Re: Ruby pack - TypeError: can't convert String into Integer

[Frederick Cheung]

On Monday, February 25, 2013 6:47:20 PM UTC, onali...@gmail.com wrote:

Other confusion is, it is working fine with ruby 1.8.7, not with ruby 1.9.3, here is the code
 

irb(main):003:0> length=nil
=> nil
irb(main):004:0> token_string ||= ["A".."Z","a".."z","0".."9"].collect { |r| r.to_a }.join + %q(!$:*)
=> "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!$:*"
irb(main):005:0> token =  (0..(length ? length : 60)).collect { token_string[rand( token_string.size)]}.pack("c*")
TypeError: can't convert String into Integer
    from (irb):5:in `pack'
    from (irb):5
    from /home/appandya/.rvm/rubies/ruby-1.9.3-p374/bin/irb:13:in `<main>'
irb(main):006:0>

I've no idea what you're trying to do here, but the underlying cause is that on ruby 1.8.7:

'123'[0] #=> 49, the byte value of the first character

but on ruby 1.9.3

'123'[0] #=> '1', a string of length 1 beginning at the specified offset

Fred