dist/nvi/common/mark.h

   1 /*      $NetBSD$ */
   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  *      Id: mark.h,v 10.5 2000/07/14 14:29:16 skimo Exp (Berkeley) Date: 2000/07/14 14:29:16
  12  */
  13
  14 /*
  15  * The MARK and LMARK structures define positions in the file.  There are
  16  * two structures because the mark subroutines are the only places where
  17  * anything cares about something other than line and column.
  18  *
  19  * Because of the different interfaces used by the db(3) package, curses,
  20  * and users, the line number is 1 based and the column number is 0 based.
  21  * Additionally, it is known that the out-of-band line number is less than
  22  * any legal line number.  The line number is of type db_recno_t, as that's
  23  * the underlying type of the database.  The column number is of type size_t,
  24  * guaranteeing that we can malloc a line.
  25  */
  26 struct _mark {
  27 #define OOBLNO          0               /* Out-of-band line number. */
  28         db_recno_t       lno;                   /* Line number. */
  29         size_t   cno;                   /* Column number. */
  30 };
  31
  32 struct _lmark {
  33         LIST_ENTRY(_lmark) q;           /* Linked list of marks. */
  34         db_recno_t       lno;                   /* Line number. */
  35         size_t   cno;                   /* Column number. */
  36         /* XXXX Needed ? Can non ascii-chars be mark names ? */
  37         CHAR_T   name;                  /* Mark name. */
  38
  39 #define MARK_DELETED    0x01            /* Mark was deleted. */
  40 #define MARK_USERSET    0x02            /* User set this mark. */
  41         u_int8_t flags;
  42 };
  43
  44 #define ABSMARK1        '\''            /* Absolute mark name. */
  45 #define ABSMARK2        '`'             /* Absolute mark name. */