Module: Differ

Defined in:
lib/differ.rb,
lib/differ/diff.rb,
lib/differ/change.rb,
lib/differ/string.rb,
lib/differ/version.rb,
lib/differ/format/html.rb,
lib/differ/format/ascii.rb,
lib/differ/format/color.rb,
lib/differ/format/patch.rb

Defined Under Namespace

Modules: Format, StringDiffer Classes: Change, Diff

Constant Summary collapse

VERSION = 
"1.0.0"

Class Method Summary collapse

Class Method Details

.diff(target, source, new_sep = "\n") ⇒ Object 



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# File 'lib/differ.rb', line 19

def diff(target, source, new_sep = "\n")
  old_sep = self.separator
  self.separator = new_sep

  target = target.split(new_sep)
  source = source.split(new_sep)

  self.separator = '' if new_sep.is_a? Regexp

  @diff = Diff.new
  advance(target, source) until source.empty? || target.empty?
  @diff.insert(*target) || @diff.delete(*source)
  return @diff
ensure
  self.separator = old_sep
end

.diff_by_char(to, from) ⇒ Object 



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# File 'lib/differ.rb', line 36

def diff_by_char(to, from)
  diff(to, from, '')
end

.diff_by_line(to, from) ⇒ Object 



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# File 'lib/differ.rb', line 44

def diff_by_line(to, from)
  diff(to, from, "\n")
end

.diff_by_word(to, from) ⇒ Object 



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# File 'lib/differ.rb', line 40

def diff_by_word(to, from)
  diff(to, from, /\b/)
end

.format ⇒ Object 



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# File 'lib/differ.rb', line 52

def format
  return @format || Format::Ascii
end

.format=(f) ⇒ Object 



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# File 'lib/differ.rb', line 48

def format=(f)
  @format = format_for(f)
end

.format_for(f) ⇒ Object 



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# File 'lib/differ.rb', line 56

def format_for(f)
  if f.respond_to? :call
    f
  else       
    case f
    when :ascii then Format::Ascii
    when :color then Format::Color
    when :html  then Format::HTML
    when :patch then Format::Patch
    when nil    then nil
    else raise "Unknown format type #{f.inspect}"
    end
  end
end

.separator ⇒ Object 



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# File 'lib/differ.rb', line 15

def separator
  @@separator
end

.separator=(separator) ⇒ Object 



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# File 'lib/differ.rb', line 11

def separator=(separator)
  @@separator = separator
end