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- /* Copyright (C) 1990, 1993 Free Software Foundation, Inc.
-
- This file is part of GNU ISPELL.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- typedef unsigned short str_index;
- typedef unsigned short hash_index;
- typedef unsigned char comp_char;
-
- struct hash_table_entry
- {
- hash_index next;
- union
- {
- struct short_word
- {
- comp_char data[6];
- } s;
- struct long_word
- {
- unsigned char short_flag;
- unsigned char len;
- comp_char data[2];
- str_index sindex;
- } l;
- } u;
- };
-
-
- /* EMPTY or END close collision chains */
- #define HASH_EMPTY ((hash_index)0xffff)
- #define HASH_END ((hash_index)0xfffe)
- #define HASH_SPECIAL ((hash_index)0xfff0)
-
-
- struct hash_header
- {
- unsigned long magic;
- unsigned long version;
- unsigned long lexletters;
- unsigned long lexsize;
- unsigned long hashsize;
- unsigned long stblsize;
- unsigned char used[32]; /* 256 bits for which characters used */
- };
-
- /* 'HASH'compressed using an early table (!) */
- #define HMAGIC ('I' + ('S'<<8) + ((long)'P'<<16) + ((long)'L'<<24))
-
- #define VERSION 3
-
- #define V_FLAG 1
- #define N_FLAG 2
- #define X_FLAG 4
- #define H_FLAG 8
- #define Y_FLAG 0x0010
- #define G_FLAG 0x0020
- #define J_FLAG 0x0040
- #define D_FLAG 0x0080
- #define T_FLAG 0x0100
- #define R_FLAG 0x0200
- #define Z_FLAG 0x0400
- #define S_FLAG 0x0800
- #define P_FLAG 0x1000
- #define M_FLAG 0x2000
-
- #define flag_char(f) ("vnxhygjdtrzspm??"[f])
-
- extern hash_index hashsize;
-
-
-
-
-
-
- #define VOWEL 1
- #define SXZH 2
- #define Y 4
- #define LEXLETTER 8
-
- #define isvowel(c) ((ctbl+1)[(unsigned char)(c)] & VOWEL)
- #define issxzh(c) ((ctbl+1)[(unsigned char)(c)] & SXZH)
- #define issxzhy(c) ((ctbl+1)[(unsigned char)(c)] & (SXZH | Y))
- #define islexletter(c) ((ctbl+1)[(unsigned char)(c)] & LEXLETTER)
-
- extern unsigned char ctbl[];
-
- #ifdef __STDC__
-
- str_index copy_out_string (comp_char *, int);
- int hash_emptyp (hash_index);
- hash_index hash_find_end (hash_index);
- void hash_store (hash_index, struct hash_table_entry *);
- void hash_retrieve (hash_index, struct hash_table_entry *);
- void hash_set_next (hash_index, hash_index);
- hash_index hash_lookup (comp_char *, int);
- int hash_init (char *);
- unsigned short get_flags (hash_index);
- char *htetostr (struct hash_table_entry *, hash_index);
- unsigned int hash (char *);
-
- #else
-
- extern str_index copy_out_string ();
- extern int hash_emptyp ();
- extern hash_index hash_find_end ();
- extern void hash_store ();
- extern void hash_retrieve ();
- extern void hash_set_next ();
- extern hash_index hash_lookup ();
- extern int hash_init ();
- extern unsigned short get_flags ();
- extern char *htetostr ();
- extern unsigned int hash ();
-
- #endif
-