From murdoch at stats.uwo.ca  Sun Oct 14 17:56:39 2007
From: murdoch at stats.uwo.ca (Duncan Murdoch)
Date: Sun, 14 Oct 2007 11:56:39 -0400
Subject: [Rd] Inconsistent behavior of sQuote and dQuote
In-Reply-To: <47122B52.80401@aon.at>
References: <47122B52.80401@aon.at>
Message-ID: <47123C37.3070706@stats.uwo.ca>

On 14/10/2007 10:44 AM, cstrato wrote:
> Dear all
> 
> When comparing sQuote("text") and dQuote("text") on MacOS X and Linux FC4
> I get an inconsistent behavior (using the new release version R-2.6.0):
> 
> sQuote: On Mac I get the correct result "'text'", but on FC4 the 
> incorrect result "`text?".

Those both look correct to me (but not the same).  What do you see?

> dQuote: On Mac I get the correct result "\"text\"", but on FC4 the 
> incorrect result ""text"".

The second one looks wrong here (no escapes shown), but I suspect those 
inner quotes aren't really the same as the outer quotes, and that's why 
they're not escaped.

If you don't want the fancyquotes at all, you can use 
options(useFancyQuotes=FALSE).  In a package, it would be polite to do 
this only locally, i.e. have something like

save <- options(useFancyQuotes=FALSE)
on.exit(options(save))

in functions that call sQuote or dQuote, because options() belong to the 
user, not to you.

Duncan Murdoch

> 
> For this reason I cannot use these functions in my package.
> 
> Best regards
> Christian
> _._._._._._._._._._._._._._._._
> C.h.i.s.t.i.a.n S.t.r.a.t.o.w.a
> V.i.e.n.n.a       A.u.s.t.r.i.a
> _._._._._._._._._._._._._._._._
> 
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[Rd] Inconsistent behavior of sQuote and dQuote
Duncan Murdoch