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Posted 4 Nov 2006

Cat - A Statically Typed Programming Language Interpreter in C#

, 4 Nov 2006
This article contains the public domain implementation of an interpreter for a statically typed stack-based programming language in C# called Cat. The accompanying article is a high-level description of how the various modules work, a brief description of the language, and links to related work.
/// Public domain code by Christopher Diggins

using System;
using System.Collections.Generic;
using System.Text;

namespace Cat
    /// <summary>
    /// The config class contain global switches for controlling the behaviour 
    /// of the interpreter and compiler. 
    /// </summary>
    static class Config
        /// <summary>
        /// Controls whether inferred types will be output to the console.
        /// </summary>
        public static bool gbLogTypeInference = true;
        /// <summary>
        /// Controls whether interpreter will run unit tests on start-up
        /// </summary>
        public static bool gbUnitTesting = true;
        /// <summary>
        /// Turns on tests which may throw exceptions. This is useful
        /// to trun off when in debug mode, and exception handling is 
        /// done from within the IDE.
        /// </summary>
        public static bool gbUnitTestingWithExceptions = false;
        /// <summary>
        /// Forces the interpreter to run the failing test set. 
        /// </summary>
        public static bool gbTestKnownIssues = false;
        /// <summary>
        /// Controls how names are assigned to type variable declarations and type variables
        /// </summary>
        public static bool gbSimpleTypeNames = true;
        /// <summary>
        /// Controls whether or not to display the welcome text.
        /// </summary>
        public static bool gbShowLogo = true;
        /// <summary>
        /// Controls whether type checking and type inference is used. 
        /// If you turn this off, then no type checking is done.
        /// </summary>
        public static bool gbStaticTyping = false;

        /// <summary>
        /// Determines whether the contents of the stacks is reported 
        /// after each line entry into the interpreter.
        /// </summary>
        public static bool gbOutputStack = true;

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About the Author

Christopher Diggins
Software Developer Autodesk
Canada Canada
This article was written by Christopher Diggins, a computer science nerd who currently works at Autodesk as an SDK specialist.

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