From: James Gray <james@...>
Date: 2009-04-08T23:47:54+09:00
Subject: Re: Ruby 1.9.1 - invalid multibyte escape: //  (RegexpError)

On Apr 8, 2009, at 3:03 AM, Brian Candler wrote:

> * What about string literals which include escape sequences like \u?
> This seems to override the source encoding rule.

I plan to cover this in the next article.

> * What encoding is chosen for regexp literals? (Seems to be different
> rules to string literals). What about string literals which include
> #{interpolation}? What about regexp literals which include
> #{interpolation}?

I'm going to cover this too.

> * I think it will be worth explaining what you need to do to handle
> binary data (using "rb" and "wb", the ASCII-8BIT encoding, how to set
> external encoding for STDIN, the fact that read() and gets() return
> different encodings for the same data...)

Planned for the next article.

> * What actually happens if you use string operations on two strings  
> with
> different encodings? e.g. str1 == str2, str1 + str2, str1 << str2?  
> What
> about indexing a hash with two strings which are identical byte
> sequences but different encodings?

I feel a gave a much better strategy that prevents you from worrying  
about such things.  However, that article did link to a detailed  
explanation.

James Edward Gray II