dist/nvi/vi/v_init.c

   1 /*      $NetBSD: v_init.c,v 1.1.1.2 2008/05/18 14:31:42 aymeric Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1992, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  * Copyright (c) 1992, 1993, 1994, 1995, 1996
   7  *      Keith Bostic.  All rights reserved.
   8  *
   9  * See the LICENSE file for redistribution information.
  10  */
  11
  12 #include "config.h"
  13
  14 #ifndef lint
  15 static const char sccsid[] = "Id: v_init.c,v 10.9 2001/06/25 15:19:31 skimo Exp (Berkeley) Date: 2001/06/25 15:19:31";
  16 #endif /* not lint */
  17
  18 #include <sys/types.h>
  19 #include <sys/queue.h>
  20 #include <sys/time.h>
  21
  22 #include <bitstring.h>
  23 #include <errno.h>
  24 #include <limits.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29 #include "../common/common.h"
  30 #include "vi.h"
  31
  32 /*
  33  * v_screen_copy --
  34  *      Copy vi screen.
  35  *
  36  * PUBLIC: int v_screen_copy __P((SCR *, SCR *));
  37  */
  38 int
  39 v_screen_copy(SCR *orig, SCR *sp)
  40 {
  41         VI_PRIVATE *ovip, *nvip;
  42
  43         /* Create the private vi structure. */
  44         CALLOC_RET(orig, nvip, VI_PRIVATE *, 1, sizeof(VI_PRIVATE));
  45         sp->vi_private = nvip;
  46
  47         /* Invalidate the line size cache. */
  48         VI_SCR_CFLUSH(nvip);
  49
  50         if (orig == NULL) {
  51                 nvip->csearchdir = CNOTSET;
  52         } else {
  53                 ovip = VIP(orig);
  54
  55                 /* User can replay the last input, but nothing else. */
  56                 if (ovip->rep_len != 0) {
  57                         MALLOC_RET(orig, nvip->rep, EVENT *, ovip->rep_len);
  58                         memmove(nvip->rep, ovip->rep, ovip->rep_len);
  59                         nvip->rep_len = ovip->rep_len;
  60                 }
  61
  62                 /* Copy the paragraph/section information. */
  63                 if (ovip->ps != NULL && (nvip->ps =
  64                     v_strdup(sp, ovip->ps, strlen(ovip->ps))) == NULL)
  65                         return (1);
  66
  67                 nvip->lastckey = ovip->lastckey;
  68                 nvip->csearchdir = ovip->csearchdir;
  69
  70                 nvip->srows = ovip->srows;
  71         }
  72         return (0);
  73 }
  74
  75 /*
  76  * v_screen_end --
  77  *      End a vi screen.
  78  *
  79  * PUBLIC: int v_screen_end __P((SCR *));
  80  */
  81 int
  82 v_screen_end(SCR *sp)
  83 {
  84         VI_PRIVATE *vip;
  85
  86         if ((vip = VIP(sp)) == NULL)
  87                 return (0);
  88         if (vip->keyw != NULL)
  89                 free(vip->keyw);
  90         if (vip->rep != NULL)
  91                 free(vip->rep);
  92         if (vip->ps != NULL)
  93                 free(vip->ps);
  94
  95         if (HMAP != NULL)
  96                 free(HMAP);
  97
  98         free(vip);
  99         sp->vi_private = NULL;
 100
 101         return (0);
 102 }
 103
 104 /*
 105  * v_optchange --
 106  *      Handle change of options for vi.
 107  *
 108  * PUBLIC: int v_optchange __P((SCR *, int, const char *, u_long *));
 109  */
 110 int
 111 v_optchange(SCR *sp, int offset, const char *str, u_long *valp)
 112 {
 113         switch (offset) {
 114         case O_PARAGRAPHS:
 115                 return (v_buildps(sp, str, O_STR(sp, O_SECTIONS)));
 116         case O_SECTIONS:
 117                 return (v_buildps(sp, O_STR(sp, O_PARAGRAPHS), str));
 118         case O_WINDOW:
 119                 return (vs_crel(sp, *valp));
 120         }
 121         return (0);
 122 }