From fa095a4504cbe668e4244547e2c141597bea4ecf Mon Sep 17 00:00:00 2001 From: Andreas Rottmann Date: Mon, 14 Sep 2009 12:32:44 +0200 Subject: Imported Upstream version 0.9.1 --- lib/unictype/digit.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 lib/unictype/digit.c (limited to 'lib/unictype/digit.c') diff --git a/lib/unictype/digit.c b/lib/unictype/digit.c new file mode 100644 index 00000000..21545c7b --- /dev/null +++ b/lib/unictype/digit.c @@ -0,0 +1,49 @@ +/* Values of digit Unicode characters. + Copyright (C) 2002, 2006 Free Software Foundation, Inc. + Written by Bruno Haible , 2002. + + 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 . */ + +#include + +/* Specification. */ +#include "unictype.h" + +/* Define u_digit table. */ +#include "digit.h" + +int +uc_digit_value (ucs4_t uc) +{ + unsigned int index1 = uc >> digit_header_0; + if (index1 < digit_header_1) + { + int lookup1 = u_digit.level1[index1]; + if (lookup1 >= 0) + { + unsigned int index2 = (uc >> digit_header_2) & digit_header_3; + int lookup2 = u_digit.level2[lookup1 + index2]; + if (lookup2 >= 0) + { + unsigned int index3 = (uc & digit_header_4) + lookup2; + /* level3 contains 4-bit values. */ + unsigned int lookup3 = + (u_digit.level3[index3>>1] >> ((index3 % 2) * 4)) & 0x0f; + + return (int) lookup3 - 1; + } + } + } + return -1; +} -- cgit v1.2.3