[MacPorts] #58505: Omission of pseudo-portname selector information from Macports manual

[MacPorts]

#58505: Omission of pseudo-portname selector information from Macports manual
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 Reporter:  SenileFelineS  |      Owner:  (none)
     Type:  enhancement    |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  guide          |    Version:  2.5.4
 Keywords:                 |       Port:
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 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.

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Ticket URL: <https://trac.macports.org/ticket/58505>
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