[Roxygen-devel] bug with NA argument default?

[Bengoechea Bartolomé Enrique (SIES 73)]

Hi, I'm new to this list, so first let me say thank you for developing this tool. Being so used to maintain docs with code in other languages this should be a real time-saver.
 
I'm having a problem with roxygen. It appears both with v0.1 in CRAN for R 2.8.1, and in the latest version available on R-Forge. Session info below. 
 
An error is raised when parsing the following function definition:
 
-- FILE SNIPPET -----
lfactor <- function(x, lookup, levels=sort(unique.default(x), na.last = TRUE),
    labels=levels, exclude=NA, ordered=is.ordered(x), local.ltable) {
-----------------------------

> make.Rd.roclet()$parse('lfactor.R')
 
Error in if (is.null.string(default)) name else sprintf("%s=%s", name,  : 
  missing value where TRUE/FALSE needed
 
 
After some tests, I verified that the problem comes from the NA in "exclude=NA". If I remove this default value, the parsing is done correctly.
 
Best,
 
Enrique
 
 
> sessionInfo()
R version 2.8.1 (2008-12-22) 
i386-pc-mingw32 
 
locale:
LC_COLLATE=Spanish_Spain.1252;LC_CTYPE=Spanish_Spain.1252;LC_MONETARY=Spanish_Spain.1252;LC_NUMERIC=C;LC_TIME=Spanish_Spain.1252
 
attached base packages:
[1] stats     graphics  grDevices datasets  utils     methods   base     
 
other attached packages:
[1] roxygen_0.1     rcom_2.0-4      rscproxy_1.0-12
 
loaded via a namespace (and not attached):
[1] tools_2.8.1

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