Module: Coradoc::AsciiDoc::Transformer::HeaderRules

Defined in:
lib/coradoc/asciidoc/transformer/header_rules.rb

Overview

Module containing header transformation rules

Class Method Summary collapse

Class Method Details

.apply(transformer_class) ⇒ Object 



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# File 'lib/coradoc/asciidoc/transformer/header_rules.rb', line 8

def self.apply(transformer_class)
  transformer_class.class_eval do
    # Header with author and revision
    rule(
      title: simple(:title),
      author: simple(:author),
      revision: simple(:revision)
    ) do
      id = title.is_a?(Model::Title) ? title.id : nil
      Model::Header.new(id:, title:, author:, revision:)
    end

    # Header with author only
    rule(
      title: simple(:title),
      author: simple(:author)
    ) do
      id = title.is_a?(Model::Title) ? title.id : nil
      Model::Header.new(id:, title:, author:, revision: nil)
    end

    # Header with revision only
    rule(
      title: simple(:title),
      revision: simple(:revision)
    ) do
      id = title.is_a?(Model::Title) ? title.id : nil
      Model::Header.new(id:, title:, author: nil, revision:)
    end

    # Header with title only
    rule(
      title: simple(:title)
    ) do
      id = title.is_a?(Model::Title) ? title.id : nil
      Model::Header.new(id:, title:, author: nil, revision: nil)
    end

    # Author
    rule(
      first_name: simple(:first_name),
      last_name: simple(:last_name),
      email: simple(:email)
    ) do
      Model::Author.new(first_name:, last_name:, email:, middle_name: nil)
    end

    # Revision
    rule(
      number: simple(:number),
      date: simple(:date),
      remark: simple(:remark)
    ) do
      Model::Revision.new(number:, date:, remark:)
    end

    # Unwrap header hash - handles cases where header wasn't transformed yet
    rule(header: subtree(:header)) do
      if header.is_a?(Hash) && header.key?(:title)
        id = header[:id]
        id = id.to_s unless id.nil?
        id = nil if id && id.empty?

        title = header[:title]
        author = header[:author]
        revision = header[:revision]

        id = title.id if title.is_a?(Model::Title) && title.id && !id

        Model::Header.new(id:, title:, author:, revision:)
      else
        header
      end
    end

    rule(header: simple(:header)) do
      header
    end
  end
end