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In-Reply-To: <877cagivmk.fsf@tucano.isti.cnr.it> (message from Francesco =?UTF-8?Q?Potort=C3=AC?= on Thu, 10 Oct 2024 03:39:47 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:293246 Archived-At: > From: Francesco Potort́ > Date: Thu, 10 Oct 2024 03:39:47 +0200 > Cc: 73484@debbugs.gnu.org, > spwhitton@spwhitton.name, > Eli Zaretskii > > I have just written: > >There are two O^2 test in the number of tags in C/C++ files which depend on the two options "no-line-directive" and "no-duplicates". Both options are usable to disable those checks and both are off by default because they help producing a more sane tags file and have no practical impact in most cases. Both are there because, in principle, they cause significant slowdown in huge tags files. > > However, --no-line-directive exhibits the O^2 behaviour inthe number of tags only for languages with the "metafile" property, currently only yacc files. Unless you have a significant number of yacc files, the impact is O^1 in the number of tag candidates. And --no-duplicates only matters when creating a ctags file. > > Maybe you could give a try and check whether --no-line-directives has any impact I already did that: the effect is null and void. Which is not a surprise, since there are only 3 Yacc files in this tree.