[R] preformatted and '#' in manual pages

[Gábor Csárdi]

Dear All,

I have the following in a .Rd file:
...
      human readable (not binary) format. The format itself is like
      the following:
      \preformatted{
	\# vertex1name
	vertex2name [optionalWeight]
	vertex3name [optionalWeight]
      }
      Here, the first vertex of an edge is preceded with a pound sign
...

and it is fine with R 2.9.2, but fails on R-devel, when building the
PDF version of the manual:
...
* checking PDF version of manual ... WARNING
LaTeX errors when creating PDF version.
This typically indicates Rd problems.
LaTeX errors found:
! You can't use `macro parameter character #' in vertical mode.
<argument> ...ike the following: \begin {alltt} ##
                                                   vertex1name vertex2name [...
l.9051 listed one per line on subsequent lines.}

* checking PDF version of manual without index ... ERROR

To be precise, this is
* using R version 2.10.0 Under development (unstable) (2009-09-27 r49847)

Is there a way to escape the '#' for LaTeX?

Thanks,
Gabor

-- 
Gabor Csardi <Gabor.Csardi at unil.ch>     UNIL DGM