practical common lisp

After so many years of development, LISP has evolved many dialects, including Common LISP, schema, and Emacs lisp. Select a "general" learning method first. Build Environment: sbcl + Slime Sbcl: (Common Lisp compiler) http://www.

is defined as a global variable or constant, you can use BOUNDP to test it. For example:> (BOUNDP ' C)>t(4) SETFSETF is a common assignment operator. The first time you use a setf assignment for a symbol (not defined as a local variable), the symbol is used by the system as a global variable. This is a method of implicitly defining global variables, but it is not worth advocating.> (setf *var* 1234)>1234Ii. Input and output(1)

ANSI Common Lisp ExercisesANSI Common Lisp ExerciseslispExercises Online-read Address:ansi Common Lisp ANSI Common Lisp Exerc

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"

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 cr

only object that is an atom and a list)1. TTrue *standard-output*Formatting habits 0. IndentYou should use the compiler's auto-indent to check for clerical errors instead of parentheses.1.0 function IndentAt least four spaces, if the line is required, then the item at the same level should clearly be aligned2.0 Macros and special formsTwo spaces3.0 SemicolonKeep the same indentation as the commented code1. BracketsClosing parentheses are always in the row of the last element of the list they ar

Original Posts http://www.linuxdown.net/install/soft/2016/0303/4903.htmlInstall Vimsudo dnf-y updatesudo DNF install vim-enhancedCommon LispOriginal posts: http://www.programgo.com/article/17905013763/Software that needs to be used:SBCL, the more popular one common Lisp realization;Emacs, as a development environment, although more complex, but more useful than the original command line;An interactive

) (tamara bruce suzanne) (vincent bruce suzanne) (wanda nil nil) (ivan george ellen) (julie george ellen) (marie george ellen) (nigel andre hillary) (frederick nil tamara) (zelda vincent wanda) (joshua ivan wanda) (quentin nil nil) (robert quentin julie) (olivia nigel marie) (peter nigel marie) (erica nil nil) (yvette robert zelda) (diane peter erica)))(defun father (x) (second (assoc x family)))(defun mother (x) (third (assoc x family)))(defu

stopEx 7.30(Mapcar # ' Append Words (mapcar # ' list ' (Uno dos tres quatro cinco))7.12 function functions' Represent function quote , # ' means function function , # ' cons equivalence with (function cons)> ' conscons> # ' cons## ' Returns a function object that can be called with Funcall> (setf G # ' (Lambda (x) (* x))) #7.13 Kwargs for applicative operators:from-endsuch as keyword parameters can also be applied to find-if,remove-if,reduce these functions> (Reduce # ' Cons ' (a b C D e)) ((((

Let macro of Common LISP is defined as follows: (Defmacro our-left (binds Body) '(lambda, (mapcar #' (lambda (x) (if (consp X) (Car X )) binds), @ body), @ (mapcar # '(lambda (x) (if (consp X) (cadr x) Nil )) binds); (Our-left (x 1) (Y 2) (+ x y) after expansion, it becomes => (lambda (x y) (+ x y) 1 2) here we can easily see that let is actually a Lambda syntactic sugar :) The let macro of scheme

10 PHP functions practical but not common, PHP function practical 1. Sys_getloadavg () SYS_GETLOADAVT () can obtain the system load condition. The function returns an array of three elements, each representing the average load for the system in the past 1, 5, and 15 minutes. Instead of letting the server down because of high load, it is better to die out a scrip

, you'll love it.Author Daniel Schwarz is a designer and developer who is currently traveling with his wife to experience the best of his travels. Daniel is co-founder, curator and editor of http://airwalk-design.com/, as well as creative director of Airwalk Studios. Yes, he's still a fan of Sketch.Static sketch Tutorial collection continues to update: "Sketch Design Classroom!" Learn the app design tool from scratch sketch (i) " "Sketch Design Classroom!" Learn the app design tool

Basic but practical: Summary of common LNMP commands and common lnmp commands 1. modify directory permissions[Root @ localhost ~] # Chmod 777/home/user Note: only set the permission of the/home/user directory to rwxrwxrwx.[Root @ localhost ~] # Chmod-R 777/home/user Note: Set the permissions of the entire/home/user directory and its files and subdirectories to rw

Summary of common operations on JavaScript strings (very practical) and javascript Summary String Truncation 1. substring () xString.substring(start,end) Substring () is the most commonly used string truncation method. It can receive two parameters (the parameter cannot be a negative value), which are the start position and end position of the truncation, it returns a new string containing all the character

Background:Recently, when embarking on the project, I realized the lack of JS. Although I've seen a lot of javascript videos, it's not always a big, hard case in a real project. So the basics of JavaScript need to be solid, and there's a series of blogs. This series of more emphasis on practical, theoretical parts can be see before the blog.The BOM (Browser object mode) browser objects model is an important part of JavaScript. It provides a series of