From: Zachary Holt <z@...>
Date: 2007-06-15T03:27:45+09:00
Subject: Re: Characters and strings oddness

On Jun 14, 2007, at 11:01 AM, Stefan Kruger wrote:
> Hi there Rubyists -
Hi.


> irb(main):002:0> string[0] == 't'
string[0].chr == 't'
or
string[0] == ?t


> delim = "\""
> string = delim
> if line.gsub!(/^.*?(\")/, '')
>  (0..line.length).each do |i|
>    string << line[i]
>    break if i>0 && (line[i, 1] == delim) && (line[i-1, 1] != '\\')
>  end
> end
>
> TypeError: can't convert nil into String
>
> method <<    in test.rb at line 9
> at top level    in test.rb at line 9
> at top level    in test.rb at line 8
>
> I'm at a loss to understand why that gives an error.
Try 0...line.length (three dots, not two).  You're indexing past the  
end of the string.