// comparison stops at null terminator, terminator parameter, or end-of-block -- whichever comes first.
internal bool Utf8NullTerminatedEquals(int offset, string text, MetadataStringDecoder utf8Decoder, char terminator, bool ignoreCase)
{
FastComparisonResult result = Utf8NullTerminatedFastCompare(offset, text, 0, out _, terminator, ignoreCase);
if (result == FastComparisonResult.Inconclusive)
{
string decoded = PeekUtf8NullTerminated(offset, null, utf8Decoder, out _, terminator);
return(decoded.Equals(text, ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal));
}
return(result == FastComparisonResult.Equal);
}
// comparison stops at null terminator, terminator parameter, or end-of-block -- whichever comes first.
internal bool Utf8NullTerminatedStartsWith(int offset, string text, MetadataStringDecoder utf8Decoder, char terminator, bool ignoreCase)
{
FastComparisonResult result = Utf8NullTerminatedFastCompare(offset, text, 0, out _, terminator, ignoreCase);
switch (result)
{
case FastComparisonResult.Equal:
case FastComparisonResult.BytesStartWithText:
return(true);
case FastComparisonResult.Unequal:
case FastComparisonResult.TextStartsWithBytes:
return(false);
default:
Debug.Assert(result == FastComparisonResult.Inconclusive);
string decoded = PeekUtf8NullTerminated(offset, null, utf8Decoder, out _, terminator);
return(decoded.StartsWith(text, ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal));
}
}
// comparison stops at null terminator, terminator parameter, or end-of-block -- whichever comes first.
internal bool Utf8NullTerminatedStartsWith(int offset, string text, MetadataStringDecoder utf8Decoder, char terminator = '\0')
{
FastComparisonResult result = Utf8NullTerminatedFastCompare(offset, text, terminator);
switch (result)
{
case FastComparisonResult.Equal:
case FastComparisonResult.IsPrefix:
return(true);
case FastComparisonResult.Unequal:
return(false);
default:
Debug.Assert(result == FastComparisonResult.Inconclusive);
int bytesRead;
string decoded = PeekUtf8NullTerminated(offset, null, utf8Decoder, out bytesRead, terminator);
return(decoded.StartsWith(text, StringComparison.Ordinal));
}
}
