class IRB::OutputMethod

or Context.new
IRB::Notifier. You can define your own output method to use with Irb.new,
An abstract output class for IO in irb. This is mainly used internally by

def parse_printf_format(format, opts)

[diouxXeEfgGcsb%]
#(hh|h|l|ll|L|q|j|z|t)
.(\*|\*[1-9][0-9]*\$|[1-9][0-9]*|)?
(\*|\*[1-9][0-9]*\$|[1-9][0-9]*)
[#0- +]
%

+format+ from #printf
Kernel#sprintf, if there was a successful Regexp match in the given
Returns an array of the given +format+ and +opts+ to be used by 
def parse_printf_format(format, opts)
  return format, opts if $1.size % 2 == 1
end

def pp(*objs)

See #puts for more detail.

Prints the given +objs+ calling Object#inspect on each. 
def pp(*objs)
  puts(*objs.collect{|obj| obj.inspect})
end

def ppx(prefix, *objs)

See #puts for more detail.

given +prefix+.
Prints the given +objs+ calling Object#inspect on each and appending the 
def ppx(prefix, *objs)
  puts(*objs.collect{|obj| prefix+obj.inspect})
end

def print(*opts)

NotImplementedError if you don't define #print in your own class.
Open this method to implement your own output method, raises a 
def print(*opts)
  raise NotImplementedError, "print"
end

def printf(format, *opts)

#parse_printf_format
Extends IO#printf to format the given +opts+ for Kernel#sprintf using 
def printf(format, *opts)
  if /(%*)%I/ =~ format
    format, opts = parse_printf_format(format, opts)
  end
  print sprintf(format, *opts)
end

def printn(*opts)

Prints the given +opts+, with a newline delimiter. 
def printn(*opts)
  print opts.join(" "), "\n"
end

def puts(*objs)

character.
Calls #print on each element in the given +objs+, followed by a newline 
def puts(*objs)
  for obj in objs
    print(*obj)
    print "\n"
  end
end