[XeTeX] What characters are allowed in filenames?

Ari Meir Brodsky ari.brodsky at utoronto.ca
Thu Aug 30 11:50:41 CEST 2012

What characters does XeLaTeX allow in file names, and why do they seem to be
different from PdfLaTeX?  I've created a simple file named:


It runs fine with both pdfLaTeX and LuaLaTeX, but when I try to run XeLaTeX
on it, I get the following console output:

This is XeTeX, Version 3.1415926-2.4-0.9998 (MiKTeX 2.9)
entering extended mode
! I can't find file `mainfileparens.tex'.
<*> mainfile(parens).tex
Please type another input file name: 

Why does XeLaTeX not accept the same file names that the other engines


Ari M. Brodsky
ari.brodsky at utoronto.ca

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