private async Task SearchLinesAsync(IList <string> lines, IProgress <ProgressStatus> progress, CancellationToken token)
{
try
{
//Reset progress
progress.Report(new ProgressStatus(0, "Matches: 0"));
int matchCount = 0;
Match currentMatch;
IEnumerable <string> groups;
Regex regex = new Regex(RegexPattern, GetRegexOptions());
if (ReadLineByLine)
{
for (int i = 0; i < lines.Count(); i++)
{
//Cancellation
token.ThrowIfCancellationRequested();
currentMatch = regex.Match(lines[i]);
if (currentMatch.Success)
{
//Fake delay
await Task.Delay(TimeSpan.FromSeconds(0.5));
//Add matches/groups and line to collection
groups = currentMatch.Groups.OfType <Group>().Select(g => g.Value);
RegexResultCollection.Add(new RegexResult(++matchCount, lines[i], groups));
}
progress.Report(new ProgressStatus(i + 1, "Matches: " + matchCount));
}
}
else
{
MatchCollection matches = regex.Matches(InputText);
for (int i = 0; i < matches.Count; i++)
{
//Add matches/groups to collection
groups = matches[i].Groups.OfType <Group>().Select(g => g.Value);
RegexResultCollection.Add(new RegexResult(++matchCount, string.Empty, groups));
}
progress.Report(new ProgressStatus(lines.Count, "Matches: " + matchCount));
}
}
catch (Exception)
{
//Ignore cancellation
}
finally
{
cancelButton.IsEnabled = false;
SetStartButtonStatus();
}
}
private async void StartButton_Click(object sender, RoutedEventArgs e)
{
cancelButton.IsEnabled = true;
startButton.IsEnabled = false;
cancellationTokenSource = new CancellationTokenSource();
RegexResultCollection.Clear();
List <string> lines = InputText.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries).ToList();
//Set up ProgressBarStatus
searchProgressBar.Maximum = lines.Count;
IProgress <ProgressStatus> progress = new Progress <ProgressStatus>(status =>
{
searchProgressBar.Value = status.Value;
progressTextBlock.Text = status.Text;
});
OnlyShowUsedColumns(new Regex(RegexPattern).GetGroupNumbers()?.Length ?? 0);
await SearchLinesAsync(lines, progress, cancellationTokenSource.Token);
}
