# Fwd: Re: [texhax] Correcting for math-mode kerning before commas and periods?

Uwe Lück uwe.lueck at web.de
Thu Oct 20 15:49:35 CEST 2005

At 17:08 16.10.05, Oleg Katsitadze wrote:
>On Sun, Oct 16, 2005 at 03:44:35PM +0200, Uwe L?ck wrote:
> > However, the kern (which is a kern indeed!)
> > from the automatic italic correction according to
> > Appendix G Rules 13, 17, 18f can come in only when the
> > math list has been finished and is converted into a
> > horizontal list, and there is no way for an \unkern to
> > interfere here. Even \$\unkern can't, because it is screened
> > off by the final \mathoff.
>
>I was thinking that someone who knows the algorithm very
>well can suggest some trick which would prevent the rules
>from inserting this kern, maybe by changing the letter's
>type from Ord to something else.

Neither \$\mathop f\$\showlists nor \$\mathop{f}\$\showlists
etc. make a difference. Rules 13, 5, 7 etc. explain why.
In some cases a box is built whose width includes the
italic correction. In other cases the change is undone
according to Rule 16.

Best,
Uwe Lück.