Pseudo-Portname Selectors

[bernard.remacle at icloud.com]

> depends is what needs the specified port to build or run.
> 
> I'm not getting anything back for dependentof. But depof (or rdepof) is what the specified port needs to build or run.
> 
> examples:
> 
> port echo depends:vim
> 
> (what directly depends on vim to build or run)
> 
> The rdepends: selector is the recursive version of depends:, which is a 
> generalisation that matches the union of what all the depends_* 
> selectors (depends_build:, depends_lib: and so on) would match. Each of 
> the latter matches against the corresponding field in the PortIndex. So 
> rdepends: gives you all available ports that have the specified port 
> anywhere in their recursive dependencies.

When I run

port echo depends:vim

neovim-qt                       
p5-text-vimcolor                
py-neovim                       
rails.vim                       
libvmaf                         
gutils-suite-core               
mpvim                           
neovim-remote                   
nvimpager                       
vim2html                        
vimpager                        
dosfstools

(12 ports are listed)

But when I run

port echo rdepends:vim

dosfstools                      
gutils-suite                    
gutils-suite-core               
gutils-suite-extra              
libvmaf                         
mpvim                           
rails.vim                       
vim2html                        
vimpager  

(9 ports are listed)

My observations: why the differences between ‘depends:' and ‘rdepends:’ ? Perhaps the definition of “recursive” is not clear to me?

-bernard