Re: [Rd] readCitationFile encoding

From: Simon Urbanek <simon.urbanek_at_r-project.org>
Date: Thu, 31 Dec 2009 14:50:00 -0500

On Dec 31, 2009, at 10:05 AM, Jens Elkner wrote:

> On Thu, Dec 31, 2009 at 08:01:15AM +0000, Prof Brian Ripley wrote:

>> On Thu, 31 Dec 2009, Jens Elkner wrote:

> Hi,
>
>>> does anybody know, how to enforce a certain encoding for
>>> readCitationFile()? Haven't found any usable documentation for this :(
>> 
>> Really?

>
> Yes. Well, just started to dive into R and that's probably the problem
> (like in old UNIX times), the help aka man pages are very useful and
> sufficient, if you know the language/system ... ;-)
>
>> From the help file in current versions of R (2.10.1 patched, 
>> R-devel)
>> 
>>     ˇreadCitationFile˘ make use of the ˇencoding˘ element (if any) of
>>     ˇmeta˘ to determine the encoding of the file.

>
> Ah - ok, haven't applied the latest release.diff. But anyway, for a
> newbie it is not easy to find out, what "meta" is expected to be.
>
>> so
>> readCitationFile(basecit, list(encoding="latin1"))

>
> Yepp - with a leading uppercase E it works. Thanx a lot!!! :)
>
>> is probably what you are looking for.  And PLEASE do use the 
>> recommended portable encoding names.

>
> OT: Wondering, what does "recommended portable encoding names" in this
> context mean (e.g. AFAIK 'latin1' is not a standardized name ...).

It is in R -- since no standard name for that encoding exists in general R maps "latin1" to whatever the OS expects this to be -- see ?Encoding.

> BTW: Just build R-2.10.1 on Solaris Nevada b129 (x86_64) using its native
> iconv facilities in libc and sunperf libs (wrt. BLAS/LAPACK) only. It
> works now and all checks are saying, everything is ok.
>

>>> BTW: 'make check' is a relativ long running task and if one changes
>>> a source file, all checks are ran again til it gets to the code in
>>> question (in my case tests/Examples/utils-Ex.Rout.fail). Is there
>>> a shortcut to jump immediately to the utils tests?
>> 
>> No, but many sections can be suppressed -- see check --help and the 
>> environment variables discussed in the R Internals manual.

>
> Ahh - good hint - help("check") wasn't really fruitful. However,
>
> elkner.idev2 build/R-2.10.1/bin > ./check --help
> Can't locate File/Copy/Recursive.pm in @INC (@INC contains: ...
>
> So still need to do a little bit tweaking ...
>

.. rather reading the docs ;). It's R CMD check --help (since we're on R-devel knowledge of basics is assumed).

Cheers,
Simon



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