scsmith/language_list

A list of languages based upon ISO-639-1 and ISO-639-3 with functions to retrieve only common languages.

language_list's Issues

Searching by common name doesn't work

For example, LanguageList::LanguageInfo.find('greek') returns nil because "Greek" is the common name and isn't included in the BY_NAME hash.

FYI: TwitterCLDR

I just noticed that the pretty cool TwitterCLDR gem has some similar functionality to language_list, possibly includes everything language_list does plus a lot more?

(Including a lot of unicode localization stuff unrelated to language lists, but also even more language code standards, and knowledge of language names in multiple languages, like "espanol" etc. )

https://github.com/twitter/twitter-cldr-rb

Common in which context?

Which context do you assume that these languages are common in? is it comparative on the global scale, or is it per country or per region per country?

un-doc'd changes between 1.1.0 and 1.2.0

In 1.1.0, you can do LanguageList::LanguageInfo.find(nil), and get nil back. In 1.2.0, you get

NoMethodError: undefined method `downcase!' for nil:NilClass
	from /Users/jrochkind/.gem/ruby/2.4.0/gems/language_list-1.2.0/lib/language_list.rb:65:in `find'

Probably related, it's also mutating the argument passed in.

str = "German"
LanguageList::LanguageInfo.find(str)
str # is now "german" not "German"

I don't want it mutating the arguments passed in, that's a bad practice.

Both of these things caused my build to fail upgrading from 1.1.0 to 1.2.0

Issues generating a select languages list

Thanks very much for assembling the list of languages.

We needed a select tag of common languages, but with English and Spanish shown first. We also wanted to list both Mandarin and Cantonese, and remove the parentheticals. We used iso_639_3 to get a code for Cantonese. Others may find this useful:

# app/application_helper.rb

  def our_languages
    # Fix names, add Cantonese, and bring English and Spanish to the front
    LanguageList::COMMON_LANGUAGES.map do |language|
      [language.name.gsub('Modern Greek (1453-)', 'Greek')
        .gsub('Tonga (Tonga Islands)', 'Tongan')
        .gsub('Chinese', 'Chinese Mandarin'),
       language.iso_639_3]
    end.push(['Chinese Cantonese', 'yue']).sort.promote(%w(Spanish spa))
      .promote(%w(English eng))
  end

  class ActionView::Helpers::FormBuilder
    # http://stackoverflow.com/a/2625727/1935918
    include ApplicationHelper
    include ActionView::Helpers::FormTagHelper
    include ActionView::Helpers::FormOptionsHelper

    def language_select(name, options = { include_blank: true })
      select_tag "#{@object_name}[#{name}]",
                 options_for_select(our_languages,
                                    selected: @object.send(name)), options
    end

  class Array
    def promote(promoted_element)
      return self unless (found_index = find_index(promoted_element))
      unshift(delete_at(found_index))
    end
  end

Order by name alphabetic

Is there any way to sort the list by name, rather than code?

Moldovan is not recognized

The Moldovan language (MO) is not recognized:

LanguageList::LanguageInfo.find('mo')
=> nil