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79 lines
2.4 KiB
Ruby
79 lines
2.4 KiB
Ruby
#alphab_for allows to loop in an array sorted by the translated value of
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#each key using appropriate collation for the current language. In short,
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#this is used to generate translated table of contents.
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#Example:
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#{% alphab_for v in page.voc %}
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# ..
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#{% endalphab_for %}
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require 'yaml'
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require 'ffi-icu'
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module Jekyll
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module AlphabForImpl
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def render(context)
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#load translations files
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site = context.registers[:site].config
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if !site.has_key?("loc")
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site['loc'] = {}
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site['langs'].each do |key,value|
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site['loc'][key] = YAML.load_file('_translations/'+key+'.yml')[key]
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end
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end
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#load collection and context variables
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sorted_collection = collection_to_sort context
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return if sorted_collection.empty?
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lang = Liquid::Template.parse('{{page.lang}}').render context
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page = Liquid::Template.parse('{{page.id}}').render context
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#build translated array and associative hash
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translated = []
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assoc = {}
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for key in sorted_collection do
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next if !site['loc'][lang].has_key?(page) || !site['loc'][lang][page].has_key?(key) || site['loc'][lang][page][key].nil? || site['loc'][lang][page][key] == ' '
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t = site['loc'][lang][page][key]
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translated.push(t)
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assoc[key] = t
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end
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#sort translated array using appropriate collation
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translated = ICU::Collation.collate(lang, translated)
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#recreate collection with new ordering
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sorted_collection = []
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for va in translated do
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val = assoc.select{|k,v| v == va}
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#compatibility with old ruby versions that return an Array
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if val.is_a?(Array)
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val = { val[0][0] => va }
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end
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val = val.keys[0]
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sorted_collection.push(val)
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end
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#return modified array
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original_name = @collection_name
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result = nil
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context.stack do
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sorted_collection_name = "#{@collection_name}_sorted".sub('.', '_')
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context[sorted_collection_name] = sorted_collection
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@collection_name = sorted_collection_name
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result = super
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@collection_name = original_name
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end
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result
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end
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end
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class AlphabForTag < Liquid::For
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include AlphabForImpl
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def collection_to_sort(context)
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return context[@collection_name].dup
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end
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def end_tag
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'endalphab_for'
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end
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end
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end
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Liquid::Template.register_tag('alphab_for', Jekyll::AlphabForTag)
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