Class: Langouste

Inherits:
Object
  • Object
show all
Defined in:
lib/langouste.rb

Constant Summary collapse

@@config_path = 
File.join(File.expand_path(File.dirname(__FILE__)), '../config/langouste.yaml')

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Langouste

Returns a new instance of Langouste.



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# File 'lib/langouste.rb', line 19

def initialize(options = {})
  options = {
    :from_lang  => :russian,
    :to_lang    => :english,
    :service    => :google,
    :config     => @@config_path
  }.merge options

  Langouste.config = YAML.load(File.open(options[:config]))

  @from_lang   = deabbreviate_language(options[:from_lang])
  @to_lang     = deabbreviate_language(options[:to_lang])
  @service     = deabbreviate_service(options[:service])
  @config      = Langouste.config[@service]
end

Instance Attribute Details

#config ⇒ Object

Returns the value of attribute config.



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# File 'lib/langouste.rb', line 7

def config
  @config
end

#from_lang ⇒ Object

Returns the value of attribute from_lang.



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# File 'lib/langouste.rb', line 7

def from_lang
  @from_lang
end

#service ⇒ Object

Returns the value of attribute service.



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# File 'lib/langouste.rb', line 7

def service
  @service
end

#to_lang ⇒ Object

Returns the value of attribute to_lang.



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# File 'lib/langouste.rb', line 7

def to_lang
  @to_lang
end

Class Method Details

.config ⇒ Object 



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# File 'lib/langouste.rb', line 11

def self.config
  @@config ||= YAML.load(File.open(@@config_path))
end

.config=(config) ⇒ Object 



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# File 'lib/langouste.rb', line 15

def self.config=(config)
  @@config = config
end

.list(config_path = nil) ⇒ Object 



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# File 'lib/langouste.rb', line 104

def self.list(config_path = nil)
  Langouste.config.keys.select{|k| k.is_a?(Symbol)}
end

Instance Method Details

#translate(input_text) ⇒ Object 



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# File 'lib/langouste.rb', line 35

def translate(input_text)

  output_text = ''

  begin
    input_form = config['input']['form']
  rescue
    raise "Bad service: '#{service}'"
  end

  # если у переводчика нет нужных языков - запрос не выполняется
  if input_form['to'] and input_form['from']
    return '' unless input_form['to']['languages'][to_lang] and input_form['from']['languages'][from_lang]
  elsif input_form['directions']
    return '' unless input_form['directions']['directions']["#{from_lang}-#{to_lang}".to_sym]
  else
    raise "Bad YAML-config for service: '#{service}'"
  end

  agent = Mechanize.new {|a| a.user_agent_alias = 'Linux Konqueror'}

  agent.get(config['url']) do |page|

    translated_page = page.form_with(input_form['selector']) do |form|

      text = form.field_with(input_form['text']['selector'])
      text.value = input_text

      if input_form['directions'] and input_form['directions']['field']['selector']

        value = input_form['directions']['directions']["#{from_lang}-#{to_lang}".to_sym]
        direction = form.field_with(input_form['directions']['field']['selector'])
        direction.option_with(:value => value).select

      else

        if input_form['from'] and input_form['from']['field'] and input_form['from']['field']['selector']

          value = input_form['from']['languages'][from_lang]
          from_lang = form.field_with(input_form['from']['field']['selector'])
          from_lang.option_with(:value => value).select

        end

        if input_form['to'] and input_form['to']['field'] and input_form['to']['field']['selector']

          value = input_form['to']['languages'][to_lang]
          to_lang = form.field_with(input_form['to']['field']['selector'])
          to_lang.option_with(:value => value).select

        end

      end

    end.submit

    output_text = if config['output']['xpath']
      xpath = config['output']['xpath']
      translated_page.search(xpath)
    else
      output_form = config['output']['form']
      translated_page.form_with(output_form['selector']).field_with(output_form['text']['selector']).value
    end

  end

  output_text.to_s
end