private static void ParseModules(CssSchema schema, Queue <FileInfo> modules)
{
while (modules.Count > 0)
{
var moduleFile = modules.Dequeue();
if (!moduleFile.Exists)
{
continue;
}
var document = XDocument.Load(moduleFile.FullName);
foreach (var element in document.Root.Elements())
{
switch (element.Name.LocalName)
{
case "CssAtDirective": ParseDirective(schema, element); break;
case "CssProperty": ParseProperty(schema, element); break;
case "CssPropertyValue": ParsePropertyValue(schema, element); break;
case "CssPseudo": ParsePseudo(schema, element); break;
default: Logger.Log(string.Format("Unknown css schema element '{0}'", element.Name.LocalName)); break;
}
}
}
}
public static ICssSchema Parse(XDocument document, DirectoryInfo directory)
{
var schema = new CssSchema();
ParseBrowsers(schema, document);
ParseModules(schema, CompileModules(document, directory));
return schema;
}
public static ICssSchema Parse(XDocument document, DirectoryInfo directory)
{
var schema = new CssSchema();
ParseBrowsers(schema, document);
ParseModules(schema, CompileModules(document, directory));
return(schema);
}
private static void ParsePseudo(CssSchema schema, XElement element)
{
var name = element.Attribute("name");
var description = element.Attribute("description");
if (!schema._Pseudos.ContainsKey(name.Value))
{
schema._Pseudos.Add(name.Value, new CssPseudo(name.Value, Optional(description)));
}
}
private static void ParsePropertyValue(CssSchema schema, XElement element)
{
var propertyName = element.Attribute("type");
CssProperty property;
if (!schema._Properties.TryGetValue(propertyName.Value, out property))
{
return;
}
AddValues(property, element);
}
private static void ParseBrowsers(CssSchema schema, XDocument document)
{
foreach (var browser in document.Root.Elements("Browser"))
{
var name = browser.Attribute("name");
var abbreviation = browser.Attribute("abbreviation");
if (name != null && abbreviation != null && !schema._Browsers.ContainsKey(abbreviation.Value))
{
schema._Browsers.Add(abbreviation.Value, new BrowserReference(abbreviation.Value, name.Value));
}
}
}
private static void ParseProperty(CssSchema schema, XElement element)
{
var name = element.Attribute("name") ?? element.Attribute("_locID");
// TODO: restriction
// TODO: type
var description = element.Attribute("description");
if (!schema._Properties.ContainsKey(name.Value))
{
var property = new CssProperty(name.Value, Optional(description));
schema._Properties.Add(name.Value, property);
AddValues(property, element);
}
}
public ICssSchema Load()
{
try
{
var path = Path.Combine(SchemaDirectory, "css-main.xml");
var file = new FileInfo(path);
if (!file.Exists)
{
return(null);
}
var document = XDocument.Load(path);
return(CssSchema.Parse(document, file.Directory));
}
catch (Exception ex)
{
Logger.Log(ex, "Failed to load schema.");
return(null);
}
}
private static void ParsePseudo(CssSchema schema, XElement element)
{
var name = element.Attribute("name");
var description = element.Attribute("description");
if (!schema._Pseudos.ContainsKey(name.Value))
schema._Pseudos.Add(name.Value, new CssPseudo(name.Value, Optional(description)));
}
private static void ParsePropertyValue(CssSchema schema, XElement element)
{
var propertyName = element.Attribute("type");
CssProperty property;
if (!schema._Properties.TryGetValue(propertyName.Value, out property))
return;
AddValues(property, element);
}
private static void ParseProperty(CssSchema schema, XElement element)
{
var name = element.Attribute("name") ?? element.Attribute("_locID");
// TODO: restriction
// TODO: type
var description = element.Attribute("description");
if (!schema._Properties.ContainsKey(name.Value))
{
var property = new CssProperty(name.Value, Optional(description));
schema._Properties.Add(name.Value, property);
AddValues(property, element);
}
}
private static void ParseModules(CssSchema schema, Queue<FileInfo> modules)
{
while (modules.Count > 0)
{
var moduleFile = modules.Dequeue();
if (!moduleFile.Exists) continue;
var document = XDocument.Load(moduleFile.FullName);
foreach (var element in document.Root.Elements())
{
switch (element.Name.LocalName)
{
case "CssAtDirective": ParseDirective(schema, element); break;
case "CssProperty": ParseProperty(schema, element); break;
case "CssPropertyValue": ParsePropertyValue(schema, element); break;
case "CssPseudo": ParsePseudo(schema, element); break;
default: Logger.Log(string.Format("Unknown css schema element '{0}'", element.Name.LocalName)); break;
}
}
}
}
private static void ParseBrowsers(CssSchema schema, XDocument document)
{
foreach (var browser in document.Root.Elements("Browser"))
{
var name = browser.Attribute("name");
var abbreviation = browser.Attribute("abbreviation");
if (name != null && abbreviation != null && !schema._Browsers.ContainsKey(abbreviation.Value))
schema._Browsers.Add(abbreviation.Value, new BrowserReference(abbreviation.Value, name.Value));
}
}
