Re: Infinite loop in bash glob matching

[Zoltán Herczeg]

>I read this as saying that it's a requirement on the application to ensure
>that character classes are correctly formed, and it's unspecified behavior
>if they're not.
>
>So you're right: people should not count on shells treating improperly-
>formed character classes as literal characters.

Thank you for the explanation.

I think throwing an error would be better than an undefined behaviour. Bash 
throws error for solo parenthesis, a similar technique could be used here.

Regards,
Zoltan