Enrichments (e9s) module for localized pluralization
Rich-pluralization is a module of E9s (http://github.com/archan937/e9s) which provides localized pluralization in combination with i18n. Doing this enables you to only translate words in singular form as the module pluralizes the translation for you.
As as example, in the Dutch locale you can do the following:
>> "Appendix".pl => "Appendices"
Dutch pluralization rules are provided along with Rich-pluralization and has a 86% test coverage out of 54977 words which are provided by INL. Unfortunately we can’t distribute the complete list of nouns due to the closed nature of the database.
Rich-pluralization preserves the casing in the pluralized result:
>> "huis".pl => "huizen" >> "Huis".pl => "Huizen" >> "HUIS".pl => "HUIZEN"
Using Rich-pluralization as gem
Install the Rich-pluralization gem:
sudo gem install rich_pluralization
Add rich_pluralization in
environment.rb as a gem dependency:
Using Rich-pluralization as plugin
Install the Rich-pluralization plugin:
./script/plugin install git://github.com/archan937/rich_pluralization.git
Install i18n if you haven’t already:
sudo gem install i18n
Testing Rich-pluralization out-of-the-box
Set the default locale to
config.i18n.default_locale = :nl
Run the Rails console:
Start pluralizing in Dutch:
>> "Academicus".pl => "Academici"
Just call the
pl method on string or symbols to pluralize.
>> "brief".pl => "brieven" >> "gebruiker".pl => "gebruikers" >> :museum.pl => "musea" >> "afspraak".pl => "afspraken"
Rich-pluralization has enriched the String class with several inflection methods such as
pluralize!. Please visit http://github.com/archan937/rich_pluralization/blob/master/lib/rich/pluralization/core/string/inflections.rb to see all the methods.
Adding pluralization rules / inflections
Rich-pluralization inflections resembles the inflections of
ActiveSupport::Inflector. Unfortunately, specifying inflections within
config/initializers/inflections.rb influences your Rails application and thus causes great problems.
To specify pluralization rules for different locales. You have to use regular expressions and put them in
Note: specified in
--- nl: e9s: singular: - rule: en$ replacement: "" plural: - rule: ee$ replacement: eeën - rule: heid$ replacement: heden - rule: (c|m|n|t)us$ replacement: \1i - rule: | abc, acme, acne, (a|ë|i|o|u|y)$ replacement: \1's exceptions: (ai|eau|ei|li|lieu|ooi|ou|shampoo|spray|vlo)$ - rule: (blad|kind)$ replacement: \1eren exceptions: (aanrecht|advertentie)blad - rule: (e|em|el|er|erd|aar|aard|um|eur|foon|oor|ier|en|ie|eau|show|festival|é)$ replacement: \1s - rule: | (a|e|o|u)\1([^aeiou])$ replacement: \1\2en - rule: | (aï|alia)(s), ([^aeiou][aeiou])([^aeiou])$ replacement: \1\2\2en exceptions: dal, pad, slot, vat, weg, (blad|dag|dak|engel|gat|weg)$ - rule: f$ replacement: ven - rule: s$ replacement: zen - rule: $ replacement: en irregular: gelid: gelederen uncountable: - geld - informatie - rijst
For a complete example, please open http://github.com/archan937/rich_pluralization/blob/master/locales/nl.yml which contains Dutch inflections.
Note: The Dutch pluralization are tested on 54977 words provided by INL. The test coverage is 86% (46366 words passed).
For support, remarks and requests please mail me at firstname.lastname@example.org.
This Rails gem / plugin depends on:
- Complete the Dutch and Spanish inflections
- Most String inflection methods are also defined in rich_i18n (keep it DRY)
- Check whether to make Rich-pluralization compatible with Rails 3
Copyright © 2010 Paul Engel, released under the MIT license
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