public static PathPattern Create([NotNull] string pattern)
{
Guard.NotNull(pattern, nameof(pattern));
pattern = pattern.TrimEnd();
if (string.IsNullOrWhiteSpace(pattern))
{
return(new PathPattern(EmptySequence.Default, null));
}
if (StartsWithPathSeparator(pattern) || StartsWithDriveLetter(pattern))
{
throw ErrorFactory.System.SearchPatternMustNotBeDriveOrUnc(nameof(pattern));
}
PathPattern root = null;
foreach (string directoryPattern in pattern.Split(PathFacts.DirectorySeparatorChars).Reverse())
{
AssertDirectoryPatternIsValid(directoryPattern);
Sequence sequence = ParsePattern(directoryPattern);
if (root != null && SequenceContainsWildcards(sequence))
{
throw ErrorFactory.System.FileOrDirectoryOrVolumeIsIncorrect();
}
root = new PathPattern(sequence, root);
}
// ReSharper disable once AssignNullToNotNullAttribute
return(root);
}
public PathFilter([CanBeNull] string text, bool allowEmptyString)
{
if (allowEmptyString && text == string.Empty)
{
Text = string.Empty;
sequence = PathPattern.ParsePattern("*");
}
else
{
Text = string.IsNullOrEmpty(text) ? "*.*" : text;
sequence = PathPattern.ParsePattern(Text == "*.*" ? "*" : Text);
}
}
private PathPattern([NotNull] Sequence root, [CanBeNull] PathPattern subPattern)
{
this.root = root;
SubPattern = subPattern;
}