>>>>> S J Eglen writes:
> I recently wrote a vignette, with the following at the top of the .Rnw
> file:
> %%\VignetteIndexEntry{How to use look up tables for h() functions}
> %%\VignetteDepends{sjedmin, spatstat}
> Using vExplorer() on this function, I got an error from this part of
> getVigInfo():
> lines <- grep("^%[[:space:]]*\\\\Vignette", file)
> if (length(lines) == 0)
> stop("File ", vig, " does not appear to be a vignette file, ",
> "no vignette metadata available.")
> The error occurs here because the grep expects only one % at the start
> of the line, whereas I had %%. (I often use two at the start of a
> line as I'm used to the ESS/Emacs coding habits of putting ## at the
> start of a line.) Changing %% to % solved the problem okay.
> So, my minor suggestion to R-exts.texi, at line 1011:
> @code{\VignetteIndexEntry} statement is best placed in [EMAIL PROTECTED] comment,
> is that maybe it should say either:
> "in a [EMAIL PROTECTED] comment"
> or
> "in a [EMAIL PROTECTED] comment with a single %"
> although admittedly that sounds a bit clunky!
Hmm, why not change the Sweave code to support multiple comment chars?
The code for index computations on vignettes is based on
vignetteMetaRE <- function(tag)
paste("[[:space:]]*%+[[:space:]]*\\\\Vignette", tag,
"\{([^}]*)\}", sep = "")
-k
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