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Title : Exrex - Irregular Methods On Regular Expressions
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Exrex - Irregular Methods On Regular Expressions

Exrex is a command line tool too python module that generates all - or random - matching strings to a given regular aspect too more. It's pure python, without external dependencies.

There are regular expressions alongside interplanetary space matching strings (eg.: [a-z]+), inwards these cases exrex limits the maximum length of the interplanetary space parts.

Exrex uses generators, too then the retention usage does non depend on the break of matching strings.

Features

• Generating all matching strings
• Generating a random matching string
• Counting the break of matching strings
• Simplification of regular expressions

Installation
To install exrex, simply:

$ pip install exrex

or

$ easy_install exrex

Usage

as python module

>>> import exrex  >>> exrex.getone('(ex)r\\1') 'exrex'  >>> list(exrex.generate('((hai){2}|world!)')) ['haihai', 'world!']  >>> exrex.getone('\d{4}-\d{4}-\d{4}-[0-9]{4}') '3096-7886-2834-5671'  >>> exrex.getone('(1[0-2]|0[1-9])(:[0-5]\d){2} (A|P)M') '09:31:40 AM'  >>> exrex.count('[01]{0,9}') 1023  >>> impress '\n'.join(exrex.generate('This is (a (code|cake|test)|an (apple|elf|output))\.')) This is a code. This is a cake. This is a test. This is an apple. This is an elf. This is an output.  >>> impress exrex.simplify('(ab|ac|ad)') (a[bcd])

Command work usage

> exrex --help usage: exrex.py [-h] [-o FILE] [-l] [-d DELIMITER] [-v] REGEX  exrex - regular aspect string generator  positional arguments:   REGEX                 REGEX string  optional arguments:   -h, --help            present this assistance message too choke   -o FILE, --output FILE                         Output file - default is STDOUT   -l N, --limit northward       Max bound for arrive at size - default is twenty   -c, --count           Count matching strings   -m N, --max-number northward  Max break of strings - default is -1   -r, --random          Returns a random string that matches to the regex   -s, --simplify        Simplifies a regular aspect   -d DELIMITER, --delimiter DELIMITER                         Delimiter - default is \n   -v, --verbose         Verbose mode

Examples:

$ exrex '[asdfg]' a second d f g  $ exrex -r '(0[1-9]|1[012])-\d{2}' 09-85  $ exrex '[01]{10}' -c 1024 

Documentation
http://exrex.readthedocs.org/en/latest/

Fun/arts

• Boat: exrex '( {20}(\| *\\|-{22}|\|)|\.={50}| ( ){0,5}\\\.| {12} {39})'
• Eyes: exrex '(o|O|0)(_)(o|O|0)'

Similar projects
Tools that generate a listing of all possible strings that check a given pattern:

• regldg (features a alive demo on the website)
• regex-genex (supports using multiple regex patterns simultaneously)

Tools that generate random strings, i yesteryear one, that check a given pattern:

• randexp.js (features several alive demos on the website)
• rstr.xeger (a method of the rstr Python module)

Profiling

• python -m cProfile exrex.py '[a-zA-Z][a-zA-Z][a-zA-Z][a-zA-Z]' -o /dev/null
• python -m cProfile exrex.py '[0-9]{6}' -o /dev/null

Download Exrex

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