Re: Extension proposal

+1 On 10/28/07, Paul Chandler <pestilence669@users.sourceforge.net> wrote: > Antony, > > Do you need any other reason than "it's like Python?" :) > > First, there's the memory conservation. You don't need to pre-allocate an > array. Second, it's an objectified range iterator / generator. This means > you can combine it with SPL and even your own custom iterators. > > For example: here's some, arguably nasty, code: > <php? > // filters odd values, after squaring values 1 .. 20 > // the filters are not included, but are four-line > // descendents of FilterIterator > foreach ( > new OddOnlyFilter(new SquareFilter(xrange(1, 20))) as $i > ) // do something > > // ...and... // > > $x = new AppendIterator; > $x->append(xrange(1, 7)); > $x->append(xrange(929, 429, -100)); > > foreach ($x as $i) // do something > ?> > > My examples are bad, I apologize. The potential is difficult to convey > without a complicated real-world example. The whole reason for the extension > is for a 3x+ improvement over my reference implementation. > > It's not revolutionary or anything, but offers a little more flexibility and > brings something to PHP that's already in other languages. > > On 10/26/07 12:19 AM, in article 472194F0.4070401@daylessday.org, "Antony > Dovgal" <tony@daylessday.org> wrote: > > > On 26.10.2007 03:17, Paul Chandler wrote: > >> Hello, > >> > >> I have a very simple extension on SourceForge that I'd like to release with > >> PECL. In a nutshell, it's an iterator-based replacement for range(), like > >> Python's. It's intended use is within foreach loops. I don't think > >> it'll be > >> a high-demand extension, but Python converts might appreciate it. > >> > >> <?php > >> foreach (range(0, 1000000) as $i) // do something > >> > >> // vs. // > >> > >> foreach (xrange(0, 1000000) as $i) // do something > >> ?> > > > > What's the advantage of it? (except that it's like Python). > > Also I don't see any differences from range() in the example code given above. > > -- > PECL development discussion Mailing List (http://pecl.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- ~ Pedram Nimreezi