## tex4ht - Bugs: bug #480, Failure with Biblatex-Chicago

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## bug #480: Failure with Biblatex-Chicago

 Submitted by: Michal Hoftich Submitted on: Fri Jul 31 07:53:38 2020 Category: None Priority: 5 - Normal Severity: 5 - Normal Status: None Privacy: Public Assigned to: None Open/Closed: Closed

Thu Dec 16 15:21:20 2021, comment #2:

I've found that we need to reset catcodes before loading of Ifthen, we get some issues otherwise, like in this sample:

\documentclass{article}
\usepackage{biblatex-chicago}
\usepackage[english]{babel}
\begin{document}
hello
\end{document}

It produces an error about unknown command \string:, which is caused by wrong catcode of the ":" character.

The fix for this issue is in the sources now.

Michal Hoftich <michal_h21>
Tue Dec 14 16:28:44 2021, comment #1:

I've revisited this issue as we now fixed various issues related to BibLaTeX and Hyperref. I've found, that in addition to issues from the last year, that were related to the use of \url command in the BibLaTeX's note field, it also fails with some Ifthen commands. It reported that \NOT and others were unknown commands.
I fixed that by loading of Ifthen before BibLaTeX Chicago in the biblatex-chicago-hooks.4ht file.

Then there was the original issue, cause by use of \url inside the "note" field in the BibTeX file. I've fixed that using \protected\def, instead of just \def, for the redefinition of \url.

With these fixes, everything works.

Michal Hoftich <michal_h21>
Fri Jul 31 07:53:38 2020, original submission:

I've found this post on Stackoverflow: https://stackoverflow.com/questions/63081369/make4ht-with-biblatex-fails-for-records-using-url-when-title-field-used-but-not

It seems that TeX4ht fails when \url command is used in the note field in a BibTeX field. This happens only with Biblatex-Chicago. I've tried to locate this issue, but haven't found a solution yet.

Michal Hoftich <michal_h21>

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