删除R / Shiny中的疯狂角色

Question

I have a long list in the format like such:

group1 » group2 » group3

Within R, I can use a gsub('»', '-', x) where x is the vector structured like above.

However, I am running into errors when trying to utilize this functionality when loading this into a shiny app. I've tried multiple ways to use gsub , chartr , and some other ones.

Also, The Â character is not captured when using [[:punct:]] .

Any suggestions?

Answer 1

group1 » group2 » group3 is a UTF-8 encoded string and therefore it would be best if the R application is coded to read the strings with conversion from UTF-8 to Latin 1 as explained on Read or Set the Declared Encodings for a Character Vector and Read text as UTF-8 encoding .

» is the UTF-8 encoded right-pointing double angle quotation mark whereby the 2 bytes with the hexadecimal values C2 BB are interpreted and displayed (wrong) with code page Windows-1252 or ISO 8859-1 (Latin-1).

gsub("\\\\xC2?\\\\xBB", "-", x) could be used to find in a UTF-8 encoded string or single byte encoded string (Latin 1 or Windows 1252) all right pointing guillemets and replace each of them by a hyphen character.