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Diffstat (limited to 'contrib/idn/idnkit-1.0-src/lib/unicode_template.c')
| -rw-r--r-- | contrib/idn/idnkit-1.0-src/lib/unicode_template.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/contrib/idn/idnkit-1.0-src/lib/unicode_template.c b/contrib/idn/idnkit-1.0-src/lib/unicode_template.c new file mode 100644 index 0000000..12ce571 --- /dev/null +++ b/contrib/idn/idnkit-1.0-src/lib/unicode_template.c @@ -0,0 +1,101 @@ +/* $Id: unicode_template.c,v 1.1.1.1 2003/06/04 00:26:16 marka Exp $ */ + +/* + * Copyright (c) 2000,2001 Japan Network Information Center. + * All rights reserved. + * + * By using this file, you agree to the terms and conditions set forth bellow. + * + * LICENSE TERMS AND CONDITIONS + * + * The following License Terms and Conditions apply, unless a different + * license is obtained from Japan Network Information Center ("JPNIC"), + * a Japanese association, Kokusai-Kougyou-Kanda Bldg 6F, 2-3-4 Uchi-Kanda, + * Chiyoda-ku, Tokyo 101-0047, Japan. + * + * 1. Use, Modification and Redistribution (including distribution of any + * modified or derived work) in source and/or binary forms is permitted + * under this License Terms and Conditions. + * + * 2. Redistribution of source code must retain the copyright notices as they + * appear in each source code file, this License Terms and Conditions. + * + * 3. Redistribution in binary form must reproduce the Copyright Notice, + * this License Terms and Conditions, in the documentation and/or other + * materials provided with the distribution. For the purposes of binary + * distribution the "Copyright Notice" refers to the following language: + * "Copyright (c) 2000-2002 Japan Network Information Center. All rights reserved." + * + * 4. The name of JPNIC may not be used to endorse or promote products + * derived from this Software without specific prior written approval of + * JPNIC. + * + * 5. Disclaimer/Limitation of Liability: THIS SOFTWARE IS PROVIDED BY JPNIC + * "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 JPNIC 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 DAMAGES. + */ + +#ifndef UNICODE_TEMPLATE_INIT +#define UNICODE_TEMPLATE_INIT + +/* + * Macro for multi-level index table. + */ +#define LOOKUPTBL(vprefix, mprefix, v) \ + DMAP(vprefix)[\ + IMAP(vprefix)[\ + IMAP(vprefix)[IDX0(mprefix, v)] + IDX1(mprefix, v)\ + ]\ + ].tbl[IDX2(mprefix, v)] + +#define IDX0(mprefix, v) IDX_0(v, BITS1(mprefix), BITS2(mprefix)) +#define IDX1(mprefix, v) IDX_1(v, BITS1(mprefix), BITS2(mprefix)) +#define IDX2(mprefix, v) IDX_2(v, BITS1(mprefix), BITS2(mprefix)) + +#define IDX_0(v, bits1, bits2) ((v) >> ((bits1) + (bits2))) +#define IDX_1(v, bits1, bits2) (((v) >> (bits2)) & ((1 << (bits1)) - 1)) +#define IDX_2(v, bits1, bits2) ((v) & ((1 << (bits2)) - 1)) + +#define BITS1(mprefix) mprefix ## _BITS_1 +#define BITS2(mprefix) mprefix ## _BITS_2 + +#define IMAP(vprefix) concat4(VERSION, _, vprefix, _imap) +#define DMAP(vprefix) concat4(VERSION, _, vprefix, _table) +#define SEQ(vprefix) concat4(VERSION, _, vprefix, _seq) +#define concat4(a,b,c,d) concat4X(a, b, c, d) +#define concat4X(a,b,c,d) a ## b ## c ## d + +#endif /* UNICODE_TEMPLATE_INIT */ + +static int +compose_sym(canonclass_, VERSION) (unsigned long c) { + /* Look up canonicalclass table. */ + return (LOOKUPTBL(canon_class, CANON_CLASS, c)); +} + +static int +compose_sym(decompose_, VERSION) (unsigned long c, const unsigned long **seqp) +{ + /* Look up decomposition table. */ + int seqidx = LOOKUPTBL(decompose, DECOMP, c); + *seqp = SEQ(decompose) + (seqidx & ~DECOMP_COMPAT); + return (seqidx); +} + +static int +compose_sym(compose_, VERSION) (unsigned long c, + const struct composition **compp) +{ + /* Look up composition table. */ + int seqidx = LOOKUPTBL(compose, CANON_COMPOSE, c); + *compp = SEQ(compose) + (seqidx & 0xffff); + return (seqidx >> 16); +} |