/// <summary>
/// Constructor
/// </summary>
/// <param name="Reference">Reference to a file or directory in the filesystem</param>
public FileSystemName(FileSystemReference Reference)
{
int Idx = Reference.FullName.LastIndexOf(Path.DirectorySeparatorChar);
if (Idx == Reference.FullName.Length - 1)
{
DisplayName = Reference.FullName;
CanonicalName = Reference.CanonicalName;
}
else
{
DisplayName = Reference.FullName.Substring(Idx + 1);
CanonicalName = Reference.CanonicalName.Substring(Idx + 1);
}
}
/// <summary>
/// Combine several fragments with a base directory, to form a new directory name
/// </summary>
/// <param name="BaseDirectory">The base directory</param>
/// <param name="Fragments">Fragments to combine with the base directory</param>
/// <returns>The new directory name</returns>
public static DirectoryReference Combine(DirectoryReference BaseDirectory, params string[] Fragments)
{
string FullName = FileSystemReference.CombineStrings(BaseDirectory, Fragments);
return(new DirectoryReference(FullName, FullName.ToLowerInvariant()));
}
/// <summary>
/// Combine several fragments with a base directory, to form a new filename
/// </summary>
/// <param name="BaseDirectory">The base directory</param>
/// <param name="Fragments">Fragments to combine with the base directory</param>
/// <returns>The new file name</returns>
public static FileReference Combine(DirectoryReference BaseDirectory, params string[] Fragments)
{
string FullName = FileSystemReference.CombineStrings(BaseDirectory, Fragments);
return(new FileReference(FullName, Sanitize.None));
}
/// <summary>
/// Evaluate whether the optional MSBuild condition on an XML element evaluates to true. Currently only supports 'ABC' == 'DEF' style expressions, but can be expanded as needed.
/// </summary>
/// <param name="Element">The XML element to check</param>
/// <param name="Properties">Dictionary mapping from property names to values.</param>
/// <returns></returns>
static bool EvaluateCondition(XmlElement Element, CsProjectInfo ProjectInfo)
{
// Read the condition attribute. If it's not present, assume it evaluates to true.
string Condition = Element.GetAttribute("Condition");
if (String.IsNullOrEmpty(Condition))
{
return(true);
}
// Expand all the properties
Condition = ExpandProperties(Condition, ProjectInfo.Properties);
// Parse literal true/false values
bool OutResult;
if (bool.TryParse(Condition, out OutResult))
{
return(OutResult);
}
// Tokenize the condition
string[] Tokens = Tokenize(Condition);
char[] TokenQuotes = new[] { '\'', '(', ')', '{', '}', '[', ']' };
// Try to evaluate it. We only support a very limited class of condition expressions at the moment, but it's enough to parse standard projects
bool bResult;
// Handle Exists('Platform\Windows\Gauntlet.TargetDeviceWindows.cs')
if (Tokens[0] == "Exists")
{
// remove all quotes, apostrophes etc that are either tokens or wrap tokens (The Tokenize() function is a bit suspect).
string[] Arguments = Tokens.Select(S => S.Trim(TokenQuotes)).Where(S => S.Length > 0).ToArray();
if (Tokens.Length > 1)
{
FileSystemReference Dependency = DirectoryReference.Combine(ProjectInfo.ProjectPath.Directory, Arguments[1]);
if (File.Exists(Dependency.FullName) || Directory.Exists(Dependency.FullName))
{
return(true);
}
return(false);
}
}
if (Tokens.Length == 3 && Tokens[0].StartsWith("'") && Tokens[1] == "==" && Tokens[2].StartsWith("'"))
{
bResult = String.Compare(Tokens[0], Tokens[2], StringComparison.InvariantCultureIgnoreCase) == 0;
}
else if (Tokens.Length == 3 && Tokens[0].StartsWith("'") && Tokens[1] == "!=" && Tokens[2].StartsWith("'"))
{
bResult = String.Compare(Tokens[0], Tokens[2], StringComparison.InvariantCultureIgnoreCase) != 0;
}
else
{
string Msg = string.Format("Couldn't parse condition {0} in project file {1}", Element.ToString(), ProjectInfo.ProjectPath);
throw new Exception(Msg);
}
return(bResult);
}
