From: James Edward Gray II <james@...>
Date: 2004-09-28T09:33:16+09:00
Subject: Re: {newb} Each statements

On Sep 27, 2004, at 7:23 PM, STEPHEN BECKER I V wrote:

> 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

split() takes one String and makes many out of it.  You are trying to 
use those Strings as characters.  See comment below...

> ############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 
> #suggested

ndata = ndata.split(//).map{ |c| ((c[0]-97)+rand(10))%26 }.join

>  code
>
>                #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))
> ###################

Hope that helps.

James Edward Gray II