On Nov 28, Michael Fowler said:
>On Wed, Nov 28, 2001 at 11:56:30AM -0800, Ahmed Moustafa Ibrahim Ahmed wrote:
>> You don't you need the line beginning and line termination in
>> s/(^|[^ ]) ([^ ]|$)/$1$2/g;
>
>Given a version of Perl 5.6 or greater, then the substitution could become:
>
> s/(?<! ) (?! )//g;
That works in 5.005 too. But I reiterate this approach ends up being
horrible on chunks of whitespace. You might hope Perl is smart enough to
do something like:
"abc def ghi jkl mno"
^
|
failed here, so
jump to next chunk
of whitespace
Too bad, Perl doesn't optimize this regex that way. It tries matching at
EACH space in that " " chunk, which is poor form. :(
--
Jeff "japhy" Pinyan [EMAIL PROTECTED] http://www.pobox.com/~japhy/
RPI Acacia brother #734 http://www.perlmonks.org/ http://www.cpan.org/
** Look for "Regular Expressions in Perl" published by Manning, in 2002 **
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
