From hb at stat.berkeley.edu  Thu Sep  3 15:47:32 2009
From: hb at stat.berkeley.edu (Henrik Bengtsson)
Date: Thu, 3 Sep 2009 06:47:32 -0700
Subject: [Rd] Package names
In-Reply-To: <4A9FC6B5.3030501@statistik.tu-dortmund.de>
References: <f8e6ff050909030611j76caa1cay22e07b43c75baa@mail.gmail.com> 
	<4A9FC6B5.3030501@statistik.tu-dortmund.de>
Message-ID: <59d7961d0909030647n17259ee0o378bb0a4ef97994@mail.gmail.com>

2009/9/3 Uwe Ligges <ligges at statistik.tu-dortmund.de>:
>
>
> Hadley Wickham wrote:
>>
>> Currently, writing R extensions states: "The ?Package? and ?Version?
>> fields give the name and the version of the package, respectively. The
>> name should consist of letters, numbers, and the dot character and
>> start with a letter. "
>>
>> Now that _ is no longer an assignment operator, could it be added to this
>> list?
>
>
> Hadley, it is used as the separator between packagename and version number
> in the name of a package. And (at least my) code relies on the fact that
> there is exactly one "_" in the filename.

I agree that this opens up for potential problems, but that one should
be possible to solve using correct regular expressions, just like it
was done to allow for periods ('.') in package names.

My $.02

/Henrik

>
> Best,
> Uwe
>
>
>
>
>> Hadley
>>
>
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>



[Rd] Package names
Henrik Bengtsson