[luatex] \openin does not find files with no extension

Ulrike Fischer luatex at nililand.de
Sat Jul 27 19:23:16 CEST 2019

Am Sat, 27 Jul 2019 18:57:30 +0200 schrieb luigi scarso:

> We have to decide what to do here:
> \openin\foobar=test-import
> fails in pdftex and luatex

Not for me. pdftex finds a file without extension, luatex not.

\openin0 makefile % makefile exist in the folder
  \ifeof0         % gives: luatex: don't exist; pdftex: exist
   don't exist

\input makefile %input by both engines


Imho luatex should find the file with \openin0 as it does with

> \openin\foobar={test-import}
> fails in pdftex but not in luatex

yes, the luatex syntax has been extended here (which is fine). That
pdftex doesn't know this syntax is documented and not a problem. 

Ulrike Fischer 

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