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Class `Iri` helps you build a URI and then modify its
parts via a simple fluent interface:

```ruby
require 'iri'
url = Iri.new('http://google.com/')
  .add(q: 'books about OOP', limit: 50)
  .del(:q) # remove this query parameter
  .del('limit') # remove this one too
  .over(q: 'books about tennis', limit: 10) # replace these params
  .scheme('https') # replace 'http' with 'https'
  .host('localhost') # replace the host name
  .port('443') # replace the port
  .to_s # convert it to a string
```

Install it:

```bash
$ gem install iri
```

Or add this to your `Gemfile`:

```bash
gem 'iri'
```

Pay attention, it is not a parser. The only functionality this gem provides
is _building_ URIs. It is very convenient to use inside
[HAML](http://haml.info/tutorial.html), for example:

```haml
- iri = Iri.new(request.url)
%a{href: iri.over(offset: offset + 10)} Next Page
%a{href: iri.over(offset: offset - 10)} Previous Page
```

That's it.

## How to contribute

Read [these guidelines](https://www.yegor256.com/2014/04/15/github-guidelines.html).
Make sure you build is green before you contribute
your pull request. You will need to have [Ruby](https://www.ruby-lang.org/en/) 2.3+ and
[Bundler](https://bundler.io/) installed. Then:

```
$ bundle update
$ bundle exec rake
```

If it's clean and you don't see any error messages, submit your pull request.