[l2h] error for eqnarray* on latex2html-2022

[Shigeharu TAKENO]

shige 01/19 2022
----------------

I wrote:
| Error messages in images.log:
| 
|   ! Missing \endgroup inserted.
|   <inserted text> 
|                   \endgroup 
|   l.124 \lthtmldisplayZ
|   ...
| 
| latex2html-2021.2 translates the same source correctly. The 
| difference of images.tex seems to be the patch for the 
| latex2html.pin:
| 
|   https://github.com/latex2html/latex2html/commit/e18448cd3cb09fa211ca69edad284a2ddbd36d4b
| 
| But I don't know what to fix.

I found that the problem depends on the order of \vbox and \hbox
in the definition of \lthtmlTightVBoxA. The original definition

  \long\def\lthtmlTightVBoxA#1{\def\lthtmllabel{#1}
    \setbox\lthtmlPageBox\vbox\bgroup\hbox\bgroup\catcode`\_=8 }%

causes errors, and 

  \long\def\lthtmlTightVBoxA#1{\def\lthtmllabel{#1}
    \setbox\lthtmlPageBox\hbox\bgroup\vbox\bgroup\catcode`\_=8 }%

does not. But I don't know this is the correct solution.

+========================================================+
 Shigeharu TAKENO     NIigata Institute of Technology
                       kashiwazaki,Niigata 945-1195 JAPAN
 shige at iee.niit.ac.jp   TEL(&FAX): +81-257-22-8161
+========================================================+