Class: Slippery::Processors::HrToSections

Inherits:
Object
  • Object
show all
Defined in:
lib/slippery/processors/hr_to_sections.rb

Overview

Take a flat list of elements, and wrap elements between <hr> lines into a sections.

Examples:

HrToSections.new('body', H[:section]).call(doc)

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(wrapper = H[:section], selector = 'body', options = {}) ⇒ HrToSections

Returns a new instance of HrToSections.



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# File 'lib/slippery/processors/hr_to_sections.rb', line 14

def initialize(wrapper = H[:section], selector = 'body', options = {})
  @selector, @wrapper, @anchor = selector, wrapper, options.fetch(:anchor, true)
end

Class Method Details

.call(doc) ⇒ Object 



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# File 'lib/slippery/processors/hr_to_sections.rb', line 10

def self.call(doc)
  self.new.call(doc)
end

Instance Method Details

#call(doc) ⇒ Object 



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# File 'lib/slippery/processors/hr_to_sections.rb', line 18

def call(doc)
  doc.replace(@selector) { |element| hr_to_section(element) }
end

#hr_to_section(element) ⇒ Object 



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# File 'lib/slippery/processors/hr_to_sections.rb', line 22

def hr_to_section(element)
  sections = [@wrapper]
  page = 1
  element.children.each do |child|
    if child.tag == :hr
      last_section = @wrapper.merge_attrs(child)
      if @anchor
        last_section = last_section.merge_attrs(name: "#{page}")
        page += 1
      end
      sections << last_section
    else
      sections[-1] = sections.last << child
    end
  end
  element.set_children(sections)
end