Hello R-devel!
Here's an Rd file that produces a large empty area when converted to
HTML:
\name{repro}
\title{title}
\description{description}
\details{
Hello
\Sexpr[stage=build,results=hide]{
invisible(NULL)
invisible(NULL)
invisible(NULL)
invisible(NULL)
invisible(NULL)
invisible(NULL)
invisible(NULL)
invisible(NULL)
invisible(NULL)
invisible(NULL)
invisible(NULL)
"" # workaround: remove results=hide and use the return value
}
}
This seems to happen because \Sexpr gets expanded to \verb{ as many
newlines as there were code lines } by processRdChunk, by first storing
a newline for each line of the code:
https://github.com/wch/r-source/blob/d7a4ed9aaeee1f57c3c165aefa08b8d69dfe59fa/src/library/tools/R/RdConv2.R#L257
...and then the newlines get translated to \verb because res is
not empty:
https://github.com/wch/r-source/blob/d7a4ed9aaeee1f57c3c165aefa08b8d69dfe59fa/src/library/tools/R/RdConv2.R#L332
As long as Rd above doesn't stem from my misuse of \Sexpr, I would like
to propose the following patch, which seems to fix the problem:
Index: src/library/tools/R/RdConv2.R
===================================================================
--- src/library/tools/R/RdConv2.R (revision 80675)
+++ src/library/tools/R/RdConv2.R (working copy)
@@ -329,6 +329,8 @@
}
} else if (options$results == "text")
res <- tagged(err, "TEXT")
+ else if (options$results == "hide")
+ res <- tagged("", "COMMENT")
else if (length(res)) {
res <- lapply(as.list(res), function(x) tagged(x, "VERB"))
res <- tagged(res, "\\verb")
There are probably other ways of fixing this problem, e.g. by only
populating res if options$results != "hide" or only appending newlines
if res is non-empty.
--
Best regards,
Ivan
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
