public async Task Execute(TextReader input, TextWriter output, DateTime dateTimeUtc)
{
string?lineOrNull;
// we are inside #cronhosts block
var inside = false;
// wheter to uncomment or comment out lines inside #cronhosts block
var uncomment = false;
var lineNumber = 0;
while ((lineOrNull = await input.ReadLineAsync()) != null)
{
var line = lineOrNull !;
lineNumber++;
if (!inside)
{
var match = BeginRegex.Match(line);
if (match.Success)
{
var beginCron = new CronExpression(match.Groups[1].Value, dateTimeUtc);
var endCron = new CronExpression(match.Groups[2].Value, dateTimeUtc);
inside = true;
var prevEnd = endCron.PreviousOccurrence();
var prevBegin = beginCron.PreviousOccurrence();
if (endCron.GetNextOccurrence(prevEnd) <= dateTimeUtc)
{
endCron.NextOccurrence();
}
if (beginCron.GetNextOccurrence(prevBegin) <= dateTimeUtc)
{
beginCron.NextOccurrence();
}
uncomment = endCron.CurrentDate < beginCron.CurrentDate;
}
await output.WriteLineAsync(line);
}
else
{
if (EndRegex.Match(line).Success)
{
inside = false;
await output.WriteLineAsync(line);
}
else if (uncomment)
{
await output.WriteLineAsync(UncommentLine(line));
}
else
{
await output.WriteLineAsync(CommentOutLine(line));
}
}
}
}
protected override List <TplResult> InnerProcess(List <TplResult> input)
{
var results = new List <TplResult>();
var sb = new StringBuilder();
var grouping = false;
foreach (var i in input)
{
if (i.HasField(TargetField))
{
var currentValue = i.StringValueOf(TargetField);
//Start our group
if (!grouping && StartRegex.IsMatch(currentValue))
{
grouping = true;
}
//Add to our group
if (grouping)
{
sb.AppendLine(currentValue);
}
//End our group
if (grouping && EndRegex.IsMatch(currentValue))
{
i.AddOrUpdateField(TargetField, sb.ToString().TrimEnd());
results.Add(i);
grouping = false;
sb.Clear();
}
}
}
return(results);
}