqe_next) == (void *)&sp->gp->dq)
-				goto toobig;
-			g->woff -= count;
-		} else
-			s->woff += count;
-	} else {
-		g = sp;
-		if ((s = sp->q.cqe_next) != (void *)&sp->gp->dq)
-			if (s->t_maxrows < MINIMUM_SCREEN_ROWS + count)
-				s = NULL;
-			else
-				s->woff += count;
-		else
-			s = NULL;
-		if (s == NULL) {
-			if ((s = sp->q.cqe_prev) == (void *)&sp->gp->dq) {
-toobig:				msgq(sp, M_BERR, "The screen cannot %s",
-				    adj == A_DECREASE ? "shrink" : "grow");
-				return (1);
-			}
-			if (s->t_maxrows < MINIMUM_SCREEN_ROWS + count) {
-toosmall:			msgq(sp, M_BERR,
-				    "The screen can only shrink to %d rows",
-				    MINIMUM_SCREEN_ROWS);
-				return (1);
-			}
-			g->woff -= count;
-		}
-	}
-
-	/*
-	 * Update the screens; we could optimize the reformatting of the
-	 * screen, but this isn't likely to be a common enough operation
-	 * to make it worthwhile.
-	 */
-	g->rows += count;
-	g->t_rows += count;
-	if (g->t_minrows == g->t_maxrows)
-		g->t_minrows += count;
-	g->t_maxrows += count;
-	_TMAP(g) += count;
-	(void)msg_status(g, g->ep, g->lno, 0);
-	F_SET(g, S_REFORMAT);
-
-	s->rows -= count;
-	s->t_rows -= count;
-	s->t_maxrows -= count;
-	if (s->t_minrows > s->t_maxrows)
-		s->t_minrows = s->t_maxrows;
-	_TMAP(s) -= count;
-	(void)msg_status(s, s->ep, s->lno, 0);
-	F_SET(s, S_REFORMAT);
-
-	return (0);
-}