{newb} Each statements

ruby-talk
1

ven.rb:27:in `encrypt': undefined method `-' for "a":String

(NoMethodError)

from ven.rb:27:in `map'
from ven.rb:27:in `encrypt'
from ven.rb:38
still

############33here is my code complete its some cipher

def decrypt(data)
              ndata=data.clone
              srand(5000)
              a = ndata.size-1 # control loop
              while a>-1
                      temp=ndata[a]
                      temp-=rand(10)
                      temp= 26-((temp.abs)%26) if temp<0
                      temp= temp%26 if temp>-1
                      ndata[a]=temp+97

                      a-=1

              end
              return ndata

end

def encrypt(data)
  ndata=data.dup
  a = ndata.size-1
  srand(5000)
  ndata = ndata.split(//).map{ |c| ((c-97)+rand(10))%26

}.join

At this point 'c' is a string: split(//) returns an array of strings.
String does not have a '-' method, so you should first convert to
integer thus:

  ndata = ndata.split(//).map{ |c| ((c.to_i-97)+rand(10))%26
}.join

And possibly convert back into chars:

  ndata = ndata.split(//).map{ |c| (((c.to_i-97)+rand(10))%26).chr
}.join

              #end # this code down here works but its to messy
             # while a>-1
               # ndata[a]=

((ndata[a]-97)+rand(10))%26

                 # a-=1
              #end
              return ndata
end
it=String.new("abcdefghijklmnop")

print decrypt(encrypt(it))
###################
and i get the error above with the new added code. Sorry to be such a

pain.

···

Becker