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jager v0.4.1
jager
I would recommend re-implementing this if you plan on using it for anything yourself. The approach in this library is a poorly-informed implementation based on parser actions.
If anyone is curious on how something like this would be implemented correctly I would recommend reading Russ Cox's series of posts, and convert a regular expression into a proper DFA as described here. Then this library reduces to traversing the DFA randomly until reaching an accept state.
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:]]
)
- anchors (
Contributing
- Fork it ( https://github.com/omarroth/jager/fork )
- Create your feature branch (git checkout -b my-new-feature)
- Commit your changes (git commit -am 'Add some feature')
- Push to the branch (git push origin my-new-feature)
- Create a new Pull Request
Contributors
- omarroth Omar Roth - creator, maintainer
Repository
jager
Owner
Statistic
- 16
- 0
- 0
- 0
- 1
- almost 4 years ago
- June 9, 2018
License
GNU General Public License v3.0
Links
Synced at
Sun, 24 Nov 2024 11:31:55 GMT
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