Extremely configurable ellipses with formats for various style manuals
The xellipsis package provides a system for configuring (almomst) every possible aspect of ellipses, including preceding and proceeding characters; the character itself; distances before and after each of these; and number of characters. It comes with both a compatibility option for standard LaTeX \ldots as well as preset package options for the Chicago Manual of Style (Turabian); the Bluebook; and MLA guidelines.
You can contact the maintainers of this package via email at
texlive dash maintainers at fedoraproject dot org.