From bbe35a6e1b54ef5cd7c1c471886c30ba85c0804e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 19:47:50 +0200 Subject: Adding upstream version 1.21. Signed-off-by: Daniel Baumann --- lib/unicase/simple-mapping.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 lib/unicase/simple-mapping.h (limited to 'lib/unicase/simple-mapping.h') diff --git a/lib/unicase/simple-mapping.h b/lib/unicase/simple-mapping.h new file mode 100644 index 0000000..626a24c --- /dev/null +++ b/lib/unicase/simple-mapping.h @@ -0,0 +1,39 @@ +/* Simple case mapping for Unicode characters. + Copyright (C) 2002, 2006, 2009-2020 Free Software Foundation, Inc. + Written by Bruno Haible , 2009. + + 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 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 + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +ucs4_t +FUNC (ucs4_t uc) +{ + unsigned int index1 = uc >> mapping_header_0; + if (index1 < mapping_header_1) + { + int lookup1 = u_mapping.level1[index1]; + if (lookup1 >= 0) + { + unsigned int index2 = (uc >> mapping_header_2) & mapping_header_3; + int lookup2 = u_mapping.level2[lookup1 + index2]; + if (lookup2 >= 0) + { + unsigned int index3 = (uc & mapping_header_4); + int lookup3 = u_mapping.level3[lookup2 + index3]; + + return uc + lookup3; + } + } + } + return uc; +} -- cgit v1.2.3