akmenu-next/arm9/source/unicode.cpp
2024-10-13 02:11:12 -07:00

42 lines
1.5 KiB
C++

/*
unicode.cpp
Copyright (C) 2007 Acekard, www.acekard.com
Copyright (C) 2008 somebody
Copyright (C) 2009 yellow wood goblin
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 <http://www.gnu.org/licenses/>.
*/
#include "unicode.h"
std::string unicode_to_local_string(const u16* unicode_string, size_t length, bool* defCharUsed) {
if (defCharUsed) *defCharUsed = false;
std::string ret;
const u16* end = unicode_string + length;
while (*unicode_string && unicode_string < end) {
u16 data = *unicode_string++;
if (data < 0x80) {
ret.push_back(data);
} else if (data < 0x800) {
ret.push_back(0xc0 | ((data >> 6) & 0x1f));
ret.push_back(0x80 | (data & 0x3f));
} else {
ret.push_back(0xe0 | ((data >> 12) & 0x0f));
ret.push_back(0x80 | ((data >> 6) & 0x3f));
ret.push_back(0x80 | (data & 0x3f));
}
}
return ret;
}