Re: [PATCH 2/2] [GSOC] ref-filter: add %(raw) atom

From: ZheNing Hu <adlternative@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: ZheNing Hu via GitGitGadget <gitgitgadget@gmail.com>,
	Git List <git@vger.kernel.org>,
	Christian Couder <christian.couder@gmail.com>,
	Hariom Verma <hariom18599@gmail.com>,
	Karthik Nayak <karthik.188@gmail.com>,
	Felipe Contreras <felipe.contreras@gmail.com>,
	Bagas Sanjaya <bagasdotme@gmail.com>, Jeff King <peff@peff.net>,
	Phillip Wood <phillip.wood123@gmail.com>
Subject: Re: [PATCH 2/2] [GSOC] ref-filter: add %(raw) atom
Date: Thu, 3 Jun 2021 22:06:35 +0800	[thread overview]
Message-ID: <CAOLTT8QjnFqXHRzAPnJStf4Ra189dZFe9k-Y9COoSCwW47CXiA@mail.gmail.com> (raw)
In-Reply-To: <CAOLTT8TiyAtJfcrPoBF6SECfaKOTKt24NSOtTmf84JwHrU8g1A@mail.gmail.com>

ZheNing Hu <adlternative@gmail.com> 于2021年6月3日周四 下午1:36写道：
>
> Junio C Hamano <gitster@pobox.com> 于2021年6月3日周四 上午10:38写道：
> > But I do not think we want to add the new change at this location,
> > at least for two reasons:
> >
> >  * The posted patch checks '!arg' to avoid rejecting "raw:size",
> >    which would not scale at all.  What if you wanted to later add
> >    "raw:upcase", which you must reject?
> >
>
> Yeah, the code here makes "raw" lack of scalability. Especially we
> want to add "%(raw:textconv)" and "%(raw:filter)" later.
>

Now I am building %(raw:textconv) and %(raw:filter), the code will be
very difficult to write:

        if (format->quote_style && !strncmp(sp, "raw", 3)
                                && ((!arg) || (!strncmp(arg,
":textconv", 9)) || (!strncmp(arg, ":filter", 7))))
                return strbuf_addf_ret(err, -1, _("--format=%.*s
cannot be used with"
                                "--python, --shell, --tcl, --perl"),
(int)(ep-atom), atom);

Is there any good way?

Thanks.
--
ZheNing Hu