1 /* $NetBSD: unicode_template.c,v 1.4 2014/12/10 04:37:55 christos Exp $ */ 2 3 /* Id: unicode_template.c,v 1.1 2003/06/04 00:26:16 marka Exp */ 4 5 /* 6 * Copyright (c) 2000,2001 Japan Network Information Center. 7 * All rights reserved. 8 * 9 * By using this file, you agree to the terms and conditions set forth bellow. 10 * 11 * LICENSE TERMS AND CONDITIONS 12 * 13 * The following License Terms and Conditions apply, unless a different 14 * license is obtained from Japan Network Information Center ("JPNIC"), 15 * a Japanese association, Kokusai-Kougyou-Kanda Bldg 6F, 2-3-4 Uchi-Kanda, 16 * Chiyoda-ku, Tokyo 101-0047, Japan. 17 * 18 * 1. Use, Modification and Redistribution (including distribution of any 19 * modified or derived work) in source and/or binary forms is permitted 20 * under this License Terms and Conditions. 21 * 22 * 2. Redistribution of source code must retain the copyright notices as they 23 * appear in each source code file, this License Terms and Conditions. 24 * 25 * 3. Redistribution in binary form must reproduce the Copyright Notice, 26 * this License Terms and Conditions, in the documentation and/or other 27 * materials provided with the distribution. For the purposes of binary 28 * distribution the "Copyright Notice" refers to the following language: 29 * "Copyright (c) 2000-2002 Japan Network Information Center. All rights reserved." 30 * 31 * 4. The name of JPNIC may not be used to endorse or promote products 32 * derived from this Software without specific prior written approval of 33 * JPNIC. 34 * 35 * 5. Disclaimer/Limitation of Liability: THIS SOFTWARE IS PROVIDED BY JPNIC 36 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 37 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 38 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JPNIC BE LIABLE 39 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 40 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 41 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 42 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 43 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 44 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 45 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 46 */ 47 48 #ifndef UNICODE_TEMPLATE_INIT 49 #define UNICODE_TEMPLATE_INIT 50 51 /* 52 * Macro for multi-level index table. 53 */ 54 #define LOOKUPTBL(vprefix, mprefix, v) \ 55 DMAP(vprefix)[\ 56 IMAP(vprefix)[\ 57 IMAP(vprefix)[IDX0(mprefix, v)] + IDX1(mprefix, v)\ 58 ]\ 59 ].tbl[IDX2(mprefix, v)] 60 61 #define IDX0(mprefix, v) IDX_0(v, BITS1(mprefix), BITS2(mprefix)) 62 #define IDX1(mprefix, v) IDX_1(v, BITS1(mprefix), BITS2(mprefix)) 63 #define IDX2(mprefix, v) IDX_2(v, BITS1(mprefix), BITS2(mprefix)) 64 65 #define IDX_0(v, bits1, bits2) ((v) >> ((bits1) + (bits2))) 66 #define IDX_1(v, bits1, bits2) (((v) >> (bits2)) & ((1 << (bits1)) - 1)) 67 #define IDX_2(v, bits1, bits2) ((v) & ((1 << (bits2)) - 1)) 68 69 #define BITS1(mprefix) mprefix ## _BITS_1 70 #define BITS2(mprefix) mprefix ## _BITS_2 71 72 #define IMAP(vprefix) concat4(VERSION, _, vprefix, _imap) 73 #define DMAP(vprefix) concat4(VERSION, _, vprefix, _table) 74 #define SEQ(vprefix) concat4(VERSION, _, vprefix, _seq) 75 #define concat4(a,b,c,d) concat4X(a, b, c, d) 76 #define concat4X(a,b,c,d) a ## b ## c ## d 77 78 #endif /* UNICODE_TEMPLATE_INIT */ 79 80 static int 81 compose_sym(canonclass_, VERSION) (unsigned long c) { 82 /* Look up canonicalclass table. */ 83 return (LOOKUPTBL(canon_class, CANON_CLASS, c)); 84 } 85 86 static int 87 compose_sym(decompose_, VERSION) (unsigned long c, const unsigned long **seqp) 88 { 89 /* Look up decomposition table. */ 90 int seqidx = LOOKUPTBL(decompose, DECOMP, c); 91 *seqp = SEQ(decompose) + (seqidx & ~DECOMP_COMPAT); 92 return (seqidx); 93 } 94 95 static int 96 compose_sym(compose_, VERSION) (unsigned long c, 97 const struct composition **compp) 98 { 99 /* Look up composition table. */ 100 int seqidx = LOOKUPTBL(compose, CANON_COMPOSE, c); 101 *compp = SEQ(compose) + (seqidx & 0xffff); 102 return (seqidx >> 16); 103 } 104