Create a program that output's itself as a series of punch cards
Ruby - 925

I'll get the ball rolling. Run as "ruby hammer.rb hammer.rb".

Golfed


def z x
l=x.unpack u='C*'
d=[]
(0..9).each do|i|d&lt;&lt;[].fill(48+i,0,80);end
d&lt;&lt;a=[].fill(32,0,80)
d&lt;&lt;a.dup
h=Hash.new
i=0;' abcdefghi'.unpack(u).each do|c|h[c-32]=[i,11];h[c]=[i,11,0];i+=1;end
i=0;' jklmnopqr'.unpack(u).each do|c|h[c-32]=[i,10];h[c]=[i,10,11];i+=1;end
i=0;'  stuvwxyz'.unpack(u).each do|c|h[c-32]=[i,0];h[c]=[i,0,10];i+=1;end
h[47]=[1,0]
i=0;'0123456789-&'.unpack(u).each do|c|h[c]=[i];i+=1;end
i=0;'  :#@\'="'.unpack(u).each do|c|h[c]=[i,8];i+=1;end
i=0;'  [.&lt;(+|'.unpack(u).each do|c|h[c]=[i,8,11];i+=1;end
i=0;'  ]$*);^'.unpack(u).each do|c|h[c]=[i,8,10];i+=1;end
i=0;'  \,%_&gt;?'.unpack(u).each do|c|h[c]=[i,8,0];i+=1;end
h[32]=[]
i=0;l.slice(0,80).each do|c|h[c].each do|r|d[r][i]=215;end;i+=1;end
puts'    %s'%('_'*81)
puts'   /%-80s |'%l.pack(u)
puts'  / %s |'%d[11].pack(u)
puts' /  %s |'%d[10].pack(u)
(0..9).each do|i|puts'|   %s |'%d[i].pack(u);end
puts'|%s|'%('_'*84)
end
ARGF.each do|l|z l.chop;end


Ungolfed


def punch029(line) # line is array of ASCII characters in ordinal (integer) form
  chad=[]
  (0..9).each do |i| chad&lt;&lt;[].fill(48+i,0,80) end
  chad&lt;&lt;[].fill(32,0,80)
  chad&lt;&lt;[].fill(32,0,80)

  r10 = 10-10
  r11 = 11-1
  r12 = 12-1
  # Reward "bad" input characters with all-row multi-punch.
  # hash = Hash.new( [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11] )
  #
  #   OR
  #
  # Reward "bad" input characters by letting Ruby puke. (Jam the machine.)
  hash = Hash.new
  '0123456789-&'.unpack('C*').each_with_index do|c,i| hash[c]=[i] end
  ' ABCDEFGHI'.unpack('C*').each_with_index do|c,i| hash[c]=[i,r12] end
  ' JKLMNOPQR'.unpack('C*').each_with_index do|c,i| hash[c]=[i,r11] end
  ' /STUVWXYZ'.unpack('C*').each_with_index do|c,i| hash[c]=[i,r10] end
  '  :#@\'="'.unpack('C*').each_with_index do|c,i| hash[c]=[i,8] end
  '  [.&lt;(+|'.unpack('C*').each_with_index do|c,i| hash[c]=[i,8,r12] end
  '  ]$*);^'.unpack('C*').each_with_index do|c,i| hash[c]=[i,8,r11] end
  '  \,%_&gt;?'.unpack('C*').each_with_index do|c,i| hash[c]=[i,8,r10] end
  ' abcdefghi'.unpack('C*').each_with_index do|c,i| hash[c]=[i,r12,r10] end
  ' jklmnopqr'.unpack('C*').each_with_index do|c,i| hash[c]=[i,r11,r12] end
  '  stuvwxyz'.unpack('C*').each_with_index do|c,i| hash[c]=[i,r10,r11] end
  hash[32] = []              # fix space

  hole = 215
  line.slice(0,80).each_with_index do |c, index|
    hash[c].each do |row| chad[row][index] = hole end
  end

  puts '    %s' % ('_'*81)
  puts '   /%-80s |' % line.pack('C*')
  puts '  / %s |' % chad[11].pack('C*')
  puts ' /  %s |' % chad[10].pack('C*')
  (0..9).each do |i|
    puts '|   %s |' % chad[i].pack('C*')
  end
  puts "|%s|" % ('_'*84)
end
#        1         2         3         4         5         6         7         8
#2345678901234567890123456789012345678901234567890123456789012345678901234567890

ARGF.each do |line|
  punch029(line.chomp.unpack('C*'))
end