public static bool IsWhiteSpaceOrNewLine(char32 c)
{
return(c == ' ' || // space
c == '\t' || // horizontal tab
c == '\r' || // \r
c == '\n'); // \n
}
public static void AppendUtf32(this StringBuilder builder, char32 utf32)
{
if (utf32 < 65536)
{
builder.Append((char)utf32);
return;
}
utf32 -= 65536;
builder.Append((char)(utf32 / 1024 + 55296));
builder.Append((char)(utf32 % 1024 + 56320));
}
public static bool IsDateTime(char32 c)
{
return(IsDigit(c) || c == ':' || c == '-' || c == 'Z' || c == 'T' || c == 'z' || c == 't' || c == '+' || c == '.');
}
public static bool IsDigit(char32 c)
{
return(c >= '0' && c <= '9');
}
public static bool IsValidUnicodeScalarValue(char32 c)
{
return(c >= 0 && c <= 0xD7FF || c >= 0xE000 && c < 0x10FFFF);
}
public static bool IsIdentifierContinue(char32 c)
{
return((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
}
public static bool IsKeyContinue(char32 c)
{
return((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c == '-' || c >= '0' && c <= '9');
}
private static bool IsBinary(char32 c)
{
return(c == '0' || c == '1');
}
private static bool IsOctal(char32 c)
{
return(c >= '0' && c <= '7');
}
private static bool IsHex(char32 c)
{
return((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'));
}
public static int BinaryToDecimal(char32 c)
{
Debug.Assert(IsBinary(c));
return(c - '0');
}
public static int OctalToDecimal(char32 c)
{
Debug.Assert(IsOctal(c));
return(c - '0');
}
public static int HexToDecimal(char32 c)
{
Debug.Assert(IsHex(c));
return((c >= '0' && c <= '9') ? c - '0' : (c >= 'a' && c <= 'f') ? (c - 'a') + 10 : (c - 'A') + 10);
}
public static bool IsNewLine(char32 c)
{
return(c == '\r' || // \r
c == '\n'); // \n
}
public static bool IsControlCharacter(char32 c)
{
return(c <= 0x1F || c == 0x7F);
}
public static bool IsWhiteSpace(char32 c)
{
return(c == ' ' || // space
c == '\t'); // horizontal tab
}