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Hi all, I'm getting the following error from substring: > substr("<I>Jens Oehlschl\xe4gel-Akiyoshi", 1, 100) Error in substr("<I>Jens Oehlschl\xe4gel-Akiyoshi", 1, 100) : invalid multibyte string at '<e4>gel-A<6b>iyoshi' Is that normal / intended? I've tried setting the Encoding/locale to Latin-1/UTF-8 but that does not help. nchar gives m...

...xpecting that if one of them errors because of an unknown encoding then the other should as well. Even better, if regexpr works, why shouldn't substr work as well? Incidentally the analogous stringi function stri_sub works fine in this case: > stringi::stri_sub("<I>Jens Oehlschl\xe4gel-Akiyoshi", 1, 100) [1] "<I>Jens Oehlschl\xe4gel-Akiyoshi" But the stringi analog to nchar gives a similar warning: > stringi::stri_length("<I>Jens Oehlschl\xe4gel-Akiyoshi") [1] NA Warning message: In stringi::stri_length("<I>Jens Oehlschl\xe4gel...