[luatex] Bug: Wrong behaviour of \limits

Herbert Voss Herbert.Voss at FU-Berlin.DE
Wed Jan 28 15:37:01 CET 2015

Am 28.01.2015 um 14:25 schrieb Henri Menke:

> if I place \limits after a math atom, i.e. {}, no error is thrown.
> luatex should throw "! Limit controls must follow a math operator." as
> the pdftex and xetex engines do.
> Minimal example:
> ${}\limits$
> \bye
> It will typeset using luatex but will throw an error when processed
> using pdftex or xetex.

voss at shania:~/tmp> luatex demo
This is LuaTeX, Version beta-0.79.2 (TeX Live 2015/dev) (rev 5084)
  restricted \write18 enabled.
! Limit controls must follow a math operator.
l.1 ${}\limits


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