Syntax highlighting using LMTX

[Thangalin via ntg-context <ntg-context@ntg.nl>]

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Hi all,

There are a few technical hurdles with using the t-vim module in LMTX.
First, users need to install the module using externally defined shell
scripts. Second, it's awkward to communicate to users how to install it,
especially for Windows users. Third, it likely requires installing vim, as
a separate step. Fourth, making general-purpose XML setups that optionally
rely on syntax highlighting when it is an optional install is a little
laborious.

If installing a module was as easy as "install.sh --module=t-vim" then that
would leap over most hurdles. Although there'd still be a dependency on
installing vim. Of course, it'd be pretty sweet if ConTeXt itself could
automatically install the necessary module when encountered (or provide a
command-line option to grant permissions to do so), but I understand that
that would be a hefty undertaking.

The following pages discuss creating syntax highlighters:

   - https://wiki.contextgarden.net/Verbatim_text
   - https://wiki.contextgarden.net/Custom_pretty_printer
   - https://tex.stackexchange.com/a/333620/2148

How would you go about creating a syntax highlighter for Java that can work
with LMTX? Specifically, I'd like to know:

   - Where do the files need to be saved? (e.g.,
   tex/texmf-context/tex/context/base/mkiv/)
   - What file name is required? (e.g., buff-imp-java.lua and
   buff-imp-java.mkiv)
   - How is the parser loaded? (e.g., \loadmarkfile{buff-imp-java} or
   \installprettytype[java][java])

Ultimately, this is going to be used with XML snippets along the lines of:

<pre><code class="language-java">public final class Example {
  public static void main( String args[] ) {
  }
}</code></pre>

Having the ability to dynamically define the requisite start/stop
environments based on the class attribute would be rather convenient.

Thank you!

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