# More preg_match_* control - Thread: https://externals.io/message/2848 - Original archive: https://news-web.php.net/php.internals/2848 - Started by Andrei Zmievski on 2003-06-26T17:12:44+00:00 - Messages: 7 - Reply by email to internals@lists.php.net - More for agents: search with https://externals.io/search.md?q={query} · JSON API at https://externals.io/api · documentation at https://externals.io/llms.txt --- ## #2848 — Andrei Zmievski — 2003-06-26T17:12:44+00:00 URL: https://externals.io/message/2848#2848 Hi, Apparently a few people are doing a lot of bioinformatics data sifting with PHP and one of them asked me if it would be possible to add a parameter to preg_match_* functions to indicate the starting offset for the search. I think it's a good idea, and having looked at the current implementation, I think this parameter can just come after the 'flags' one. It won't be used that often, so specifying 0 for flags in that case is okay. Any thoughts or objections? -Andrei * Entropy isn't what it used to be. * --- ## #2849 — Sebastian Bergmann — 2003-06-26T17:19:44+00:00 URL: https://externals.io/message/2848#2849 · In reply to: #2848 Andrei Zmievski wrote: > Any thoughts or objections? On a sidenote, the bundled PCRE library is a bit outdated (I have 4.x on my GENTOO laptop, for instance). Can ext/pcre be built against a system library rather than the bundled one? Last time I tried it failed. -- Sebastian Bergmann http://sebastian-bergmann.de/ http://phpOpenTracker.de/ http://www.professionelle-softwareentwicklung-mit-php5.de/ --- ## #2850 — Andrei Zmievski — 2003-06-26T17:25:16+00:00 URL: https://externals.io/message/2848#2850 > On a sidenote, the bundled PCRE library is a bit outdated (I have 4.x > on my GENTOO laptop, for instance). Yeah, but there is nothing that's changed much. I suppose we can upgrade. What are your thoughts on my proposal for the new parameter? > Can ext/pcre be built against a system library rather than the > bundled one? Last time I tried it failed. Not sure. I haven't tried it in a loooong time. -Andrei * The future has arrived, it's just not evenly distributed. -W. Gibson * --- ## #2851 — Sebastian Bergmann — 2003-06-26T17:46:31+00:00 URL: https://externals.io/message/2848#2851 · In reply to: #2850 Andrei Zmievski wrote: > Not sure. I haven't tried it in a loooong time. I just compiled HEAD with --with-pcre-regex=/usr where I have PCRE 4.2 installed. The build works fine, but `phpinfo()` shows PCRE Library Version 3.9 02-Jan-2002 -- Sebastian Bergmann http://sebastian-bergmann.de/ http://phpOpenTracker.de/ http://www.professionelle-softwareentwicklung-mit-php5.de/ --- ## #2867 — Andrei Zmievski — 2003-06-26T23:06:22+00:00 URL: https://externals.io/message/2848#2867 > I just compiled HEAD with > > --with-pcre-regex=/usr > > where I have PCRE 4.2 installed. > > The build works fine, but `phpinfo()` shows > > PCRE Library Version 3.9 02-Jan-2002 Hmm, I just did the same thing (--with-pcre-regex=/usr/local) and got the 4.3 library that I installed. Anyway, seems that 4.3 has some juicy bits like \Q and \E escapes, possesive quantifiers, callouts, and named subpatterns. I'll start working on integrating those. -Andrei "I fear more harm from everybody thinking alike than from some people thinking otherwise." -- Charles G. Bolte --- ## #2879 — Andi Gutmans — 2003-06-27T08:01:05+00:00 URL: https://externals.io/message/2848#2879 · In reply to: #2848 I wonder if these people have a summary of things they ideally need. Then we could have ext/bioinformatics. Who knows, it might bring PHP to new places. Anyway, I'm neutral about the parameter change. Will it be a default parameter? Andi At 01:12 PM 26/6/2003 -0400, Andrei Zmievski wrote: >Hi, > >Apparently a few people are doing a lot of bioinformatics data sifting >with PHP and one of them asked me if it would be possible to add a >parameter to preg_match_* functions to indicate the starting offset for >the search. I think it's a good idea, and having looked at the current >implementation, I think this parameter can just come after the 'flags' >one. It won't be used that often, so specifying 0 for flags in that case >is okay. Any thoughts or objections? > >-Andrei >* Entropy isn't what it used to be. * --- ## #2887 — Andrei Zmievski — 2003-06-27T11:58:08+00:00 URL: https://externals.io/message/2848#2887 · In reply to: #2879 > I wonder if these people have a summary of things they ideally need. Then > we could have ext/bioinformatics. Who knows, it might bring PHP to new > places. > Anyway, I'm neutral about the parameter change. Will it be a default > parameter? Yes, it would. Defaulting to 0 of course. -Andrei ever seen that movie? The Matrix? with those green lines of flying text? *THAT'S* Perl