private static ReadOnlySpan <Char> PalindromeStrip(ReadOnlySpan <Char> span)
{
// First we need to build the string without any punctuation or whitespace or any other unrelated-to-reading characters
Char[] builder = new Char[span.Length];
Int32 b = 0;
Span <Char> glyphChars = new Char[2];
foreach (Glyph s in span.EnumerateGlyphs())
{
if (Glyph.IsLetterOrDigit(s))
{
switch (s.EncodeToUtf16(glyphChars))
{
case 1:
builder[b++] = glyphChars[0];
break;
case 2:
builder[b++] = glyphChars[0];
builder[b++] = glyphChars[1];
break;
}
}
}
return(builder.AsSpan().Slice(0, b));
}
private static ReadOnlySpan <Char> PalindromeStrip(ReadOnlySpan <Char> span)
{
// First we need to build the string without any punctuation or whitespace or any other unrelated-to-reading characters
Char[] builder = new Char[span.Length];
Int32 b = 0;
foreach (Char s in span)
{
if (!(Char.IsControl(s) || Char.IsPunctuation(s) || Char.IsSeparator(s) || Char.IsSymbol(s) || Char.IsWhiteSpace(s)))
{
builder[b++] = s;
}
}
return(builder.AsSpan().Slice(0, b));
}