Class: Diff::Hunk

Inherits:
Object show all
Defined in:
lib/taskjuggler/AlgorithmDiff.rb

Overview

A Hunk stores all information about a contiguous change of the destination list. It stores the inserted and deleted values as well as their positions in the A and B list.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(aIdx, bIdx) ⇒ Hunk

Create a new Hunk. aIdx is the index in the A list. bIdx is the index in the B list.



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# File 'lib/taskjuggler/AlgorithmDiff.rb', line 32

def initialize(aIdx, bIdx)
  @aIdx = aIdx
  # A list of values to be deleted from the A list starting at aIdx.
  @deleteValues = []

  @bIdx = bIdx
  # A list of values to be inserted into the B list at bIdx.
  @insertValues = []
end

Instance Attribute Details

#aIdx ⇒ Object

Returns the value of attribute aIdx.



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# File 'lib/taskjuggler/AlgorithmDiff.rb', line 28

def aIdx
  @aIdx
end

#bIdx ⇒ Object

Returns the value of attribute bIdx.



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# File 'lib/taskjuggler/AlgorithmDiff.rb', line 28

def bIdx
  @bIdx
end

#deleteValues ⇒ Object (readonly)

Returns the value of attribute deleteValues.



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# File 'lib/taskjuggler/AlgorithmDiff.rb', line 27

def deleteValues
  @deleteValues
end

#insertValues ⇒ Object (readonly)

Returns the value of attribute insertValues.



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# File 'lib/taskjuggler/AlgorithmDiff.rb', line 27

def insertValues
  @insertValues
end

Instance Method Details

#delete? ⇒ Boolean

Has the Hunk any values to be deleted?

Returns:

  • (Boolean) 


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# File 'lib/taskjuggler/AlgorithmDiff.rb', line 48

def delete?
  !@deleteValues.empty?
end

#insert? ⇒ Boolean

Has the Hunk any values to insert?

Returns:

  • (Boolean) 


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# File 'lib/taskjuggler/AlgorithmDiff.rb', line 43

def insert?
  !@insertValues.empty?
end

#inspect ⇒ Object 



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# File 'lib/taskjuggler/AlgorithmDiff.rb', line 71

def inspect
  puts to_s
end

#to_s ⇒ Object 



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# File 'lib/taskjuggler/AlgorithmDiff.rb', line 52

def to_s
  str = ''
  showSeparator = false
  if insert? && delete?
    str << "#{aRange}c#{bRange}\n"
    showSeparator = true
  elsif insert?
    str << "#{aIdx}a#{bRange}\n"
  else
    str << "#{aRange}d#{bIdx}\n"
  end

  @deleteValues.each { |value| str << "< #{value}\n" }
  str << "---\n" if showSeparator
  @insertValues.each { |value| str << "> #{value}\n" }

  str
end