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freebsd/contrib/nvi/vi/v_init.c
Peter Wemm b8ba871bd9 Import of nvi-1.79, minus a few bits that we dont need (eg: postscript
files, curses, db, regex etc that we already have).  The other glue will
follow shortly.

Obtained from: Keith Bostic <bostic@bostic.com>
1996-11-01 06:45:43 +00:00

127 lines
2.4 KiB
C

/*-
* 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[] = "@(#)v_init.c 10.8 (Berkeley) 3/30/96";
#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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../common/common.h"
#include "vi.h"
/*
* v_screen_copy --
* Copy vi screen.
*
* PUBLIC: int v_screen_copy __P((SCR *, SCR *));
*/
int
v_screen_copy(orig, sp)
SCR *orig, *sp;
{
VI_PRIVATE *ovip, *nvip;
/* Create the private vi structure. */
CALLOC_RET(orig, nvip, VI_PRIVATE *, 1, sizeof(VI_PRIVATE));
sp->vi_private = nvip;
/* Invalidate the line size cache. */
VI_SCR_CFLUSH(nvip);
if (orig == NULL) {
nvip->csearchdir = CNOTSET;
} else {
ovip = VIP(orig);
/* User can replay the last input, but nothing else. */
if (ovip->rep_len != 0) {
MALLOC_RET(orig, nvip->rep, EVENT *, ovip->rep_len);
memmove(nvip->rep, ovip->rep, ovip->rep_len);
nvip->rep_len = ovip->rep_len;
}
/* Copy the paragraph/section information. */
if (ovip->ps != NULL && (nvip->ps =
v_strdup(sp, ovip->ps, strlen(ovip->ps))) == NULL)
return (1);
nvip->lastckey = ovip->lastckey;
nvip->csearchdir = ovip->csearchdir;
nvip->srows = ovip->srows;
}
return (0);
}
/*
* v_screen_end --
* End a vi screen.
*
* PUBLIC: int v_screen_end __P((SCR *));
*/
int
v_screen_end(sp)
SCR *sp;
{
VI_PRIVATE *vip;
if ((vip = VIP(sp)) == NULL)
return (0);
if (vip->keyw != NULL)
free(vip->keyw);
if (vip->rep != NULL)
free(vip->rep);
if (vip->ps != NULL)
free(vip->ps);
if (HMAP != NULL)
free(HMAP);
free(vip);
sp->vi_private = NULL;
return (0);
}
/*
* v_optchange --
* Handle change of options for vi.
*
* PUBLIC: int v_optchange __P((SCR *, int, char *, u_long *));
*/
int
v_optchange(sp, offset, str, valp)
SCR *sp;
int offset;
char *str;
u_long *valp;
{
switch (offset) {
case O_PARAGRAPHS:
return (v_buildps(sp, str, O_STR(sp, O_SECTIONS)));
case O_SECTIONS:
return (v_buildps(sp, O_STR(sp, O_PARAGRAPHS), str));
case O_WINDOW:
return (vs_crel(sp, *valp));
}
return (0);
}