The double colon :: can be confusing here, but the R-exts manual is actually correct. :: does not imply anything about the package namespace; it is merely a separator. The vignette engines are written in the form package::engine, and the engine name _happens_ to be "knitr" as well in this case.
> library(knitr) > str(tools::vignetteEngine(name='knitr', package='knitr')) List of 5 $ name : chr "knitr" $ package: chr "knitr" $ pattern: chr "[.]([rRsS](nw|tex)|[Rr](md|html|rst))$" $ weave :function (file, driver, syntax, encoding = "", quiet = FALSE, ...) $ tangle :function (file, driver, syntax, encoding = "", quiet = FALSE, ...) I admit the engine name "knitr" is also confusing. There are other engine names in knitr, though. For example, knitr::docco_classic http://cran.r-project.org/web/packages/knitr/vignettes/docco-classic.html Regards, Yihui -- Yihui Xie <xieyi...@gmail.com> Web: http://yihui.name Department of Statistics, Iowa State University 2215 Snedecor Hall, Ames, IA On Wed, Oct 2, 2013 at 9:24 PM, John Maindonald <john.maindon...@anu.edu.au> wrote: > In Section 1.4.2 of "Writing R Extensions" > %\VignetteEngine{knitr::knitr} > should be > %\VignetteEngine{knitr::knit} > >> sessionInfo() > R version 3.0.2 (2013-09-25) > Platform: x86_64-apple-darwin10.8.0 (64-bit) > > Is this sort of thing best reported here, or is a huge report in order? > > John Maindonald email: john.maindon...@anu.edu.au > phone : +61 2 (6125)3473 fax : +61 2(6125)5549 > Centre for Mathematics & Its Applications, Room 1194, > John Dedman Mathematical Sciences Building (Building 27) > Australian National University, Canberra ACT 0200. ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
