Histogram of characters used in Google Application Passwords

gistfile1.rb

def histogram(message)
    message.each_char.reduce(Hash.new(0)) { |h, k| h[k] += 1; h}
end

def graph_histogram(h)
   h.to_a.
     sort_by{|kv| kv[1]*-1}.
     map{|a| "#{a[0]} |#{('+'*a[1])[0..120]}#{a[1].to_s}\n"}.
     join
end

message = "bejkpcfcpofjctvlybwqvdpkwebavtbyxngwbrkobhrtribviwprprjpdootlzeykwypskoapaovadeenabiajviezaivmtyowwmmjkaqcretlgtlimiecizhempplsuhsjfwgsapyupyshyiduhcecnffzxvwidkufekanlarlroxqloemogsisdpsdvqpbvkefysmbnorzttjwhvxqchvjtvqzwcgilyclijgrttfcjhwjptnvnjoqrodvvibkiwmrddfxgolfnaijorrcvertiuyssxsuetdfbatrwwsazcstsjexttfigxvsdyzqjhpeynxbkaazpnekjemcngwtiazngnlaevvdehccbdzasqpmwncwspxktrbqdazecvpqyowjvaxlgpwzkkvnxthzdrdsdmdtzdeqffjznfxxbfjtewindravsxobrriyfxnorzfvovwkfxnrxrqcggdqpsgumzpi"

puts graph_histogram( histogram(message) )

Outputs:

v |++++++++++++++++++++++++++26
e |++++++++++++++++++++++++24
r |++++++++++++++++++++++++24
t |++++++++++++++++++++++++24
p |+++++++++++++++++++++++23
w |++++++++++++++++++++++22
i |++++++++++++++++++++++22
d |++++++++++++++++++++++22
a |++++++++++++++++++++++22
s |+++++++++++++++++++++21
f |+++++++++++++++++++19
n |+++++++++++++++++++19
o |+++++++++++++++++++19
j |+++++++++++++++++++19
c |+++++++++++++++++++19
x |++++++++++++++++++18
z |++++++++++++++++++18
b |+++++++++++++++++17
k |++++++++++++++++16
y |+++++++++++++++15
g |++++++++++++++14
q |++++++++++++++14
l |+++++++++++++13
m |++++++++++++12
h |+++++++++++11
u |+++++++7