freebsd-dev/contrib/nvi/vi/v_init.c

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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: v_init.c,v 10.10 2012/02/11 00:33:46 zy Exp $";
#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.
*
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* PUBLIC: int v_screen_copy(SCR *, SCR *);
*/
int
v_screen_copy(SCR *orig, SCR *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 match characters information. */
if (ovip->mcs != NULL && (nvip->mcs =
v_wstrdup(sp, ovip->mcs, STRLEN(ovip->mcs))) == NULL)
return (1);
/* 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.
*
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* PUBLIC: int v_screen_end(SCR *);
*/
int
v_screen_end(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->mcs != NULL)
free(vip->mcs);
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.
*
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* PUBLIC: int v_optchange(SCR *, int, char *, u_long *);
*/
int
v_optchange(SCR *sp, int offset, char *str, u_long *valp)
{
switch (offset) {
case O_MATCHCHARS:
return (v_buildmcs(sp, str));
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);
}