some formats do not depend on the engines

[Vincenzo Mantova]

>
> Would "uses" be better expressed as "requires", and would "pdftex and
> xetex" be better expressed as "pdftex or xetex" ?

Yes to the first question, each program requires those engines to create
its formats.

As to the second question, no, csplain requires both. It contains a format
with engine pdftex and a format with engine xetex. fmtutil will try to
launch both engines, and of course fail if one of them is missing.

Best,
Vincenzo


Il giorno lun 14 ago 2023 alle ore 20:19 Philip Taylor (Hellenic Institute)
<P.Taylor at hellenic-institute.uk> ha scritto:

> On 14/08/2023 20:10, Vincenzo Mantova wrote:
>
> Hi,
>
> The following packages include formats but do not explicitly depend on the
> underlying engines:
> - amstex uses pdftex
> - csplain uses pdftex and xetex
> - lollipop uses tex
> - mptopdf uses pdftex
> - texsis uses pdftex
>
> Would "uses" be better expressed as "requires", and would "pdftex and
> xetex" be better expressed as "pdftex or xetex" ?
>
> --
> *Philip Taylor*
>
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