BBLogger

xLogger.cs

using System;
using System.Drawing;
using CodeKicker.BBCode;
using CodeKicker.BBCode.SyntaxTree;

namespace Xitsa
{
    public static class Logger
    {
        static BBCodeParser GetParser()
        {
            return new BBCodeParser(ErrorMode.ErrorFree, null, new[]
                {
                    new BBTag("b", "<b>", "</b>"),
                    new BBTag("i", "<i>", "</i>"),
                    new BBTag("size", "", "", new BBAttribute("size", ""), new BBAttribute("size", "size")),
                    new BBTag("colour", "", "", new BBAttribute("name", ""), new BBAttribute("name", "name")),
                    new BBTag("font", "", "", new BBAttribute("name", ""), new BBAttribute("name", "name")),
                });
        }
        public static void VisitTextNodes(SyntaxTreeNode node, Action<string> visitText, Func<TagNode, bool, bool> tagFilter)
        {
            if (node == null) throw new ArgumentNullException("node");
            if (visitText == null) throw new ArgumentNullException("visitText");

            switch (node)
            {
                case TextNode textNode:
                    visitText(textNode.Text);
                    break;
                case TagNode tagNode:
                    if ((tagFilter != null && !tagFilter(tagNode, true))) return; //skip filtered tags

                    foreach (var subNode in tagNode.SubNodes)
                        VisitTextNodes(subNode, visitText, tagFilter);

                    tagFilter(tagNode, false);
                    break;
                default:
                    foreach (var subNode in node.SubNodes)
                        VisitTextNodes(subNode, visitText, tagFilter);
                    break;
            }
        }

        /// <summary>
        /// Печатает лог с поддержкой bbcode
        /// </summary>
        public static void BBLog(System.Windows.Forms.RichTextBox RTB, string Message)
        {
            bool isFontBold = false;
            bool isFontItalic = false;
            float? FontSize = null;
            Color? FontColour = null;
            string FontName = null;
            var Parser = GetParser();
            var Result = Parser.ParseSyntaxTree(Message);
            VisitTextNodes(Result,
                (string Text) =>
                {
                    int Start = RTB.TextLength;
                    RTB.AppendText(Text);
                    RTB.Select(Start, RTB.TextLength - Start);
                    // Настройки шрифта
                    FontStyle Style = FontStyle.Regular;
                    if (isFontBold)
                        Style = Style | FontStyle.Bold;
                    if (isFontItalic)
                        Style = Style | FontStyle.Italic;
                    float NewFontSize = RTB.Font.Size;
                    if (FontSize.HasValue)
                        NewFontSize = FontSize.Value;
                    string NewFontName = RTB.Font.Name;
                    if (FontName != null)
                        NewFontName = FontName;
                    RTB.SelectionFont = new Font(NewFontName, NewFontSize, Style);
                    // Цвет выделения
                    if (FontColour.HasValue)
                        RTB.SelectionColor = FontColour.Value;
                    else
                        RTB.SelectionColor = RTB.ForeColor;
                    RTB.DeselectAll();
                },
                (TagNode Tag, bool isFirst) =>
                {
                    if (Tag.Tag.Name == "b")
                        isFontBold = isFirst;
                    else if (Tag.Tag.Name == "i")
                        isFontItalic = isFirst;
                    else if (Tag.Tag.Name == "size")
                    {
                        if (isFirst)
                        {
                            var attr = Tag.Tag.FindAttribute("");
                            if (Tag.AttributeValues.ContainsKey(attr))
                            {
                                var val = Tag.AttributeValues[attr];
                                float NewFontSize;
                                if (float.TryParse(val, out NewFontSize))
                                {
                                    FontSize = NewFontSize;
                                }
                            }
                        }
                        else
                        {
                            FontSize = null;
                        }
                    }
                    else if (Tag.Tag.Name == "colour")
                    {
                        if (isFirst)
                        {
                            var attr = Tag.Tag.FindAttribute("");
                            if (Tag.AttributeValues.ContainsKey(attr))
                            {
                                var val = Tag.AttributeValues[attr];
                                FontColour = Color.FromName(val);
                            }
                        }
                        else
                        {
                            FontColour = null;
                        }
                    }
                    else if (Tag.Tag.Name == "font")
                    {
                        if (isFirst)
                        {
                            var attr = Tag.Tag.FindAttribute("");
                            if (Tag.AttributeValues.ContainsKey(attr))
                            {
                                var val = Tag.AttributeValues[attr];
                                val = val.Replace("_", " ");
                                FontName = val;
                            }
                        }
                        else
                        {
                            FontName = null;
                        }
                    }
                    return true;
                }
            );
        }
    }
}

For CodeKicker.BBCode 5.0.0