/// <summary>Yield all subdirectories of the supplied path as a text outline.</summary>
/// <param name="rootPath">Topmost directory.</param>
/// <param name="fileFilter">Search pattern or *null* for all.</param>
/// <param name="drawWith">Outline characters.</param>
/// <param name="order">Output sorting.</param>
/// <param name="tab">Number of characters to indent per level.</param>
/// <returns>All subdirectories of the supplied path as a text outline.</returns>
public static IEnumerable <string> GenerateTextTree(string rootPath, string fileFilter, DrawWith drawWith = DrawWith.Graphic, Ordering order = Ordering.None, int tab = 4)
{
var sb = new StringBuilder();
for (var dv = new DirNode.Vector(rootPath, null, order, drawWith, tab); dv.Advance(); sb.Length = 0)
{
sb.AppendIndent(dv, false);
sb.Append(dv.Depth == 0 ? dv.Top.Path : dv.Top.Name);
yield return(sb.ToString());
if (fileFilter != null)
{
dv.PregetContents(fileFilter);
if (dv.Top.FileInfos.Count > 0)
{
sb.Length = 0;
sb.AppendIndent(dv, true);
int indentLength = sb.Length;
foreach (var fInfo in dv.Top.FileInfos)
{
sb.Append(fInfo.Name);
yield return(sb.ToString());
sb.Length = indentLength;
}
yield return(sb.ToString());
}
}
}
}
/// <summary>Yield all subdirectories of the supplied path.</summary>
/// <param name="rootPath">Topmost directory.</param>
/// <param name="filter">Search pattern or *null* for all.</param>
/// <param name="order">Output sorting.</param>
/// <returns>All subdirectories of the supplied path as <see cref="DirectoryInfo"/> instances.</returns>
public static IEnumerable <DirectoryInfo> EnumerateDirectoriesForInfo(string rootPath, string filter = null, Ordering order = Ordering.None)
{
for (var dv = new DirNode.Vector(rootPath, filter, order); dv.Advance();)
{
yield return(dv.Top.dirInfos[dv.Top.Index]);
}
}
/// <summary>Yield all subdirectories of the supplied path.</summary>
/// <param name="rootPath">Topmost directory.</param>
/// <param name="filter">Search pattern or *null* for all.</param>
/// <param name="order">Output sorting.</param>
/// <returns>All subdirectories of the supplied path as text.</returns>
public static IEnumerable <string> EnumerateDirectories(string rootPath, string filter = null, Ordering order = Ordering.None)
{
for (var dv = new DirNode.Vector(rootPath, filter, order); dv.Advance();)
{
yield return(dv.Top.Path);
}
}
/// <summary>Appends an appropriate number of spaces to this instance.</summary>
/// <param name="sb">Instance to append to.</param>
/// <param name="dv">Path to a directory node.</param>
/// <param name="forFiles">*true* if files are output, else *false*.</param>
/// <returns>The <see cref="StringBuilder"/> instance.</returns>
public static StringBuilder AppendIndent(this StringBuilder sb, DirNode.Vector dv, bool forFiles)
{
var topIx = dv.Count - 1;
if (!forFiles && dv[topIx].Index < 0)
{
--topIx;
}
for (var ix = 1; ix <= topIx; ++ix)
{
if (!forFiles && ix == topIx)
{
sb.Append(dv[ix].IsLast ? dv.UpRight : dv.UpDownRight);
for (var jx = 1; jx < dv.TabSize; ++jx)
{
sb.Append(dv.LeftRight);
}
}
else
{
sb.Append(dv[ix].IsLast ? ' ' : dv.UpDown);
for (var jx = 1; jx < dv.TabSize; ++jx)
{
sb.Append(' ');
}
}
}
return(sb);
}
/// <summary>Yield all subdirectories of the supplied path.</summary>
/// <param name="rootPath">Topmost directory.</param>
/// <param name="fileFilter">Search pattern or *null* for all.</param>
/// <param name="order">Output sorting.</param>
/// <returns>All subdirectories of the supplied path as text.</returns>
public static IEnumerable <string> EnumerateFiles(string rootPath, string fileFilter = null, Ordering order = Ordering.None)
{
if (fileFilter == null)
{
fileFilter = "*";
}
for (var dv = new DirNode.Vector(rootPath, null, order); dv.Advance();)
{
dv.PregetContents(fileFilter);
foreach (var fInfo in dv.Top.FileInfos)
{
yield return(fInfo.FullName);
}
}
}
