public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
{
string name = value as string;
if (name != null)
{
if (name.IndexOfAny(new char[] { '*', '?' }) >= 0)
{
TokenizerExpandCollection <FileInfo> fsi = new TokenizerExpandCollection <FileInfo>();
List <string> items = new List <string>();
items.Add(name);
FileExpandArgs args = new FileExpandArgs();
args.FileExpandMode = FileExpandMode.DirectoryWildCards;
args.RemoveNonExistingFiles = true;
if (Tokenizer.TryExpandFileList(items, args))
{
foreach (string file in items)
{
fsi.Add(new FileInfo(file));
}
}
return(fsi);
}
else
{
return(new FileInfo(name));
}
}
return(base.ConvertFrom(context, culture, value));
}
/// <summary>
/// Tries the expand file list.
/// </summary>
/// <param name="fileList">The file list.</param>
/// <param name="args">The args.</param>
/// <returns></returns>
public static bool TryExpandFileList(IList <string> fileList, FileExpandArgs args)
{
if (fileList == null)
{
throw new ArgumentNullException("fileList");
}
else if (args == null)
{
throw new ArgumentNullException("args");
}
for (int i = 0; i < fileList.Count; i++)
{
string word = fileList[i];
int firstMask = word.IndexOfAny(new char[] { '*', '?' });
if (firstMask >= 0)
{
word = word.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
DirectoryInfo rootDir;
string rest = null;
int lastSlash = word.LastIndexOf(Path.DirectorySeparatorChar, firstMask);
if (lastSlash < 0)
{
rootDir = new DirectoryInfo(args.BaseDirectory);
rest = word;
}
else
{
string dir = word.Substring(0, lastSlash);
rootDir = new DirectoryInfo(QQnPath.Combine(args.BaseDirectory, dir));
rest = word.Substring(lastSlash + 1);
}
Regex fileRegex = ParseFileEx(rootDir, rest, args.FileExpandMode);
bool checkAttr = !args.MatchHiddenFiles || !args.MatchSystemFiles;
FileAttributes attrMask = (FileAttributes)0;
if (!args.MatchHiddenFiles)
{
attrMask |= FileAttributes.Hidden;
}
if (!args.MatchSystemFiles)
{
attrMask |= FileAttributes.System;
}
SearchOption si = (args.FileExpandMode == FileExpandMode.DirectoryWildCards) ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly;
bool foundOne = true;
SortedList <string, DirectoryInfo> visibleDirs = new SortedList <string, DirectoryInfo>(QQnPath.PathStringComparer);
if (args.MatchDirectories)
{
foreach (DirectoryInfo fsi in rootDir.GetDirectories("*", si))
{
if (fileRegex.Match(fsi.FullName).Success)
{
if (checkAttr && 0 != (fsi.Attributes & attrMask))
{
continue;
}
else if (checkAttr && !DirectoryVisible(fsi, attrMask, visibleDirs))
{
continue;
}
fileList.Insert(i++, fsi.FullName);
foundOne = true;
}
}
}
if (args.MatchFiles)
{
foreach (FileInfo fsi in rootDir.GetFiles("*", si))
{
if (fileRegex.Match(fsi.FullName).Success)
{
if (checkAttr && 0 != (fsi.Attributes & attrMask))
{
continue;
}
else if (checkAttr && !DirectoryVisible(fsi, attrMask, visibleDirs))
{
continue;
}
fileList.Insert(i++, fsi.FullName);
foundOne = true;
}
}
}
if (!foundOne && !args.RemoveNonExistingFiles)
{
return(false);
}
fileList.RemoveAt(i--);
}
else if (args.RemoveNonExistingFiles && !(args.MatchDirectories ? Directory.Exists(word) : File.Exists(word)))
{
return(false);
}
}
return(true);
}
