Class: HtmlDiff::Formatter

Inherits:
Object show all
Defined in:
lib/html_diff.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Formatter

Returns a new instance of Formatter.



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# File 'lib/html_diff.rb', line 18

def initialize
  @html = ''
end

Instance Method Details

#discard_a(event) ⇒ Object 



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# File 'lib/html_diff.rb', line 27

def discard_a(event)
  start(:"diff-delete") unless @state == :"diff-delete"
  @html << event.old_element
end

#discard_b(event) ⇒ Object 



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# File 'lib/html_diff.rb', line 32

def discard_b(event)
  start(:"diff-add") unless @state == :"diff-add"
  @html << event.new_element
end

#finish ⇒ Object 



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# File 'lib/html_diff.rb', line 43

def finish
  @html << '</span>' if @state
  @html
end

#match(event) ⇒ Object 



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# File 'lib/html_diff.rb', line 22

def match(event)
  start(:match) unless @state == :match
  @html << event.old_element
end

#start(state) ⇒ Object 



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# File 'lib/html_diff.rb', line 37

def start(state)
  finish unless @state == state
  @state = state
  @html << %Q(<span class="#{state}">)
end