problems about XML dtd entity

Dear all,

I use R "XML" package to parse DTD files, however, it seems that parseDTD
function cannot extract "entity" information.

================
dtdFile <- system.file("exampleData","foo.dtd", package="XML")
foo.dtd <- parseDTD(dtdFile)
foo.dtd$entities   ###NULL
dtdEntity("img", foo.dtd)  ###NULL
packageDescription("XML")$Version  ### "1.95-2"

================

sessionInfo

=================
R version 2.7.0 (2008-04-22)
i386-pc-mingw32

locale:
LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
States.1252;LC_MONETARY=English_United
States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252

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

other attached packages:
[1] XML_1.95-2

loaded via a namespace (and not attached):
[1] tools_2.7.0

=================

LiGang

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