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Commit Description:
Various UI improvements.
Commit Description:
Various UI improvements.
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FNA/src/Utilities/FileHelpers.cs
67 lines | 2.8 KiB | text/x-csharp | CSharpLexer
67 lines | 2.8 KiB | text/x-csharp | CSharpLexer
| r0 | // MonoGame - Copyright (C) The MonoGame Team | |||
| // This file is subject to the terms and conditions defined in | ||||
| // file 'LICENSE.txt', which is part of this source code package. | ||||
| using System; | ||||
| using System.IO; | ||||
| namespace MonoGame.Utilities | ||||
| { | ||||
| internal static class FileHelpers | ||||
| { | ||||
| public static readonly char ForwardSlash = '/'; | ||||
| public static readonly string ForwardSlashString = new string(ForwardSlash, 1); | ||||
| public static readonly char BackwardSlash = '\\'; | ||||
| #if WINRT | ||||
| public static readonly char NotSeparator = ForwardSlash; | ||||
| public static readonly char Separator = BackwardSlash; | ||||
| #else | ||||
| public static readonly char NotSeparator = Path.DirectorySeparatorChar == BackwardSlash ? ForwardSlash : BackwardSlash; | ||||
| public static readonly char Separator = Path.DirectorySeparatorChar; | ||||
| #endif | ||||
| public static string NormalizeFilePathSeparators(string name) | ||||
| { | ||||
| return name.Replace(NotSeparator, Separator); | ||||
| } | ||||
| /// <summary> | ||||
| /// Combines the filePath and relativeFile based on relativeFile being a file in the same location as filePath. | ||||
| /// Relative directory operators (..) are also resolved | ||||
| /// </summary> | ||||
| /// <example>"A\B\C.txt","D.txt" becomes "A\B\D.txt"</example> | ||||
| /// <example>"A\B\C.txt","..\D.txt" becomes "A\D.txt"</example> | ||||
| /// <param name="filePath">Path to the file we are starting from</param> | ||||
| /// <param name="relativeFile">Relative location of another file to resolve the path to</param> | ||||
| public static string ResolveRelativePath(string filePath, string relativeFile) | ||||
| { | ||||
| // Uri accepts forward slashes | ||||
| filePath = filePath.Replace(BackwardSlash, ForwardSlash); | ||||
| // Sanitize the path of double slashes, they confuse Uri | ||||
| while (filePath.Contains("//")) | ||||
| filePath = filePath.Replace("//", "/"); | ||||
| bool hasForwardSlash = filePath.StartsWith(ForwardSlashString); | ||||
| if (!hasForwardSlash) | ||||
| filePath = ForwardSlashString + filePath; | ||||
| // Get a uri for filePath using the file:// schema and no host. | ||||
| var src = new Uri("file://" + filePath); | ||||
| var dst = new Uri(src, relativeFile); | ||||
| // The uri now contains the path to the relativeFile with | ||||
| // relative addresses resolved... get the local path. | ||||
| var localPath = dst.LocalPath; | ||||
| if (!hasForwardSlash && localPath.StartsWith("/")) | ||||
| localPath = localPath.Substring(1); | ||||
| // Convert the directory separator characters to the | ||||
| // correct platform specific separator. | ||||
| return NormalizeFilePathSeparators(localPath); | ||||
| } | ||||
| } | ||||
| } | ||||
