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http://bugs.exim.org/show_bug.cgi?id=1099 --- Comment #4 from Philip Hazel <[email protected]> 2011-03-25 16:01:18 --- On Fri, 25 Mar 2011, Pavel Kostromitinov wrote: > I understand that this is not an easy change - requiring some 'data injection' > inside pcre_exec(). > > I can probably try to implement it myself, after some research into its > internal workings, especially to where and how are back-referenced strings are > stored. Back references are to capturing subpatterns: they are stored exactly as they are returned to the user. They are identified in the compiled pattern only by number, not by name. This will make it very difficult for you. You will have to modify pcre_compile() to set up some references to some unused numbers as well as modifying pcre_exec() to handle these numbers. If you want to do this, start by looking at the function match_ref() in pcre_exec.c and the places where it is called. An alternative to this might be for you to use callouts. Take a look at "man pcrecallout" if you have not already done so. Philip -- Configure bugmail: http://bugs.exim.org/userprefs.cgi?tab=email -- ## List details at http://lists.exim.org/mailman/listinfo/pcre-dev
