[Rd] inject html code into Rd file

[Duncan Murdoch]

On 02/04/2010 7:13 AM, Romain Francois wrote:
> Le 02/04/10 13:07, Duncan Murdoch a écrit :
>> On 02/04/2010 6:17 AM, Romain Francois wrote:
>>> Hello,
>>>
>>> I'm trying to inject html code into an Rd file. For example :
>>>
>>> \name{test}
>>> \alias{test}
>>> \title{test}
>>> \description{
>>> \if{html}{
>>> \Sexpr[stage=render,results=text,echo=FALSE]{
>>> "<b>hello</b>"
>>> }
>>> }
>>> }
>>>
>>> when this file is rendered, instead of having "hello" in bold, I get
>>> <b>hello</b>, i.e. characters < and > are replaced with html entities
>>> : < and >
>>>
>>> Is there a way to turn this off ?
>> Yes, if you wrap it in \out{}. The example in the manual is
>>
>> \if{latex}{\out{\alpha}}\ifelse{html}{\out{α}}{alpha}
>>
>> Duncan Murdoch
> 
> yes, I saw that in WRE, I should have been more specific.
> 
> 
> what if instead of a trivial string like "<b>hello</b>" the text is to 
> be computed by some function. For example:
> 
> print( xtable( iris), type = "html" )

I think this should do it:

\Sexpr[stage=render,results=rd,echo=FALSE]{
paste("\\out{", "<b>hello</b>, "}", sep="")}

but this stuff hasn't been tested much, so there might be problems...

Duncan Murdoch