软件包: python-pyparsing-doc (2.2.0+dfsg1-2)

alternative to creating and executing simple grammars - doc

The parsing module is an alternative approach to creating and executing simple grammars, vs. the traditional lex/yacc approach, or the use of regular expressions. The parsing module provides a library of classes that client code uses to construct the grammar directly in Python code.

Here's an example:

 from pyparsing import Word, alphas
 greet = Word(alphas) + "," + Word(alphas) + "!"
 hello = "Hello, World!"
 print hello, "->", greet.parseString(hello)

This package contains documentation for python-pyparsing.