R devel - Jul 2009 - Number of functions, data sets, ..., in a package?

Hello: 


      How can one get the number of functions and data sets in a package? 


      I've written a function "PackageSum2" to get an extended
package
summary for an installed package.  I get much of what I want from the 
object returned by "help(package=pkgName)".  For example, 
"help(pac=...)$info[[1]]" is a character vector giving author, 
maintainer, date built, etc.  "help(pac=...)$info[[2]]" is a character
vector with at least one row for each help page;  I can get the number 
of help pages by subtracting the number starting with blank (" ") from
the length.  And "help(pac=...)$info[[3]]" is a character matrix 
describing the vignettes. 


      Is there a reasonably easy way to get numbers of (a) functions and 
(b) data sets in the package? 


      I want this for a the next version of "PackageSum2" in the 
"RSiteSearch" package.  Based partly on previous input from this list,
the package is being renamed to "sos" with the primary 
"RSiteSearch.function" function being renamed to "findFn". 
You can
install the current development version via
'install.packages("sos",
repos="http://R-Forge.R-project.org")'. 


      Thanks,
      Spencer

On Thu, Jul 9, 2009 at 10:33 AM, spencerg<spencer.graves at prodsyse.com>
wrote:
> Hello:
>
> ? ? How can one get the number of functions and data sets in a package?
>
> ? ? I've written a function "PackageSum2" to get an extended
package summary
> for an installed package. ?I get much of what I want from the object
> returned by "help(package=pkgName)". ?For example,
"help(pac=...)$info[[1]]"
> is a character vector giving author, maintainer, date built, etc.
> ?"help(pac=...)$info[[2]]" is a character vector with at least
one row for
> each help page; ?I can get the number of help pages by subtracting the
> number starting with blank (" ") from the length. ?And
> "help(pac=...)$info[[3]]" is a character matrix describing the
vignettes.
Also look at ?packageDescription
>
> ? ? Is there a reasonably easy way to get numbers of (a) functions and (b)
> data sets in the package?
>
> ? ? I want this for a the next version of "PackageSum2" in the
"RSiteSearch"
> package. ?Based partly on previous input from this list, the package is
> being renamed to "sos" with the primary
"RSiteSearch.function" function
> being renamed to "findFn". ?You can install the current
development version
> via 'install.packages("sos",
repos="http://R-Forge.R-project.org")'.
>
Check out the source of codoc in the tools package.
> ? ? Thanks,
> ? ? Spencer
>
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