格式化 Ruby 的 beautifulprint

是否可以更改 PrettyPrint 的宽度（require 'pp') 在格式化输出时使用？例如：

"mooth"=>["booth", "month", "mooch", "morth", "mouth", "mowth", "sooth", "tooth"]
"morth"=>["forth",
 "mirth",
 "month",
 "mooth",
 "morph",
 "mouth",
 "mowth",
 "north",
 "worth"]

第一个数组是内联打印的，因为它适合 PrettyPrint 允许的列宽（79 个字符）...第二个数组被分成多行，因为它不适合。但我找不到更改此行为开始的列的方法。

pp依赖于取决于PrettyPrint（它有方法允许缓冲区有不同的宽度）。有什么办法可以更改默认列宽pp，无需从头开始重写（访问PrettyPrint直接地）？

或者，是否有类似的 ruby​​ gem 提供此功能？

#!/usr/bin/ruby1.8

require 'pp'
mooth = [
  "booth", "month", "mooch", "morth",
  "mouth", "mowth", "sooth", "tooth"
]
PP.pp(mooth, $>, 40)
# => ["booth",
# =>  "month",
# =>  "mooch",
# =>  "morth",
# =>  "mouth",
# =>  "mowth",
# =>  "sooth",
# =>  "tooth"]
PP.pp(mooth, $>, 79)
# => ["booth", "month", "mooch", "morth", "mouth", "mowth", "sooth", "tooth"]

要使用猴子补丁更改默认值：

#!/usr/bin/ruby1.8

require 'pp'

class PP
  class << self
    alias_method :old_pp, :pp
    def pp(obj, out = $>, width = 40)
      old_pp(obj, out, width)
    end
  end
end

mooth = ["booth", "month", "mooch", "morth", "mouth", "mowth", "sooth", "tooth"]
pp(mooth)
# => ["booth",
# =>  "month",
# =>  "mooch",
# =>  "morth",
# =>  "mouth",
# =>  "mowth",
# =>  "sooth",
# =>  "tooth"]

这些方法也适用于 MRI 1.9.3