NetBSD/usr.bin/vi/seq.h

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/*-
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)seq.h 8.9 (Berkeley) 3/16/94
*/
/*
* Map and abbreviation structures.
*
* The map structure is doubly linked list, sorted by input string and by
* input length within the string. (The latter is necessary so that short
* matches will happen before long matches when the list is searched.)
* Additionally, there is a bitmap which has bits set if there are entries
* starting with the corresponding character. This keeps us from walking
* the list unless it's necessary.
*
* The name and the output fields of a SEQ can be empty, i.e. NULL.
* Only the input field is required.
*
* XXX
* The fast-lookup bits are never turned off -- users don't usually unmap
* things, though, so it's probably not a big deal.
*/
/* Sequence type. */
enum seqtype { SEQ_ABBREV, SEQ_COMMAND, SEQ_INPUT };
struct _seq {
LIST_ENTRY(_seq) q; /* Linked list of all sequences. */
enum seqtype stype; /* Sequence type. */
char *name; /* Sequence name (if any). */
size_t nlen; /* Name length. */
char *input; /* Sequence input keys. */
size_t ilen; /* Input keys length. */
char *output; /* Sequence output keys. */
size_t olen; /* Output keys length. */
#define S_USERDEF 0x01 /* If sequence user defined. */
u_char flags;
};
int abbr_save __P((SCR *, FILE *));
int map_save __P((SCR *, FILE *));
int seq_delete __P((SCR *, char *, size_t, enum seqtype));
int seq_dump __P((SCR *, enum seqtype, int));
SEQ *seq_find __P((SCR *, SEQ **, char *, size_t, enum seqtype, int *));
void seq_init __P((SCR *));
int seq_save __P((SCR *, FILE *, char *, enum seqtype));
int seq_set __P((SCR *, char *, size_t,
char *, size_t, char *, size_t, enum seqtype, int));