[R-pkg-devel] ω, α, η, ² in .Rd files

[Uwe Ligges]

On 10.02.2017 14:52, Jonathon Love wrote:
> hi uwe,
>
>
> On 10/2/17 23:40, Uwe Ligges wrote:
>>
>>
>> On 10.02.2017 03:19, Jonathon Love wrote:
>>> hi,
>>>
>>> i'm trying to include some greek characters in my package documentation,
>>> but am having difficulty getting it to work on windows. it works find on
>>> macOS, linux, but throws errors on windows:
>>>
>>> https://win-builder.r-project.org/guwReC6lhQaU/00check.log
>>>
>>> so far i have tried:
>>>
>>> ω
>>> \u03C9
>>> \omega
>>> \eqn{\omega}
>>> \symbol{"03C9}
>>> \enc{ω}{omega}
>>
>>
>>
>> The latter is right in principle, but two issues:
>>
>> 1- you use it in an .R file which should no assume a special encoding.
>> I do not use roxygen2, hence don't know how it can work at all, I'd
>> simply do it in the Rd file directly.
>>
>> 2- Thge LaTeX version on winbuilder cannot deal with an UTF-8 omega
>> symbol. Hence I'd rather write
>> \eqn{\omega}{omega}
>> or to square it:
>> \eqn{\omega^2}{omega^2}
>
> thanks for explaining this
>
> unfortunately this doesn't work with the html or plain-text help (i
> assume it does work with the PDF manuals). in the html/plain text help,
> it always puts the plain ascii 'omega', rather than the actual symbol.

Right, that was intended.

>
> so it's seeming like it's not possible to have special chars in the html
> or plain-text help, without upsetting the winbuilder?

You can try to insert \enc{}{} versions, but then in the Rd files, that 
is not related to winbiulder only but R in general.
And you have to exclude LaTeX as the UTF-8 symbol for omega cannot be 
handled by all LaTeX versions, apparently.

Best,
Uwe


> if i have to use the plain ascii 'omega', 'eta', 'alpha', it won't be
> the end of the world.
>
> with thanks
>
> jonathon
>
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