// There's no API to get the number of bytes trimmed. Instead, call TrimStart / TrimEnd
// and compare the length of the returned string against the length of the input string,
// and this will give the number of bytes trimmed from the start + end.
//
// (Assume there are TrimStart / TrimEnd equivalents of Trim.)
/*
* SPLIT ROUTINES
*/
// Returns a ref struct that duck types an enumerator
public static Utf8SpanSplitEnumerator Split(
ReadOnlySpan <byte> inUtf8,
UnicodeScalar splitScalar) => throw null;
// Trims the requested scalar value from the beginning and end of the input.
// Returns a slice of the original input.
public static ReadOnlySpan <byte> Trim(
ReadOnlySpan <byte> inUtf8,
UnicodeScalar trimScalar) => throw null;
public static int IndexOf(this ReadOnlyMemory <Char8> utf8Text, UnicodeScalar value, StringComparison stringComparison) => throw null;
public static ReadOnlyMemory <Char8> Trim(this ReadOnlyMemory <Char8> utf8Text, UnicodeScalar trimScalar) => throw null;
public static int IndexOf(this ReadOnlyMemory <Char8> utf8Text, UnicodeScalar value) => throw null;
public static void Contains(this ReadOnlyMemory <Char8> utf8Text, UnicodeScalar value, StringComparison comparisonType) => throw null;
public static void Contains(this ReadOnlyMemory <Char8> utf8Text, UnicodeScalar value) => throw null;
public static SequenceValidity PeekLastScalarUtf16(ReadOnlySpan <char> utf8Data, out UnicodeScalar scalar, int sequenceLength) => throw null;
public static SequenceValidity PeekFirstScalarUtf8(ReadOnlySpan <Char8> utf8Data, out UnicodeScalar scalar, int sequenceLength) => throw null;
