Re: How to use \Q \E in GREP in a case-insensitive way?

[Paolo Bonzini]

On 08/25/2010 05:02 PM, Stormy wrote:
> however, when I try to make grep match in a case-insensitive way,
> using -i flag there are no matches, here's an example:
>
> sh-3.2# echo "TeST" | grep -P '\QTeST\E'   ==>  Match, expected TeST
> sh-3.2# echo "TeST" | grep -iP '\Qtest\E'  ==>  No match, UNEXPECTED
>
> I would expect the last example to match, since the -i flag was
> passed.  I rather stay with grep than to switch to perl or parsing
> the large files manually.

I think this is unexpected behavior of PCRE, not grep.

Paolo