SOURCE CODE: Uize.Build.PluralsModules (view docs)

/*______________
|       ______  |   U I Z E    J A V A S C R I P T    F R A M E W O R K
|     /      /  |   ---------------------------------------------------
|    /    O /   |    MODULE : Uize.Build.PluralsModules Package
|   /    / /    |
|  /    / /  /| |    ONLINE : http://www.uize.com
| /____/ /__/_| | COPYRIGHT : (c)2014-2016 UIZE
|          /___ |   LICENSE : Available under MIT License or GNU General Public License
|_______________|             http://www.uize.com/license.html
*/

/* Module Meta Data
  type: Package
  importance: 3
  codeCompleteness: 100
  docCompleteness: 4
*/

/*?
  Introduction
    The =Uize.Build.PluralsModules= build script builds plural rules modules for various languages, as defined by the [[http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html][CLDR plural rules]].

    *DEVELOPERS:* `Chris van Rensburg`

    EXAMPLE
    ..........................................................................................
    node build.js Uize.Build.PluralsModules pluralRules=../cldr/json/supplemental/plurals.json
    ..........................................................................................
*/

Uize.module ({
  name:'Uize.Build.PluralsModules',
  required:[
    'Uize.Services.FileSystem',
    'Uize.Json',
    'Uize.Loc.Plurals.RuleParser',
    'Uize.Build.Templates.Module.Plurals.ModuleTemplate',
    'Uize.Build.Templates.Module.Plurals.ClassesInfo'
  ],
  builder:function () {
    'use strict';

    return Uize.package ({
      perform:function (_params) {
        var
          _fileSystem = Uize.Services.FileSystem.singleton (),
          _modulesPath = _params.uizePath + '/' + _params.modulesFolder + '/',
          _modulesNamespace = 'Uize.Loc.Plurals',
          _langsModulesNamespace = _modulesNamespace + '.Langs',
          _pluralRules = Uize.Json.from (_fileSystem.readFile ({path:_params.pluralRules})),
          _pluralRulesMapsByLanguage = Uize.map (
            _pluralRules.supplemental ['plurals-type-cardinal'],
            function (_languagePlurals,_language) {
              var _pluralRulesMap = {};
              Uize.forEach (
                _languagePlurals,
                function (_pluralRule,_pluralRuleName) {
                  _pluralRulesMap [_pluralRuleName.replace (/^pluralRule-count-/,'')] = _pluralRule;
                }
              );
              return _pluralRulesMap;
            }
          )
        ;

        /*** generate the plurals classes info module ***/
          var _classesInfoModuleName = _modulesNamespace + '.ClassesInfo';
          _fileSystem.writeFile ({
            path:_modulesPath + Uize.modulePathResolver (_classesInfoModuleName) + '.js',
            contents:Uize.Build.Templates.Module.Plurals.ClassesInfo.process ({
              name:_classesInfoModuleName,
              classesByLanguage:Uize.map (_pluralRulesMapsByLanguage,'Uize.keys (value)')
            })
          });

        /*** generate the per language plurals modules under Uize.Loc.Plurals.Langs ***/
          Uize.forEach (
            _pluralRulesMapsByLanguage,
            function (_pluralRulesMap,_language) {
              _fileSystem.writeFile ({
                path:_modulesPath + Uize.modulePathResolver (_langsModulesNamespace + '.' + _language) + '.js',
                contents:Uize.Build.Templates.Module.Plurals.ModuleTemplate.process ({
                  namespace:_langsModulesNamespace,
                  language:_language,
                  pluralRules:_pluralRulesMap,
                  pluralRulesFunction:Uize.Loc.Plurals.RuleParser.rulesToJsFunctionStr (_pluralRulesMap)
                })
              });
            }
          );
      }
    });
  }
});