[tex4ht] With LaTeX 2020-10-01, "\," causes endless loop

[Yukai Chou]

Awesome speed, thanks!

Yukai

Michal Hoftich <michal.h21 at gmail.com> 于2020年10月4日周日 上午5:07写道：

> Hi Yukai,
>
> >What is relevant is, "\thinspace" is now let to "\,". But the current
> >definition of "\,<space>" in latex.4ht (generated from tex4ht-4ht.tex)
> uses
> >"\thinspace",
> >
> >\def\:tempc{\relax\ifmmode\csname a:,\endcsname\else\thinspace\fi}
> >\expandafter\HLet\csname , \endcsname=\:tempc
> >
> >Therefore user input "\," now causes endless loop
> >
> >"\," -> "\,<space>" -> "\thinspace" -> "\,<space>" -> loop
>
> thanks for your report and analysis. I've fixed this issue in TeX4ht
> sources. I've also added support for \, \; \: \! and \> in the text
> mode, using adapted code from the LaTeX kernel.
>
> This is the new code that should be put to latex.4ht:
>
> \NewConfigure{;}{1}
> \NewConfigure{!}{1}
> \NewConfigure{:}{1}
> \NewConfigure{,}{1}
> \NewConfigure{>}{1}
> \DeclareRobustCommand\:tmspace[2]{%
>    \ifmmode\expandafter\csname a:#1\endcsname%
>    \else\leavevmode at ifvmode\kern#2\fi\relax%
> }
> \DeclareRobustCommand\,{\:tmspace{,}{.16667em}}
> \DeclareRobustCommand\;{\:tmspace;{.2777em}}
> \DeclareRobustCommand\!{\:tmspace!{-.16667em}}
> \DeclareRobustCommand\:{\:tmspace{:}{.2222em}}
> \DeclareRobustCommand\>{\:tmspace;{.2222em}}
> \let\thinspace\,
> \let\medspace\:
> \let\negthinspace\!
> \let\thickspace\;
> \Configure{,}{\mskip\thinmuskip}
> \Configure{;}{\mskip\thickmuskip}
> \Configure{!}{\mskip-\thinmuskip}
> \Configure{:}{\mskip\medmuskip}
> \Configure{>}{\mskip\medmuskip}
>
> Best regards,
> Michal
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://tug.org/pipermail/tex4ht/attachments/20201004/fe397965/attachment.html>