Mercurial > gnulib
view lib/unictype/joiningtype_of.c @ 17249:e542fd46ad6f
maint: update all copyright year number ranges
Run "make update-copyright". Compare to commit 1602f0a from last year.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Tue, 01 Jan 2013 00:50:58 +0000 |
parents | 8250f2777afc |
children | 344018b6e5d7 |
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/* Arabic joining type of Unicode characters. Copyright (C) 2011-2013 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2011. This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include "unictype.h" /* Define u_joining_type table. */ #include "joiningtype_of.h" int uc_joining_type (ucs4_t uc) { unsigned int index1 = uc >> joining_type_header_0; if (index1 < joining_type_header_1) { int lookup1 = u_joining_type.level1[index1]; if (lookup1 >= 0) { unsigned int index2 = (uc >> joining_type_header_2) & joining_type_header_3; int lookup2 = u_joining_type.level2[lookup1 + index2]; if (lookup2 >= 0) { unsigned int index3 = (uc & joining_type_header_4) + lookup2; /* level3 contains 4-bit values. */ unsigned int lookup3 = (u_joining_type.level3[index3>>1] >> ((index3 % 2) * 4)) & 0x0f; if (lookup3 != 0x0f) return lookup3; } } } if (uc_is_general_category_withtable (uc, UC_CATEGORY_MASK_Mn | UC_CATEGORY_MASK_Me | UC_CATEGORY_MASK_Cf)) return UC_JOINING_TYPE_T; return UC_JOINING_TYPE_U; }