Class: Diffing::Diff

Inherits:
Object
  • Object
show all
Defined in:
lib/diffing/diff.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(from, to, pattern = nil) ⇒ Diff

Returns a new instance of Diff.



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# File 'lib/diffing/diff.rb', line 8

def initialize( from, to, pattern = nil )
  @pattern = pattern
  @parts   = calculate( split( from.to_s ), split( to.to_s ) ).flatten
end

Instance Attribute Details

#parts ⇒ Object (readonly)

Returns the value of attribute parts.



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# File 'lib/diffing/diff.rb', line 6

def parts
  @parts
end

Instance Method Details

#as_ascii ⇒ Object Also known as: to_s, inspect 



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# File 'lib/diffing/diff.rb', line 24

def as_ascii
  format Formats::Ascii
end

#as_html ⇒ Object 



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# File 'lib/diffing/diff.rb', line 28

def as_html
  format Formats::Html
end

#format(formatter) ⇒ Object 



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# File 'lib/diffing/diff.rb', line 13

def format( formatter )
  result = []
  @parts.each do |part|
    result << formatter.source( part.source )              if part.source?
    result << formatter.insert( part.insert )              if part.insert? && !part.remove?
    result << formatter.remove( part.remove )              if part.remove? && !part.insert?
    result << formatter.change( part.remove, part.insert ) if part.insert? && part.remove?
  end
  result.join
end