如何在Common Lisp中进行模式匹配 [英] How to do Pattern Matching in Common Lisp

问题描述

我不知道Common Lisp是否存在模式匹配功能，但是我必须自己做一个功能.我对Lisp一无所知.有人可以单调学习Lisp吗?最重要的是，如何在Lisp中进行模式匹配.我将不得不传递一个模式和一个事实，然后说出它们是否匹配. 一个例子是

I have no idea if there exists a pattern matching function for Common Lisp, nevertheless I have to make my own function. I have no idea about Lisp. Can somebody give heads-up on learning Lisp and most importantly, how to go about doing pattern matching in Lisp. I will have to pass a pattern and a fact and say if they match. An example would be

(heroes (hitpoints=hp) (mana=m)) 

应该匹配

(Morphling (hitpoints 435) (mana 260))

它还应该能够对数字是大还是小进行数字比较.就像其他英雄的法力值不如变身那样.

it should also be able to also do numeric comparisons of if a number is greater or lesser. Like if another heroes mana is less that Morphling.

推荐答案

各种Lisp书籍中都介绍了简单的模式匹配功能.

Simple pattern matching functionality is explained in various Lisp books.

• Lisp，第3版，温斯顿/霍恩

人工智能编程范例，Common Lisp案例研究，Peter Norvig

和其他人.

以上书籍很好地解释了如何在Lisp中实现模式匹配.

Above books explain implementing pattern matching in Lisp very well.

存在图书馆，例如 trivia ，

Libraries exist, for example trivia, cl-match, and various others.

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