lisp tutorial

Compile a simple Lisp interpreter in Python. This article has two purposes: one is to describe the general method of implementing the computer language interpreter, and the other is to show how to use Python to implement a subset of the Lisp dialect Scheme. I call my interpreter Lispy (lis. py ). A few years ago, I introduced how to use Java to write a Scheme interpreter, and I wrote a version using the Com

Main Features:Commonlisp:lisp, a large language of industrial intensity. Have the highest theoretical expression, very complex, learning is very difficult. Like the people hold to the sky, think it is the end of all languages, do not like the people nausea and death, feel all kinds of confusion and redundancy, missing beauty. (Industrialized languages)Scheme: A static scope and mandatory strict tail recursive implementation features, the idea is that programming language development should not b

From the language of Lisp-Chen GuangxiFirst, assign a value(1) LetLisp uses let to complete the definition of a local variable. The form is: (Let (var1 exp1) (var2 exp2) ... (Varn expn))ExpsWhere the operator let indicates that a local variable will be defined. (Vari expi) vari the variable name, the initial value of which is the value of the expression Expi. The exps part of the Let statement is the expression collection that completes the required p

Haha, the question is a little big. In fact, I just want to say a little instant. It's good to take a vacation. You can study at home. Today, I read more than half of Paul Graham's book hackers painters. Reading Paul's article is always a pleasure, and it will take a few hours without knowing it. When I put down my book, it seems like a fascinating music show stops, and I am still immersed in it. After a while, I will slowly return to reality. I may not agree on his point of view, but Paul is

10000)(Require ' package); M-x list-packages(Add-to-list ' package-archives' ("Melpa". "http://melpa.org/packages/") t)(Add-to-list ' Load-path "~/.emacs.d/elpa/vlf-1.7/")(package-initialize); auto set Load-path of installed pkg and load them;; Common Lisp + Slime(Defun My-load-slime-and-set ()(interactive) "The Magic of Eclip command"(Load (expand-file-name "E:/pl/lispstick/quicklisp-down/slime-helper.el"))(setq inferior-

In a word, nothing is weaker than Excel computing, and of course graphics is not. For programmers, using the mouse to drag or write the calculation formula with Lisp which is more in line with the habit of thinking, I think the latter. I will only introduce the Lisp calculation formula, if you focus on a simple Calc calculation formula, you can refer to the official document.How to refer to other fields in

1, usually when we use Emacs to learn elisp, first open a test file such as Lisp.el, then Emacs will automatically switch to Emacs-lisp mode as follows:Enter the various grammars we want to learn in this lisp.el.2. The difference between a list and a functionThe Official Handbook contains the following:The single apostrophe, ', which I put in front of some of the example lists in preceding sections is called a quote:When it precedes a list, it tells

This article by larrylgq prepared, reproduced please note the Source: http://blog.csdn.net/larrylgq/article/details/7395261 Author: Lu guiqiang Email: larry.lv.word@gmail.com Lisp uses special operators to extend the syntax, but the number of special operators in lisp is fixed. To solve this problem, LISP introduces macros, which do not directly do th

In Win32 GNU Common Lisp development environment, after GNU Common Lisp is installed in Win32 environment, a shortcut is generated in the Start menu to view its attributes,The start position is blank. After the shortcut is copied to any directory for running, the running directory will be used as the current path. I create a lispworks folder on the desktop as the project directory for practice, and then use

ANSI Common Lisp ExercisesANSI Common Lisp ExerciseslispExercises Online-read Address:ansi Common Lisp ANSI Common Lisp Exercises Chapter 2 Exercises Chapter 3 Exercises Chapter 2 Exercises1.(a) (+ (-5 1) (+ 3 7)) ==> 14(b) (List 1 (+ 2 3)) ==> (1 5)(c) (if (LISTP 1) (+ 1 2) (

In Lisp, a list is a value pair. You can operate cons to create a value pair. For example, cons 1 2 and 1 and 2 are two values of the value pair. Cons operations are closures, so the elements that constitute the list can be atomic or list types, such as cons 1 (cons 2 3 )). The operations for reading the list include car And cdr, which are the "Left value" and "right value" of the read value pair, for example (car '(1 2), return 1, (cdr '(1 2) returns

This is a creation in Article, where the information may have evolved or changed. I'm not going to use prefix expressions specifically for Lisp to go online and look for articles or books advocating this. I'm not a fan of Lisp, either. Learning Lisp at first is nothing more than learning its great ideas.But when I slowly learned to

This is a created article in which the information may have evolved or changed. Last October, that was the plan. Also in the last month or so, the time to get out of a go language implementation of Lisp. Of course, not with Common Lisp, the number of functions is far inferior, also cannot define the type/class, and the macro system is very simple. But in general, it is also the realization of the basic

Re:generators (iterators) for Gnu Emacs from: Richard Stallman Subject: Re:generators (iterators) for Gnu Emacs Date: Mon, Dec 2014 15:59:22-0500 [[to any NSA and FBI agents reading my email:please consider]] [[[Whether defending the US constitution against all enemies,]] [[[Foreign or domestic, requires you to follow Snowden ' s example.]] > I wonder whether perhaps Richard ran into the need to use prefixes >

Label: Ar data SP c AMP Linux time r c ++The school's embedded lab started recruiting people. I also thought for a long time. What should I do? embedded? Server? Website? Android?Think about these things. I don't even have a foundation. What will I do? C/C ++ syntax, what can I do with basic Linux commands.I seem to have no direction to study all day. I have re-examined myself, and the foundation is not strong. At least the computer composition, operating system, and compilationI have not had a

ArticleDirectory 1. configuration of the lisp Interpreter 2. Configure the editor 3. Other resources Although I am also an old programmer, it is especially difficult to find a usable lisp environment. It is difficult for you to choose one in this pile of Lisp implementations. Choice is suffering, and finally I chose GNU clisp (http://www.clisp.org /).

This contactCodeMore, and have some in-depth understanding of various programming methods. Especially when I learned lisp, I had a little bit of experience. Like lisp, the simplest syntax is used for functional programming. According to my guess, LISP comes from the lambda algorithm (derived from the three principles of the lambda algorithm into seven princip

), and then C-c C-c is M-x comment-region The cancellation is like this: M-x recomment-region Added on 08.05.14 Emacs Bookmark-related commands Ctrl x R m: creating bookmarks CTRL x R L: Open Bookmark list CTRL x R B: Jump to the location specified by the bookmark M-x bookmark-write: Write a bookmark to a specific file M-x bookmark-load: Loading bookmarks from specified file ----------- What is lisp and what is List

describes the basic composition of the interpreter.The basic process from receiving the source program to the final execution of the interpreter is: Lexical analysis. This step decomposes the source code into the smallest constituent element of the language (a short string of one). If var a = 1; it is broken down into a [‘var‘, ‘a‘, ‘=‘, ‘1‘] . Like this short string, we call it "Token". Syntax analysis. This step analyzes the Token list according to the language's own grammar rule

to learn WIN32 API, or GUI with a variety of third-party interface library, network programming with sockets sockets and so on, but also learn a lot of operating system principles, computer networks, algorithms, and so on!!! Even string processing is not handy! But want to directly manipulate memory and afraid of assembly language trouble, please use C! C + + is too complex, not afraid of the words on it, although also with C almost finished also can not do anything too much, or to learn a lot