jager

Reverse regular expression engine
0.5.0 Latest release released

jager

GitHub release

This is a project built with marpa.

Given a regular expression, generate a string that matches that expression

Installation

Add this to your application's shard.yml:

dependencies:
  jager:
    github: omarroth/jager

Usage

require "jager"

regex = /\d{3}-\d{3}-\d{4}/
engine = Jager::Engine.new

input = engine.generate(regex)

input # => "754-327-6740"

Examples

| Name | Regex | Output | | ----------- | -------------------------------------------------------------- | -------------------------------------- | | US Phone | /\d{3}-\d{3}-\d{4}/ | "019-586-1821" | | UUID | /[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}/ | "0d007d29-f50b-4763-f40e-102fcaa77a1b" | | JSON Number | /-?[1-9]\d+(.\d+)?([eE][+-]?\d+)?/ | "85.2292e+6745508109" | | US Dollar | /\$([1-9]{1}[0-9]{0,2})(,\d{3}){0,4}(.\d{2})?/ | "$7,239,557,686.39" |

Notes

  • Jager does not support:
    • anchors ($, ^),
    • extended character classes ([[:digit:]], [[:alpha:]])

Contributing

  1. Fork it ( https://github.com/omarroth/jager/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

Contributors

  • omarroth Omar Roth - creator, maintainer
jager:
  github: omarroth/jager
  version: ~> 0.5.0
License GPLv3
Crystal 0.27.2

Authors

Dependencies 1

  • marpa master
    {'branch' => 'master', 'github' => 'omarroth/marpa'}

Development Dependencies 0

Dependents 0

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