setq may be used for assignment of both lexical and dynamic variables. Last updated: 2012-04-10. Type: Integer, Real, String, List, Symbol, File, Subroutine, ads_name, T, or nil . Slam poetry is a little bit of an obsession of mine, and as a teacher that has taught grades 6-12 ELA, I’m always scrolling through slam poems to find ones that are both inspiring, awesome, and appropriate for the age group. Strings in Common Lisp are vectors, i.e., one-dimensional array of characters. I’ve got you. Emacs Lisp: print, princ, prin1, format, message. In part 3 we will have a look at a more advanced List Manipulation Example. Syntax: cond {clause}* => result*. Simple Printing with “message” The most basic printing function is message. Macro COND. This sample file defines two functions and uses the Visual LISP vl-acad-defun function to explicitly export them to the AutoLISP environment. clause::= (test-form form*) Arguments and Values: test-form---a form.. forms---an implicit progn.. results---the values of the forms in the first clause whose test-form yields true, or the primary value of the test-form if there are no forms in that clause, or else nil if no test-form yields true.. Date: 2010-08-07. String literals are enclosed in double quotes. Here's another example : (defun c:loop2 (setq ptlist nil) (while (setq pt (getpoint "\nEnter Point or RETURN when done: ")) (setq ptlist (append ptlist (list pt))) ) (princ) ) This example keeps on asking for a point and adding the point to a list of points, called ptlist. By Xah Lee. Only the specified expr is printed; no newline or space is included. List Manipulation - Part 3. If you don't know elisp, first take a look at Emacs Lisp Basics. Most … First form1 is evaluated and the result is stored in the variable var1, then form2 is evaluated and the result stored in var2, and so forth. It is good practice (and manners) when writing Lisp routines to restore the system environment to the state that your program found it in on completion of your application. file-desc. (setq var1 form1 var2 form2...) is the simple variable assignment statement of Lisp. This is a short tutorial on printing in emacs lisp. Each of these two functions contain only one expression: a call to one Visual LISP symbol function. Signature (princ [expr [file-desc]]) expr. A string or AutoLISP expression. princ (AutoLISP) Prints an expression to the command line, or writes an expression to an open file . Any character supported by the character set can be enclosed within double quotes to make a string, except the double quote character (") and the escape character (\). It uses the (append) function to merge the new point list to ptlist. 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