Hi, Damian, CC'ing you only for information :)
On Sun, Sep 01, 2013 at 10:32:31PM +0200, Salvatore Bonaccorso wrote: > Package: libregexp-grammars-perl > Version: 1.028-1 > Severity: serious > Tags: upstream > Justification: maintainer decision, unfit for release with perl 5.18.1; > incompatible > > This is a blocking bug to prevent further migration of > libregexp-grammars-perl into testing until some incompatibility > problems with Perl 5.18 are solved upstream: > > ,---- [ lib/Regexp/Grammars.pm ] > | Warning: Regexp::Grammars is currently unsupported under Perl 5.18. > | > | Perl 5.18 changed how 'qr' constant overloadings are parsed and the > | scope in which they are subsequently compiled. This change currently > | make it impossible to reliably create 'qr' overloadings that inject > | code blocks into a regex, as it prevents the overloaded regexes from > | compiling properly in many cases, even with an explicit 'use re > | "eval"' in scope. > | > | These problems have been reported, and the brave volunteers of P5P are > | currently working on fixes. However, these will not be available until > | at least 5.18.2. > | > | Because Regexp::Grammars relies on 'qr' overloads to inject code blocks > | into regexes, the module is curently not compatible with Perl 5.18. It > | may continue to work in some limited cases, but is no longer reliable. > | > | At present, if you rely on Regexp::Grammars for your parsing needs, your > | alternatives are either not to upgrade to Perl 5.18, to livce with the > | problems until they are resolved (in Perl 5.18.2, we hope), or else to > | consider switching to another parsing system, such as Marpa. > | > | We deeply regret that Regexp::Grammars cannot currently be maintained > | completelt due to these backwards-incompatible changes and bugs in > | Perl 5.18. > `---- I had the privilege to talk directly to Damian to aks about if it is worth keeping Regexp::Grammars. Basically I would suggest the following: As we have from the RT ticket, there is slowly progress, and possibly in some perl 5.18.x release it might be fixed the remaining problems, basically around say 95% of it should work already now again. I'm proposing the following: Keep Regexp::Grammars still in Debian unstable. The release-critical Bug prevents the package migrating to Debian Testing, so we will not ship libregexp-grammars-perl with a Debian release which has perl 5.18. The issues should be solved when working with Perl 5.20, which will be released next month. Once this happens, a new version of Regexp::Grammars will eventually be uploaded by Damian which changes the warning to mark explicitly only the broken 5.18 releases. Once we have Perl 5.20 in Debian libregexp-grammars-perl should be safe to distribute again together in Debian as packaged module. Thus in short: I'm in favour to keep the package for now with a RC bug open preventing the migration to testing. Regards, Salvatore -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
