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/unistr/u16-uctomb-aux.c | 58 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 lib/unistr/u16-uctomb-aux.c (limited to 'lib/unistr/u16-uctomb-aux.c') diff --git a/lib/unistr/u16-uctomb-aux.c b/lib/unistr/u16-uctomb-aux.c new file mode 100644 index 0000000..384452b --- /dev/null +++ b/lib/unistr/u16-uctomb-aux.c @@ -0,0 +1,58 @@ +/* Conversion UCS-4 to UTF-16. + Copyright (C) 2002, 2006-2007 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 "unistr.h" + +int +u16_uctomb_aux (uint16_t *s, ucs4_t uc, int n) +{ + if (uc < 0xd800) + { + /* The case n >= 1 is already handled by the caller. */ + } + else if (uc < 0x10000) + { + if (uc >= 0xe000) + { + if (n >= 1) + { + s[0] = uc; + return 1; + } + } + else + return -1; + } + else + { + if (uc < 0x110000) + { + if (n >= 2) + { + s[0] = 0xd800 + ((uc - 0x10000) >> 10); + s[1] = 0xdc00 + ((uc - 0x10000) & 0x3ff); + return 2; + } + } + else + return -1; + } + return -2; +} -- cgit v1.2.3