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      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. */
     45