On 6/14/25 12:37, John Was wrote:
> Good day, Contexters

Hi John,

welcome to the mailing list.

> I've been using plain TeX for many years (EmTeX, if anyone can remember
> that, and latterly XeTeX), but my motivation for getting acquainted with
> ConText, rather late in life, is the need to produce tagged PDFs that
> will be accessible to the visually impaired (generally using an audio
> reader), and I understand (or at least hope) that ConText can help with
> that.

PDF tagging is being added to ConTeXt. This means that some features may
need to be added yet.

> I'm only just getting started with the /Not so Short Introduction/, and
> of course have many questions which I think/hope I will be able to
> answer myself from the documentation:  I've not managed to load pstricks
> or edmac,

As for pstricks (never used it), I have just found that there is a
module `m-pstrick', but it doesn’t work with LuaMetaTeX.

I couldn’t make it work with LuaTeX either (sample from
https://mailman.ntg.nl/archives/list/ntg-context@ntg.nl/message/RJR7MRTPR7S35OH4KWAWIOAMY3CRF5UB/).

edmac is almost three decades old. If you want
https://raw.githubusercontent.com/wujastyk/edmac/refs/heads/main/Wujastyk%20and%20Lavagnino_Edmac317%20book_1996.pdf#page=84,
this should be achievable with ConTeXt (no modules needed).

> for example, but this must be possible, and some primitives
> such as \baselineskip seem to have disappeared

LuaMetaTeX happens to have a primitive with the same name,
https://www.pragma-ade.nl/general/manuals/luametatex.pdf#page=93.

> together with the fontcall system I'm used to:
> 
> \font\umirtenpointsevenfive = "MinionPro-Regular:+onum:mapping=tex-
> text:letterspace=1.6" at 10.75pt

Not clear to me what the second command (after `\font`) means in plain
English.

> [...] With my XeTeX-produced PDFs an audio
> reader will simply read all of the main text on a page, then the
> footnotes (the last of which may be split between pages), and then start
> again on the next page - clearly annoying and unacceptable to those who
> can't see the PDF.

This is probably due to a poorly tagged PDF document (my guess).

> I'd be most grateful to be pointed in the right direction - or is
> what I've outlined simply not achievable?

I think LuaLaTeX may achieve that too (for your info).

Not sure whether our tagging is that far now (with notes).

I hope it helps,

Pablo
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