private void State_Start()
{
AdvanceOverWhitespace();
if (IsAtEndOfInput)
{
_token = XamlTypeNameLexerToken.NONE;
}
else
{
switch (CurrentChar)
{
case '(':
_token = XamlTypeNameLexerToken.ROUND_BRACKET_OPEN;
break;
case ')':
_token = XamlTypeNameLexerToken.ROUND_BRACKET_CLOSE;
break;
case '[':
_token = XamlTypeNameLexerToken.SQUARE_BRACKET_OPEN;
break;
case ']':
_token = XamlTypeNameLexerToken.SQUARE_BRACKET_CLOSE;
break;
case ',':
_token = XamlTypeNameLexerToken.COMMA;
break;
case ':':
_token = XamlTypeNameLexerToken.COLON;
break;
default:
if (XamlParseUtils.IsValidNameStartChar(CurrentChar))
{
StartMultiCharToken();
_state = State.INNAME;
}
else
{
_token = XamlTypeNameLexerToken.ERROR;
}
break;
}
_lastChar = CurrentChar;
Advance();
}
}
private void State_InName()
{
if ((IsAtEndOfInput || XamlParseUtils.IsWhitespaceChar(CurrentChar)) || (CurrentChar == '['))
{
_token = XamlTypeNameLexerToken.NAME;
_state = State.START;
}
else
{
switch (CurrentChar)
{
case '(':
_pushedBackSymbol = XamlTypeNameLexerToken.ROUND_BRACKET_OPEN;
_token = XamlTypeNameLexerToken.NAME;
_state = State.START;
break;
case ')':
_pushedBackSymbol = XamlTypeNameLexerToken.ROUND_BRACKET_CLOSE;
_token = XamlTypeNameLexerToken.NAME;
_state = State.START;
break;
case ',':
_pushedBackSymbol = XamlTypeNameLexerToken.COMMA;
_token = XamlTypeNameLexerToken.NAME;
_state = State.START;
break;
case ':':
_pushedBackSymbol = XamlTypeNameLexerToken.COLON;
_token = XamlTypeNameLexerToken.NAME;
_state = State.START;
break;
default:
if (XamlParseUtils.IsValidQualifiedNameChar(CurrentChar))
{
AddToMultiCharToken();
}
else
{
_token = XamlTypeNameLexerToken.ERROR;
}
break;
}
_lastChar = CurrentChar;
Advance();
}
}
internal void Read()
{
if (_pushedBackSymbol != XamlTypeNameLexerToken.NONE)
{
_token = _pushedBackSymbol;
_pushedBackSymbol = XamlTypeNameLexerToken.NONE;
}
else
{
_token = XamlTypeNameLexerToken.NONE;
_tokenText = string.Empty;
_multiCharTokenStartIdx = -1;
_multiCharTokenLength = 0;
while (_token == XamlTypeNameLexerToken.NONE)
{
if (IsAtEndOfInput)
{
if (_state == State.INNAME)
{
_token = XamlTypeNameLexerToken.NAME;
_state = State.START;
}
break;
}
switch (_state)
{
case State.START:
State_Start();
break;
case State.INNAME:
State_InName();
break;
}
}
if (_multiCharTokenLength > 0)
{
_tokenText = CollectMultiCharToken();
}
}
}
public XamlTypeNameLexer(string text)
{
_inputText = text;
_state = State.START;
_pushedBackSymbol = XamlTypeNameLexerToken.NONE;
}
