use bytes and regular expressions

[karl williamson <public@khwilliamson.com>]

I'm confused about what should happen when compiling and executing re's 
when "use bytes" is in effect.


I think the only thing that re's currently do with this pragma, is 
during pattern matching: even if the string being matched is in utf8, it 
is considered as just straight bytes.

The problem I see is that the pattern can be in utf8, since I don't see 
any tests during compilation to prevent that from happening, and I don't 
know what should or shouldn't be done.

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Follow-Ups from:

Rafael Garcia-Suarez <rgarciasuarez@gmail.com>

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