| process_file {xfun} | R Documentation |
Read a text file with the UTF-8 encoding, apply a function to the text, and write back to the original file.
process_file(file, FUN = identity, x = read_utf8(file))
file |
Path to a text file. |
FUN |
A function to process the text. |
x |
The content of the file. |
If file is provided, invisible NULL (the file is
updated as a side effect), otherwise the processed content (as a character
vector).
f = tempfile()
xfun::write_utf8("Hello World", f)
xfun::process_file(f, function(x) gsub("World", "woRld", x))
xfun::read_utf8(f) # see if it has been updated
file.remove(f)