Extend LaTeX's \ref capability
The package extends the LaTeX labelling system: whenever a label is set, the values of counters (selected by the user) are recorded, along with the label. The value of these counters can be recalled with a command similar to \pageref. The package also adds commands \s[name]ref (for each counter [name] that the user has selected); these commands display something only if the value of the [name] counter is changed from when the label was set. Many commands are provided to serve as a macro programming environment for using the extended labels.
You can contact the maintainers of this package via email at
texlive dash maintainers at fedoraproject dot org.