LEPL是一个用 Python 开发的向下递归解析器。It is based on parser combinator libraries popular in functional programming, but also exploits Python language features. Operators provide a friendly syntax, and the consistent use of generators supports full backtracking and resource management. Backtracking implies that a wide variety of grammars are supported; appropriate memoisation ensures that even left-recursive grammars terminate.
项目主页：http://www.acooke.org/lepl/
下载地址：http://www.acooke.org/lepl/download.html
来自:开源中国社区
