From 5f2b09982312c98863eb9a8dfe2c608b81f58259 Mon Sep 17 00:00:00 2001 From: "Manuel A. Fernandez Montecelo" Date: Thu, 26 May 2016 16:48:15 +0100 Subject: Imported Upstream version 0.9.6 --- lib/unigbrk/uc-gbrk-prop.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 lib/unigbrk/uc-gbrk-prop.c (limited to 'lib/unigbrk/uc-gbrk-prop.c') diff --git a/lib/unigbrk/uc-gbrk-prop.c b/lib/unigbrk/uc-gbrk-prop.c new file mode 100644 index 00000000..2c984909 --- /dev/null +++ b/lib/unigbrk/uc-gbrk-prop.c @@ -0,0 +1,45 @@ +/* Grapheme cluster break property function. + Copyright (C) 2010-2015 Free Software Foundation, Inc. + Written by Ben Pfaff , 2010. + + 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 "unigbrk.h" + +#include "gbrkprop.h" + +int +uc_graphemeclusterbreak_property (ucs4_t uc) +{ + unsigned int index1 = uc >> gbrkprop_header_0; + if (index1 < gbrkprop_header_1) + { + int lookup1 = unigbrkprop.level1[index1]; + if (lookup1 >= 0) + { + unsigned int index2 = (uc >> gbrkprop_header_2) & gbrkprop_header_3; + int lookup2 = unigbrkprop.level2[lookup1 + index2]; + if (lookup2 >= 0) + { + unsigned int index3 = uc & gbrkprop_header_4; + unsigned char lookup3 = unigbrkprop.level3[lookup2 + index3 / 2]; + return (lookup3 >> ((uc & 1) << 2)) & 0x0f; + } + } + } + return GBP_OTHER; +} -- cgit v1.2.3