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Mail Archives: cygwin/2012/03/30/12:05:14

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Message-ID: <4F75D990.9030706@cs.utoronto.ca>
Date: Fri, 30 Mar 2012 12:04:32 -0400
From: Ryan Johnson <ryan DOT johnson AT cs DOT utoronto DOT ca>
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To: cygwin AT cygwin DOT com
Subject: Re: cygstart doesn't handle question marks in mailto URLs
References: <4F75B4D7 DOT 8060407 AT cornell DOT edu> <4F75B89A DOT 8050301 AT cs DOT utoronto DOT ca> <20120330151432 DOT GR30721 AT calimero DOT vinschen DOT de>
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On 30/03/2012 11:14 AM, Corinna Vinschen wrote:
> On Mar 30 09:43, Ryan Johnson wrote:
>> On 30/03/2012 9:27 AM, Ken Brown wrote:
>>> If I type `cygstart mailto:recipient?subject=subject' at a Cygwin
>>> bash prompt, I expect my default Windows mail program to start an
>>> outgoing message with `recipient' as recipient and `subject' as
>>> subject. (This is what happens if I type the same URL into a
>>> `Start Menu ->  Run' box.) What happens instead is that
>>> `recipient?subject=subject' shows up as the recipient, with the
>>> question mark replaced by something unprintable, and the subject
>>> is blank.
>>>
>>> Is this a bug in cygstart, or am I misunderstanding something?
>> I suspect a bug in the way cygwin1.dll handles conversion from unix-
>> to windows-style paths.
> http://cygwin.com/acronyms/#IAFNAB
>
> http://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-specialchars
Makes sense... for files, but we're dealing with a URL here, so it *is* 
a bug IMO (but you're right, not a bug in cygwin's handling of 
windows-style paths).

Cygstart knows it's dealing with a URL. It doesn't try to look for a 
file whose name starts with "mailto:", for example, nor does it escape 
the otherwise-forbidden ':' character.

The proper behavior would either enforce the forbidden character set and 
escaping methods that apply to URLs, or else pass the argument through 
unmodified and let Windows (or the target app) complain if there's a 
problem. Either way, though, "file:" urls would have to be a special case.

And yes, SHTDI, and TSINM (that somebody is not me).

Ryan


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