/// <summary>
/// Read and consume a token from the lexer, throw if the read token does not match the expected token
/// </summary>
/// <param name="type">The expected token type</param>
/// <param name="text">The expected token text</param>
private void ReadToken(WellKnownTextTokenType type, String text)
{
if (!(this.NextToken() && this.IsTokenMatch(type, text)))
{
throw new FormatException(Strings.WellKnownText_UnexpectedToken(type, text, this.lexer.CurrentToken));
}
}
private bool ReadOptionalToken(WellKnownTextTokenType expectedTokenType, string expectedTokenText)
{
LexerToken token;
while (this.lexer.Peek(out token))
{
if (token.MatchToken(8, null, StringComparison.OrdinalIgnoreCase))
{
this.lexer.Next();
}
else
{
if (token.MatchToken((int)expectedTokenType, expectedTokenText, StringComparison.OrdinalIgnoreCase))
{
this.lexer.Next();
return(true);
}
return(false);
}
}
return(false);
}
/// <summary>
/// Test whether the current token matches the expected token
/// </summary>
/// <param name="type">The expected token type</param>
/// <param name="text">The expected token text</param>
/// <returns>True if the two tokens match</returns>
private bool IsTokenMatch(WellKnownTextTokenType type, String text)
{
return(this.lexer.CurrentToken.MatchToken((int)type, text, StringComparison.OrdinalIgnoreCase));
}
