# File lib/irb/output-method.rb, line 48
48:     def foo(format)
49:       pos = 0
50:       inspects = []
51:       format.scan(/%[#0\-+ ]?(\*(?=[^0-9])|\*[1-9][0-9]*\$|[1-9][0-9]*(?=[^0-9]))?(\.(\*(?=[^0-9])|\*[1-9][0-9]*\$|[1-9][0-9]*(?=[^0-9])))?(([1-9][0-9]*\$)*)([diouxXeEfgGcsb%])/) {|f, p, pp, pos, new_pos, c|
52:         puts [f, p, pp, pos, new_pos, c].join("!")
53:         pos = new_pos if new_pos
54:         if c == "I"
55:           inspects.push pos.to_i 
56:           (f||"")+(p||"")+(pp||"")+(pos||"")+"s"
57:         else
58:           $&
59:         end
60:       }
61:     end

    # File lib/irb/output-method.rb, line 44
44:     def parse_printf_format(format, opts)
45:       return format, opts if $1.size % 2 == 1
46:     end

    # File lib/irb/output-method.rb, line 70
70:     def pp(*objs)
71:       puts(*objs.collect{|obj| obj.inspect})
72:     end

    # File lib/irb/output-method.rb, line 74
74:     def ppx(prefix, *objs)
75:       puts(*objs.collect{|obj| prefix+obj.inspect})
76:     end

    # File lib/irb/output-method.rb, line 22
22:     def print(*opts)
23:       IRB.fail NotImplementError, "print"
24:     end

    # File lib/irb/output-method.rb, line 31
31:     def printf(format, *opts)
32:       if /(%*)%I/ =~ format
33:         format, opts = parse_printf_format(format, opts)
34:       end
35:       print sprintf(format, *opts)
36:     end

    # File lib/irb/output-method.rb, line 26
26:     def printn(*opts)
27:       print opts.join(" "), "\n"
28:     end

    # File lib/irb/output-method.rb, line 63
63:     def puts(*objs)
64:       for obj in objs
65:         print(*obj)
66:         print "\n"
67:       end
68:     end