Re: "new" \input vs. primitive behavior

Will Robertson <[email protected]> Mon, 31 Jul 2023 09:53:20 +0930
Newsgroups gmane.comp.tex.latex.latex3
Message-ID <[email protected]> 
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Hi Thierry,

> On 30 Jul 2023, at 01:55, LARONDE Thierry <tlaronde-PXNCZ/[email protected]> =
wrote:
>=20
> So, as far as I'm concerned, I will make the file primitives behave =
like
> \input, state it in the documentation (so if someone wants to write
> another engine LaTeX compliant, it can at least start with that if he
> doesn't want my change file), with the TeX behavior (ignoring =
kpathsea),
> that is: one can not input or size etc. a file without an extension
> ---and this should not cause any problem for LaTeX per se because, if =
it
> was the case with the present state of core LaTeX, the problem would
> have been seen before in kerTeX.

Apologies if I=E2=80=99m misinterpreting there -- TeX *does* \input a =
file without an extension on TeX Live if there is one to be found:

echo "\write0{this is a file without an extension}" > TMP && tex "\input =
TMP\relax\bye"
This is TeX, Version 3.141592653 (TeX Live 2021) (preloaded format=3Dtex)
(./TMP) [1
this is a file without an extension
]
Output written on TMP.dvi (1 page, 196 bytes).
Transcript written on TMP.log.

Similarly in LaTeX (albeit I=E2=80=99m not up-to-date here...) with

echo "\typeout{this is a file without an extension}" > TMP && latex =
"\input{TMP}\csname @@end\endcsname"
This is pdfTeX, Version 3.141592653-2.6-1.40.23 (TeX Live 2022/dev) =
(preloaded format=3Dlatex)
 restricted \write18 enabled.
entering extended mode
LaTeX2e <2021-11-15> patch level 1
L3 programming layer <2021-11-22> (./TMP
this is a file without an extension
)
No pages of output.
Transcript written on TMP.log.

It is only LaTeX commands such as \include which cannot include a file =
without an extension.=20

Regards,
Will
(=46rom phone)=20=

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"overflow-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;"><meta =
http-equiv=3D"content-type" content=3D"text/html; charset=3Dutf-8"><div =
dir=3D"auto"><div dir=3D"ltr"></div><div dir=3D"ltr">Hi =
Thierry,</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On 30 Jul =
2023, at 01:55, LARONDE Thierry &lt;tlaronde-PXNCZ/[email protected]&gt; =
wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div =
dir=3D"ltr"><span>So, as far as I'm concerned, I will make the file =
primitives behave like</span><br><span>\input, state it in the =
documentation (so if someone wants to write</span><br><span>another =
engine LaTeX compliant, it can at least start with that if =
he</span><br><span>doesn't want my change file), with the TeX behavior =
(ignoring kpathsea),</span><br><span>that is: one can not input or size =
etc. a file without an extension</span><br><span>---and this should not =
cause any problem for LaTeX per se because, if it</span><br><span>was =
the case with the present state of core LaTeX, the problem =
would</span><br><span>have been seen before in =
kerTeX.</span><br></div></blockquote><br><div>Apologies if I=E2=80=99m =
misinterpreting there -- TeX *does* \input a file without an extension =
on TeX Live if there is one to be found:</div><div><br></div><div><p =
style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">echo "\write0{this =
is a file without an extension}" &gt; TMP &amp;&amp; tex "\input =
TMP\relax\bye"</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">This is TeX, =
Version 3.141592653 (TeX Live 2021) (preloaded format=3Dtex)</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">(./TMP) =
[1</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">this is a file =
without an extension</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">]</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">Output written on =
TMP.dvi (1 page, 196 bytes).</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">Transcript written =
on TMP.log.</span></p></div><div><br></div><div>Similarly in LaTeX =
(albeit I=E2=80=99m not up-to-date here...) =
with</div><div><br></div><div><p style=3D"margin: 0px; font-style: =
normal; font-variant-caps: normal; font-stretch: normal; font-size: =
18px; line-height: normal; font-family: Menlo; font-size-adjust: none; =
font-kerning: auto; font-variant-alternates: normal; =
font-variant-ligatures: normal; font-variant-numeric: normal; =
font-variant-east-asian: normal; font-variant-position: normal; =
font-feature-settings: normal; font-optical-sizing: auto; =
font-variation-settings: normal;"><span style=3D"font-variant-ligatures: =
no-common-ligatures">echo "\typeout{this is a file without an =
extension}" &gt; TMP &amp;&amp; latex "\input{TMP}\csname =
@@end\endcsname"</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">This is pdfTeX, =
Version 3.141592653-2.6-1.40.23 (TeX Live 2022/dev) (preloaded =
format=3Dlatex)</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">&nbsp;restricted =
\write18 enabled.</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">entering extended =
mode</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">LaTeX2e =
&lt;2021-11-15&gt; patch level 1</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">L3 programming =
layer &lt;2021-11-22&gt; (./TMP</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">this is a file =
without an extension</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">)</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">No pages of =
output.</span></p>
<p style=3D"margin: 0px; font-style: normal; font-variant-caps: normal; =
font-stretch: normal; font-size: 18px; line-height: normal; font-family: =
Menlo; font-size-adjust: none; font-kerning: auto; =
font-variant-alternates: normal; font-variant-ligatures: normal; =
font-variant-numeric: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-feature-settings: normal; =
font-optical-sizing: auto; font-variation-settings: normal;"><span =
style=3D"font-variant-ligatures: no-common-ligatures">Transcript written =
on TMP.log.</span></p></div><div><br></div><div>It is only LaTeX =
commands such as \include which cannot include a file without an =
extension.&nbsp;</div><div><br></div><div>Regards,</div><div>Will</div><di=
v>(=46rom phone)&nbsp;</div></div></body></html>=

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