GoRella

Monkey patch regular expression methods to built-in string types

Introduction

This project is aiming at easing the use of regular expression, which is inspired by RegExp in JavaScript. The name comes from "gorilla" and "re". The sing-file module will monkey patch the following built-in methods of string types on its import:

• replace
• split and rsplit
• find and rfind
• index and rindex
• partition and rpartition
• count
• startswith and endswith

Besides, it extends the built-in string types with following methods of re module:

• match
• search
• findall
• finditer

Installation

$ pip install gorella

Usage

All you need is to import gorella in one line, everything is done for you:

>>> import gorella
>>> 'I am 26 years old.'.search('\d+').group()
'26'

For built-in methods, when pass a regular expression object, it will call the corresponding re function, else it falls back to built-in one:

>>> pat = re.compile('\d+')
>>> 'I am 26 years old.'.find('am')
2
>>> 'I am 26 years old.'.find(pat)
5
>>> 'I am 26 years old.'.partition(pat)
('I am ', '26', ' years old')

Because it replaces the pure-C methods with python ones, the performance may be affected.

Python 3 support

The monkey patching highly depends on the C-API of CPython, so it doesn't support other implementations than CPython. The test passes on Python 2.6, 2.7, 3.3, 3.4 and 3.5

License

MIT