private static bool NormalizeAndCheckString(
string charString,
int start,
int length,
Normalization form)
{
int i = start;
var norm = new NormalizerInput(
charString,
start,
length,
form);
var ch = 0;
int endIndex = start + length;
while ((ch = norm.ReadChar()) >= 0) {
int c = charString[i];
if ((c & 0x1ffc00) == 0xd800 && i + 1 < endIndex &&
charString[i + 1] >= 0xdc00 && charString[i + 1] <= 0xdfff) {
// Get the Unicode code point for the surrogate pair
c = 0x10000 + ((c - 0xd800) << 10) + (charString[i + 1] - 0xdc00);
++i;
} else if ((c & 0x1ff800) == 0xd800) {
// unpaired surrogate
return false;
}
++i;
if (c != ch) {
return false;
}
}
return i == endIndex;
}
private static bool NormalizeAndCheck(
int[] charArray,
int start,
int length,
Normalization form)
{
var i = 0;
int ch;
var input = new NormalizerInput(
new PartialArrayCharacterInput(charArray, start, length),
form);
while ((ch = input.ReadChar()) >= 0) {
if (i >= length) {
return false;
}
if (ch != charArray[start + i]) {
return false;
}
++i;
}
return i == length;
}