Class: Tr8n::Tokens::Transform

Inherits:
Data
  • Object
show all
Defined in:
lib/tr8n/tokens/transform.rb

Overview

Transform Token Form

|| one: message, many: messages || one: сообщение, few: сообщения, many: сообщений, other: много сообщений in other case the number is not displayed#

| message - will not include count, resulting in “messages” with implied count | message, messages

| message, messages

| he, she, he/she

| male: he, female: she, other: he/she

| did, does, will do | all male, all female, mixed genders

|| message, messages - will include count: “5 messages”

Instance Attribute Summary collapse

Attributes inherited from Data

#case_keys, #context_keys, #full_name, #label, #short_name

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Data

#apply_case, #apply_language_cases, #context_for_language, #error, #initialize, #key, #language_cases_enabled?, #name, #name_for_case_keys, parse, #sanitize, #sanitized_name, #to_s, token_object, #token_value, #token_value_from_array_param, #token_value_from_hash_param, #token_values_from_array

Constructor Details

This class inherits a constructor from Tr8n::Tokens::Data

Instance Attribute Details

#pipe_separator ⇒ Object (readonly)

Returns the value of attribute pipe_separator.



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# File 'lib/tr8n/tokens/transform.rb', line 57

def pipe_separator
  @pipe_separator
end

#piped_params ⇒ Object (readonly)

Returns the value of attribute piped_params.



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# File 'lib/tr8n/tokens/transform.rb', line 57

def piped_params
  @piped_params
end

Class Method Details

.expression ⇒ Object 



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# File 'lib/tr8n/tokens/transform.rb', line 59

def self.expression
  /(\{[^_:|][\w]*(:[\w]+)*(::[\w]+)*\s*\|\|?[^{^}]+\})/
end

Instance Method Details

#displayed_in_translation? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tr8n/tokens/transform.rb', line 76

def displayed_in_translation?
  pipe_separator == "||"
end

#generate_value_map(params, context) ⇒ Object

token: one: message, many: messages results in: “message”, “many”: “messages”

token: message transform: [“{$0”, “other”: “Tr8n::Tokens::Transform.$0$0::plural”}, “{$0”, “other”: “$1”}] results in: “message”, “other”: “messages”

token: message, messages transform: [“{$0”, “other”: “Tr8n::Tokens::Transform.$0$0::plural”}, “{$0”, “other”: “$1”}] results in: “message”, “other”: “messages”

token: Dorogoi, Dorogaya transform: [“unsupported”, “{$0”, “female”: “$1”, “other”: “$0/$1”}] results in: “Dorogoi”, “female”: “Dorogaya”, “other”: “Dorogoi/Dorogaya”

token: likes, like transform: [“unsupported”, “{$0”, “other”: “$1”}] results in: “likes”, “other”: “like”



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# File 'lib/tr8n/tokens/transform.rb', line 109

def generate_value_map(params, context)
  values = {}

  if params.first.index(':')
    params.each do |p|
      nv = p.split(':')
      values[nv.first.strip] = nv.last.strip
    end
    return values
  end

  unless context.token_mapping
    error("The token context #{context.keyword} does not support transformation for unnamed params: #{full_name}")
    return nil
  end

  token_mapping = context.token_mapping

  # "unsupported"
  if token_mapping.is_a?(String)
    error("The token mapping #{token_mapping} does not support #{params.size} params: #{full_name}")
    return nil
  end

  # ["unsupported", "unsupported", {}]
  if token_mapping.is_a?(Array)
    if params.size > token_mapping.size
      error("The token mapping #{token_mapping} does not support #{params.size} params: #{full_name}")
      return nil
    end
    token_mapping = token_mapping[params.size-1]
    if token_mapping.is_a?(String)
      error("The token mapping #{token_mapping} does not support #{params.size} params: #{full_name}")
      return nil
    end
  end

  # {}
  token_mapping.each do |key, value|
    values[key] = value
    value.scan(/({\$\d(::\w+)*})/).each do |matches|
      token = matches.first
      parts = token[1..-2].split('::')
      index = parts.first.gsub('$', '').to_i

      if params.size < index
        error("The index inside #{context.token_mapping} is out of bound: #{full_name}")
        return nil
      end

      # apply settings cases
      value = params[index]
      if language_cases_enabled?
        parts[1..-1].each do |case_key|
          lcase = context.language.case_by_keyword(case_key)
          unless lcase
            error("Language case #{case_key} for context #{context.keyword} is not defined: #{full_name}")
            return nil
          end
          value = lcase.apply(value)
        end
      end
      values[key] = values[key].gsub(token, value)
    end
  end

  values
end

#implied? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tr8n/tokens/transform.rb', line 80

def implied?
  not displayed_in_translation?
end

#parse_elements ⇒ Object 



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# File 'lib/tr8n/tokens/transform.rb', line 63

def parse_elements
  name_without_parens = @full_name[1..-2]
  name_without_pipes = name_without_parens.split('|').first.strip
  name_without_case_keys = name_without_pipes.split('::').first.strip

  @short_name = name_without_pipes.split(':').first.strip
  @case_keys = name_without_pipes.scan(/(::\w+)/).flatten.uniq.collect{|c| c.gsub('::', '')}
  @context_keys = name_without_case_keys.scan(/(:\w+)/).flatten.uniq.collect{|c| c.gsub(':', '')}

  @pipe_separator = (full_name.index("||") ? "||" : "|")
  @piped_params = name_without_parens.split(pipe_separator).last.split(",").collect{|param| param.strip}
end

#prepare_label_for_suggestion(label, index, language) ⇒ Object 



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# File 'lib/tr8n/tokens/transform.rb', line 84

def prepare_label_for_suggestion(label, index, language)
  context = context_for_language(language)
  values = generate_value_map(piped_params, context)

  label.gsub(full_name, values[context.default_rule] || values.values.first)
end

#substitute(label, context, language, options = {}) ⇒ Object 



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# File 'lib/tr8n/tokens/transform.rb', line 178

def substitute(label, context, language, options = {})
  object = self.class.token_object(context, key)

  unless object
    return error("Missing value for a token \"#{key}\" in \"#{label}\"", false)
  end

  if piped_params.empty?
    return error("Piped params may not be empty for token \"#{key}\" in \"#{label}\"", false)
  end

  language_context = context_for_language(language)

  unless language_context
    return error("Unknown context for a token: #{full_name} in #{language.locale}", false)
  end

  piped_values = generate_value_map(piped_params, language_context)

  unless piped_values
    return error("Failed to generate value map for: #{full_name} in #{language.locale}", false)
  end

  rule = language_context.find_matching_rule(object)
  return label unless rule

  value = piped_values[rule.keyword]
  if value.nil? and language_context.fallback_rule
    value = piped_values[language_context.fallback_rule.keyword]
  end

  return label unless value

  substitution_value = []
  if displayed_in_translation?
    substitution_value << token_value(Tr8n::Utils.hash_value(context, key), language, options)
    substitution_value << ' '
  else
    value = value.gsub("##{short_name}#", token_value(Tr8n::Utils.hash_value(context, key), language, options))
  end
  substitution_value << value

  label.gsub(full_name, substitution_value.join(''))
end