object IXshdVisitor.VisitRuleSet(XshdRuleSet ruleSet)
{
writer.WriteStartElement("RuleSet", Namespace);
if (ruleSet.Name != null)
writer.WriteAttributeString("name", ruleSet.Name);
WriteBoolAttribute("ignoreCase", ruleSet.IgnoreCase);
ruleSet.AcceptElements(this);
writer.WriteEndElement();
return null;
}
XshdSpan ImportSpan(XmlElement element)
{
XshdSpan span = new XshdSpan();
if (element.HasAttribute("rule")) {
span.RuleSetReference = new XshdReference<XshdRuleSet>(null, element.GetAttribute("rule"));
}
char escapeCharacter = ruleSetEscapeCharacter;
if (element.HasAttribute("escapecharacter")) {
escapeCharacter = element.GetAttribute("escapecharacter")[0];
}
span.Multiline = !(element.GetBoolAttribute("stopateol") ?? false);
span.SpanColorReference = GetColorReference(element);
span.BeginRegexType = XshdRegexType.IgnorePatternWhitespace;
span.BeginRegex = ImportRegex(element["Begin"].InnerText,
element["Begin"].GetBoolAttribute("singleword") ?? false,
element["Begin"].GetBoolAttribute("startofline"));
span.BeginColorReference = GetColorReference(element["Begin"]);
string endElementText = string.Empty;
if (element["End"] != null) {
span.EndRegexType = XshdRegexType.IgnorePatternWhitespace;
endElementText = element["End"].InnerText;
span.EndRegex = ImportRegex(endElementText,
element["End"].GetBoolAttribute("singleword") ?? false,
null);
span.EndColorReference = GetColorReference(element["End"]);
}
if (escapeCharacter != '\0') {
XshdRuleSet ruleSet = new XshdRuleSet();
if (endElementText.Length == 1 && endElementText[0] == escapeCharacter) {
// ""-style escape
ruleSet.Elements.Add(new XshdSpan {
BeginRegex = Regex.Escape(endElementText + endElementText),
EndRegex = ""
});
} else {
// \"-style escape
ruleSet.Elements.Add(new XshdSpan {
BeginRegex = Regex.Escape(escapeCharacter.ToString()),
EndRegex = "."
});
}
if (span.RuleSetReference.ReferencedElement != null) {
ruleSet.Elements.Add(new XshdImport { RuleSetReference = span.RuleSetReference });
}
span.RuleSetReference = new XshdReference<XshdRuleSet>(ruleSet);
}
return span;
}
static XshdRuleSet ParseRuleSet(XmlReader reader)
{
XshdRuleSet ruleSet = new XshdRuleSet();
SetPosition(ruleSet, reader);
ruleSet.Name = reader.GetAttribute("name");
ruleSet.IgnoreCase = reader.GetBoolAttribute("ignoreCase");
CheckElementName(reader, ruleSet.Name);
ParseElements(ruleSet.Elements, reader);
return ruleSet;
}
XshdRuleSet ImportRuleSet(XmlElement element)
{
XshdRuleSet ruleSet = new XshdRuleSet();
ruleSet.Name = element.GetAttributeOrNull("name");
if (element.HasAttribute("escapecharacter")) {
ruleSetEscapeCharacter = element.GetAttribute("escapecharacter")[0];
} else {
ruleSetEscapeCharacter = '\0';
}
if (element.HasAttribute("reference")) {
ruleSet.Elements.Add(
new XshdImport { RuleSetReference = new XshdReference<XshdRuleSet>(
element.GetAttribute("reference"), string.Empty
) });
}
ruleSet.IgnoreCase = element.GetBoolAttribute("ignorecase");
foreach (XmlElement el in element.GetElementsByTagName("KeyWords")) {
XshdKeywords keywords = new XshdKeywords();
keywords.ColorReference = GetColorReference(el);
// we have to handle old syntax highlighting definitions that contain
// empty keywords or empty keyword groups
foreach (XmlElement node in el.GetElementsByTagName("Key")) {
string word = node.GetAttribute("word");
if (!string.IsNullOrEmpty(word))
keywords.Words.Add(word);
}
if (keywords.Words.Count > 0) {
ruleSet.Elements.Add(keywords);
}
}
foreach (XmlElement el in element.GetElementsByTagName("Span")) {
ruleSet.Elements.Add(ImportSpan(el));
}
foreach (XmlElement el in element.GetElementsByTagName("MarkPrevious")) {
ruleSet.Elements.Add(ImportMarkPrevNext(el, false));
}
foreach (XmlElement el in element.GetElementsByTagName("MarkFollowing")) {
ruleSet.Elements.Add(ImportMarkPrevNext(el, true));
}
return ruleSet;
}