/// <summary>
/// Executa o parser na consulta.
/// </summary>
/// <param name="query"></param>
/// <returns></returns>
public ParseMessage Parse(string query)
{
using (var parser = new CQLParser("Colosoft.Caching.Resources.cql.cgt", _logger))
{
using (var source = new System.IO.StringReader(query))
{
ParseMessage message = parser.Parse(source, true);
_currentReduction = parser.CurrentReduction;
return(message);
}
}
}
private static void AddErrorListener(this CQLParser parser, IErrorListener errorListener)
{
if (errorListener != null)
{
parser.AddErrorListener(errorListener);
}
else
{
errorListener = new ErrorListener();
errorListener.ErrorDetected += (sender, ex) => { throw ex; };
parser.AddErrorListener(errorListener);
}
}
/// <summary>
/// Parses a user query (without validating it). You practically only get the syntax tree.
/// </summary>
/// <param name="text"></param>
/// <param name="errorListener"></param>
/// <returns></returns>
public static Query ParseForSyntaxOnly(string text, IErrorListener errorListener = null)
{
var inputStream = new AntlrInputStream(text);
var speakLexer = new CQLLexer(inputStream);
var commonTokenStream = new CommonTokenStream(speakLexer);
var parser = new CQLParser(commonTokenStream);
AddErrorListener(parser, errorListener);
var parseContext = parser.query();
var visitor = new QueryVisitor();
return(visitor.Visit(parseContext));
}
