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From: Rik Kabel via ntg-context <ntg-context@ntg.nl>
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Subject: \autoinsertedspace fails following \nbsp under LMTX
Date: Thu, 17 Nov 2022 00:43:04 -0500
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ConTeXt  ver: 2022.11.14 22:58 LMTX on W11 x64

I have been testing the recently added \autoinsertedspace, and I found 
an odd failure.

The following compiles with \nbsp commented as shown, but once that line 
is active, the compilation fails:

    lua error:
             callback error:
    ...MTX/tex/texmf-context/tex/context/base/mkxl/font-hsh.lmt:151:
    table index is nil

It fails differently in MkIV (but it is nice to see that the new command 
has been backported):

    luatex warning  > node filter: error:
    ...MTX/tex/texmf-context/tex/context/base/mkiv/node-nut.lua:380:
    Attempt to node.direct.remove() a non-existing node

    %<------------------------------------------------------

    \starttexdefinition unexpanded New
       \dodoublegroupempty
       \doNew
    \stoptexdefinition
    \starttexdefinition doNew #1#2
        \removeunwantedspaces
        \ (#1|–|#2)
        \autoinsertedspace
    \stoptexdefinition

    \starttext

       ABC 0\New{123}{456} 789

       ABC
    % \nbsp
       0\New{123}{456} 789

    \stoptext

Am I doing something wrong here? \nbsp is needed to prevent improper 
line breaks.

-- 
Rik

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    <p>ConTeXt  ver: 2022.11.14 22:58 LMTX on W11 x64
    </p>
    <p>I have been testing the recently added \autoinsertedspace, and I
      found an odd failure.</p>
    <p>The following compiles with \nbsp commented as shown, but once
      that line is active, the compilation fails:</p>
    <blockquote>
      <p><font face="monospace">lua error:<br>
                  callback error:
          ...MTX/tex/texmf-context/tex/context/base/mkxl/font-hsh.lmt:151:
          table index is nil</font><br>
      </p>
    </blockquote>
    <p>It fails differently in MkIV (but it is nice to see that the new
      command has been backported):</p>
    <blockquote>
      <p><font face="monospace">luatex warning  &gt; node filter: error:
...MTX/tex/texmf-context/tex/context/base/mkiv/node-nut.lua:380: Attempt
          to node.direct.remove() a non-existing node</font></p>
      <p><font face="monospace">%&lt;------------------------------------------------------</font><br>
      </p>
    </blockquote>
    <blockquote>
      <p><font face="monospace">\starttexdefinition unexpanded New<br>
            \dodoublegroupempty<br>
            \doNew<br>
          \stoptexdefinition<br>
          \starttexdefinition doNew #1#2<br>
             \removeunwantedspaces<br>
             \ (#1|–|#2)<br>
             \autoinsertedspace<br>
          \stoptexdefinition<br>
          <br>
          \starttext<br>
          <br>
            ABC 0\New{123}{456} 789<br>
          <br>
            ABC<br>
          % \nbsp<br>
            0\New{123}{456} 789<br>
          <br>
          \stoptext<br>
        </font><br>
      </p>
    </blockquote>
    <p>Am I doing something wrong here? \nbsp is needed to prevent
      improper line breaks.<br>
    </p>
    <p>-- <br>
      Rik<br>
    </p>
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