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require 'prettyprint'

module Kernel
  # returns a pretty printed object as a string.
  def pretty_inspect
    PP.pp(self, '')
  end

  private
  # prints arguments in pretty form.
  #
  # pp returns argument(s).
  def pp(*objs) # :doc:
    objs.each {|obj|
      PP.pp(obj)
    }
    objs.size <= 1 ? objs.first : objs
  end
  module_function :pp
end

# == Pretty-printer for Ruby objects.
#
# = Which seems better?
#
# non-pretty-printed output by #p is:
#   #<PP:0x81fedf0 @genspace=#<Proc:0x81feda0>, @group_queue=#<PrettyPrint::GroupQueue:0x81fed3c @queue=[[#<PrettyPrint::Group:0x81fed78 @breakables=[], @depth=0, @break=false>], []]>, @buffer=[], @newline="\n", @group_stack=[#<PrettyPrint::Group:0x81fed78 @breakables=[], @depth=0, @break=false>], @buffer_width=0, @indent=0, @maxwidth=79, @output_width=2, @output=#<IO:0x8114ee4>>
#
# pretty-printed output by #pp is:
#   #<PP:0x81fedf0
#    @buffer=[],
#    @buffer_width=0,
#    @genspace=#<Proc:0x81feda0>,
#    @group_queue=
#     #<PrettyPrint::GroupQueue:0x81fed3c
#      @queue=
#       [[#<PrettyPrint::Group:0x81fed78 @break=false, @breakables=[], @depth=0>],
#        []]>,
#    @group_stack=
#     [#<PrettyPrint::Group:0x81fed78 @break=false, @breakables=[], @depth=0>],
#    @indent=0,
#    @maxwidth=79,
#    @newline="\n",
#    @output=#<IO:0x8114ee4>,
#    @output_width=2>
#
# I like the latter.  If you do too, this library is for you.
#
# = Usage
#
#   pp(obj)             #=> obj
#   pp(obj1, obj2, ...) #=> [obj1, obj2, ...]
#   pp()                #=> nil
#
# output +obj(s)+ to +$>+ in pretty printed format.
#
# It returns +obj(s)+.
#
# = Output Customization
# To define your customized pretty printing function for your classes,
# redefine a method #pretty_print(+pp+) in the class.
# It takes an argument +pp+ which is an instance of the class PP.
# The method should use PP#text, PP#breakable, PP#nest, PP#group and
# PP#pp to print the object.
#
# = Author
# Tanaka Akira <akr@m17n.org>
class PP < PrettyPrint
  # Outputs +obj+ to +out+ in pretty printed format of
  # +width+ columns in width.
  #
  # If +out+ is omitted, +$>+ is assumed.
  # If +width+ is omitted, 79 is assumed.
  #
  # PP.pp returns +out+.
  def PP.pp(obj, out=$>, width=79)
    q = PP.new(out, width)
    q.guard_inspect_key {q.pp obj}
    q.flush
    #$pp = q
    out << "\n"
  end

  # Outputs +obj+ to +out+ like PP.pp but with no indent and
  # newline.
  #
  # PP.singleline_pp returns +out+.
  def PP.singleline_pp(obj, out=$>)
    q = SingleLine.new(out)
    q.guard_inspect_key {q.pp obj}
    q.flush
    out
  end

  # :stopdoc:
  def PP.mcall(obj, mod, meth, *args, &block)
    mod.instance_method(meth).bind(obj).call(*args, &block)
  end
  # :startdoc:

  @sharing_detection = false
  class << self
    # Returns the sharing detection flag as a boolean value.
    # It is false by default.
    attr_accessor :sharing_detection
  end

  module PPMethods
    def guard_inspect_key
      if Thread.current[:__recursive_key__] == nil
        Thread.current[:__recursive_key__] = {}.untrust
      end

      if Thread.current[:__recursive_key__][:inspect] == nil
        Thread.current[:__recursive_key__][:inspect] = {}.untrust
      end

      save = Thread.current[:__recursive_key__][:inspect]

      begin
        Thread.current[:__recursive_key__][:inspect] = {}.untrust
        yield
      ensure
        Thread.current[:__recursive_key__][:inspect] = save
      end
    end

    def check_inspect_key(id)
      Thread.current[:__recursive_key__] &&
      Thread.current[:__recursive_key__][:inspect] &&
      Thread.current[:__recursive_key__][:inspect].include?(id)
    end
    def push_inspect_key(id)
      Thread.current[:__recursive_key__][:inspect][id] = true
    end
    def pop_inspect_key(id)
      Thread.current[:__recursive_key__][:inspect].delete id
    end

    # Adds +obj+ to the pretty printing buffer
    # using Object#pretty_print or Object#pretty_print_cycle.
    #
    # Object#pretty_print_cycle is used when +obj+ is already
    # printed, a.k.a the object reference chain has a cycle.
    def pp(obj)
      id = obj.object_id

      if check_inspect_key(id)
        group {obj.pretty_print_cycle self}
        return
      end

      begin
        push_inspect_key(id)
        group {obj.pretty_print self}
      ensure
        pop_inspect_key(id) unless PP.sharing_detection
      end
    end

    # A convenience method which is same as follows:
    #
    #   group(1, '#<' + obj.class.name, '>') { ... }
    def object_group(obj, &block) # :yield:
      group(1, '#<' + obj.class.name, '>', &block)
    end

    PointerMask = (1 << ([""].pack("p").size * 8)) - 1

    case Object.new.inspect
    when /\A\#<Object:0x([0-9a-f]+)>\z/
      PointerFormat = "%0#{$1.length}x"
    else
      PointerFormat = "%x"
    end

    def object_address_group(obj, &block)
      id = PointerFormat % (obj.object_id * 2 & PointerMask)
      group(1, "\#<#{obj.class}:0x#{id}", '>', &block)
    end

    # A convenience method which is same as follows:
    #
    #   text ','
    #   breakable
    def comma_breakable
      text ','
      breakable
    end

    # Adds a separated list.
    # The list is separated by comma with breakable space, by default.
    #
    # #seplist iterates the +list+ using +iter_method+.
    # It yields each object to the block given for #seplist.
    # The procedure +separator_proc+ is called between each yields.
    #
    # If the iteration is zero times, +separator_proc+ is not called at all.
    #
    # If +separator_proc+ is nil or not given,
    # +lambda { comma_breakable }+ is used.
    # If +iter_method+ is not given, :each is used.
    #
    # For example, following 3 code fragments has similar effect.
    #
    #   q.seplist([1,2,3]) {|v| xxx v }
    #
    #   q.seplist([1,2,3], lambda { q.comma_breakable }, :each) {|v| xxx v }
    #
    #   xxx 1
    #   q.comma_breakable
    #   xxx 2
    #   q.comma_breakable
    #   xxx 3
    def seplist(list, sep=nil, iter_method=:each) # :yield: element
      sep ||= lambda { comma_breakable }
      first = true
      list.__send__(iter_method) {|*v|
        if first
          first = false
        else
          sep.call
        end
        yield(*v)
      }
    end

    def pp_object(obj)
      object_address_group(obj) {
        seplist(obj.pretty_print_instance_variables, lambda { text ',' }) {|v|
          breakable
          v = v.to_s if Symbol === v
          text v
          text '='
          group(1) {
            breakable ''
            pp(obj.instance_eval(v))
          }
        }
      }
    end

    def pp_hash(obj)
      group(1, '{', '}') {
        seplist(obj, nil, :each_pair) {|k, v|
          group {
            pp k
            text '=>'
            group(1) {
              breakable ''
              pp v
            }
          }
        }
      }
    end
  end

  include PPMethods

  class SingleLine < PrettyPrint::SingleLine
    include PPMethods
  end

  module ObjectMixin
    # 1. specific pretty_print
    # 2. specific inspect
    # 3. generic pretty_print

    # A default pretty printing method for general objects.
    # It calls #pretty_print_instance_variables to list instance variables.
    #
    # If +self+ has a customized (redefined) #inspect method,
    # the result of self.inspect is used but it obviously has no
    # line break hints.
    #
    # This module provides predefined #pretty_print methods for some of
    # the most commonly used built-in classes for convenience.
    def pretty_print(q)
      method_method = Object.instance_method(:method).bind(self)
      begin
        inspect_method = method_method.call(:inspect)
      rescue NameError
      end
      if inspect_method && /\(Kernel\)#/ !~ inspect_method.inspect
        q.text self.inspect
      elsif !inspect_method && self.respond_to?(:inspect)
        q.text self.inspect
      else
        q.pp_object(self)
      end
    end

    # A default pretty printing method for general objects that are
    # detected as part of a cycle.
    def pretty_print_cycle(q)
      q.object_address_group(self) {
        q.breakable
        q.text '...'
      }
    end

    # Returns a sorted array of instance variable names.
    #
    # This method should return an array of names of instance variables as symbols or strings as:
    # +[:@a, :@b]+.
    def pretty_print_instance_variables
      instance_variables.sort
    end

    # Is #inspect implementation using #pretty_print.
    # If you implement #pretty_print, it can be used as follows.
    #
    #   alias inspect pretty_print_inspect
    #
    # However, doing this requires that every class that #inspect is called on
    # implement #pretty_print, or a RuntimeError will be raised.
    def pretty_print_inspect
      if /\(PP::ObjectMixin\)#/ =~ Object.instance_method(:method).bind(self).call(:pretty_print).inspect
        raise "pretty_print is not overridden for #{self.class}"
      end
      PP.singleline_pp(self, '')
    end
  end
end

class Array
  def pretty_print(q)
    q.group(1, '[', ']') {
      q.seplist(self) {|v|
        q.pp v
      }
    }
  end

  def pretty_print_cycle(q)
    q.text(empty? ? '[]' : '[...]')
  end
end

class Hash
  def pretty_print(q)
    q.pp_hash self
  end

  def pretty_print_cycle(q)
    q.text(empty? ? '{}' : '{...}')
  end
end

class << ENV
  def pretty_print(q)
    h = {}
    ENV.keys.sort.each {|k|
      h[k] = ENV[k]
    }
    q.pp_hash h
  end
end

class Struct
  def pretty_print(q)
    q.group(1, sprintf("#<struct %s", PP.mcall(self, Kernel, :class).name), '>') {
      q.seplist(PP.mcall(self, Struct, :members), lambda { q.text "," }) {|member|
        q.breakable
        q.text member.to_s
        q.text '='
        q.group(1) {
          q.breakable ''
          q.pp self[member]
        }
      }
    }
  end

  def pretty_print_cycle(q)
    q.text sprintf("#<struct %s:...>", PP.mcall(self, Kernel, :class).name)
  end
end

class Range
  def pretty_print(q)
    q.pp self.begin
    q.breakable ''
    q.text(self.exclude_end? ? '...' : '..')
    q.breakable ''
    q.pp self.end
  end
end

class File < IO
  class Stat
    def pretty_print(q)
      require 'etc.so'
      q.object_group(self) {
        q.breakable
        q.text sprintf("dev=0x%x", self.dev); q.comma_breakable
        q.text "ino="; q.pp self.ino; q.comma_breakable
        q.group {
          m = self.mode
          q.text sprintf("mode=0%o", m)
          q.breakable
          q.text sprintf("(%s %c%c%c%c%c%c%c%c%c)",
            self.ftype,
            (m & 0400 == 0 ? ?- : ?r),
            (m & 0200 == 0 ? ?- : ?w),
            (m & 0100 == 0 ? (m & 04000 == 0 ? ?- : ?S) :
                             (m & 04000 == 0 ? ?x : ?s)),
            (m & 0040 == 0 ? ?- : ?r),
            (m & 0020 == 0 ? ?- : ?w),
            (m & 0010 == 0 ? (m & 02000 == 0 ? ?- : ?S) :
                             (m & 02000 == 0 ? ?x : ?s)),
            (m & 0004 == 0 ? ?- : ?r),
            (m & 0002 == 0 ? ?- : ?w),
            (m & 0001 == 0 ? (m & 01000 == 0 ? ?- : ?T) :
                             (m & 01000 == 0 ? ?x : ?t)))
        }
        q.comma_breakable
        q.text "nlink="; q.pp self.nlink; q.comma_breakable
        q.group {
          q.text "uid="; q.pp self.uid
          begin
            pw = Etc.getpwuid(self.uid)
          rescue ArgumentError
          end
          if pw
            q.breakable; q.text "(#{pw.name})"
          end
        }
        q.comma_breakable
        q.group {
          q.text "gid="; q.pp self.gid
          begin
            gr = Etc.getgrgid(self.gid)
          rescue ArgumentError
          end
          if gr
            q.breakable; q.text "(#{gr.name})"
          end
        }
        q.comma_breakable
        q.group {
          q.text sprintf("rdev=0x%x", self.rdev)
          q.breakable
          q.text sprintf('(%d, %d)', self.rdev_major, self.rdev_minor)
        }
        q.comma_breakable
        q.text "size="; q.pp self.size; q.comma_breakable
        q.text "blksize="; q.pp self.blksize; q.comma_breakable
        q.text "blocks="; q.pp self.blocks; q.comma_breakable
        q.group {
          t = self.atime
          q.text "atime="; q.pp t
          q.breakable; q.text "(#{t.tv_sec})"
        }
        q.comma_breakable
        q.group {
          t = self.mtime
          q.text "mtime="; q.pp t
          q.breakable; q.text "(#{t.tv_sec})"
        }
        q.comma_breakable
        q.group {
          t = self.ctime
          q.text "ctime="; q.pp t
          q.breakable; q.text "(#{t.tv_sec})"
        }
      }
    end
  end
end

class MatchData
  def pretty_print(q)
    nc = []
    self.regexp.named_captures.each {|name, indexes|
      indexes.each {|i| nc[i] = name }
    }
    q.object_group(self) {
      q.breakable
      q.seplist(0...self.size, lambda { q.breakable }) {|i|
        if i == 0
          q.pp self[i]
        else
          if nc[i]
            q.text nc[i]
          else
            q.pp i
          end
          q.text ':'
          q.pp self[i]
        end
      }
    }
  end
end

class Object < BasicObject
  include PP::ObjectMixin
end

[Numeric, Symbol, FalseClass, TrueClass, NilClass, Module].each {|c|
  c.class_eval {
    def pretty_print_cycle(q)
      q.text inspect
    end
  }
}

[Numeric, FalseClass, TrueClass, Module].each {|c|
  c.class_eval {
    def pretty_print(q)
      q.text inspect
    end
  }
}

Filemanager

DIR : / usr/ share/ ruby/
Name Type Size Permission Actions
bigdecimal Folder 0755
cgi Folder 0755
date Folder 0755
digest Folder 0755
dl Folder 0755
drb Folder 0755
fiddle Folder 0755
io Folder 0755
irb Folder 0755
json Folder 0755
matrix Folder 0755
net Folder 0755
openssl Folder 0755
optparse Folder 0755
psych Folder 0755
racc Folder 0755
rbconfig Folder 0755
rexml Folder 0755
rinda Folder 0755
ripper Folder 0755
rss Folder 0755
shell Folder 0755
syslog Folder 0755
test Folder 0755
uri Folder 0755
vendor_ruby Folder 0755
webrick Folder 0755
xmlrpc Folder 0755
yaml Folder 0755
English.rb File 6.44 KB 0644
abbrev.rb File 3.31 KB 0644
base64.rb File 2.63 KB 0644
benchmark.rb File 17.94 KB 0644
cgi.rb File 9.39 KB 0644
cmath.rb File 7.22 KB 0644
complex.rb File 380 B 0644
csv.rb File 81.32 KB 0644
date.rb File 946 B 0644
debug.rb File 28.9 KB 0644
delegate.rb File 9.78 KB 0644
digest.rb File 2.24 KB 0644
dl.rb File 280 B 0644
drb.rb File 19 B 0644
e2mmap.rb File 3.8 KB 0644
erb.rb File 26.08 KB 0644
expect.rb File 2.14 KB 0644
fiddle.rb File 1.25 KB 0644
fileutils.rb File 46.35 KB 0644
find.rb File 2.08 KB 0644
forwardable.rb File 7.56 KB 0644
getoptlong.rb File 15.38 KB 0644
gserver.rb File 8.86 KB 0644
ipaddr.rb File 26.17 KB 0644
irb.rb File 20.03 KB 0644
json.rb File 1.74 KB 0644
kconv.rb File 5.74 KB 0644
logger.rb File 20.96 KB 0644
mathn.rb File 6.52 KB 0644
matrix.rb File 45.02 KB 0644
mkmf.rb File 78.13 KB 0644
monitor.rb File 6.93 KB 0644
mutex_m.rb File 2 KB 0644
observer.rb File 5.71 KB 0644
open-uri.rb File 23.66 KB 0644
open3.rb File 21.17 KB 0644
openssl.rb File 528 B 0644
optparse.rb File 51.27 KB 0644
ostruct.rb File 7.64 KB 0644
pathname.rb File 15.3 KB 0644
pp.rb File 13.14 KB 0644
prettyprint.rb File 9.63 KB 0644
prime.rb File 13.98 KB 0644
profile.rb File 205 B 0644
profiler.rb File 4.29 KB 0644
pstore.rb File 14.85 KB 0644
psych.rb File 11.45 KB 0644
rational.rb File 308 B 0644
resolv-replace.rb File 1.73 KB 0644
resolv.rb File 61.46 KB 0644
ripper.rb File 2.53 KB 0644
rss.rb File 2.84 KB 0644
scanf.rb File 23.52 KB 0644
securerandom.rb File 8.56 KB 0644
set.rb File 17.32 KB 0644
shell.rb File 10.3 KB 0644
shellwords.rb File 5.94 KB 0644
singleton.rb File 4.02 KB 0644
socket.rb File 25.76 KB 0644
sync.rb File 7.26 KB 0644
tempfile.rb File 10.15 KB 0644
thread.rb File 6.94 KB 0644
thwait.rb File 3.38 KB 0644
time.rb File 21.09 KB 0644
timeout.rb File 3.16 KB 0644
tmpdir.rb File 4.29 KB 0644
tracer.rb File 6.54 KB 0644
tsort.rb File 6.79 KB 0644
un.rb File 8.34 KB 0644
uri.rb File 3.07 KB 0644
weakref.rb File 3.23 KB 0644
webrick.rb File 6.7 KB 0644
xmlrpc.rb File 8.49 KB 0644
yaml.rb File 2.3 KB 0644