I was a bit bored just now and since the WYSIWYG editor of WordPress 2.9.2 doesn’t work as optimal as I had hoped, I decided to write my own program that translates forum posts with BB code into HTML.<\/p>\n
Of course I could have put all these replace functions into the code but then I would have to adapt the code every time I find a new tag.<\/p>\n
So I thought this might be a good time to toy with the Inline Compiler of C#. And if done right, it is relatively easy.<\/p>\n
Here’s my first Inline Compiling Code Snippet (it doesn’t contain any error handling and some such, but you get the idea how it works):<\/p>\n
<\/p>\n
\n\r\nusing System;\r\nusing System.CodeDom.Compiler;\r\nusing Microsoft.CSharp;\r\nusing System.Xml.Serialization;\r\nusing System.IO;\r\nusing System.Text;\r\n\r\nnamespace DoenaSoft.InlineCompiling\r\n{\r\n public static class Program\r\n {\r\n static void Main()\r\n { \r\n ParamList pl;\r\n\r\n \/\/to create a sample XML file:\r\n pl = new ParamList();\r\n pl.Params = new Param[1];\r\n pl.Params[0] = new Param();\r\n pl.Params[0].Name = \"Kursiver Text\";\r\n pl.Params[0].Regex \r\n = \"\\\\\\\\[i\\\\\\\\](?'Text'.+?)\\\\\\\\[\/i\\\\\\\\]\";\r\n pl.Params[0].RegexOptions = \"RegexOptions.Compiled\"\r\n + \"| RegexOptions.Singleline \"\r\n + \"| RegexOptions.IgnoreCase\";\r\n pl.Params[0].Code = \"\\\"\\\"\"\r\n + \" + match.Groups[\\\"Text\\\"].Value + \\\"<\/em>\\\"\";\r\n using(FileStream fs = new FileStream(\"params.xml\"\r\n , FileMode.Create, FileAccess.Write\r\n , FileShare.None))\r\n {\r\n XmlSerializer xmls \r\n = new XmlSerializer(typeof(ParamList));\r\n\r\n xmls.Serialize(fs, pl);\r\n }\r\n \/\/end creating sample XML file\r\n\r\n using(FileStream fs = new FileStream(\"params.xml\"\r\n , FileMode.Open, FileAccess.Read\r\n , FileShare.Read))\r\n {\r\n XmlSerializer xmls \r\n = new XmlSerializer(typeof(ParamList));\r\n\r\n pl = (ParamList)(xmls.Deserialize(fs));\r\n }\r\n\r\n String text = \"[i]some text[\/i]\";\r\n\r\n foreach(Param param in pl.Params)\r\n {\r\n CSharpCodeProvider scp;\r\n CompilerParameters cp;\r\n CompilerResults cr;\r\n Object replacer;\r\n StringBuilder sb;\r\n\r\n sb = new StringBuilder();\r\n sb.AppendLine(\"using System;\");\r\n sb.AppendLine(\"using System.Text.\"\r\n + \"RegularExpressions;\");\r\n sb.AppendLine();\r\n sb.AppendLine(\"public class RegexReplacer\");\r\n sb.AppendLine(\"{\");\r\n sb.AppendLine(\" private static readonly Regex \"\r\n + \"s_Regex = new Regex(\\\"\" + param.Regex \r\n + \"\\\", \" + param.RegexOptions + \");\");\r\n sb.AppendLine();\r\n sb.AppendLine(\" private String Replace(Match \"\r\n + \"match)\");\r\n sb.AppendLine(\" {\");\r\n sb.AppendLine(\" return (\" + param.Code \r\n + \");\");\r\n sb.AppendLine(\" }\");\r\n sb.AppendLine();\r\n sb.AppendLine(\" public String Replace(String \"\r\n + \"text)\");\r\n sb.AppendLine(\" {\");\r\n sb.AppendLine(\" return (s_Regex.Replace(text\"\r\n + \", new MatchEvaluator(this.Replace)));\");\r\n sb.AppendLine(\" }\");\r\n sb.AppendLine(\"}\");\r\n\r\n scp = new CSharpCodeProvider();\r\n cp = new CompilerParameters();\r\n cp.ReferencedAssemblies.Add(\"System.dll\");\r\n cr = scp.CompileAssemblyFromSource(cp\r\n , sb.ToString());\r\n replacer = cr.CompiledAssembly\r\n .CreateInstance(\"RegexReplacer\");\r\n text = replacer.GetType().GetMethod(\"Replace\")\r\n .Invoke(replacer, new Object[] { text })\r\n .ToString();\r\n }\r\n }\r\n }\r\n\r\n [Serializable()]\r\n public class ParamList\r\n {\r\n [XmlArrayItem(\"Param\")]\r\n public Param[] Params;\r\n }\r\n\r\n [Serializable()]\r\n public class Param\r\n {\r\n public String Name;\r\n public String Regex;\r\n public String RegexOptions;\r\n public String Code;\r\n }\r\n}\r\n<\/pre>\n<\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" |