GNU bug report logs - #73484
31.0.50; Abolishing etags-regen-file-extensions

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From: Francesco Potortì <pot <at> gnu.org>
To: Dmitry Gutov <dmitry <at> gutov.dev>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 73484 <at> debbugs.gnu.org, spwhitton <at> spwhitton.name
Subject: bug#73484: 31.0.50; Abolishing etags-regen-file-extensions
Date: Thu, 10 Oct 2024 03:39:47 +0200

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

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