[Rd] Bug in parseNamespaceFile or switch( , ... ) ?

From: Charles C. Berry <cberry_at_tajo.ucsd.edu>
Date: Sat, 27 Nov 2010 14:58:33 -0800

parseNamespaceFile() doesn't seem to detect misspelled directives. Looking at its code I see

         switch(as.character(e[[1L]]),

         <lots of args omitted here>,

 	stop(gettextf("unknown namespace directive: %s",
                 deparse(e)), call. = FALSE, domain = NA))

but this doesn't seem to function as I expect, viz. to stop with an error if I type a wrong directive.

Details:

> # create dummy NAMESPACE file with two bad / one good directives
> cat("blah( nada )\nblee( nil )\nexport( outDS )\n",file="NAMESPACE")
> readLines("NAMESPACE")
[1] "blah( nada )"    "blee( nil )"     "export( outDS )"
> parseNamespaceFile("",".") # now parse it
$imports

list()

$exports

[1] "outDS"

$exportPatterns

character(0)

$importClasses

list()

$importMethods

list()

$exportClasses

character(0)

$exportMethods

character(0)

$exportClassPatterns

character(0)

$dynlibs

character(0)

$nativeRoutines

list()

$S3methods

      [,1] [,2] [,3]

>

So, it picked up 'export' and ignored the other two lines.

Chuck

p.s.

> sessionInfo()
R version 2.12.0 (2010-10-15)
Platform: i386-apple-darwin9.8.0/i386 (32-bit)

locale:
[1] C

attached base packages:
[1] stats graphics grDevices utils datasets methods base >

Charles C. Berry                            Dept of Family/Preventive Medicine
cberry_at_tajo.ucsd.edu			    UC San Diego

http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901

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