Class: Asciidoctor::Reducer::TreeProcessor

Inherits:
Extensions::TreeProcessor
  • Object
show all
Defined in:
lib/asciidoctor/reducer/tree_processor.rb

Instance Method Summary collapse

Instance Method Details

#process(doc) ⇒ Object 



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# File 'lib/asciidoctor/reducer/tree_processor.rb', line 5

def process doc
  if (inc_replacements = doc.reader.include_replacements).size > 1 || !(inc_replacements[0][:drop] || []).empty?
    inc_replacements[0][:lines] = doc.source_lines.dup
    inc_replacements.reverse_each do |it|
      if (into = it[:into])
        target_lines = inc_replacements[into][:lines]
        # adds extra assurance that the program is replacing the correct line
        unless target_lines[(idx = it[:lineno] - 1)] == it[:line]
          msg = %(include directive to reduce not found; expected: "#{it[:line]}"; got: "#{target_lines[idx]}")
          doc.logger.error msg
          next
        end
      end
      lines = it[:lines]
      unless (drop = it[:drop] || []).empty?
        drop.reverse_each do |drop_it|
          ::Array === drop_it ? (lines[drop_it[0] - 1] = drop_it[1]) : (lines.delete_at drop_it - 1)
        end
      end
      target_lines[idx] = lines if target_lines
    end
    reduced_source_lines = inc_replacements[0][:lines].flatten
    if doc.sourcemap
      logger = doc.logger
      opts = doc.options.merge logger: nil, parse: false, reduced: true
      if (ext_reg = opts[:extension_registry])
        opts[:extension_registry] = ::Asciidoctor::Extensions::Registry.new ext_reg.groups
      end
      includes = doc.catalog[:includes]
      doc = ::Asciidoctor.load reduced_source_lines, opts
      doc.catalog[:includes] = includes
      doc.parse
      ::Asciidoctor::LoggerManager.logger = logger
    else
      reduced_source_lines.pop while reduced_source_lines[-1] == ''
      doc.source_lines.replace reduced_source_lines
    end
  end
  doc
end