What does \Sexpr[results=rd]{} exactly mean in Rd?
On Sun, 2011-10-16 at 19:36 -0500, Yihui Xie wrote:
Hi, I have spent a few hours on the R-exts manual and the documentation of parse_Rd() (as well as the PDF document in the references), but I still have not figured out what results=rd means. I thought I could use an R code fragment to create an Rd fragment dynamically. Here is an example, in which I was expected the output to be a describe list <DL> in HTML, but it turns out not to be true.
Perhaps best not to cross post to several internet resources at once. I replied to the same Q on StackOverflow: http://stackoverflow.com/q/7788628/429846 Suffice it to say that your example works for me with 2.13.1 (still need to compile 2.13.2 on my workstation). I left some additional comments and examples, which might help understand this. I had trouble when I first started playing this and didn't pursue further, but I think I am starting to understand how to use this now after taking a look when I tried to answer your Q. G
(I was actually building a package with Rd's containing \Sexpr{}
instead of really using Rd2HTML(); the content was not rendered after
I run R CMD build.)
des <- "\\describe{\\item{def}{ghi}}"
con <- textConnection(c("\\title{abc}\\name{abc}",
"\\details{\\Sexpr[results=rd,stage=build]{des}}"))
z <- parse_Rd(con)
Rd2HTML(z, stages = "build")
close(con)
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><title>R: abc</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="stylesheet" type="text/css" href="R.css">
</head><body>
<table width="100%" summary="page for abc"><tr><td>abc</td><td
align="right">R Documentation</td></tr></table>
<h2>abc</h2>
<h3>Details</h3>
<p>defghi</p>
</body></html>
sessionInfo()
R version 2.13.2 (2011-09-30) Platform: x86_64-pc-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8 [7] LC_PAPER=en_US.UTF-8 LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] tools stats graphics grDevices utils datasets methods [8] base other attached packages: [1] devtools_0.4 loaded via a namespace (and not attached): [1] RCurl_1.6-10 Thanks! Regards, Yihui -- Yihui Xie <xieyihui at gmail.com> Phone: 515-294-2465 Web: http://yihui.name Department of Statistics, Iowa State University 2215 Snedecor Hall, Ames, IA
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