Haye.cr

Based on the javascript version.

Haye is a simple super fast string expression parser. In support pipe and qs string expressions ( explained below ).

Pipe expression

The pipe based expression is very popular in Laravel community, due to their Validation engine, and same is adopted by Indicative.

Syntax example:

required|email|max:4|range:10,30

1. Each item is separated by |
2. The values are defined after :
3. Multiple values are separated by ,.
4. White spaces in keys are trimmed.

Installation

1. Add the dependency to your shard.yml:

dependencies:
  haye.cr:
    github: krthr/haye.cr

2. Run shards install

Usage

require "haye.cr"

Pipe -> Array

expression = 'required|email:unique,users'
parsed = Haye.fromPipe(expression) # Haye.fromPipe(expression, Haye::PresenterTypes::Array)

Output (Haye::Presenters::Node[])

[
  #<Haye::Presenters::Node:0x7f11fd891e40 
    @name="required", 
    @args=[]
  >, 
  #<Haye::Presenters::Node:0x7f11fd891de0 
    @name="email", 
    @args=["unique", "users"]
  >
]

Pipe -> Hash

expression = 'required|email:unique,users'
parsed = Haye.fromPipe(expression, Haye::PresenterTypes::Hash)

Output (Hash)

{
  "required" => [], 
  "email" => ["unique", "users"]
}

Contributing

1. Fork it (https://github.com/krthr/haye.cr/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

• krthr - creator and maintainer