Hi Zeev,

On Fri, Feb 27, 2015 at 2:48 AM, Zeev Suraski <z...@zend.com> wrote:

> You may have a point there.  As Francois said, he was in favor of allowing
> leading and trailing spaces.  I'll definitely reconsider.
>

If we consider existing code, leading/trailing spaces may need to be
allowed.
Without considering compatibility issues, leading/trailing spaces should be
validated or removed by user input validation/filter code in the first
place.

I think many users use "$" for the end of string data for regex, but it
includes
newline. To be precise, "\z" should be used for both PCRE and mbregex.

http://perldoc.perl.org/perlre.html

Trailing newline is invalid. Leading/trailing spaces may be considered as
the
same invalid data to be strict.

This is what I thought for this.
I don't have strong opinion.

Regards,

--
Yasuo Ohgaki
yohg...@ohgaki.net

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