Results for: "String# "

Unpacks sockaddr into port and ip_address.

sockaddr should be a string or an addrinfo for AF_INET/AF_INET6.

sockaddr = Socket.sockaddr_in(80, "127.0.0.1")
p sockaddr #=> "\x02\x00\x00P\x7F\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00"
p Socket.unpack_sockaddr_in(sockaddr) #=> [80, "127.0.0.1"]

Returns local IP addresses as an array.

The array contains Addrinfo objects.

pp Socket.ip_address_list
#=> [#<Addrinfo: 127.0.0.1>,
     #<Addrinfo: 192.168.0.128>,
     #<Addrinfo: ::1>,
     ...]

Returns true for IPv6 multicast link-local scope address. It returns false otherwise.

Initialize WIN32OLE object(ActiveX Control) by calling IPersistMemory::InitNew.

Before calling OLE method, some kind of the ActiveX controls created with MFC should be initialized by calling IPersistXXX::InitNew.

If and only if you received the exception “HRESULT error code: 0x8000ffff catastrophic failure”, try this method before invoking any ole_method.

obj = WIN32OLE.new("ProgID_or_GUID_of_ActiveX_Control")
obj.ole_activex_initialize
obj.method(...)

Returns WIN32OLE object for a specific dispatch or dual interface specified by iid.

ie = WIN32OLE.new('InternetExplorer.Application')
ie_web_app = ie.ole_query_interface('{0002DF05-0000-0000-C000-000000000046}') # => WIN32OLE object for dispinterface IWebBrowserApp

Returns IO instance tied to ARGF for writing if inplace mode is enabled.

Prints all threads in @thread_list to @stdout. Returns a sorted array of values from the @thread_list hash.

While in the debugger you can list all of the threads with: DEBUGGER__.thread_list_all

(rdb:1) DEBUGGER__.thread_list_all
+1 #<Thread:0x007fb2320c03f0 run> debug_me.rb.rb:3
 2 #<Thread:0x007fb23218a538@debug_me.rb.rb:3 sleep>
 3 #<Thread:0x007fb23218b0f0@debug_me.rb.rb:3 sleep>
[1, 2, 3]

Your current thread is indicated by a +

Additionally you can list all threads with th l

(rdb:1) th l
 +1 #<Thread:0x007f99328c0410 run>  debug_me.rb:3
  2 #<Thread:0x007f9932938230@debug_me.rb:3 sleep> debug_me.rb:3
  3 #<Thread:0x007f9932938e10@debug_me.rb:3 sleep> debug_me.rb:3

See DEBUGGER__ for more usage.

Returns the value of the local variable symbol.

def foo
  a = 1
  binding.local_variable_get(:a) #=> 1
  binding.local_variable_get(:b) #=> NameError
end

This method is the short version of the following code:

binding.eval("#{symbol}")

Set local variable named symbol as obj.

def foo
  a = 1
  bind = binding
  bind.local_variable_set(:a, 2) # set existing local variable `a'
  bind.local_variable_set(:b, 3) # create new local variable `b'
                                 # `b' exists only in binding

  p bind.local_variable_get(:a)  #=> 2
  p bind.local_variable_get(:b)  #=> 3
  p a                            #=> 2
  p b                            #=> NameError
end

This method behaves similarly to the following code:

binding.eval("#{symbol} = #{obj}")

if obj can be dumped in Ruby code.

Same as each, but the row index and column index in addition to the element

Matrix[ [1,2], [3,4] ].each_with_index do |e, row, col|
  puts "#{e} at #{row}, #{col}"
end
  # => Prints:
  #    1 at 0, 0
  #    2 at 0, 1
  #    3 at 1, 0
  #    4 at 1, 1

Breaks the buffer into lines that are shorter than maxwidth

Task description for the clobber rdoc task or its renamed equivalent

Task description for the rdoc task or its renamed equivalent

Task description for the rerdoc task or its renamed description

Returns the directories in the current shell’s PATH environment variable as an array of directory names. This sets the system_path for all instances of Shell.

Example: If in your current shell, you did:

$ echo $PATH
/usr/bin:/bin:/usr/local/bin

Running this method in the above shell would then return:

["/usr/bin", "/bin", "/usr/local/bin"]

Sets the system_path that new instances of Shell should have as their initial system_path.

path should be an array of directory name strings.

Convenience method for Shell::CommandProcessor.def_system_command. Defines an instance method which will execute the given shell command. If the executable is not in Shell.default_system_path, you must supply the path to it.

Shell.def_system_command('hostname')
Shell.new.hostname # => localhost

# How to use an executable that's not in the default path

Shell.def_system_command('run_my_program', "~/hello")
Shell.new.run_my_program # prints "Hello from a C program!"

Convenience method for Shell::CommandProcessor.undef_system_command