[XeTeX] ifcat changed?

Jonathan Kew jfkthame at gmail.com
Sat Apr 15 14:18:13 CEST 2017

This sounds like a bug. Offhand, I don't know what changed to cause 
this, but it probably shouldn't have!

Filing an issue at https://sourceforge.net/projects/xetex/ would be 
useful, to help us keep track.


On 15/04/2017 12:26, Bruno Le Floch wrote:
> Dear all,
> The primitive conditional "\ifcat\relax\cr true\else false\fi" gives
> "true" in pdfTeX, LuaTeX, (e)(u)pTeX, and XeTeX from some time ago
> (could be years), but "false" in XeTeX 0.99996
> It would be useful for me to know which of \ifcat, \relax, and \cr
> changed, to determine whether I should just special-case \cr in my
> package, or use some other tool than \ifcat.
> Best regards,
> Bruno
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