external/bsd/nvi/dist/common/mark.h

   1 /*      $NetBSD: mark.h,v 1.2 2013/11/22 15:52:05 christos Exp $        */
   2 /*-
   3  * Copyright (c) 1992, 1993, 1994
   4  *      The Regents of the University of California.  All rights reserved.
   5  * Copyright (c) 1992, 1993, 1994, 1995, 1996
   6  *      Keith Bostic.  All rights reserved.
   7  *
   8  * See the LICENSE file for redistribution information.
   9  *
  10  *      Id: mark.h,v 10.5 2000/07/14 14:29:16 skimo Exp  (Berkeley) Date: 2000/07/14 14:29:16
  11  */
  12
  13 /*
  14  * The MARK and LMARK structures define positions in the file.  There are
  15  * two structures because the mark subroutines are the only places where
  16  * anything cares about something other than line and column.
  17  *
  18  * Because of the different interfaces used by the db(3) package, curses,
  19  * and users, the line number is 1 based and the column number is 0 based.
  20  * Additionally, it is known that the out-of-band line number is less than
  21  * any legal line number.  The line number is of type db_recno_t, as that's
  22  * the underlying type of the database.  The column number is of type size_t,
  23  * guaranteeing that we can malloc a line.
  24  */
  25 struct _mark {
  26 #define OOBLNO          0               /* Out-of-band line number. */
  27         db_recno_t       lno;                   /* Line number. */
  28         size_t   cno;                   /* Column number. */
  29 };
  30
  31 struct _lmark {
  32         LIST_ENTRY(_lmark) q;           /* Linked list of marks. */
  33         db_recno_t       lno;                   /* Line number. */
  34         size_t   cno;                   /* Column number. */
  35         /* XXXX Needed ? Can non ascii-chars be mark names ? */
  36         CHAR_T   name;                  /* Mark name. */
  37
  38 #define MARK_DELETED    0x01            /* Mark was deleted. */
  39 #define MARK_USERSET    0x02            /* User set this mark. */
  40         u_int8_t flags;
  41 };
  42
  43 #define ABSMARK1        '\''            /* Absolute mark name. */
  44 #define ABSMARK2        '`'             /* Absolute mark name. */