/// <summary>
/// Imports the settings from another highlighting strategy.
/// </summary>
/// <param name="source">The source.</param>
protected void ImportSettingsFrom(DefaultHighlightingStrategy source)
{
if (source == null)
throw new ArgumentNullException("source");
_properties = source._properties;
_extensions = source._extensions;
_digitColor = source._digitColor;
_defaultRuleSet = source._defaultRuleSet;
_name = source._name;
_rules = source._rules;
_environmentColors = source._environmentColors;
_defaultTextColor = source._defaultTextColor;
}
/// <summary>
/// Imports the settings from another highlighting strategy.
/// </summary>
/// <param name="source">The source.</param>
protected void ImportSettingsFrom(DefaultHighlightingStrategy source)
{
if (source == null)
throw new ArgumentNullException("source");
properties = source.properties;
extensions = source.extensions;
digitColor = source.digitColor;
defaultRuleSet = source.defaultRuleSet;
name = source.name;
rules = source.rules;
environmentColors = source.environmentColors;
defaultTextColor = source.defaultTextColor;
}
/// <summary>
/// Parses a highlighting definition.
/// </summary>
/// <param name="highlighter">The highlighting strategy, which is set.</param>
/// <param name="syntaxMode">The syntax highlighting mode.</param>
/// <param name="xmlReader">The XML reader.</param>
/// <returns></returns>
private static DefaultHighlightingStrategy Parse(DefaultHighlightingStrategy highlighter, SyntaxMode syntaxMode, XmlReader xmlReader)
{
if (syntaxMode == null)
throw new ArgumentNullException("syntaxMode");
if (xmlReader == null)
throw new ArgumentNullException("xmlReader");
try
{
List<ValidationEventArgs> errors = null;
XmlReaderSettings settings = new XmlReaderSettings();
Stream shemaStream = typeof(HighlightingDefinitionParser).Assembly.GetManifestResourceStream("DigitalRune.Windows.TextEditor.Resources.Mode.xsd");
settings.Schemas.Add("", new XmlTextReader(shemaStream));
settings.Schemas.ValidationEventHandler += delegate(object sender, ValidationEventArgs args)
{
if (errors == null)
{
errors = new List<ValidationEventArgs>();
}
errors.Add(args);
};
settings.ValidationType = ValidationType.Schema;
XmlReader validatingReader = XmlReader.Create(xmlReader, settings);
XmlDocument doc = new XmlDocument();
doc.Load(validatingReader);
if (highlighter == null)
highlighter = new DefaultHighlightingStrategy(doc.DocumentElement.Attributes["name"].InnerText);
if (doc.DocumentElement.HasAttribute("extends"))
{
KeyValuePair<SyntaxMode, ISyntaxModeFileProvider> entry = HighlightingManager.Manager.FindHighlighterEntry(doc.DocumentElement.GetAttribute("extends"));
if (entry.Key == null)
{
throw new HighlightingDefinitionInvalidException("Cannot find referenced highlighting source " + doc.DocumentElement.GetAttribute("extends"));
}
else
{
highlighter = Parse(highlighter, entry.Key, entry.Value.GetSyntaxModeFile(entry.Key));
if (highlighter == null) return null;
}
}
if (doc.DocumentElement.HasAttribute("extensions"))
{
highlighter.Extensions = doc.DocumentElement.GetAttribute("extensions").Split(new char[] { ';', '|' });
}
XmlElement environment = doc.DocumentElement["Environment"];
if (environment != null)
{
foreach (XmlNode node in environment.ChildNodes)
{
if (node is XmlElement)
{
XmlElement el = (XmlElement) node;
if (el.Name == "Custom")
highlighter.SetColorFor(el.GetAttribute("name"), el.HasAttribute("bgcolor") ? new HighlightBackground(el) : new HighlightColor(el));
else
highlighter.SetColorFor(el.Name, el.HasAttribute("bgcolor") ? new HighlightBackground(el) : new HighlightColor(el));
}
}
}
// parse properties
if (doc.DocumentElement["Properties"] != null)
foreach (XmlElement propertyElement in doc.DocumentElement["Properties"].ChildNodes)
highlighter.Properties[propertyElement.Attributes["name"].InnerText] = propertyElement.Attributes["value"].InnerText;
if (doc.DocumentElement["Digits"] != null)
highlighter.DigitColor = new HighlightColor(doc.DocumentElement["Digits"]);
XmlNodeList nodes = doc.DocumentElement.GetElementsByTagName("RuleSet");
foreach (XmlElement element in nodes)
highlighter.AddRuleSet(new HighlightRuleSet(element));
xmlReader.Close();
if (errors != null)
{
StringBuilder msg = new StringBuilder();
foreach (ValidationEventArgs args in errors)
{
msg.AppendLine(args.Message);
}
throw new HighlightingDefinitionInvalidException(msg.ToString());
}
else
{
return highlighter;
}
}
catch (Exception e)
{
throw new HighlightingDefinitionInvalidException("Could not load mode definition file '" + syntaxMode.FileName + "'.\n", e);
}
}
void CreateDefaultHighlightingStrategy()
{
DefaultHighlightingStrategy defaultHighlightingStrategy = new DefaultHighlightingStrategy();
defaultHighlightingStrategy.Extensions = new string[] { };
defaultHighlightingStrategy.Rules.Add(new HighlightRuleSet());
_highlightingDefinitions["Default"] = defaultHighlightingStrategy;
}