[Rd] Is nested namespace supported?

Peng Yu pengyu.ut at gmail.com
Sat Jan 9 22:36:41 CET 2010


On Sat, Jan 9, 2010 at 3:03 PM, Romain Francois
<romain.francois at dbmail.com> wrote:
> On 01/09/2010 09:53 PM, Peng Yu wrote:
>>
>> Could somebody let me know if there is nested name space supported?
>> For example, is it possible to define a function in the name space
>> 'nested_namespace' which is nested in the name space 'some_namespace'?
>>
>> some_namespace:::nested_namespace:::a_function()
>>
>> I checked Section 1.6 of R-exts.pdf. It seems that nested namespace is
>> not supported, right?
>
> It is not even grammatically valid:
>
>> parse( text = "foo::bar::foobar" )
> Error in parse(text = "foo::bar::foobar") :
>  unexpected '::' in "foo::bar::"
>
>> parse( text = "foo:::bar:::foobar" )
> Error in parse(text = "foo:::bar:::foobar") :
>  unexpected ':::' in "foo:::bar:::"

Do you mean nested namespace is not supported in R?



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