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WindowsPathUtils.cs
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57 lines (52 loc) · 1.59 KB
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namespace ICSharpCode.SharpZipLib.Core
{
/// <summary>
/// WindowsPathUtils provides simple utilities for handling windows paths.
/// </summary>
public abstract class WindowsPathUtils
{
/// <summary>
/// Initializes a new instance of the <see cref="WindowsPathUtils"/> class.
/// </summary>
internal WindowsPathUtils()
{
}
/// <summary>
/// Remove any path root present in the path
/// </summary>
/// <param name="path">A <see cref="string"/> containing path information.</param>
/// <returns>The path with the root removed if it was present; path otherwise.</returns>
/// <remarks>Unlike the <see cref="System.IO.Path"/> class the path isnt otherwise checked for validity.</remarks>
public static string DropPathRoot(string path)
{
string result = path;
if (!string.IsNullOrEmpty(path)) {
if ((path[0] == '\\') || (path[0] == '/')) {
// UNC name ?
if ((path.Length > 1) && ((path[1] == '\\') || (path[1] == '/'))) {
int index = 2;
int elements = 2;
// Scan for two separate elements \\machine\share\restofpath
while ((index <= path.Length) &&
(((path[index] != '\\') && (path[index] != '/')) || (--elements > 0))) {
index++;
}
index++;
if (index < path.Length) {
result = path.Substring(index);
} else {
result = "";
}
}
} else if ((path.Length > 1) && (path[1] == ':')) {
int dropCount = 2;
if ((path.Length > 2) && ((path[2] == '\\') || (path[2] == '/'))) {
dropCount = 3;
}
result = result.Remove(0, dropCount);
}
}
return result;
}
}
}