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ZelWiki.Engine.Library/Interfaces/IFunctionHandler.cs

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+using ZelWiki.Engine.Function;
+
+namespace ZelWiki.Engine.Library.Interfaces
+{
+    /// <summary>
+    /// Base function handler for standard, post-processing, scoped and processing-instruction functions.
+    /// </summary>
+    public interface IFunctionHandler
+    {
+        /// <summary>
+        /// Returns a collection of function prototypes.
+        /// </summary>
+        /// <returns></returns>
+        public FunctionPrototypeCollection Prototypes { get; }
+
+        /// <summary>
+        /// Called to handle function calls when proper prototypes are matched.
+        /// </summary>
+        /// <param name="state">Reference to the wiki state object</param>
+        /// <param name="function">The parsed function call and all its parameters and their values.</param>
+        /// <param name="scopeBody">For scope functions, this is the text that the function is designed to affect.</param>
+        public HandlerResult Handle(IZelEngineState state, FunctionCall function, string? scopeBody = null);
+    }
+}