From: Igor Munkin via Tarantool-patches <tarantool-patches@dev.tarantool.org> To: Sergey Kaplun <skaplun@tarantool.org> Cc: tarantool-patches@dev.tarantool.org Subject: Re: [Tarantool-patches] [PATCH v2 luajit 16/30] test: adapt PUC Lua test for %q in fmt for LuaJIT Date: Wed, 7 Apr 2021 00:37:04 +0300 [thread overview] Message-ID: <20210406213704.GL29703@tarantool.org> (raw) In-Reply-To: <YGW9nXJMdP9oHnXv@root> Sergey, On 01.04.21, Sergey Kaplun wrote: > Igor, > > Thanks for the review! > > On 31.03.21, Igor Munkin wrote: > > Sergey, > > <snipped> > > > > > string.format(): %q reversible. > > > See also https://luajit.org/extensions.html#lua52. > > > > > > In Lua 5.1 string.format() does not accept string values containing > > > embedded zeros, except as arguments to the '%q' option. > > > In Lua 5.2 '\0' is not handled differently from other > > > control chars in string.format('%q', ...). > > > See commit 7cc981c14067d4b0e774a6bfb0acfc2f5c911f0d > > > (string.format("%q", str) is now fully reversible > > > (from Lua 5.2).). > > > > Well, I honestly don't understand what is changed in *semantics*. I've > > tried the following command with Lua 5.2, Lua 5.1 and LuaJIT 2.0.5 as an > > interpreter being tested > > | <interp> -e 'print(string.format("%q", "\0"))' > > > > I understand the semantics of "%q", but was it just a bug in Lua 5.1? > > A bug with the test for it??? Well, I can remind you the bug with <tonumber> we fixed the last year. There might be no test for it though, but all in all it has not been fixed in Lua 5.1. > > > What does "fully reversible" mean in this context? This question is left unaddressed. > > > > I understand only the fact the behaviour differs and you reimplemented > > the test assertion according to Lua 5.2 testing suite. That's all. > > > > I found not a single word regarding this issue in Lua bugs[1] page, > > except invalid handling of \r[2]. Is there any issue/page with a more > > It looks unrelated to these changes. > > > verbose explanation what has been changed in 7cc981c? > > I just read these lines in Lua 5.1 reference manual :): > | This function does not accept string values containing embedded > | zeros, except as arguments to the q option. So what? This means literally nothing to me... BTW, I can pass such string to the function and it can yield any bullshit the developer wanted to. That's why we decided to comment such places in a clear and verbose way, didn't we? > > As for me, it is just new behaviour of Lua 5.2 -- patterns now accept > '\0' as a reqular character (see > 4541243355a299a9b75042d207feb87295872c3a (patterns now accept '\0' as a > regular character) from Lua repository). So, according to commit > 658ea8752b979102627e2fede7b7ddfbb67ba6c9 (no need to handle '\0' > differently from other control chars in format '%q')) from Lua > repository, this behaviour is excess. > > Also, it is mentioned here [2]. I see nothing regarding this change there. > <snipped> > > > > [1]: https://www.lua.org/bugs.html#5.1 > > [2]: https://www.lua.org/bugs.html#5.1-4 > > > > -- > > Best regards, > > IM > > [1]: https://www.lua.org/manual/5.1/manual.html#pdf-string.format > [2]: https://www.lua.org/manual/5.2/manual.html#8.2 > > -- > Best regards, > Sergey Kaplun -- Best regards, IM
next prev parent reply other threads:[~2021-04-06 21:37 UTC|newest] Thread overview: 153+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-26 7:42 [Tarantool-patches] [PATCH v2 luajit 00/30] Adapt PUC-Rio Lua 5.1 test suite Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 01/30] test: add " Sergey Kaplun via Tarantool-patches 2021-03-26 10:14 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:13 ` Igor Munkin via Tarantool-patches 2021-04-01 8:11 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 02/30] test: add compiling for C libs from PUC-Rio-Lua5.1 Sergey Kaplun via Tarantool-patches 2021-03-26 11:01 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:14 ` Igor Munkin via Tarantool-patches 2021-04-01 8:21 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 03/30] test: adapt Lua 5.1 suite for out-of-source build Sergey Kaplun via Tarantool-patches 2021-03-26 11:07 ` Sergey Ostanevich via Tarantool-patches 2021-03-26 14:25 ` Sergey Kaplun via Tarantool-patches 2021-03-31 22:58 ` Igor Munkin via Tarantool-patches 2021-04-01 8:43 ` Sergey Kaplun via Tarantool-patches 2021-03-31 22:58 ` Igor Munkin via Tarantool-patches 2021-04-01 8:40 ` Sergey Kaplun via Tarantool-patches 2021-04-06 16:56 ` Igor Munkin via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 04/30] test: remove quotes in progname from <main.lua> Sergey Kaplun via Tarantool-patches 2021-03-26 11:12 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 22:58 ` Igor Munkin via Tarantool-patches 2021-04-01 8:50 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 05/30] test: adapt arg availability test from Lua suite Sergey Kaplun via Tarantool-patches 2021-03-26 11:22 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 22:58 ` Igor Munkin via Tarantool-patches 2021-04-01 9:37 ` Sergey Kaplun via Tarantool-patches 2021-04-06 15:24 ` Igor Munkin via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 06/30] test: disable PUC Lua tests confused by -v output Sergey Kaplun via Tarantool-patches 2021-03-26 11:26 ` Sergey Ostanevich via Tarantool-patches 2021-03-26 14:31 ` Sergey Kaplun via Tarantool-patches 2021-03-31 22:58 ` Igor Munkin via Tarantool-patches 2021-04-01 9:56 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 07/30] test: disable Lua tests for bytecode with header Sergey Kaplun via Tarantool-patches 2021-03-26 11:30 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 22:59 ` Igor Munkin via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 08/30] test: disable JIT for GC step counting tests Sergey Kaplun via Tarantool-patches 2021-03-26 11:32 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:14 ` Igor Munkin via Tarantool-patches 2021-04-01 10:10 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 09/30] test: disable Lua suite tests for line hook Sergey Kaplun via Tarantool-patches 2021-03-26 11:35 ` Sergey Ostanevich via Tarantool-patches 2021-03-26 14:33 ` Sergey Kaplun via Tarantool-patches 2021-03-31 22:59 ` Igor Munkin via Tarantool-patches 2021-04-01 10:06 ` Sergey Kaplun via Tarantool-patches 2021-04-06 19:45 ` Igor Munkin via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 10/30] test: adapt test for debug.setlocal in Lua suite Sergey Kaplun via Tarantool-patches 2021-03-26 11:44 ` Sergey Ostanevich via Tarantool-patches 2021-03-26 14:45 ` Sergey Kaplun via Tarantool-patches 2021-03-30 22:14 ` Igor Munkin via Tarantool-patches 2021-04-01 10:16 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 11/30] test: adapt getlocal PUC test for vararg func Sergey Kaplun via Tarantool-patches 2021-03-26 11:47 ` Sergey Ostanevich via Tarantool-patches 2021-03-26 14:52 ` Sergey Kaplun via Tarantool-patches 2021-03-30 22:15 ` Igor Munkin via Tarantool-patches 2021-04-01 11:37 ` Sergey Kaplun via Tarantool-patches 2021-04-06 20:09 ` Igor Munkin via Tarantool-patches 2021-04-06 20:40 ` Igor Munkin via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 12/30] test: adapt PUC Lua test with count hooks Sergey Kaplun via Tarantool-patches 2021-03-26 11:49 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:15 ` Igor Munkin via Tarantool-patches 2021-04-01 11:42 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 13/30] test: disable PUC Lua test for tail call info Sergey Kaplun via Tarantool-patches 2021-03-26 14:43 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:15 ` Igor Munkin via Tarantool-patches 2021-04-01 11:52 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 14/30] test: adapt activeline check in the PUC Lua test Sergey Kaplun via Tarantool-patches 2021-03-26 14:50 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:15 ` Igor Munkin via Tarantool-patches 2021-04-01 11:58 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 15/30] test: disable PUC-Lua test for per-coroutine hooks Sergey Kaplun via Tarantool-patches 2021-03-26 14:54 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:16 ` Igor Munkin via Tarantool-patches 2021-04-01 12:03 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:42 ` [Tarantool-patches] [PATCH v2 luajit 16/30] test: adapt PUC Lua test for %q in fmt for LuaJIT Sergey Kaplun via Tarantool-patches 2021-03-26 14:56 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:16 ` Igor Munkin via Tarantool-patches 2021-04-01 12:33 ` Sergey Kaplun via Tarantool-patches 2021-04-06 21:37 ` Igor Munkin via Tarantool-patches [this message] 2021-04-07 15:50 ` Sergey Kaplun via Tarantool-patches 2021-04-07 16:31 ` Igor Munkin via Tarantool-patches 2021-04-08 8:51 ` Sergey Kaplun via Tarantool-patches 2021-04-12 10:26 ` Igor Munkin via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 17/30] test: disable locale-depended tests for Lua suite Sergey Kaplun via Tarantool-patches 2021-03-26 14:58 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:16 ` Igor Munkin via Tarantool-patches 2021-04-01 19:12 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 18/30] test: replace math.mod to math.fmod for Lua tests Sergey Kaplun via Tarantool-patches 2021-03-26 15:12 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:17 ` Igor Munkin via Tarantool-patches 2021-03-26 15:16 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:16 ` Igor Munkin via Tarantool-patches 2021-04-01 19:36 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 19/30] test: remove assert for string.gfind check Sergey Kaplun via Tarantool-patches 2021-03-26 15:14 ` Sergey Ostanevich via Tarantool-patches 2021-03-30 22:17 ` Igor Munkin via Tarantool-patches 2021-04-02 7:05 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 20/30] test: adapt PUC Lua test for args in vararg func Sergey Kaplun via Tarantool-patches 2021-03-26 14:54 ` Sergey Kaplun via Tarantool-patches 2021-03-26 15:22 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 9:51 ` Igor Munkin via Tarantool-patches 2021-04-02 7:21 ` Sergey Kaplun via Tarantool-patches 2021-04-06 20:45 ` Igor Munkin via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 21/30] test: disable test for getfenv in closure tailcall Sergey Kaplun via Tarantool-patches 2021-03-26 15:41 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 9:51 ` Igor Munkin via Tarantool-patches 2021-04-02 7:40 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 22/30] test: disable PUC Lua test for var names in error Sergey Kaplun via Tarantool-patches 2021-03-26 15:44 ` Sergey Ostanevich via Tarantool-patches 2021-03-26 16:01 ` Sergey Kaplun via Tarantool-patches 2021-03-31 19:23 ` Igor Munkin via Tarantool-patches 2021-04-02 7:48 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 23/30] test: disable PUC Lua test for fast function name Sergey Kaplun via Tarantool-patches 2021-03-26 15:45 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 19:23 ` Igor Munkin via Tarantool-patches 2021-04-02 8:14 ` Sergey Kaplun via Tarantool-patches 2021-04-06 21:37 ` Igor Munkin via Tarantool-patches 2021-04-07 16:06 ` Sergey Kaplun via Tarantool-patches 2021-04-07 16:11 ` Igor Munkin via Tarantool-patches 2021-04-07 19:57 ` Sergey Kaplun via Tarantool-patches 2021-04-12 9:36 ` Igor Munkin via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 24/30] test: disable PUC Lua test for non-asci identifier Sergey Kaplun via Tarantool-patches 2021-03-26 15:46 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 19:23 ` Igor Munkin via Tarantool-patches 2021-04-02 8:20 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 25/30] test: disable PUC Lua error test for syntax level Sergey Kaplun via Tarantool-patches 2021-03-26 15:52 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 19:24 ` Igor Munkin via Tarantool-patches 2021-04-02 8:30 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 26/30] test: disable tests with multiple -l options Sergey Kaplun via Tarantool-patches 2021-03-26 15:56 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 19:24 ` Igor Munkin via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 27/30] test: disable PUC Lua test for checking arg layout Sergey Kaplun via Tarantool-patches 2021-03-26 15:58 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 19:24 ` Igor Munkin via Tarantool-patches 2021-04-02 8:35 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 28/30] test: disable PUC Lua test checking -h option Sergey Kaplun via Tarantool-patches 2021-03-26 15:58 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 19:24 ` Igor Munkin via Tarantool-patches 2021-04-02 8:39 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 29/30] test: disable PUC Lua hanging GC test Sergey Kaplun via Tarantool-patches 2021-03-26 16:03 ` Sergey Ostanevich via Tarantool-patches 2021-03-31 19:24 ` Igor Munkin via Tarantool-patches 2021-03-31 19:24 ` Igor Munkin via Tarantool-patches 2021-04-02 8:45 ` Sergey Kaplun via Tarantool-patches 2021-03-26 7:43 ` [Tarantool-patches] [PATCH v2 luajit 30/30] test: disable too depth recursive PUC Lua test Sergey Kaplun via Tarantool-patches 2021-03-26 16:28 ` Sergey Ostanevich via Tarantool-patches 2021-03-26 16:45 ` Sergey Kaplun via Tarantool-patches 2021-03-31 19:24 ` Igor Munkin via Tarantool-patches 2021-04-02 8:47 ` Sergey Kaplun via Tarantool-patches 2021-03-26 11:09 ` [Tarantool-patches] [PATCH v2 luajit 00/30] Adapt PUC-Rio Lua 5.1 test suite Sergey Ostanevich via Tarantool-patches 2021-03-26 14:12 ` Sergey Kaplun via Tarantool-patches 2021-03-30 22:17 ` Igor Munkin via Tarantool-patches 2021-03-31 9:41 ` Sergey Kaplun via Tarantool-patches 2021-03-31 10:49 ` Igor Munkin via Tarantool-patches
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