TreeTop 树上上树-- PEG parser generator

http://dataconstellation.com/blog/older/2008/2/1/presentation_on_treetop/

展示 代码， mp3及pdf
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cool

cool酷，哭

http://github.com/larrytheliquid/cry/tree/master



Cry提供简单的面向对象方式创建解析树

Cry is a Ruby library that provides a nice object oriented way to create, transfer, and manipulate frozen parse trees.

The idea behind the name is that you end up writing in parse tree format, in a syntax more verbose than CLOS… hence “Cry” =) In reality Cry would mainly be used in meta-programming though, and is designed to have a simple & consistent api.

http://matthewkwilliams.com/index.php/2008/09/05/a-gruesome-look-at-statemachine-and-treetop/

解释treetop

使用的魔域 (Zork) 是電子遊戲歷史上第一個文字冒險遊戲的人物和情景探险