Re: t-vim module: no highlighting for custom filetypes

[Nicola <nvitacolonna@gmail.com>]

On 2021-05-21, Nicola <nvitacolonna@gmail.com> wrote:
> For some reason, the vim module has stopped highlighting code associated
> to custom filetypes (it still works for built-in filetypes).

I think I have found the culprit. In t-vim.tex, lines 63-88, Vim is
called with --clean. That option appears *after* -u, effectively
overriding it. Moving --clean as the first option (or, better, removing
it) solves my issue.

Some remarks. The module has this comment:

       --clean % dont load scada [sic] file (nvim)

If the purpose of the option is to avoid loading a shada file, `-i NONE`
(which is already there) should be enough.

In Vim, --clean is not strictly necessary, because it is effectively
a shorthard for `-N -i NONE --noplugin`. In Neovim, the meaning might be
slightly different. Which brings me to the next paragraph.

My recommendation would be not to care about Neovim. It is *not*
a drop-in replacement for Vim and not meant to be compatible with Vim
(it has already diverged from Vim in significant ways). Supporting both
is likely going to become more and more difficult as time goes by.

Anyway, if you do want to support both, I'd suggest at least to
segregate the two commands, even if currently they may be (almost)
identical.

Hope this helps!
Nicola

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