Ports recommending other ports

[Jeremy Lavergne]

>>> Hypothetical addition to port graphviz:
>>>
>>> if {${os.platform} == "darwin"} {
>>>    if {${os.major} >= 9} {
>>>        suggest_supplements-append port:graphviz-gui
>>>    } else {
>>>        suggest_supplements-append port:graphviz-oldgui
>>>    }
>>> }
>>>
>>> Hypothetical additions to port graphviz-oldgui:
>>>
>>> if {${os.major} >= 9} {
>>>    suggest_alternatives-append port:graphviz-gui
>>> }
>>>
>>> (I used "suggest" instead of "recommend" in the keyword names  
>>> because
>>> people have more trouble spelling "recommend".)
>>
>> If people have problems spelling "recommend", they will probably also
>> have problems with "supplements"?
>
> No kidding. Got any better ideas?

Or --- even more scarily --- produce an IDE for creating portfiles.

I'm sure someone could create an emacs or vi file for this pretty  
quickly:  Keywords can be autocompleted, and those that are misspelled  
will not be syntax highlighted so they should stand out.
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