genrex 1.0.1

Genrex generates matching strings to a given regular expressions.

Genrex

Genrex generates matching strings to a given regular expressions.

Usecases

• generate test data
• calculate the cardinality of a regular expression.

Quickstart

Requirements

• Pyhton 3.x

Install

pip install genrex

First Steps

import genrex

emails = genrex.parse(r'(John|Jane)\.(Doe|Smith)@(gmail|outlook|protonmail)\.com')

print('random email address: ', emails.random())
print('first email address: ', emails[0])
print('number of email addresses: ', len(emails))

print('')
[print(email) for email in emails] #print all emails

Output:

random email address:  [e-mail]
first email address:  [e-mail]
number of email addresses:  12

[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]

Features

Supported Regular Expression Syntax

• .
• *
• +
• ?
• {m}
• {m,n}
• | - Branch
• [...] - Set
• (...) - Group
• \d, \s, ... - Categories

TODO

• support re flags (e.g. re.ASCII)

Alternatives

Package	License
exrex	AGPL-3.0
rstr	BSD