Class: OptionParser::Switch

Inherits:
Object show all
Defined in:
lib/tap/patches/optparse/summarize.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#summarize(sdone = [], ldone = [], width = 1, max = width - 1, indent = "") ⇒ Object 



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# File 'lib/tap/patches/optparse/summarize.rb', line 15

def summarize(sdone = [], ldone = [], width = 1, max = width - 1, indent = "")
  sopts, lopts = [], []
  @short.each {|s| sdone.fetch(s) {sopts << s}; sdone[s] = true} if @short
  @long.each {|s| ldone.fetch(s) {lopts << s}; ldone[s] = true} if @long
  return if sopts.empty? and lopts.empty? # completely hidden

  left = [sopts.join(', ')]
  right = desc.dup

  while str = lopts.shift
    l = left[-1].length + str.length
    l += arg.length if left.size == 1 && arg
    #l < max or left << ''
    left[-1] << if left[-1].empty? then ' ' * 4 else ', ' end << str
  end

  #left[0] << arg if arg
  left[-1] << arg if arg

  mlen = left.collect {|s| s.length}.max.to_i
  while mlen > width and l = left.shift
    mlen = left.collect {|s| s.length}.max.to_i if l.length == mlen
    yield(indent + l)
  end

  # uncomment to justify long comments
  # comment_indent = width + indent.length + 2
  # split_right = []
  # right.each do |obj|
  #   start_index = 0
  #   str = obj.to_str
  #   while start_index < str.length
  #     split_right << str[start_index, comment_indent].strip
  #     start_index += comment_indent
  #   end
  # end
  # right = split_right

  while begin l = left.shift; r = right.shift; l or r end
    l = l.to_s.ljust(width) + ' ' + r if r and !r.empty?
    #yield(indent + l)
    yield(indent + l) unless l == nil
  end

  self
end