suggestion of new API function for embedded programming.

While doing some embedded programming and trying to figure out how  
to generate
a hand coded SEXP equivalent of the line
"t.test(x,conf.level=(1-p))$conf.int[2]" I had an idea for an  
addition to the
embedded API.

There are a number of hidden or static parse functions (R_ParseBuffer,
R_Parse1Buffer, etc.) which take an IoBuffer* and returns a parsed  
tree.  If
one or more of these functions were exported to the Rembedded.h API  
we could
do something like the following:

 R_Expr = R_Parse1Buffer(&R_ConsoleIob, 0, &status);
 if (PARSE_OK==status) {
   ...
   value = eval(R_CurrentExpr, rho);
   ...
 }

or possibly simplifying the interface to take the CMDL string:

 R_Expr = R_Parse1Line("t.test(x,conf.level=(1-p))$conf.int[2]",  
&status);

I think this would be a useful addition to the embedding interface,  
and
hopefully not difficult to incorporate by someone more experienced  
with the
internals than I currently am.  I took a few hours to look into  
adding this
interface, but will not have time to try to do so for a few months  
-- I have a
couple of hard and fast deadlines over the next couple of weeks.   
So, I would
like to make the suggestion and participate in the dialog.

 Best regards,

 EBo --

ps: if someone can suggest how to hand code
"t.test(x,conf.level=(1-p))$conf.int[2]" so I can embedd it I would  
be most
appreciative.