C#窗口应用RICHTEXTBOX语法高亮着色代码

编写Microsoft SQL Server数据库Table自动生成C#代码(C#代码生成器)及其页面代码aspx与aspx.cs过程中，试图实现C#代码的自动语法高亮着色；网上倒是不少可用于网页的javascript或css的资源；用于C# WinForm的不多，关键是不太适用，只好些一个；需要应用 Collections命名空间；需使用哈希表(Hashtable)；

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    using System.Collections; 
    using System.Collections.Generic; 
    Hashtable keywords = new Hashtable(); 
    private void KeywordsInitialize() 
    { 
       keywords.Add("using", "1"); 
       keywords.Add("public", "1"); 
       keywords.Add("private", "1"); 
       keywords.Add("namespace", "1"); 
       keywords.Add("class", "1"); 
       keywords.Add("set", "1"); 
       keywords.Add("get", "1"); 
       keywords.Add("void", "1"); 
       keywords.Add("int", "1"); 
       keywords.Add("string", "1"); 
       keywords.Add("float", "1"); 
       keywords.Add("double", "1"); 
       keywords.Add("for", "1"); 
       keywords.Add("foreach", "1"); 
       keywords.Add("in", "1"); 
       keywords.Add("object", "1"); 
       keywords.Add("if", "1"); 
       keywords.Add("else", "1"); 
       keywords.Add("while", "1"); 
       keywords.Add("do", "1"); 
       keywords.Add("partial", "1"); 
       keywords.Add("switch", "1"); 
       keywords.Add("case", "1"); 
       keywords.Add("default", "1"); 
       keywords.Add("continue", "1"); 
       keywords.Add("break", "1"); 
       keywords.Add("return", "1"); 
       keywords.Add("new", "1"); 
       keywords.Add("bool", "1"); 
       keywords.Add("null", "1"); 
       keywords.Add("false", "1"); 
       keywords.Add("true", "1"); 
       keywords.Add("catch", "1"); 
       keywords.Add("finally", "1"); 
       keywords.Add("try", "1"); 
       keywords.Add("enum", "1"); 
       keywords.Add("extern", "1"); 
       keywords.Add("inline", "1"); 
       keywords.Add("char", "1"); 
       keywords.Add("byte", "1"); 
       keywords.Add("const", "1"); 
       keywords.Add("long", "1"); 
       keywords.Add("protected", "1"); 
       keywords.Add("short", "1"); 
       keywords.Add("signed", "1"); 
       keywords.Add("unsigned", "1"); 
       keywords.Add("struct", "1"); 
       keywords.Add("static", "1"); 
       keywords.Add("this", "1"); 
       keywords.Add("throw", "1"); 
       keywords.Add("union", "1"); 
       keywords.Add("virtual", "1"); 
       keywords.Add("abstract", "1"); 
       keywords.Add("event", "1"); 
       keywords.Add("as", "1"); 
       keywords.Add("explicit", "1"); 
       keywords.Add("base", "1"); 
       keywords.Add("operator", "1"); 
       keywords.Add("out", "1"); 
       keywords.Add("params", "1"); 
       keywords.Add("typeof", "1"); 
       keywords.Add("uint", "1"); 
       keywords.Add("ulong", "1"); 
       keywords.Add("checked", "1"); 
       keywords.Add("goto", "1"); 
       keywords.Add("unchecked", "1"); 
       keywords.Add("readonly", "1"); 
       keywords.Add("unsafe", "1"); 
       keywords.Add("implicit", "1"); 
       keywords.Add("ref", "1"); 
       keywords.Add("ushort", "1"); 
       keywords.Add("decimal", "1"); 
       keywords.Add("sbyte", "1"); 
       keywords.Add("interface", "1"); 
       keywords.Add("sealed", "1"); 
       keywords.Add("volatile", "1"); 
       keywords.Add("delegate", "1"); 
       keywords.Add("internal", "1"); 
       keywords.Add("is", "1"); 
       keywords.Add("sizeof", "1"); 
       keywords.Add("lock", "1"); 
       keywords.Add("stackalloc", "1"); 
       keywords.Add("var", "1"); 
       keywords.Add("value", "1"); 
       keywords.Add("yield", "1"); 
    } 
    /// <summary> 
    /// C#语法高亮着色器 
    /// </summary> 
    /// <param name="start">起始行号</param> 
    private void RichHighlight(int start) 
    { 
       //richTextBox1.Text = textBox4.Text; 
       string[] ln = richTextBox1.Text.Split("\n"); 
       int pos = 0; 
       int lnum = 0; 
       foreach (string lv in ln) 
       { 
           if (lnum >= start) 
           { 
               string ts = lv.Replace("(", " ").Replace(")", " "); 
               ts = ts.Replace("[", " ").Replace("]", " "); 
               ts = ts.Replace("{", " ").Replace("}", " "); 
               ts = ts.Replace(".", " ").Replace("=", " ").Replace(";", " "); 
               if (lv.Trim().StartsWith("//")) 
               { 
                   richTextBox1.Select(pos, lv.Length); 
                   richTextBox1.SelectionFont = new Font("宋体", 9, (FontStyle.Regular)); 
                   richTextBox1.SelectionColor = Color.Gray; 
                   pos += lv.Length + 1; 
                   continue; 
               } 
               if (lv.Trim().StartsWith("#")) 
               { 
                   richTextBox1.Select(pos, lv.Length); 
                   richTextBox1.SelectionFont = new Font("宋体", 9, (FontStyle.Regular)); 
                   richTextBox1.SelectionColor = Color.Green; 
                   pos += lv.Length + 1; 
                   continue; 
               } 
               ArrayList marks = new ArrayList(); 
               string smark = ""; 
               string last = ""; 
               bool inmark = false; 
               for (int i = 0; i < ts.Length; i++) 
               { 
                   if (ts.Substring(i, 1) == "\"" && last != "\\") 
                   { 
                       if (inmark) 
                       { 
                           marks.Add(smark + "," + i); 
                           smark = ""; 
                           inmark = false; 
                       } 
                       else 
                       { 
                           smark += i; 
                           inmark = true; 
                       } 
                   } 
                   last = ts.Substring(i, 1); 
               } 
               if (inmark) 
               { 
                   marks.Add(smark + "," + ts.Length); 
               } 
               string[] ta = ts.Split(" "); 
               int x = 0; 
               foreach (string tv in ta) 
               { 
                   if (tv.Length < 2) 
                   { 
                       x += tv.Length + 1; 
                       continue; 
                   } 
                   else 
                   { 
                       bool find = false; 
                       foreach (string px in marks) 
                       { 
                           string[] pa = px.Split(","); 
                           if (x >= Int32.Parse(pa[0]) && x < Int32.Parse(pa[1])) 
                           { 
                               find = true; 
                               break; 
                           } 
                       } 
                       if (!find) 
                       { 
                           if (keywords[tv] != null) 
                           { 
                               richTextBox1.Select(pos + x, tv.Length); 
                               richTextBox1.SelectionFont = new Font("宋体", 9, (FontStyle.Regular)); 
                               richTextBox1.SelectionColor = Color.Blue; 
                           } 
                       } 
                       x += tv.Length + 1; 
                   } 
               } 
               foreach (string px in marks) 
               { 
                   string[] pa = px.Split(","); 
                   richTextBox1.Select(pos + Int32.Parse(pa[0]), Int32.Parse(pa[1]) - Int32.Parse(pa[0]) + 1); 
                   richTextBox1.SelectionFont = new Font("宋体", 9, (FontStyle.Regular)); 
                   richTextBox1.SelectionColor = Color.DarkRed; 
               } 
           } 
           pos += lv.Length + 1; 
           lnum++; 
       } 
       // 设置一下，才能恢复；后续正确！ 
       richTextBox1.Select(0, 1); 
       richTextBox1.SelectionFont = new Font("宋体", 9, (FontStyle.Regular)); 
       richTextBox1.SelectionColor = Color.Black; 
    }