[Rd] Inconsistent behavior of sQuote and dQuote

Duncan Murdoch murdoch at stats.uwo.ca
Sun Oct 14 17:56:39 CEST 2007

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)

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
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