Thanks Andrei,
we truly appreciate it...i will definitely put it to use...
--
BigDog
On Sat, 2003-06-28 at 18:28, Andrei Zmievski wrote:
> Some news on PCRE front:
>
> 1. I've upgraded the bundled PCRE library to version 4.3 which has some
> interesting new features.
>
> 2. I added new parameter to preg_match* functions that can be used to
> specify the starting offset of the subject string to start matching
> from. The offset can be positive or negative, like for substr().
>
> 3. Also implemented support for named subpatterns (introduced with PCRE
> 4.3). This means you can do something like:
>
> <?
> preg_match('!(\d+)(?P<ahh>\.\d+)?!', 'ab 55.5 bb', $match);
> var_dump($match);
> ?>
>
> With the result being:
>
> array(4) {
> [0]=>
> string(4) "55.5"
> [1]=>
> string(2) "55"
> ["ahh"]=>
> string(2) ".5"
> [2]=>
> string(2) ".5"
> }
>
> Note that the named subpattern is also available under a positional
> numeric key, as before. What this means for backwards compatibility
> is that you should not do count($match) anymore to obtain the number
> of captured subpatterns or number of matches. For latter, use the
> return value of preg_match* functions, and for former, you should
> already know how many subpatterns you have from your regexp.
>
> 4. You can use \Q..\E to ignore regexp metacharacters in the pattern.
> For example:
>
> !\w+\Q.$.\E$!
>
> Will match one or more word characters, followed by literals .$. and
> anchored at the end of the string.
>
> 5. You can use possesive quantifiers, similar to Java's regexps. These
> are:
>
> ?+, *+, ++, and {,}+
>
> See PCRE docs or Java docs for more information.
>
> 6. There is now support for recursive calls to individual subpatterns.
> That is, instead of using (?R) you can use (?1), (?2) and so on. Or
> use named subpatterns: (?P>foo) will refer recursively to named
> subpattern 'foo'. Once again see PCRE docs for more info.
>
> 7. There is a new feature by the name of "callouts", but there is not
> interface to it yet. Basically, it allows user to receive control at
> a specified matching point in the pattern and inspect, continue, or
> interrupt the matching. I'm not sure how useful this would be for PHP
> users as the information provided is fairly low-level. See
> 'pcrecallout' PCRE man page for more info. If there are enough
> interested people, I will add support for it.
>
> That's about it for now.
>
> -Andrei
>
> "What's a polar bear?"
> "A rectangular bear after a coordinate transform."
> -- Bill White ([EMAIL PROTECTED])
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