On Thu Apr  4 08:17:13 EDT 2013, begnoc@gmail.com wrote:

> Cool.
>
>
> Here's a script i use to generate case
> insensitive regexes. It turns
>
> FooBar
>
> into
>
> [Ff][Oo][Oo][Bb][Aa][Rr]

see also rune(1), http://9atom.org/magic/man2html/1/rune
which generalizes this idea to all of unicode (rune/case),
and also to diacritical and other markers (rune/fold; rune/unfold).
for the latter also see grep(1)'s -I flag, http://9atom.org/magic/man2html/1/grep

- erik