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From: | Paul Eggert |
Subject: | bug#32194: [PATCH] Use Gnulib regex for lib-src |
Date: | Tue, 31 Jul 2018 17:59:48 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
On 07/31/2018 05:29 PM, Noam Postavsky wrote:
Is it justified to drop the DEBUG code? Couldn't it still be useful if we want to debug regex engine (and we're not assuming it has/will always have 0 bugs, right)?
Yes, because the DEBUG code doesn't work now, in master, and hasn't worked for years. Perhaps someday someone will want to debug the Emacs regex engine; when they do, they will likely want debugging scaffolding oriented to whatever problem they're facing, instead of what's in Emacs now.
Although the glibc/gnulib regex code has debugging that does work, it is quite different (that is, it's already gone through the process mentioned above).
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