toLowerSpacedChars

enum Things { isUri, isLink }
assert(Things.isUri.toLowerSpacedChars.equal("is uri"));
assert(Things.isLink.toLowerSpacedChars.equal("is link"));

enum Things { isURI, isLink }
auto r = Things.isURI.toLowerSpacedChars;
alias R = typeof(r);
import std.range.primitives : ElementType;
alias E = ElementType!R;
static assert(is(E == dchar));