ZnUrl and mailto

I have a ZnUrl subclass MailtoUrl. It was working for simple cases, but then
I realized that ZnUrl assumes a single username. At first, I figured maybe
mailto was such a specialized case that it wouldn't be worth reexamining,
but then I noticed that ZnUrl implemented #mailToAddress so I figured it was
at least worth asking about.

The reason it seems important to specify the users this way is that,
although the rfc [1] allows users to be specified in the query, it also says
that "[that] form is NOT RECOMMENDED because… some existing clients ignore
"to" <hfvalue>s."

1. https://tools.ietf.org/html/rfc6068



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Cheers,
Sean
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I didn't even know that multiple addresses were possible.
As you know, URL's can basically be anything, it does not seem possible to handle them all.
ZnUrl covers the most common cases, that is already something.
Indeed, as you can see from #testMailTo there is basic support for the mailto: scheme which seems to match the existing instance variables, other variants feel out of scope I guess.

Sven Van Caekenberghe-2 wrote
> other variants feel out of scope I guess.

That makes sense. Re-reading the rfc I'm still not entirely clear (numbered
bullets added):

    Also note that it is syntactically valid to specify both <to> and an
       <hfname> whose value is "to".  That is,

       #1 <mailto:[hidden email],[hidden email]>

       is equivalent to

       #2 <mailto:?to=[hidden email],[hidden email]>

       is equivalent to

       #3 <mailto:[hidden email]?to=[hidden email]>

       However, the latter form is NOT RECOMMENDED because different user
   agents handle this case differently.  In particular, some existing
   clients ignore "to" <hfvalue>s.

Is anyone clear whether "latter" and the warning that "to" <hfvalue>s may be
ignored refers to just #3 or #2 as well?



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Cheers,
Sean
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Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

Sean P. DeNigris wrote
> Re-reading the rfc I'm still not entirely clear

Apparently, multiple mailto addresses are inherently problematic [2], and
the only real/safe/valid solution is using a web form!

2.
https://stackoverflow.com/questions/9278363/emailing-to-multiple-recipients-with-html-mailto-not-working



-----
Cheers,
Sean
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Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html