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Typos im mathcodes.c

Ulrike Fischer

31 Jul 2025 31 Jul '25

2:37 p.m.

When using pdftex then \pdfcreationdate and \pdftexversion works also in dvi-mode and outputs the date D:20250731142645+02’00’ or the version. dviluatex on the other side errors with ! unexpected use of \pdffeedback. l.85 \pdffeedback creationdate would it be possible to align both engines more? Despite the pdf in the names, the commands are useful also in dvi mode. -- Ulrike Fischer http://www.troubleshooting-tex.de/

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luigi scarso

31 Jul 31 Jul

3:44 p.m.

On Thu, 31 Jul 2025 at 14:43, Ulrike Fischer wrote:

When using pdftex then \pdfcreationdate and \pdftexversion works also in dvi-mode and outputs the date D:20250731142645+02’00’ or the version.

dviluatex on the other side errors with ! unexpected use of \pdffeedback. l.85 \pdffeedback creationdate

would it be possible to align both engines more? Despite the pdf in the names, the commands are useful also in dvi mode.

Do you have a test file ? -- luigi

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Ulrike Fischer

3:46 p.m.

On Thu, 31 Jul 2025 at 14:43, Ulrike Fischer wrote:

...
When using pdftex then \pdfcreationdate and \pdftexversion works also in dvi-mode and outputs the date D:20250731142645+02’00’ or

Am Thu, 31 Jul 2025 15:44:36 +0200 schrieb luigi scarso: the

...
sion.

...
...
dviluatex on the other side errors with

...
nexpected use of \pdffeedback.

...
5 \pdffeedback

...
creationdate

...
...
would it be possible to align both engines more? Despite the pdf

in

...
names, the commands are useful also in dvi mode.

...
...
...
Do you have a test file ?

-- luigi

\pdffeedback creationdate \bye and compile with dviluatex -- Ulrike Fischer http://www.troubleshooting-tex.de/

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Hans Hagen

4:33 p.m.

On 7/31/2025 3:46 PM, Ulrike Fischer wrote:

Am Thu, 31 Jul 2025 15:44:36 +0200 schrieb luigi scarso:

...
On Thu, 31 Jul 2025 at 14:43, Ulrike Fischer wrote:

...
When using pdftex then \pdfcreationdate and \pdftexversion works also in dvi-mode and outputs the date D:20250731142645+02’00’ or the

...
sion.

...
...
dviluatex on the other side errors with

...
nexpected use of \pdffeedback.

...
5 \pdffeedback

...
creationdate

...
...
would it be possible to align both engines more? Despite the pdf in

...
names, the commands are useful also in dvi mode.

...
...
...
Do you have a test file ?

-- luigi

\pdffeedback creationdate

\bye

and compile with dviluatex

It makes little sense to initialize the pdf machinery for this feature and it would be \dvifeedback creationdate then anyway a it relates to outputmode. You can just define a command, something like this: \def\pdfcreationdate {\directlua{ tex.print(os.date("D:%Y%m%d%H%M%S+00'00'",os.time())) }} if needed (assuming the percent character is a letter here). Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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luigi scarso

6:45 p.m.

On Thu, 31 Jul 2025 at 15:46, Ulrike Fischer wrote:

\pdffeedback creationdate

\bye

and compile with dviluatex

isn't \dvifeedback ? Anyway, it's not implemented; it seems feasible, but I don't know if it makes sense to spend time on it. In my opinion, the DVI backend is frozen. -- luigi

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David Carlisle

7:30 p.m.

in luatex85.sty we just locally flip the output mode {\outputmode=1 \xdef\pdfcreationdate {\pdffeedback creationdate} } On Thu, 31 Jul 2025 at 14:46, Ulrike Fischer wrote:

Am Thu, 31 Jul 2025 15:44:36 +0200 schrieb luigi scarso:

...
On Thu, 31 Jul 2025 at 14:43, Ulrike Fischer wrote:

...
When using pdftex then \pdfcreationdate and \pdftexversion works also in dvi-mode and outputs the date D:20250731142645+02’00’ or the

...
sion.

...
...
dviluatex on the other side errors with

...
nexpected use of \pdffeedback.

...
5 \pdffeedback

...
creationdate

...
...
would it be possible to align both engines more? Despite the pdf in

...
names, the commands are useful also in dvi mode.

...
...
...
Do you have a test file ?

-- luigi

\pdffeedback creationdate

\bye

and compile with dviluatex

-- Ulrike Fischer http://www.troubleshooting-tex.de/

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participants (4)

David Carlisle
Hans Hagen
luigi scarso
Ulrike Fischer