private static IToken Resolve(LexerContext context)
{
if (CommentToken.IsCommentBegin(context))
{
return(ResolveComment(context));
}
else if (NumberToken.IsNumberBegin(context))
{
return(ResolveNumber(context));
}
else if (StringToken.IsStringBegin(context))
{
return(ResolveString(context));
}
else if (SpecialSymbolToken.IsSpecial(context))
{
return(ResolveSpecial(context));
}
else if (IdentifierToken.IsIdentifierBegin(context))
{
return(ResolveIdentifier(context));
}
else
{
throw new SyntaxErrorException();
}
}
private static StringToken ResolveString(LexerContext context)
{
var begin = context.GetIndex();
var builder = new StringBuilder();
while (StringToken.IsStringBegin(context))
{
if (context.GetCurrentChar().Equals('\''))
{
ResolveQuotedString(context, builder);
}
else
{
ResolveControlString(context, builder);
}
}
return(new StringToken(builder.ToString(), begin, context.GetIndex()));
}