result.txt

»Hey, Danny! Why don't you just go,« he asked teasingly. His little 
brother stood only fifty feet from him. The ideal distance, he thought. 
No, he didn't think. He hadn't thought for the last two years of his 
life. He knew.

»Why don't you just go?« He repeated the taunt, 
knowing full well what his two years younger sibling was thinking. Ever 
since kindergarten, he had been a little distanced from the world, as if 
he lived slightly out of phase with it. As if only a fraction of the 
world's truths were real to him.

--8<----

»Why don't you just go?« He repeated the taunt, knowing full well what 
his two years younger sibling was thinking. Ever since kindergarten, he 
had been a little distanced from the world, as if he lived slightly out 
of phase with it. As if only a fraction of the world's truths were real 
to him.

wrapwrapwrap!.rb

require 'rubygems'
require 'stringray'
 
class String
  include StringRay
  
  # Constantizes a string, changing it from snake_case or 'space case' to
  # TitleCase, however necessary
  def constantize
    str = self
    str = str.gsub /\s/, '_'
    str = str.gsub(/(^|_)(\w)/) { "#{$2.capitalize}" }
  end
  
  def /(o)
    File.join(self, o.to_s)
  end
  
  def indent spaces
    if spaces.respond_to? :to_s # duck,
      self.split("\n").map {|s| [spaces, s].join }.join("\n")
    elsif spaces.respond_to? :to_i # duck,
      self.split("\n").map {|s| [(' ' * spaces), s].join }.join("\n")
    else # goose!
      raise ArgumentError, "#{spaces} is neither string-ish nor numeric-ish"
    end
  end
  
  # Simply returns an array of two string pieces split at +length+.
  def split_at length
    self.scan /.{1,#{length}}/
  end
  
  # Wraps a string, *intelligently*
  def wrap width, min = nil
    raise ArgumentError, "#{width} is not numeric-ish" unless width.respond_to? :to_i
    min ||= (width.to_i * 0.75).to_i # Default to about a third of the full width
    raise ArgumentError, "#{min} is not numeric-ish" unless min.respond_to? :to_i
    
    
    self.inject([""]) do |wrapped, word|
      #puts "word: #{word.inspect}, current line: #{wrapped.last.inspect}"
      # If we're still short enough to fit the word, do so
      if wrapped.last.length + word.rstrip.length <= width
        #puts "- new length #{wrapped.last.length + word.rstrip.length} (#{wrapped.last.length} + #{word.rstrip.length}) is less than #{width}\n\n"
        wrapped.last << word
      # Else, if we're less than minimum width
      elsif wrapped.last.length < min
        #puts "- new length #{wrapped.last.length + word.rstrip.length} (#{wrapped.last.length} + #{word.rstrip.length}) would be more than #{width}"
        #puts "- current length #{wrapped.last.length} is less than #{min}\n\n"
        bits = word.split_at(width - wrapped.last.length)
        wrapped.last << bits.shift
        bits.join.split_at(width)
        bits.each {|bit| wrapped << bit}
      # Else if neither can fit on current line, nor is line short enough; and
      # the word is short enough to fit on the new line
      elsif word.chomp.length < width
        #puts "- new length #{wrapped.last.length + word.rstrip.length} (#{wrapped.last.length} + #{word.rstrip.length}) would be more than #{width}"
        #puts "- current length #{wrapped.last.length} is more than #{min}"
        #puts "- word's length #{word.chomp.length} is less than #{width}\n\n"
        wrapped << word
      # If it can't fit on the current line, and it can't fit wholly on a line
      # by it's own
      else
        #puts "- new length #{wrapped.last.length + word.rstrip.length} (#{wrapped.last.length} + #{word.rstrip.length}) would be more than #{width}"
        #puts "- current length #{wrapped.last.length} is more than #{min}"
        #puts "- word's length #{word.chomp.length} is more than #{width}"
        bits = word.split_at(width)
        bits.each {|bit| wrapped << bit}
      end
      
      wrapped
    end.join("\n")
  end
  
end

strings = []

# Two paragraphs
strings << %{»Hey, Danny! Why don't you just go,« he asked teasingly. His little brother stood only fifty feet from him. The ideal distance, he thought. No, he didn't think. He hadn't thought for the last two years of his life. He knew.\n\n»Why don't you just go?« He repeated the taunt, knowing full well what his two years younger sibling was thinking. Ever since kindergarten, he had been a little distanced from the world, as if he lived slightly out of phase with it. As if only a fraction of the world's truths were real to him.}

# Second paragraph alone
strings << %{»Why don't you just go?« He repeated the taunt, knowing full well what his two years younger sibling was thinking. Ever since kindergarten, he had been a little distanced from the world, as if he lived slightly out of phase with it. As if only a fraction of the world's truths were real to him.}

strings.map! do |string|
  string.wrap(72)
end

puts strings.join("\n\n--8<----\n\n")