= RelatonItu: retrieve ITU Standards for bibliographic use using the BibliographicItem model

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RelatonItu is a Ruby gem that implements the https://github.com/metanorma/metanorma-model-iso#iso-bibliographic-item[IsoBibliographicItem model].

== Installation

Add this line to your application's Gemfile:

[source,ruby]
----
gem 'relaton-bib'
----

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install relaton-bib

== Usage

=== Search for a standard using keywords

[source,ruby]
----
require 'relaton_itu'
=> true

hit_collection = RelatonItu::ItuBibliography.search("ITU-T L.163")
=> <RelatonItu::HitCollection:0x007fbf5fb4ab60 @ref=ITU-T L.163 @fetched=false>

item = hit_collection[1].fetch
=> #<RelatonItu::ItuBibliographicItem:0x007fbf1fc89548
 ...
----

=== XML serialization
[source,ruby]
----
item.to_xml
=> "<bibitem id="ITU-TLSuppl.39" type="standard" schema-version="v1.2.1">
      <fetched>2022-12-05</fetched>
      <title type="title-intro" format="text/plain" language="en" script="Latn">ITU-T L.1470</title>
      ...
    </bibitem>"
----
With `bibdata: true` option XML output is wrapped with `bibdata` element and `ext` element added.
[source,ruby]
----
item.to_xml bibdata: true
=> "<bibdata type="standard" schema-version="v1.2.1">
      <fetched>2022-12-05</fetched>
      <title type="title-intro" format="text/plain" language="en" script="Latn">ITU-T L.1470</title>
      ...
      <ext schema-version="v1.0.0">
        <doctype>recommendation</doctype>
        ...
      </ext>
    </bibdata>"
----

=== Get code, and year
[source,ruby]
----
RelatonItu::ItuBibliography.get("ITU-T L.163", "2018", {})
[relaton-itu] ("ITU-T L.163") fetching...
[relaton-itu] ("ITU-T L.163") found ITU-T L.163
=> #<RelatonItu::ItuBibliographicItem:0x007fbf5f94b9b8
...
----

=== Get amendment
[source,ruby]
----
RelatonItu::ItuBibliography.get "ITU-T G.989.2/Amd 1"
[relaton-itu] ("ITU-T G.989.2/Amd 1") fetching...
[relaton-itu] ("ITU-T G.989.2/Amd 1") found ITU-T G.989.2/Amd 1
=> #<RelatonItu::ItuBibliographicItem:0x007fe5409e5840
...
----

=== Get ITU-R documents

[source,ruby]
----
RelatonItu::ItuBibliography.get "ITU-R BO.600-1"
[relaton-itu] ("ITU-R BO.600-1") fetching...
[relaton-itu] ("ITU-R BO.600-1") found ITU-R BO.600-1
=> #<RelatonItu::ItuBibliographicItem:0x00007fb0cf8a1308
...
----

=== Get ITU-R Radio Regulations (RR)

[source,ruby]
----
RelatonItu::ItuBibliography.get 'ITU-R RR (2020)'
[relaton-itu] ("ITU-R RR") fetching...
[relaton-itu] WARNING: invalid doctype: publication
[relaton-itu] ("ITU-R RR") found ITU-R RR
=> #<RelatonItu::ItuBibliographicItem:0x007fb4b55eb660
...
----

=== Typed links

Each ITU document has `src` type link and optional `obp` and `word`  link types.

[source,ruby]
----
item.link
=> [#<RelatonBib::TypedUri:0x00007f82d665f530 @content=#<Addressable::URI:0xc170 URI:https://www.itu.int/ITU-T/recommendations/rec.aspx?rec=13786&lang=en>, @type="src">,
 #<RelatonBib::TypedUri:0x00007f82d665f0f8 @content=#<Addressable::URI:0xc184 URI:https://www.itu.inthttp//handle.itu.int/11.1002/1000/13786-en?locatt=format:pdf&auth>, @type="obp">]
----

=== Create bibliographic item from YAML
[source,ruby]
----
hash = YAML.load_file 'spec/examples/itu_bib_item.yml'
=> {"id"=>"ITU-T L.163 (11/2018)",
...

RelatonItu::ItuBibliographicItem.from_hash hash
=> #<RelatonItu::ItuBibliographicItem:0x007fd88ac02aa0
...
----

== Development

After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).

== Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/metanorma/relaton-bib.

== License

The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).