URL:
<https://puszcza.gnu.org.ua/bugs/?662>
Summary: Problem using hyperref with label in tex4ht. It
displays label different than pdf
Project: tex4ht
Submitted by: nma123
Submitted on: Sun Jul 27 08:44:06 2025
Category: None
Priority: 5 - Normal
Severity: 5 - Normal
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/748709/problem-using-hyperref-with-label-in-tex4ht-it-displays-label-different-than-pd>
Did something change in tex4ht? I am using TL 2025, installed fresh one week
ago on new Linux.
When doing \hyperref[1]{1} then later \subsection{Problem 1}\label{1} , I
expected the link to point and also display 1. That what happens in the PDF.
But in tex4ht, the link points correctly to the subsection when clicking on
it, but it does not display what the label is which is1.
Instead is displays 1.1.1 which seems to be tex4ht internal titlemark it
generates.
I want it the link to display 1 as that is the label.
Am I doing something wrong? How to make it display 1? Do I need to use
something other than \label with tex4ht? I do not remember this is how it used
to be, else I would have noticed it.
Here is MWE
----------------------------
\documentclass[12pt]{book}
\usepackage{hyperref}
\usepackage{longtable}
\begin{document}
\chapter{my table}
\section{Chapter 1. First order differential equations. Section 1.2. Problems
at page 17}
\begin{longtable}{|p{0.4in}|p{0.6in}|p{5in}|}\hline
\hyperref[1]{1}&1&$y^{\prime} = 2 x +1$\\ \hline
\hyperref[2]{2}&2&$y^{\prime} = \left(x -2\right)^{2}$\\ \hline
\end{longtable}
\subsection{Problem 1}\label{1}
text
\subsection{Problem 2}
\label{2}
text
\end{document}
-------------------------
Compiled with lualatex, gives correct display and link in the pdf
enter image description here
But compiled with tex4ht it gives
make4ht -ulm default -a debug index.tex "mathjax,htm"
enter image description here
Notice the label is not 1 but 1.1.1. Here is raw HTML generated
----------------------
<h2 class='chapterHead' id='my-table'><span class='titlemark'>Chapter
1</span><br /><a id='x1-10001'></a>my table</h2>
<h3 class='sectionHead'
id='chapter-first-order-differential-equations-section-problems-at-page-'><span
class='titlemark'>1.1 </span> <a id='x1-20001.1'></a>Chapter 1. First order
differential equations. Section 1.2. Problems at
page 17</h3>
<!-- l. 8 --><p class='noindent'>
<a id='x1-2001r1'></a></p> <!-- l. 9 --><div class='longtable'> <table
class='longtable' id='TBL-1'><colgroup id='TBL-1-1g'><col id='TBL-1-1'
/></colgroup><colgroup id='TBL-1-2g'><col id='TBL-1-2' /></colgroup><colgroup
id='TBL-1-3g'><col id='TBL-1-3' /></colgroup>
<tr class='hline'><td></td><td></td><td></td></tr><tr id='TBL-1-1-'
style='vertical-align:baseline;'><td class='td11' id='TBL-1-1-1'
style='white-space:normal; text-align:left;'>
<!-- l. 9 --><p class='noindent'><a href='#problem-'>1.1.1<!-- tex4ht:ref: 1
--></a> </p></td><td class='td11' id='TBL-1-1-2' style='white-space:normal;
text-align:left;'>
<!-- l. 9 --><p class='noindent'>1 </p></td><td class='td11'
id='TBL-1-1-3' style='white-space:normal; text-align:left;'>
<!-- l. 9 --><p class='noindent'><span class='mathjax-inline'>\(y^{\prime } =
2 x +1\)</span>
</p></td>
</tr><tr class='hline'><td></td><td></td><td></td></tr><tr id='TBL-1-2-'
style='vertical-align:baseline;'><td class='td11' id='TBL-1-2-1'
style='white-space:normal; text-align:left;'>
<!-- l. 10 --><p class='noindent'><a href='#problem-1'>1.1.2<!-- tex4ht:ref: 2
--></a> </p></td>
<td class='td11' id='TBL-1-2-2' style='white-space:normal; text-align:left;'>
<!-- l. 10 --><p class='noindent'>2 </p></td>
<td class='td11' id='TBL-1-2-3' style='white-space:normal; text-align:left;'>
<!-- l. 10 --><p class='noindent'><span class='mathjax-inline'>\(y^{\prime } =
\left (x -2\right )^{2}\)</span>
</p></td>
</tr><tr class='hline'><td></td><td></td><td></td></tr>
</table></div>
<h4 class='subsectionHead' id='problem-'><span class='titlemark'>1.1.1
</span> <a id='x1-30001.1.1'></a>Problem 1</h4>
<!-- l. 16 --><p class='noindent'>text
</p>
<h4 class='subsectionHead' id='problem-1'><span class='titlemark'>1.1.2
</span> <a id='x1-40001.1.2'></a>Problem 2</h4>
<!-- l. 21 --><p class='noindent'>text
</p>
-------------------
The HTML above shows tex4ht is generating different titlemarks than what the
\label is.
>which make4ht
/usr/local/texlive/2025/bin/x86_64-linux/make4ht
>make4ht --version
make4ht version v0.4d
Thanks
--Nasser
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