common/seq.h

   1 /*-
   2  * Copyright (c) 1992, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * %sccs.include.redist.c%
   6  *
   7  *      $Id: seq.h,v 8.7 1993/12/02 10:30:24 bostic Exp $ (Berkeley) $Date: 1993/12/02 10:30:24 $
   8  */
   9
  10 /*
  11  * Map and abbreviation structures.
  12  *
  13  * The map structure is doubly linked list, sorted by input string and by
  14  * input length within the string.  (The latter is necessary so that short
  15  * matches will happen before long matches when the list is searched.)
  16  * Additionally, there is a bitmap which has bits set if there are entries
  17  * starting with the corresponding character.  This keeps us from walking
  18  * the list unless it's necessary.
  19  *
  20  * XXX
  21  * The fast-lookup bits are never turned off -- users don't usually unmap
  22  * things, though, so it's probably not a big deal.
  23  */
  24                                         /* Sequence type. */
  25 enum seqtype { SEQ_ABBREV, SEQ_COMMAND, SEQ_INPUT };
  26
  27 struct _seq {
  28         LIST_ENTRY(_seq) q;             /* Linked list of all sequences. */
  29         enum seqtype stype;             /* Sequence type. */
  30         char    *name;                  /* Sequence name (if any). */
  31         size_t   nlen;                  /* Name length. */
  32         char    *input;                 /* Sequence input keys. */
  33         size_t   ilen;                  /* Input keys length. */
  34         char    *output;                /* Sequence output keys. */
  35         size_t   olen;                  /* Output keys length. */
  36
  37 #define S_USERDEF       0x01            /* If sequence user defined. */
  38         u_char   flags;
  39 };
  40
  41 int      abbr_save __P((SCR *, FILE *));
  42 int      map_save __P((SCR *, FILE *));
  43 int      seq_delete __P((SCR *, char *, size_t, enum seqtype));
  44 int      seq_dump __P((SCR *, enum seqtype, int));
  45 SEQ     *seq_find __P((SCR *, SEQ **, char *, size_t, enum seqtype, int *));
  46 void     seq_init __P((SCR *));
  47 int      seq_save __P((SCR *, FILE *, char *, enum seqtype));
  48 int      seq_set __P((SCR *, char *, size_t,
  49             char *, size_t, char *, size_t, enum seqtype, int));