public void SetFilter(LogViewer.LogColumnType column, string pattern)
{
if (string.IsNullOrEmpty(pattern))
{
m_Filters[column] = s_MatchAllFilter;
return;
}
var isNegated = pattern.StartsWith(NegationPrefix) && pattern.Length > NegationPrefix.Length;
var regexPattern = pattern;
if (isNegated)
{
regexPattern = pattern.Substring(NegationPrefix.Length);
}
var access = MakeLineAccess(column);
var regex = new Regex(regexPattern, RegexOptions.Compiled | RegexOptions.IgnoreCase);
var filter = new ColumnFilter(pattern, l =>
{
var isMatch = regex.IsMatch(access(l) ?? string.Empty);
return(isNegated ? !isMatch : isMatch);
});
m_Filters[column] = filter;
}
static Func <LogListViewItem, string> MakeLineAccess(LogViewer.LogColumnType column)
{
switch (column)
{
case LogViewer.LogColumnType.LineNr:
return(l => l.LineNr.ToString());
case LogViewer.LogColumnType.Filename:
return(l => l.Filename);
case LogViewer.LogColumnType.ThreadId:
return(l => l.ThreadId);
case LogViewer.LogColumnType.Instance:
return(l => l.Instance);
case LogViewer.LogColumnType.Time:
return(l => l.Time);
case LogViewer.LogColumnType.Level:
return(l => l.Level);
case LogViewer.LogColumnType.Message:
return(l => l.Message);
default:
throw new ArgumentOutOfRangeException(nameof(column), column, null);
}
}
public bool TrySetFilter(LogViewer.LogColumnType column, string pattern)
{
try
{
SetFilter(column, pattern);
return(true);
}
catch (Exception)
{
return(false);
}
}
public Func <LogListViewItem, bool> GetMatcher(LogViewer.LogColumnType column) => m_Filters[column].Matches;
public string CurrentFilterString(LogViewer.LogColumnType column) => m_Filters[column].FilterString;
public void ResetColumnFilter(LogViewer.LogColumnType column) => m_Filters[column] = s_MatchAllFilter;