diff options
Diffstat (limited to 'src/mscorlib/corefx/System/IO/PathInternal.Unix.cs')
-rw-r--r-- | src/mscorlib/corefx/System/IO/PathInternal.Unix.cs | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/src/mscorlib/corefx/System/IO/PathInternal.Unix.cs b/src/mscorlib/corefx/System/IO/PathInternal.Unix.cs deleted file mode 100644 index 08dc1d0251..0000000000 --- a/src/mscorlib/corefx/System/IO/PathInternal.Unix.cs +++ /dev/null @@ -1,104 +0,0 @@ -// Licensed to the .NET Foundation under one or more agreements. -// The .NET Foundation licenses this file to you under the MIT license. -// See the LICENSE file in the project root for more information. - -using System.Diagnostics; -using System.Text; - -namespace System.IO -{ - /// <summary>Contains internal path helpers that are shared between many projects.</summary> - internal static partial class PathInternal - { - internal const char DirectorySeparatorChar = '/'; - internal const char AltDirectorySeparatorChar = '/'; - internal const char VolumeSeparatorChar = '/'; - internal const char PathSeparator = ':'; - - internal const string DirectorySeparatorCharAsString = "/"; - - // There is only one invalid path character in Unix - private const char InvalidPathChar = '\0'; - - internal const string ParentDirectoryPrefix = @"../"; - - /// <summary>Returns a value indicating if the given path contains invalid characters.</summary> - internal static bool HasIllegalCharacters(string path) - { - Debug.Assert(path != null); - return path.IndexOf(InvalidPathChar) >= 0; - } - - internal static int GetRootLength(string path) - { - return path.Length > 0 && IsDirectorySeparator(path[0]) ? 1 : 0; - } - - internal static bool IsDirectorySeparator(char c) - { - // The alternate directory separator char is the same as the directory separator, - // so we only need to check one. - Debug.Assert(DirectorySeparatorChar == AltDirectorySeparatorChar); - return c == DirectorySeparatorChar; - } - - /// <summary> - /// Normalize separators in the given path. Compresses forward slash runs. - /// </summary> - internal static string NormalizeDirectorySeparators(string path) - { - if (string.IsNullOrEmpty(path)) return path; - - // Make a pass to see if we need to normalize so we can potentially skip allocating - bool normalized = true; - - for (int i = 0; i < path.Length; i++) - { - if (IsDirectorySeparator(path[i]) - && (i + 1 < path.Length && IsDirectorySeparator(path[i + 1]))) - { - normalized = false; - break; - } - } - - if (normalized) return path; - - StringBuilder builder = new StringBuilder(path.Length); - - for (int i = 0; i < path.Length; i++) - { - char current = path[i]; - - // Skip if we have another separator following - if (IsDirectorySeparator(current) - && (i + 1 < path.Length && IsDirectorySeparator(path[i + 1]))) - continue; - - builder.Append(current); - } - - return builder.ToString(); - } - - /// <summary> - /// Returns true if the character is a directory or volume separator. - /// </summary> - /// <param name="ch">The character to test.</param> - internal static bool IsDirectoryOrVolumeSeparator(char ch) - { - // The directory separator, volume separator, and the alternate directory - // separator should be the same on Unix, so we only need to check one. - Debug.Assert(DirectorySeparatorChar == AltDirectorySeparatorChar); - Debug.Assert(DirectorySeparatorChar == VolumeSeparatorChar); - return ch == DirectorySeparatorChar; - } - - internal static bool IsPartiallyQualified(string path) - { - // This is much simpler than Windows where paths can be rooted, but not fully qualified (such as Drive Relative) - // As long as the path is rooted in Unix it doesn't use the current directory and therefore is fully qualified. - return !Path.IsPathRooted(path); - } - } -} |