[K12OSN] PHP regular expression question.

[RiE]

On 3/3/06, Toshio Kuratomi <toshio at tiki-lounge.com> wrote:

> If what you're trying to accomplish is getting rid of any incomplete
> tags at the end of the string, a regex like this ought to work to detect
> the situation::
>   /<[^>]*$/
> In order to extract a fixed up string you'll want something like this::
>   if (preg_match('/(.*)<[^>]*$/', $string, $matches) {
>     $newstring = $matches[1] . '...';
>   } else {
>     $newstring = $string;
>   }
>
> This does not take care of the case where a tag that requires closing is
> left open at the end of the string (ie: "<a_href=blah.txt>Blah</a> ...
> <a_href=foo.txt>foo"; "<a_href=blah.txt>Blah</a> ... <table>Break me";
> etc)  Solving that requires that your php script knows a little bit
> about the proper structure of html.
>
I wan't thinking about the unmatched tags(but I should have).   I'm
trying to take an RSS feed, grab the summary and display just a
portion of it.  some of the summaries are the entire content, I was
trying to grab just 300 characters or so. One of the test feeds
happened to have a link right at 300 that was being chopped in two..  
I don't care about links or image in my summary, maybe I'll just drop
all <..> tags, plus one on the end if it's truncated <..

Thanks, I'll play around with it later.  I wasn't sure about the  
/<[^>]*$/   part..

Roger