Class: Jekyll::Tags::LanguageTag

Inherits:
Liquid::Tag
  • Object
show all
Defined in:
lib/jekyll/tags/language.rb

Instance Method Summary collapse

Constructor Details

#initialize(tag_name, markup, tokens) ⇒ LanguageTag

Returns a new instance of LanguageTag.



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# File 'lib/jekyll/tags/language.rb', line 4

def initialize(tag_name, markup, tokens)
  super
  @markup = markup
end

Instance Method Details

#render(context) ⇒ Object

Raises:

  • (Liquid::SyntaxError) 


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# File 'lib/jekyll/tags/language.rb', line 9

def render(context)
  p = Liquid::Parser.new(@markup)
  name = Liquid::Expression.parse(exp = p.expression)
  key = context.evaluate(name)
  raise Liquid::SyntaxError.new("Invalid language key expression: #{exp}") if key.nil?

  # get language string from evaluated key
  str = JekyllLanguagePlugin::LiquidContext.get_language_string(context, key)

  if p.consume?(:colon)
    loop do
      arg = Liquid::Expression.parse(exp = p.expression)
      argstr = context.evaluate(arg)
      raise Liquid::SyntaxError.new("Invalid parameter expression: #{exp}") if argstr.nil?
      raise JekyllLanguagePlugin::PluginError.new("Language string is lacking parameter placeholder.") unless str.include?("%%")
      str.sub!("%%", argstr)
      break if !p.consume?(:comma)
    end
  end
  str
end