Class: Enolib::Context

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input, locale: Locales::En, reporter: TextReporter, source: nil) ⇒ Context

Returns a new instance of Context.



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# File 'lib/enolib/context.rb', line 7

def initialize(input, locale: Locales::En, reporter: TextReporter, source: nil)
  @input = input
  @messages = locale
  @reporter = reporter
  @source = source

  @document = {
    elements: [],
    type: :document
  }

  @meta = []

  Parser.new(self).run
end

Instance Attribute Details

#document ⇒ Object

Returns the value of attribute document.



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# File 'lib/enolib/context.rb', line 5

def document
  @document
end

#input ⇒ Object

Returns the value of attribute input.



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# File 'lib/enolib/context.rb', line 5

def input
  @input
end

#line_count ⇒ Object

Returns the value of attribute line_count.



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# File 'lib/enolib/context.rb', line 5

def line_count
  @line_count
end

#messages ⇒ Object

Returns the value of attribute messages.



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# File 'lib/enolib/context.rb', line 5

def messages
  @messages
end

#meta ⇒ Object

Returns the value of attribute meta.



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# File 'lib/enolib/context.rb', line 5

def meta
  @meta
end

#reporter ⇒ Object

Returns the value of attribute reporter.



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# File 'lib/enolib/context.rb', line 5

def reporter
  @reporter
end

#source ⇒ Object

Returns the value of attribute source.



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# File 'lib/enolib/context.rb', line 5

def source
  @source
end

Instance Method Details

#comment(element) ⇒ Object 



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# File 'lib/enolib/context.rb', line 23

def comment(element)
  unless element.has_key?(:computed_comment)
    element[:computed_comment] =
      if !element.has_key?(:comments)
        nil
      elsif element[:comments].length == 1
        element[:comments].first[:comment]
      else
        first_non_empty_line_index = nil
        last_non_empty_line_index = nil
        shared_indent = Float::INFINITY

        element[:comments].each_with_index do |comment, index|
          next unless comment.has_key?(:comment)

          first_non_empty_line_index ||= index
          last_non_empty_line_index = index

          indent = comment[:ranges][:comment][RANGE_BEGIN] - comment[:ranges][:line][RANGE_BEGIN]
          shared_indent = indent if indent < shared_indent
        end

        if first_non_empty_line_index
          non_empty_lines = element[:comments][first_non_empty_line_index..last_non_empty_line_index]

          non_empty_lines.map do |comment|
            if !comment.has_key?(:comment)
              ''
            elsif (comment[:ranges][:comment][RANGE_BEGIN] - comment[:ranges][:line][RANGE_BEGIN]) == shared_indent
              comment[:comment]
            else
              (' ' * (comment[:ranges][:comment][RANGE_BEGIN] - comment[:ranges][:line][RANGE_BEGIN] - shared_indent)) + comment[:comment]
            end
          end.join("\n")
        else
          nil
        end
      end
  end

  element[:computed_comment]
end

#elements(section) ⇒ Object 



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# File 'lib/enolib/context.rb', line 66

def elements(section)
  return elements(section[:mirror]) if section.has_key?(:mirror)

  unless section.has_key?(:computed_elements)
    section[:computed_elements] = section[:elements]
    section[:computed_elements_map] = {}

    section[:computed_elements].each do |element|
      if section[:computed_elements_map].has_key?(element[:key])
        section[:computed_elements_map][element[:key]].push(element)
      else
        section[:computed_elements_map][element[:key]] = [element]
      end
    end

    if section.has_key?(:extend)
      copied_elements = elements(section[:extend]).reject { |element| section[:computed_elements_map].has_key?(element[:key]) }

      section[:computed_elements] = copied_elements + section[:computed_elements]

      copied_elements.each do |element|
        if section[:computed_elements_map].has_key?(element[:key])
          section[:computed_elements_map][element[:key]].push(element)
        else
          section[:computed_elements_map][element[:key]] = [element]
        end
      end
    end
  end

  section[:computed_elements]
end

#entries(fieldset) ⇒ Object 



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# File 'lib/enolib/context.rb', line 99

def entries(fieldset)
  return entries(fieldset[:mirror]) if fieldset.has_key?(:mirror)

  unless fieldset.has_key?(:computed_entries)
    fieldset[:computed_entries] = fieldset[:entries]
    fieldset[:computed_entries_map] = {}

    fieldset[:computed_entries].each do |entry|
      if fieldset[:computed_entries_map].has_key?(entry[:key])
        fieldset[:computed_entries_map][entry[:key]].push(entry)
      else
        fieldset[:computed_entries_map][entry[:key]] = [entry]
      end
    end

    if fieldset.has_key?(:extend)
      copied_entries = entries(fieldset[:extend]).reject { |entry| fieldset[:computed_entries_map].has_key?(entry[:key]) }

      fieldset[:computed_entries] = copied_entries + fieldset[:computed_entries]

      copied_entries.each do |entry|
        if fieldset[:computed_entries_map].has_key?(entry[:key])
          fieldset[:computed_entries_map][entry[:key]].push(entry)
        else
          fieldset[:computed_entries_map][entry[:key]] = [entry]
        end
      end
    end
  end

  fieldset[:computed_entries]
end

#items(list) ⇒ Object 



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# File 'lib/enolib/context.rb', line 132

def items(list)
  if list.has_key?(:mirror)
    items(list[:mirror])
  elsif list.has_key?(:extend)
    items(list[:extend]) + list[:items]
  elsif list.has_key?(:items)
    list[:items]
  else
    []
  end
end

#raw(element) ⇒ Object 



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# File 'lib/enolib/context.rb', line 144

def raw(element)
  # TODO: In other implementations there is only one 'field' type
  #       here we get a) symbols, b) including :multiline_field_begin
  result = { type: element[:type] }

  # TODO: Revisit to think through the case of a present but empty comment
  result[:comment] = comment(element) if element.has_key?(:comments)

  case element[:type]
  when :empty_element
    result[:key] = element[:key]
  when :field
    result[:key] = element[:key]
    result[:value] = value(element)
  when :list_item
    result[:value] = value(element)
  when :fieldset_entry
    result[:key] = element[:key]
    result[:value] = value(element)
  when :multiline_field_begin
    result[:key] = element[:key]
    result[:value] = value(element)
  when :list
    result[:key] = element[:key]
    result[:items] = items(element).map { |item| raw(item) }
  when :fieldset
    result[:key] = element[:key]
    result[:entries] = entries(element).map { |entry| raw(entry) }
  when :section
    result[:key] = element[:key]
    result[:elements] = elements(element).map { |section_element| raw(section_element) }
  when :document
    result[:elements] = elements(element).map { |section_element| raw(section_element) }
  end

  result
end

#value(element) ⇒ Object 



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# File 'lib/enolib/context.rb', line 182

def value(element)
  unless element.has_key?(:computed_value)
    return value(element[:mirror]) if element.has_key?(:mirror)

    element[:computed_value] = nil

    if element[:type] == :multiline_field_begin
      if element.has_key?(:lines)
        element[:computed_value] = @input[
          element[:lines][0][:ranges][:line][0]...element[:lines][-1][:ranges][:line][1]
        ]
      end
    else
      element[:computed_value] = element[:value] if element.has_key?(:value)

      if element.has_key?(:continuations)
        unapplied_spacing = nil

        element[:continuations].each do |continuation|
          if element[:computed_value] == nil
            element[:computed_value] = continuation[:value] if continuation.has_key?(:value)
            unapplied_spacing = nil
          elsif !continuation.has_key?(:value)
            unapplied_spacing ||= continuation.has_key?(:spaced)
          elsif continuation.has_key?(:spaced) || unapplied_spacing
            element[:computed_value] += ' ' + continuation[:value]
            unapplied_spacing = nil
          else
            element[:computed_value] += continuation[:value]
          end
        end
      end
    end
  end

  element[:computed_value]
end