pezra/hal-interpretation — pull request #2 by pezra (2014-04-15 17:24:08+00:00)
Title: Allow arbitrary value extraction code to specified

Adds a `:with` option to the `#exrtract` method whose value is a proc that performs the extraction.

```ruby
extract "parent", from: "/_links/up", with: ->(hal_repr){hal_repr.related_hrefs("up").first}
```