private void ScanJSXWord()
{
var ch = _text[_pos];
while (IdentifierHelper.IsIdentifierChar(ch, false) || ch == '-')
{
ch = _text[++_pos];
}
this.FinishToken(TokenType.JSXName);
}
protected string ScanEscapedWord()
{
_containsEsc = false;
var astral = _ecmaVersion >= 6;
var chunkStart = _pos;
var first = true;
var word = new StringBuilder();
while (_pos < _text.Length)
{
var ch = _text[_pos];
if (IdentifierHelper.IsIdentifierChar(ch, astral))
{
_pos += ch <= 0xffff ? 1 : 2;
}
else if (ch == '\\')
{
_containsEsc = true;
word.Append(new string(_text, chunkStart, _pos));
var escStart = _pos;
if (_text[++_pos] != 'u')
{
this.Raise("Expecting Unicode escape sequence \\uXXXX");
}
var esc = this.ScanCodePoint();
var valid = first ?
IdentifierHelper.IsIdentifierStart((char)esc, astral) :
IdentifierHelper.IsIdentifierChar((char)esc, astral);
if (!valid)
{
this.Raise("Invalid Unicode escape");
}
word.Append(this.CodePointToString(esc));
chunkStart = _pos;
}
else
{
break;
}
}
return(word.Append(new string(_text, chunkStart, _pos - chunkStart)).ToString());
}
