The documentation is not ideal, but in this case you haven't found the "real documentation" of split on the same page: [http://nim-lang.org/docs/strutils.html#split.i,string,set[char],int](http://forum.nim-lang.org///nim-lang.org/docs/strutils.html#split.i,string,set\[char\],int)
The discoverability could certainly be improved, but [Ctrl-F + enter several times] finds the right proc in most cases. (I think the procs should be grouped by argument types in the index)
