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User-Agent: Gnus/5.13 (Gnus v5.13)
MIME-Version: 1.0
Content-Type: text/plain
Message-ID:  <877cqk53ns.fsf@fencepost.gnu.org>
Date:         Fri, 28 Jul 2023 19:47:35 +0200
Reply-To:     Mailing list for the LaTeX3 project
              <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>
Sender:       Mailing list for the LaTeX3 project <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>
From:         David Kastrup <dak@GNU.ORG>
Subject: Re: "new" \input vs. primitive behavior
To:           LATEX-L@LISTSERV.UNI-HEIDELBERG.DE
In-Reply-To:  <e16efddf-43bf-9d44-3e8d-59e2e385e4c5@nag.co.uk> (David
              Carlisle's message of "Fri, 28 Jul 2023 18:39:58 +0100")
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Status: R

David Carlisle
<000006e69eda60e0-dmarc-request@LISTSERV.UNI-HEIDELBERG.DE> writes:

> On 28/07/2023 18:25, LARONDE Thierry wrote:
>> Why in this case not having requested a \filefind primitive, with an
>> argument specifying a required extension (an empty string if to be
>> taken as is), and using the return value with other primitives (size,
>> moddate, md5, dump) doing no search and no extension (very "primitive"
>> primitives)?
>
> you are asking on a latex list, but this is not a latex issue.
>
> \pdffilesize has had this behaviour in pdftex for decades, and another
> primitive isn't needed.

As a side comment: "another primitive isn't needed" is kind of a
fundamental LaTeX mantra: as opposed to LuaTeX/Context, traditional
LaTeX development has always taken the position of being "downstream",
making do with whatever the engines (with a particularly long and
thorough focus on the original TeX engine) provide.

-- 
David "\romannumeral" Kastrup