How to prevent prawn wrap_by_char? charred.pdf

prawn_wrapped.rb

#!/usr/bin/env ruby
require 'rubygems'
require 'prawn'

@pdf = Prawn::Document.new

x = 0
texts = [ "alexander", "the alexander", "the alexander building" ]

texts.each do |text|
  @pdf.bounding_box([x, 700], :height => 250, :width => 150) do
    @pdf.stroke_bounds
    @pdf.text_box text, :size => 100, :min_font_size => 2, :overflow => :shrink_to_fit
    x += 200
  end
end

PrawnSplitWord = Class.new(StandardError)

module Prawn
  module Core
    module Text
      module Formatted #:nodoc:
        class LineWrap #:nodoc:
          def wrap_by_char(segment)
            raise PrawnSplitWord
          end
        end
      end
    end
  end
end


module Prawn
  module Text
    module Formatted
      class Box
        def shrink_to_fit(text)
          begin
            wrap(text)
          rescue PrawnSplitWord
            @everything_printed = false
          end
          until @everything_printed || @font_size <= @min_font_size
            @font_size = [@font_size - 0.5, @min_font_size].max
            @document.font_size = @font_size
            begin
              wrap(text)
            rescue PrawnSplitWord
              @everything_printed = false
            end
          end
        end
      end
    end
  end
end


x = 0
texts.each do |text|
  @pdf.bounding_box([x, 300], :height => 250, :width => 150) do
    @pdf.stroke_bounds
    @pdf.text_box text, :size => 100, :min_font_size => 2, :overflow => :shrink_to_fit
    x += 200
  end
end


@pdf.render_file 'charred.pdf'