usr/src/lib/libxcurses/h/collate.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 1996, by Sun Microsystems, Inc.
  24  * All rights reserved.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 /*
  30  * collate.h
  31  *
  32  *   MKS extension to ANSI/POSIX to retrieve additional locale information.
  33  *   Specifically collation information.
  34  *
  35  * Copyright 1989, 1993 by Mortice Kern Systems Inc.  All rights reserved.
  36  *
  37  * $Header: /rd/h/rcs/collate.h 1.16 1993/12/02 21:54:23 mark Exp $
  38  */
  39 #ifndef __COLLATE_H__
  40 #define __COLLATE_H__
  41
  42 #include <mks.h>
  43 #include <limits.h>
  44
  45 /*
  46  * include prototypes of the MKS i18n routines
  47  */
  48 #include <m_collat.h>
  49
  50 /*
  51  * constants and structure definitions used in MKS internal implementation
  52  *
  53  *  -- used by strxfrm(), localedef.
  54  */
  55
  56 /* string length limitations */
  57 #define _M_COLLATE_MAX  32      /* max length of a collation string */
  58 #define _M_COTOM_MAX    4       /* max length of one to many map */
  59
  60 /* forward, backward... -- or'ed into cmode */
  61 #define _M_FORWARD_MODE  1      /* compare based on string forward */
  62 #define _M_BACKWARD_MODE 2      /* compare based on string backward */
  63 #define _M_POSITION_MODE 4      /* consider relative position of non-IGNOREd */
  64
  65 /* flags used in cord.cflag */
  66 #define _M_NOCOLLSTR    0
  67 #define _M_MANYTOONEF   1       /* Potential many-to-one mapping in forward */
  68 #define _M_MANYTOONEB   2       /* Potential many-to-one mapping in backward */
  69
  70 /* typedef's */
  71 typedef short   _m_weight_t;
  72
  73 /* collate database file header */
  74 struct _m_cinfo {
  75         int             cnstr;                  /* number of collate strings */
  76         int             cnotom;                 /* number of one to many maps */
  77         int             cnweight;               /* Number of weights in cmode */
  78         unsigned char   cmode[COLL_WEIGHTS_MAX];/* order mode: forward... */
  79         struct _m_cstr  *cstr;                  /* Pointer to collating strs */
  80         struct _m_cord  *cord;                  /* weight tables */
  81         struct _m_cotom *cotom;                 /* one-to-many mapping tables */
  82         m_collel_t      *cindex,                /* index to range table map */
  83                         *range;                 /* Range table */
  84         m_collel_t      *equivo,                /* equiv class offsets */
  85                         *cequiv;                /* equiv class table */
  86 };
  87
  88 /* Per character and per collating-sequence structure */
  89 struct _m_cord {                                /* order */
  90         unsigned char   cflag;  /* =1, beginning of a collation string */
  91         _m_weight_t     cweight[COLL_WEIGHTS_MAX]; /* relative weight */
  92 };
  93
  94 /*l
  95  * The _m_cstr structure is per many-to-one mapping (collating element from...)
  96  * Pointed at by _m_cinfo.cstr, indexed by (m_collel_t - M_CSETSIZE).
  97  * Stored both forwards and backwards to make it easy for strxfrm parsing
  98  * for order_start backward.
  99  */
 100 struct _m_cstr {                                /* collating-element */
 101         char            csf[_M_COLLATE_MAX];    /* collating string forward */
 102         char            csb[_M_COLLATE_MAX];    /* collating string backward */
 103 };
 104
 105 /*l
 106  * Per one-to-many mapping entry.  A cweight entry in the _cord structure
 107  * which is negative, will index into this table.
 108  * Pointed at by _m_cinfo.cotom.
 109  */
 110 struct _m_cotom {                               /* one to many map */
 111         _m_weight_t     weight[_M_COTOM_MAX];
 112 };
 113
 114 #ifdef I18N
 115
 116 extern struct _m_cinfo  _m_cinfo;
 117
 118 #endif  /* I18N */
 119
 120 #endif  /* __COLLATE_H_ */