Mixing Different Parameter Types Mixing Different Parameter Types It’s possible, but rare, to use all four flavors of parameters in a single function. Whenever more than one fl...

Distinguish Business Exceptions from Technical Distinguish Business Exceptions from Technical There are basically two reasons that things go wrong at runtime: technical problem...

Listing a Directory（列目录） Listing a Directory（列目录） You can implement the function for listing a single directory, list-directory , as a thin wrapper around the standard function...

参考文献 参考文献 SGI Indy—-Higher Intellect Vintage Computer Wiki ActionScript Virtual Machine 2 (AVM2) Overview Making JavaScript Safe for Advertising Macromedia Flash MX—-A next...

Providing Multiple Restarts Providing Multiple Restarts Since restarts must be explicitly invoked to have any effect, you can define multiple restarts, each providing a differe...

Lexical Variables and Closures Lexical Variables and Closures By default all binding forms in Common Lisp introduce lexically scoped variables. Lexically scoped variables can b...

读取表达式 读取表达式 首先我们会读取整个程序，并构造一个 lval* 来表示它，然后我们对这个 lval* 进行遍历求值来得到程序的运行结果。第一阶段负责把抽象语法树(abstract syntax tree)转换为一个 S-表达式，第二阶段则根据我们已由的 Lisp 规则对 S-表达式进行遍历求值。 为了完成第一步，我们可以递归的查看语法分...

Chapter 2 习题 (Exercises) Chapter 2 习题 (Exercises) 描述下列表达式求值之后的结果： ( a ) (+ (- 5 1 ) (+ 3 7 )) ( b ) ( list 1 (+ 2 3 )) ( c ) ( if ( listp ...

project setup project.clj desktop_launcher.clj core.clj play-clj Links Clojure is a dialect of Lisp, written for the JVM and with functional programming in mind. Clojure com...

What is a Programming Language? What is a Programming Language? A programming language is very similar to a real language. There is a structure behind it, and some rules which...