[NTG-context] Fwd: Errors, error messages, ...

[NTG-context] Fwd: Errors, error messages, ...

[Hans Hagen via ntg-context]

-------- Forwarded Message --------
Subject: Re: [NTG-context] Errors, error messages, ...
Date: Thu, 12 Feb 2026 17:08:17 +0100
From: Hans Hagen <j.hagen@xs4all.nl>
To: Jim <zlists+context@jdvb.ca>

On 2/12/2026 4:27 PM, Jim wrote:
> Hi all,
> 
> Running context on a file with a non-existent command I get
> 
> ...<stuff>
> 18
> 19     <line 3.9>
> The control sequence at the end of the top line of your error message was never
> \def'ed. You can just continue as I'll forget about whatever was undefined.
> 
> Q1: (My error was on line 9, that part I understand.)
>      But what is "3" ?

The nesting level.

> Q2: Is it possible to make context LMTX continue on when it sees an error?
>      If so, how?

There are options (directives) but often it's easier to just fix the 
error because when something is wrong, you never know what side effects 
it has ... continuing made sense in times when one has to wait overnight 
for a run to finish and/or fix it at the spot in order not to waste time 
(and note down the place and fix).

So, the policy is: quit an fix. ConTeXt is fast enough not to bother 
about a restart. Continuing is just torturing yourself.

>      If not,
>      -> should the text "You can just continue ..." be removed, since
>         (if this is the case) you can't continue?  and

It's the original Knuthian message. Of course we could 'patch' that.

>      -> is --nonstopmode redundant?
> 
> Bonus question: should "context --help" list the "--luatex" option?

Dunno.

Hans

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