lisp interpreter

1. Symbols Definition SymbolsAre used for theirObjectIdentity to name varous entitiesInCommon LISP, Including (but not limited to) Linguistic entities suchAsVariablesAndFunctions. 2. built-in symbol Intern symbol --Interned SymbolIs uniquely identifiable by itsNameFrom anyPackageIn which it isAccessible. 3. Convert the string to symbol ;;; ; Description: the right side of the code => "..." indicates the output of each line of code. ;;; (SETF symbo

The main thing is to integrate the previous Lisp program into the current. NET menu to do so.Using Autodesk.AutoCAD.Windows;Using Autodesk.AutoCAD.Runtime;Using System.Windows.Forms;Using Autodesk.AutoCAD.DatabaseServices;Using Autodesk.AutoCAD.EditorInput;Using Autodesk.AutoCAD.ApplicationServices;Using System;Using System.Collections;Using app = Autodesk.AutoCAD.ApplicationServices.Application;Namespace test{[Commandmethod ("Test")]public void Test

Mozart-oz The mozart-oz language is a new generation of Computer languages jointly developed by Universit ät des Saarlandes, Swedish Institute of Computer Science, and Universit é catholique de Louvain.The language itself has the shadows of haskell, lisp, prolog, c, perl, java, and so on. It has almost all the features you want, such:Constrained programming features:In processing complex constraints, Languages provide search engines., We only need to

the period 2. Check syntax errors by code color Omitted 3. Use the syntax check function to check for syntax errors (1) Use the syntax detection function to detect possible syntactic errors 1. Parentheses or double quotation marks do not match. 2. The variable name assigned or the defined function name is incorrect. 3. The number of parameters for calling a function is different from the number of parameters required by the function. 4. the syntax of some special functions is i

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)) ((((

Second -- User-Defined Functions If you want to define your own function, you can use the "defun" function. The format of the defun function is: (defun A1 (A2) (A3 )). Where: A1 is the identifier of the function you want to define. It is usually a function name represented by a string; A2 is the list of parameters (one or more parameters) of the function to be defined. brackets are required; A3 is the expression used to calculate the defined function, that is, the function body. Parenth

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 is defined as follows: (Defien-syntax let

Emacs Debugging ConsiderationsEmacs Debugging has a pit, first El file will be compiled to ELC file, causing me to modify the source code is not effective, I also set a breakpoint, interrupt in the ELC file only to find the problem. Error debuggingError I think is the easiest to debug, because this kind of obvious error is easy to trace, the following are several ideas:-–debug-init Startup Parameters-Debug-on-error Slow ReflectionExecute the code First and press C-g when Emacs doesn't respond.(

Find square rootSuccessive averaging DUE to HERON of ALEXANDRIA* * to FIND a approximation to SQRT (X) * * Makr A GUESS G IMPROVE the GUESS by averaging G and x/g KEEP improving the GUESS untile IT is good enough Use 1 as an INITIAL GUESSAlgorithmic thinking(define (try guess x)(if (good-enough? guess x) guess (try (improve guess x) x)))(define (sqrt x) (try 1 x))Reference CodeNote: This code comes from 48974029(define (square x) (* x x)) //定义求平方 (define (average x y)

工欲善其事 its prerequisite, this article began to record the use of Lisp environment problems. Operating environment I have two recommended ways: 1, Lispbox 2. Sublime text + SBCL The first way to do this is to download a compressed package. The. bat file in the pressurized operation will open The second way to configure the sublime text of the compilation system needs to be configured 1, first to download SBCL and installation, installati

is compatible with Python2, and you can also use the command line to write interactive programs.IronPythonIronPython is implemented using the C # language, and can be used in the. NET and Mono platform interpreters. IronPython is Silverlight-compatible and can be executed directly in the browser with Gestalt. IronPython is also compatible with Python2.Tip:mono is provided. Open source framework for net-compatible tools.ClpythonClpython is an interpreter