[php] =?iso-8859-1?Q?Re:_=5Bphp=5D_Eingabe_=FCberpr=FCfen?=

[php] =?iso-8859-1?Q?Re:_=5Bphp=5D_Eingabe_=FCberpr=FCfen?=

Egon Schmid eschmid_(at)
Mon, 22 Feb 1999 21:44:09 +0100 (MET)

PHP's und Apache's regex Bibliothek wurde von Henry Spencer geschrieben.
Es scheint eine Neue von Henry zu geben. Henry und Rasmus kennen sich
natürlich, sie sind beide in Toronto zu Hause.


List:     php-dev
Subject:  [PHP-DEV] Re: New regex lib? (fwd)
From:     Rasmus Lerdorf <rasmus_(at)>
Date:     1999-01-18 16:37:23
[Download message body RAW]

Guys, for PHP4 (and Apache2) we should probably look into using Henry's
new regex library.

---------- Forwarded message ----------
Date: Mon, 18 Jan 1999 11:35:05 -0500 (EST)
From: Henry Spencer <henry_(at)>
To: Rasmus Lerdorf <rasmus_(at)>
Subject: [PHP-DEV] Re: New regex lib?

Sorry for slow response...  Life has been exciting, not to mention
unpleasant, for the last few days.

> Anyway, I am just wondering what the state of your regex library rewrite
> is.  I seem to recall you mentioning somewhere that you were doing a
> complete rewrite...

Indeed so, and it has about reached the point of being shippable; I just
have not done the packaging yet.  It's shipping with Tcl/Tk's 8.1 beta
release, but I need to spend a bit of time putting together a standalone
version -- currently it relies on the Tcl 8.1 environment.  I hope to do
that in the next few weeks. 

To sum up in a sentence or two...  It has substantial new functionality,
including most of the Perl extensions (although a few of them are not done
quite the same way).  It can handle large character sets, although as yet
only in fixed-width encodings.  Performance is not yet sparkling but is
now decent, unlike my old alpha-release code that shipped with 4.4.  A
simple test set puts Tcl 8.1 regex performance roughly on par -- some
things faster, some slower -- with 8.0 (essentially my original 1986
regexp package), which is noteworthy when you consider that 8.0 had 8-bit
characters and 8.1 is using Unicode. 

                                                          Henry Spencer

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