Hi, I read in your other mail that you are retired, but your words suggest that noone other working on PCRE, which is a surpise for me, as PCRE is an excellent piece of software. I hope you can find someone who would continue PCRE development.
Answering your qestions, yes, it would require a complete redesign of the matching part (the parser probably don't need to be touched), but it would probably worth it, since current JS engines can do pattern matching 5 or more times faster in JIT mode than in interpreted mode. For most patterns, only a few machine instructions are generated, and it can be much faster than executing those big switch()-es employed by any interpreters. SLJIT was written in C as well, but it can be compiled by a C++ compiler, which provides a great flexibility. Regards, Zoltan Philip Hazel <[email protected]> írta: >On Sun, 29 Aug 2010, Herczeg Zoltán wrote:> > > Have you ever considered adding JIT support for PCRE?> > No. I suspect it would require a complete redesign and rewrite of the> library (which is written in C, as I guess you already know). That won't> ever be done by me as I am now retired. I will continue to maintain PCRE > for a while, but I do not see myself doing any major development of any > kind, let along a radical re-write such as that.> > Would JIT support *really* give better performance? PCRE doesn't take > very long to compile a regex, and you have the advantage of discovering > any syntax errors before you start to try to match anything.> > Philip> > -- > Philip Hazel -- ## List details at http://lists.exim.org/mailman/listinfo/pcre-dev
