Added simple Markdown/HTML Generator

Use with:

"Bold Text".Bold();

"Other text".Italic();

"www.google.de".AsLink("Google")

TelegramBotBase/Markdown/Generator.cs

@@ -0,0 +1,112 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Telegram.Bot.Types.Enums;
+
+namespace TelegramBotBase.Markdown
+{
+    public static class Generator
+    {
+        public static ParseMode OutputMode { get; set; } = ParseMode.Markdown;
+
+        /// <summary>
+        /// Generates a link with title in Markdown or HTML
+        /// </summary>
+        /// <param name="url"></param>
+        /// <param name="title"></param>
+        /// <param name="tooltip"></param>
+        /// <returns></returns>
+        public static String AsLink(this String url, String title = null, String tooltip = null)
+        {
+            switch (OutputMode)
+            {
+                case ParseMode.Markdown:
+                    return "[" + (title ?? url) + "](" + url + " " + (tooltip ?? "") + ")";
+                case ParseMode.Html:
+                    return $"<a href=\"{url}\" title=\"{tooltip ?? ""}\">{title ?? ""}</b>";
+            }
+            return url;
+        }
+
+        /// <summary>
+        /// Returns a Link to the User, title is optional.
+        /// </summary>
+        /// <param name="userId"></param>
+        /// <param name="title"></param>
+        /// <returns></returns>
+        public static String MentionUser(this long userId, String title = null)
+        {
+            return AsLink("tg://user?id=" + userId.ToString(), title);
+        }
+
+        /// <summary>
+        /// Returns a bold link in Markdown or HTML
+        /// </summary>
+        /// <param name="text"></param>
+        /// <returns></returns>
+        public static String Bold(this String text)
+        {
+            switch (OutputMode)
+            {
+                case ParseMode.Markdown:
+                    return "**" + text + "**";
+                case ParseMode.Html:
+                    return "<b>" + text + "</b>";
+            }
+            return text;
+        }
+
+        /// <summary>
+        /// Returns a italic link in Markdown or HTML
+        /// </summary>
+        /// <param name="text"></param>
+        /// <returns></returns>
+        public static String Italic(this String text)
+        {
+            switch (OutputMode)
+            {
+                case ParseMode.Markdown:
+                    return "__" + text + "__";
+                case ParseMode.Html:
+                    return "<i>" + text + "</i>";
+            }
+            return text;
+        }
+
+        /// <summary>
+        /// Returns a monospace link in Markdown or HTML
+        /// </summary>
+        /// <param name="text"></param>
+        /// <returns></returns>
+        public static String Monospace(this String text)
+        {
+            switch (OutputMode)
+            {
+                case ParseMode.Markdown:
+                    return "`" + text + "`";
+                case ParseMode.Html:
+                    return "<code>" + text + "</code>";
+            }
+            return text;
+        }
+
+        /// <summary>
+        /// Returns a multi monospace link in Markdown or HTML
+        /// </summary>
+        /// <param name="text"></param>
+        /// <returns></returns>
+        public static String MultiMonospace(this String text)
+        {
+            switch (OutputMode)
+            {
+                case ParseMode.Markdown:
+                    return "```" + text + "```";
+                case ParseMode.Html:
+                    return "<pre>" + text + "</pre>";
+            }
+            return text;
+        }
+    }
+}