utf16.functions

# This file is part of shellfire unicode. It is subject to the licence terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/shellfire-dev/unicode/master/COPYRIGHT. No part of shellfire unicode, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.
# Copyright © 2014-2015 The developers of shellfire unicode. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/shellfire-dev/unicode/master/COPYRIGHT.


core_usesIn unicode

unicode_utf16_encodeCodePoint()
{
	local endianess="$1"
	local codePoint=$(($2+0))
	
	if [ $codePoint -lt 65536 ]; then
		_unicode_writeUnsignedShort${endianess} $codePoint
	elif [ $codePoint -le 1114111 ]; then
	    _unicode_writeUnsignedShort${endianess} $(((code_point >> 10) + 55232))
	    _unicode_writeUnsignedShort${endianess} $(((code_point & 1023) + 56320))
	else
		core_exitError $core_commandLine_exitCode_SOFTWARE "Invalid code point"
	fi
}

unicode_utf16_surrogatePairToCodePoint()
{
	local high=$(($1+0))
	local low=$(($2+0))
	
	printf '%s' $(((high - 55296) * 1024 + (low - 56320) + 65536))
}