Omission of pseudo-portname selector information from Macports manual

[SenileFelineS]

Looking at the man page for Macports (man port or port help), there is a section regarding "Other pseudo-portname selectors". However, I can't find an explicit explanation of differences between 'depof', 'rdepof', 'rdepends', 'dependentof', and 'rdependentof'.

One can make a not-too-difficult educated guess to infer that 'dependentof:regex' refers to the ports directly dependent on 'regex', and that 'rdependentof:regex' refers to the ports directly dependent on 'regex' as well as those dependent ports' dependent ports, and the recursive tree of dependents that can be followed up.

From that, one can hopefully infer that 'depof:regex' refers to the ports that 'regex' directly depends on, and that 'rdepof:regex' refers to ports that 'regex' directly depends on as well as those dependency ports' dependency ports, and the recursive tree of dependencies that can be followed down.

However, 'rdepends' is not clearly explained, and 'depends' isn't even listed.

Can this be clarified in the manual and the online guide? It could be easier to understand.