protected override IEnumerable <ParseResult> OnParse(ParseContext ctx)
{
if (Definition == null)
{
throw new Exception(String.Format("LateDefined \"{0}\" Not yet defined.", Name));
}
var match = ctx.Parse(Definition);
if (!match.Success)
{
return(Single(match.Error.Priority < 0 ? ctx.Expected(this) : match));
}
return(!_collapse?Single(match) : Enumerable.Empty <ParseResult>());
}
protected override IEnumerable <ParseResult> OnParse(ParseContext ctx)
{
var result = ctx.Parse(_parser);
if (result.Success)
{
if (result.Length == 0)
{
yield break;
}
yield return(result);
}
else
{
yield return(new ParseResult(result.Error, false));
}
}
protected override IEnumerable <ParseResult> OnParse(ParseContext ctx)
{
SymbolExpectedError tailError = null;
// ReSharper disable once ConvertClosureToMethodGroup
foreach (var result in Parsers.Select(x => ctx.Parse(x)))
{
if (result.Success || tailError == null)
{
if (tailError != null)
{
result.TailError = ctx.Expected(result.TailError, tailError);
}
yield return(result);
tailError = result.TailError;
}
else
{
var error = result.Error as SymbolExpectedError;
if (error != null)
{
yield return(ctx.Expected(tailError, error));
}
else
{
yield return(result);
}
}
if (!result.Success)
{
yield break;
}
}
}
protected override IEnumerable <ParseResult> OnParse(ParseContext ctx)
{
yield return(ctx.Parse(_inner));
}
