[tex4ht] [bug #604] tex4ht in TL 2023 broke something in handling breqn compared to TL 2022

[Nasser M. Abbasi]

URL:
  <http://puszcza.gnu.org.ua/bugs/?604>

                 Summary: tex4ht in TL 2023 broke something in handling breqn
compared to TL 2022
                 Project: tex4ht
            Submitted by: nma123
            Submitted on: Sat Jul 22 13:41:10 2023
                Category: None
                Priority: 5 - Normal
                Severity: 7 - Important
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

    _______________________________________________________

Details:

Reference and screen shots at

https://tex.stackexchange.com/questions/691737/tex4ht-in-tl-2023-broke-something-in-handling-breqn-compared-to-tl-2022


This MWE compiled under TL 2022 gives correct output, while using same command
and same configuration file, under TL 2023 gives wrong output.

Here is MWE
--------------------------
\documentclass[12pt]{book}
\usepackage{amsmath}
\usepackage{breqn}
\begin{document}
\begin{dgroup*} 
\begin{dmath}[number=1]
\sin x = 1
\end{dmath} 
\begin{dmath}[number=2]
\sin x = 1
\end{dmath} 
\end{dgroup*} 

\begin{dgroup*}
\begin{dmath*}
   A = B
\end{dmath*}      
\begin{dmath*}
   C = D
\end{dmath*}    
\end{dgroup*}
\end{document}
------------------------

Compiled using

>which make4ht
/usr/local/texlive/2022/bin/x86_64-linux/make4ht

and

make4ht -ulm default -a warning -c nma_mathjax.cfg  main.tex 'mathjax,htm'

This is the output under TL 2022 on Linux

enter image description here

This is the output under TL 2023 on Linux

>which make4ht
/usr/local/texlive/2023/bin/x86_64-linux/make4ht

and

>make4ht -ulm default -a warning -c nma_mathjax.cfg  main.tex 'mathjax,htm'

enter image description here

Btw, this is old problem which was fixed in TL 2022. Here is the link to
original question about it 

https://tex.stackexchange.com/questions/620104/error-using-ifdefined-hcode-with-tex4ht-but-it-works-in-luatex


Here is my .cfg file used in the above command

--------------------
\Preamble{xhtml,p-width}    
\Configure{MathjaxSource}{}    
\Configure{MathjaxSource}{https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js}
   
%V3.0
\Configure{MathJaxConfig}{{  
  tex: {
    tags: "ams",
    maxBuffer: 40*1024,
    packages: {'[+]': ['textmacros']},
    \detokenize{% 
      environments: {
        "dgroup*": ["", ""],
        "dmath*": ["", ""],
        "dgroup": ["", ""],
        "dmath": ["", ""]
      }}, 
    \unexpanded{%
    macros: {      
        sp: "^",
        sb: "_",      
      noalign: ["\#1", 1],
    }},
    autoload: {
      color: [],
      colorV2: ['color']
    },
    packages: {'[+]': ['noerrors','textmacros']}
  },
  options: {
    ignoreHtmlClass: 'tex2jax_ignore',
    processHtmlClass: 'tex2jax_process'
  },
  loader: {
    load: ['[tex]/noerrors','[tex]/textmacros']
  }
};
}
%see
https://tex.stackexchange.com/questions/620104/error-using-ifdefined-hcode-with-tex4ht-but-it-works-in-luatex/620138?noredirect=1#comment1548405_620138
%IMPORTANT. Need also .config folder in my HOME folder for this to work.
\VerbMath{dgroup*}
\VerbMath{dmath*}
\VerbMath{dgroup}
\VerbMath{dmath}

%see
https://tex.stackexchange.com/questions/669770/problem-2-after-updating-to-latest-tl-2022-all-math-in-chapter-or-section-titl
\fixmathjaxtoc\left
\fixmathjaxtoc\right

\begin{document}
\EndPreamble
---------------------

What do I need to change to make it work again in TL 2023 same as under TL
2022?

Thanks
--Nasser






    _______________________________________________________

Reply to this item at:

  <http://puszcza.gnu.org.ua/bugs/?604>

_______________________________________________
  Message sent via/by Puszcza
  http://puszcza.gnu.org.ua/