public void Run(CancellationToken cancellationToken)
{
lock (_busy)
{
if (Immutable) return;
if (_state != MicroTaskStates.None) _log.Error("_state != MicroTaskStates.None");
if (cancellationToken.IsCancellationRequested) return;
State = MicroTaskStates.Reading;
var text = _file.ReadText();
var replacer = new TextReplacer(text);
if (cancellationToken.IsCancellationRequested) return;
State = MicroTaskStates.Searching;
var matches = new List<RelatedMatch>();
var m = _regex.RelatedMatch(text, 0, replacer);
while (m.Success)
{
CurrentStagePercentage = (double)(m.StartIndex + m.Length) / text.Length;
matches.Add(m);
if (cancellationToken.IsCancellationRequested) return;
m = _regex.RelatedMatch(text, m.StartIndex + m.Length, replacer);
}
if (matches.Count == 0) matches.Add(m);
if (!matches[0].Success)
{
Immutable = true;
State = MicroTaskStates.Complete;
return;
}
if (cancellationToken.IsCancellationRequested) return;
State = MicroTaskStates.Replacing;
foreach (var relatedMatch in matches)
replacer.Replace(relatedMatch, _replacement.CreateCopyWithGroups(relatedMatch));
State = MicroTaskStates.BuildingResult;
var result = replacer.BuildResult();
ReplacesCount += matches.Count;
if (cancellationToken.IsCancellationRequested) return;
State = MicroTaskStates.SavingResult;
_file.WriteText(result);
State = MicroTaskStates.Complete;
}
}
public void Cancel()
{
lock (_busy)
{
_log.Debug("afterlock, State=" + State);
if (State == MicroTaskStates.Complete)
_file.RestoreBackup();
State = MicroTaskStates.None;
}
}