From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.bugs Subject: bug#31138: Native json slower than json.el Date: Wed, 24 Apr 2019 19:46:16 +0300 Message-ID: <8f3318e9-25bd-c7af-20dd-ed78d2a92efd@yandex.ru> References: <87sh806xwa.fsf@chapu.is> <831s22gcci.fsf@gnu.org> <83y349gasn.fsf@gnu.org> <83d0lfag4x.fsf@gnu.org> <5cf45a21-65c3-67ee-f123-be83a6ee7c99@yandex.ru> <83a7gjaen6.fsf@gnu.org> <83ftqa8qsg.fsf@gnu.org> <83muki6y6r.fsf@gnu.org> <4b8c6799-e845-768b-749c-f2a883ab89f8@yandex.ru> <83h8aq6v6a.fsf@gnu.org> <834l6q6ozn.fsf@gnu.org> <83zhoi59ao.fsf@gnu.org> <83wojm57sl.fsf@gnu.org> <83ftq96azk.fsf@gnu.org> <83wojk534g.fsf@gnu.org> <6308ceff-479b-2ce7-2072-41e683978c7c@yandex.ru> <83h8ao4vl0.fsf@gnu.org> <835zr32x2m.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; 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Wed, 24 Apr 2019 09:46:18 -0700 (PDT) In-Reply-To: <835zr32x2m.fsf@gnu.org> Content-Language: en-US X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:158189 Archived-At: On 24.04.2019 19:21, Eli Zaretskii wrote: > Please point me to examples of this, I don't think I understand what > you have in mind. Buffers with output from a process. In this example, the process is a network connection. Not sure it applies, though. Since output arrives piece-by-piece, maybe it gets decoded with *-string routines (mm-decode-string uses that). >>> We could perhaps try >>> a similar optimization for UTF-8 instead of just ASCII. >> >> I think so. > > Turns out we already do, I just missed that. OK. > What does libjansson do if it receives strings with bytes it cannot > interpret? Like raw bytes or UTF-8 sequences whose length is more > than 4 bytes? One could test that directly, but its API docs list different kinds of errors, including: json_error_invalid_utf8 json_error_null_character json_error_null_byte_in_key And we check for error status in functions that use the encoded values. Reading the sources, there are several places where the first error is signaled.