On 5/4/2017 10:12 AM, David Carlisle wrote:
the following plain tex file
\ifcsname T\ifincsname e\else \hbox{e}\fi X\endcsname\fi
\bye
works in etex/pdftex/xetex but generates an error in luatex (tl2017 pretest)
ifincsname should be true in the implicit csname started by the outer
ifincsname
does
\suppressifcsnameerror1
help?
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