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More Occam's Razor C to Java Translator Theory of Morality II


A new programming language called Lisp++ Free Stuff

Abstract

While spending seven months writing a computer game called R4: Rocketman in C++ I ran into some problems with the C++ language. From the lessons learnt from writing this large (approximately 25,000 lines of code) program I have worked out how to eliminate these problems with the C++ language by merging the best of C++ with the best of Lisp to produce a new language which I will call The Lisp++ Programming Language (at the risk of confusion with an unrelated software package called Lisp++) that as its name suggests combines the expressiveness of Lisp with the efficiency of C++. You can view the cover jacket of my book by clicking on the image on the right of this paragraph. You can view the actual book by clicking here.


1. Problems with C++

  • It is problematic how when the source code has more than one class, not all methods can be have their method bodies defined within the class that they belong to. Lisp++ emulates Java in this respect so that every method can be put directly inside a class. Here is an example of some code that won't compile under C++, but whose counterpart will compile under Java:

Cover Page

2. How Lisp++ works

Lisp++ code resembles Lisp code. In Lisp++, the Emacs editor is used as a Lisp interpreter which compiles Lisp++ code into C++ code. Then the G++ compiler is used to compile C++ code into machine language code. The basis of the Lisp interpreter is a new Lisp function which I will call lisp++2c++ compiles every file in the directory variable *directory*. Here is an example of some Lisp++ code:


(cfunction (cret void) (cname my_function) (cargs)
 (s int x = 0;)
 (s foo(f (123 * 456) hello);)
 (s bar(f 123 (456 + 789) abc);)
 (cif (abc)
     (s dmp::cout << "abc\n";)
  celseif (def)
     (s dmp::cout << "def\n";)
  celseif (ghi)
     (s dmp::cout << "ghi\n";)
  celse
     (s dmp::cout << "jkl\n";))
  (cfor ((s int i=0;) (s i<10;) (s i++))
     (s dmp::cout << i << "\n";)))
which compiles to the following C++ code:

void my_function()
{
   int x = 0;
   foo((123 * 456),hello);
   bar(123,(456 + 789),abc);
   if (abc)
   {
      dmp::cout << "abc\n";
   }
   else if (def)
   {
      dmp::cout << "def\n";
   }
   else if (ghi)
   {
      dmp::cout << "ghi\n";
   }
   else
   {
      dmp::cout << "jkl\n";
   }
   for (int i=0; i<10; i++)
   {
      dmp::cout << i << '\n';
   }
}
You can download the source code to c++2lisp++ and lisp++2c++.
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| Main Menu | Research Projects | Photo Album | Curriculum Vitae | The Greatest Artists |
| Email Address | Computer Games | Web Design | Java Training Wheels | The Fly (A Story) |
| Political Activism | Bob Dylan Quotes+ | My Life Story | Smoking Cessation | Other Links |
| Debugging Macros | String Class I | Linked List System I | Java for C Programmers | Naming Convention |
| String Class II | How I use m4 | Strings III | Symmetrical I/O | Linked Lists II |
| Run-Time Type Info | Virtual Methods | An Array System | Science & Religion | Submodes |
| Nested Packages | Memory Leaks | Garbage Collection | Internet & Poverty | What is Knowledge? |
| Limits of Evolution | Emacs Additions | Function Plotter | Romantic Love | The Next Big Thing |
| Science Fiction | Faster Compilation | Theory of Morality | Elisp Scoping | Elisp Advice |
| S.O.G.M. Pattern | Safe Properties | School Bullying | Charisma Control | Life and Death |
| Splitting Java | Multiple Ctors | Religious Beliefs | Conversation 1 | Conversation 2 |
| J.T.W. Language | Emacs Additions II | Build Counter | Relation Plotter | Lisp++ Language |
| Memory Leaks II | Super Constructors | CRUD Implementation | Order a Website Form | There Is An Afterlife |
| More Occam's Razor | C to Java Translator | Theory of Morality II
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