> Hi Sawada-san,
>
>> In my Mac environment where non-Exuberant ctags and emacs 28.2 are
>> installed, the generated etags file cannot be loaded by emacs due to
>> file format error. The generated TAGS file is:
>>
>> % head -10 TAGS
>>
>> ) /
>> sizeof(BlockNumber)sizeof(BlockNumber)117,3750
>> my
>> @newa newa395,10443
>>
>> variadic array[1,2]:array[1,2]56,1803
>>
>> variadic array[]::inarray[]::i72,2331
>>
>> variadic array[array64,2111
>>
>> variadic array[array68,2222
>>
>> variadic array[array76,2441
>> (2 * (2 53,1353
>> my $fn fn387,10147
>> startblock 101,4876
>>
>> Since the etags files consist of multiple sections[1] we cannot sort
>> the generated etags file. With the attached patch, make_etags (with
>> non-Exuberant ctags) generates a correct format etags file and it
>> works:
>>
>> % head -10 TAGS
>>
>> /Users/masahiko/pgsql/source/postgresql/GNUmakefile,1187
>> subdir 7,56
>> top_builddir 8,65
>> docs:docs13,167
>> world-contrib-recurse:world-contrib-recurse19,273
>> world-bin-contrib-recurse:world-bin-contrib-recurse24,394
>> html man:html man26,444
>> install-docs:install-docs29,474
>> install-world-contrib-recurse:install-world-contrib-recurse35,604
>>
>> BTW regarding the following comment, as far as I can read the
>> Wikipedia page for ctags[1], Exuberant ctags file doesn't have a
>> header section.
>>
>> # Exuberant tags has a header that we cannot sort in with the other entries
>> # so we skip the sort step
>> # Why are we sorting this? I guess some tag implementation need this,
>> # particularly for append mode. bjm 2012-02-24
>> if [ ! "$IS_EXUBERANT" ]
>>
>> Instead, the page says that sorting non-Exuberant tags file allows for
>> faster searching on of the tags file. I've fixed the comment
>> accordingly too.
>>
>> Regards,
>>
>> [1] https://en.wikipedia.org/wiki/Ctags#Etags_2
>
> Sorry for late reply and thanks for the patch!
>
> I have confirmed the error with make_etags on my Mac (emacs 28.1 +
> non-Exuberant ctags), and the error is fixed by your patch. Also I
> have confirmed the patch does not affect make_etags on my Linux (emacs
> 26.3 + Exuberant ctags).
>
> I will push the fix to REL_15_STABLE and master branch if there's no
> objection.
Fix pushded. Thanks!
Best reagards,
--
Tatsuo Ishii
SRA OSS LLC
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp
