[XeTeX] additional beginL endL nodes in math

[Arthur Reutenauer]

> In that case (and this is partially off-topic), what is the correct
> mechanism by which one should instruct XeTeX (current version : TL-2014)
> to reverse that stretch of text ?

  \beginR, \endR, it's in the subject of this thread.

>                                    I have a 544pp book that goes to
> print on Friday, and it contains Hebrew fragments which this thread has
> caused me to re-examine; it would indeed seem that they are being set
> incorrectly, LTR instead of RTL ...

  No comment.

	Arthur