pyparsing can be found in the trunk from revision 684 onwards.

pyparsing providers a simple way of creating parsers for logical text patterns.

A simple tutorial for pyparsing could be found at : ​http://www.rexx.com/~dkuhlman/python_201/python_201.html#SECTION007600000000000000000

Documentation for pyparsing is located at : ​http://crpppc19.epfl.ch/doc/python-pyparsing/HowToUsePyparsing.html

Example usage is shown below.

from pyparsing import delimitedList,Word,alphanums,ParseException,Group                             
from pyparsing import Suppress,nums                                                                 
                                                                                                    
resource = delimitedList(Word(alphanums+"_"),'/')                                                   
                                                                                                    
phone = Word(nums) # doesnot accept country code yet                                                
                                                                                                    
address = (Suppress("eden.")+resource) | phone | Word(alphanums+"_ . + @ ")                         
                                                                                                    
addresses = delimitedList(Group(address))                                                           
                                                                                                    
string = "eden.pr_person/1/asd,eden.la/1/1,9935648569"   
add = addresses.parseString(string)                               
print add
                                  
------------
==> Result 

[['pr_person', '1', 'asd'], ['la', '1', '1'], ['9935648569']]