For ensuring file closing:
var fh = open(filename)
defer close(fh) # close fh at the end of current block
process(fh)
Encoding is not part of the file opening process in Nim. A file is just read
byte for byte. If, for example, you want to open a latin-1 file and get a UTF-8
string, you could do this:
import encodings
var content = convert(readAll(filename), srcEncoding="ISO-8859-1")
Note that I am using `readAll` which opens and closes the file automatically.
You can also use the method shown above, instantiate an `EncodingConverter` and
then read and convert each line / character / whatever individually.
