Class: WCC::DiffItem

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(line) ⇒ DiffItem

Returns a new instance of DiffItem.



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

def initialize(line)
	# parse line
	if line.start_with?('+++')
		@status = :new
		@text = line.substring(3)
	elsif line.start_with?('---')
		@status = :old
		@text = line.substring(3)
	elsif line.start_with?('@@')
		@status = :range
		@text = line.substring(2)
	elsif line.start_with?('+')
		@status = :ins
		@text = line.substring(1)
	elsif line.start_with?('-')
		@status = :del
		@text = line.substring(1)
	else
		@status = :other
		@text = line.rstrip
		@text = ' ' if @text.empty?
	end
	@text.gsub!(/\n/, '')
	@hilite = nil
end

Instance Attribute Details

#hilite ⇒ Object

Returns the value of attribute hilite.



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

def hilite
  @hilite
end

#status ⇒ Object (readonly)

Returns the value of attribute status.



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# File 'lib/wcc/diff.rb', line 5

def status
  @status
end

#text ⇒ Object (readonly)

Returns the value of attribute text.



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# File 'lib/wcc/diff.rb', line 5

def text
  @text
end

Instance Method Details

#html_hilite_text(css_klass = 'hilite') ⇒ Object 



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# File 'lib/wcc/diff.rb', line 34

def html_hilite_text(css_klass = 'hilite')
	return @text if @hilite.nil?
	
	i = 0
	new_text = ''
	in_span = false
	@text.chars.to_a.each do |c|
		if @hilite.include?(i)
			if not in_span
				new_text += "<span class=\"#{css_klass}\">"
				in_span = true
			end
			new_text += (c == ' ' ? '&nbsp;' : c)
		else
			if in_span
				new_text += "</span>"
				in_span = false
			end
			new_text += c
		end
		i += 1
	end
	new_text += "</span>" if in_span
	new_text
end

#rchar ⇒ String

Returns a representing character for the kind of this diff item.

Returns:

  • (String) —

    single rep char



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# File 'lib/wcc/diff.rb', line 62

def rchar
	case status
	when :new
		'N'
	when :old
		'O'
	when :range
		'@'
	when :ins
		'i'
	when :del
		'd'
	when :other
		'_'
	end
end

#to_s ⇒ String

Returns an unified diff line without trailing newline.

Returns:

  • (String) —

    unified diff line



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# File 'lib/wcc/diff.rb', line 81

def to_s
	case status
	when :new
		'+++'+text
	when :old
		'---'+text
	when :range
		'@@'+text
	when :ins
		'+'+text
	when :del
		'-'+text
	when :other
		' '+text
	end
end