Thank you Winston for the solution! The only workaround I come up with is to
set options(encoding = "UTF-8"), which is generally undesirable.
I'm wondering is there any chance this patch will be included in future R
version? I have been running into this problem from time to time and the
latest R
After a bit more investigation, I think I've found the cause of the bug,
and I have a patch.
This bug happens with grep(), when:
* Running on Windows.
* The search uses fixed=TRUE.
* The search pattern is a single byte.
* The current locale has a multibyte encoding.
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Here's
