private static Version GetLayoutVersion(XDocument doc)
{
XAttribute versionAttr = doc.Root.Attribute(Parameters.Version);
if (versionAttr == null)
{
return(Cascara.AssemblyVersion);
}
if (!Version.TryParse(versionAttr.Value, out Version ver))
{
string msg = Resources.LayoutExceptionMalformattedLayoutVersion;
throw LayoutScriptException.Create <LayoutScriptException>(null, new XmlSourceEntity(versionAttr), msg, versionAttr.Value);
}
return(ver);
}
public static new XmlLayoutScript Parse(string source)
{
// Parse XML document string
XDocument doc;
try
{
doc = XDocument.Parse(source, LoadOptions.SetLineInfo);
}
catch (XmlException e)
{
string msg = e.Message;
throw LayoutScriptException.Create <LayoutScriptException>(null, e, null, msg);
}
// Create and return layout
return(CreateXmlBinaryLayout(doc, null));
}
private static XmlLayoutScript CreateXmlBinaryLayout(XDocument doc, string sourcePath)
{
// Ensure root element is named correctly
if (doc.Root.Name.LocalName != Keywords.XmlDocumentRoot)
{
string msg = Resources.SyntaxExceptionXmlInvalidRootElement;
throw LayoutScriptException.Create <SyntaxException>(null, new XmlSourceEntity(doc.Root), msg, Keywords.XmlDocumentRoot);
}
// Read version
Version ver = GetLayoutVersion(doc);
// Ensure root element is not empty
if (!doc.Root.HasElements)
{
string msg = Resources.SyntaxExceptionEmptyLayout;
throw LayoutScriptException.Create <SyntaxException>(null, new XmlSourceEntity(doc.Root), msg);
}
// Create and return layout object
return(new XmlLayoutScript(doc, ver, sourcePath));
}
public static new XmlLayoutScript Load(string path)
{
// Load XML document
XDocument doc;
try
{
doc = XDocument.Load(path, LoadOptions.SetLineInfo);
}
catch (Exception e)
{
if (!(e is IOException) && !(e is XmlException))
{
throw;
}
string msg = e.Message;
throw LayoutScriptException.Create <LayoutScriptException>(null, e, null, msg);
}
// Create and return layout
return(CreateXmlBinaryLayout(doc, path));
}