public void HighlightSyntax(SyntaxDescriptor desc, Range range)
        {
            //set style order
            range.tb.ClearStylesBuffer();
            for (int i = 0; i < desc.styles.Count; i++)
                range.tb.Styles[i] = desc.styles[i];
            //brackets
            char[] oldBrackets = RememberBrackets(range.tb);
            range.tb.LeftBracket = desc.leftBracket;
            range.tb.RightBracket = desc.rightBracket;
            range.tb.LeftBracket2 = desc.leftBracket2;
            range.tb.RightBracket2 = desc.rightBracket2;
            //clear styles of range
            range.ClearStyle(desc.styles.ToArray());
            //highlight syntax
            foreach (RuleDesc rule in desc.rules)
                range.SetStyle(rule.style, rule.Regex);
            //clear folding
            range.ClearFoldingMarkers();
            //folding markers
            foreach (FoldingDesc folding in desc.foldings)
                range.SetFoldingMarkers(folding.startMarkerRegex, folding.finishMarkerRegex, folding.options);

            //
            RestoreBrackets(range.tb, oldBrackets);
        }
        public static SyntaxDescriptor ParseXmlDescription(XmlDocument doc)
        {
            var desc = new SyntaxDescriptor();
            XmlNode brackets = doc.SelectSingleNode("doc/brackets");
            if (brackets != null)
            {
                if (brackets.Attributes["left"] == null || brackets.Attributes["right"] == null ||
                    brackets.Attributes["left"].Value == "" || brackets.Attributes["right"].Value == "")
                {
                    desc.leftBracket = '\x0';
                    desc.rightBracket = '\x0';
                }
                else
                {
                    desc.leftBracket = brackets.Attributes["left"].Value[0];
                    desc.rightBracket = brackets.Attributes["right"].Value[0];
                }

                if (brackets.Attributes["left2"] == null || brackets.Attributes["right2"] == null ||
                    brackets.Attributes["left2"].Value == "" || brackets.Attributes["right2"].Value == "")
                {
                    desc.leftBracket2 = '\x0';
                    desc.rightBracket2 = '\x0';
                }
                else
                {
                    desc.leftBracket2 = brackets.Attributes["left2"].Value[0];
                    desc.rightBracket2 = brackets.Attributes["right2"].Value[0];
                }

                if (brackets.Attributes["strategy"] == null || brackets.Attributes["strategy"].Value == "")
                    desc.bracketsHighlightStrategy = BracketsHighlightStrategy.Strategy2;
                else
                    desc.bracketsHighlightStrategy = (BracketsHighlightStrategy)Enum.Parse(typeof(BracketsHighlightStrategy), brackets.Attributes["strategy"].Value);
            }

            var styleByName = new Dictionary<string, Style>();

            foreach (XmlNode style in doc.SelectNodes("doc/style"))
            {
                Style s = ParseStyle(style);
                styleByName[style.Attributes["name"].Value] = s;
                desc.styles.Add(s);
            }
            foreach (XmlNode rule in doc.SelectNodes("doc/rule"))
                desc.rules.Add(ParseRule(rule, styleByName));
            foreach (XmlNode folding in doc.SelectNodes("doc/folding"))
                desc.foldings.Add(ParseFolding(folding));

            return desc;
        }