/// <summary>
/// Parses the given date.
/// </summary>
/// <param name="date">The date in string format including "hash tags" (e.g. #01-01-1900#)</param>
/// <returns>The root of the parse tree.</returns>
public VBADateParser.DateLiteralContext Parse(string date)
{
var stream = new AntlrInputStream(date);
var lexer = new VBADateLexer(stream);
var tokens = new CommonTokenStream(lexer);
var parser = new VBADateParser(tokens);
parser.AddErrorListener(new ExceptionErrorListener());
VBADateParser.CompilationUnitContext tree = null;
try
{
parser.Interpreter.PredictionMode = PredictionMode.Sll;
tree = parser.compilationUnit();
}
catch (Exception ex)
{
Logger.Warn(ex, "SLL mode failed for {0}. Retrying using LL.", date);
tokens.Reset();
parser.Reset();
parser.Interpreter.PredictionMode = PredictionMode.Ll;
tree = parser.compilationUnit();
}
return(tree.dateLiteral());
}
/// <summary>
/// Visit a parse tree produced by <see cref="VBADateParser.compilationUnit"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitCompilationUnit([NotNull] VBADateParser.CompilationUnitContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="VBADateParser.compilationUnit"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitCompilationUnit([NotNull] VBADateParser.CompilationUnitContext context)
{
}
