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73 lines
3.2 KiB
C
73 lines
3.2 KiB
C
/*-
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mark.h 8.9 (Berkeley) 7/17/94
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*/
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/*
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* The MARK and LMARK structures define positions in the file. There are
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* two structures because the mark subroutines are the only places where
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* anything cares about something other than line and column.
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*
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* Because of the different interfaces used by the db(3) package, curses,
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* and users, the line number is 1 based and the column number is 0 based.
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* Additionally, it is known that the out-of-band line number is less than
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* any legal line number. The line number is of type recno_t, as that's
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* the underlying type of the database. The column number is of type size_t,
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* guaranteeing that we can malloc a line.
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*/
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struct _mark {
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#define OOBLNO 0 /* Out-of-band line number. */
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recno_t lno; /* Line number. */
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size_t cno; /* Column number. */
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};
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struct _lmark {
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LIST_ENTRY(_lmark) q; /* Linked list of marks. */
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recno_t lno; /* Line number. */
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size_t cno; /* Column number. */
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CHAR_T name; /* Mark name. */
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#define MARK_DELETED 0x01 /* Mark was deleted. */
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#define MARK_USERSET 0x02 /* User set this mark. */
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u_int8_t flags;
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};
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#define ABSMARK1 '\'' /* Absolute mark name. */
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#define ABSMARK2 '`' /* Absolute mark name. */
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/* Mark routines. */
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int mark_end __P((SCR *, EXF *));
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int mark_get __P((SCR *, EXF *, ARG_CHAR_T, MARK *));
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int mark_init __P((SCR *, EXF *));
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void mark_insdel __P((SCR *, EXF *, enum operation, recno_t));
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int mark_set __P((SCR *, EXF *, ARG_CHAR_T, MARK *, int));
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