On Mon, 20 Dec 2004, Hendri Adriaens uploaded an update to his packages
xkeyval (1.8a) and pst-xkey (1.2a)
xkeyval is an extension of the keyval package and offers additional macros for setting keys and declaring and setting class or package options. The package allows the programmer to specify a prefix to the name of the macros it defines for keys, and to define families of key definitions; these all help use in documents where several packages define their own sets of keys.
pst-xkey is an adaptation of the techniques of xkeyval to the needs of the family of packages associated with pstricks, so that those packages can safely, and with relative ease, use key-value syntax in their commands.
License is lppl.
Location on CTAN: macros/latex/contrib/xkeyval
Announcement text: ----------------------------------------------- The updates are related to three small bugs that were discovered on 2004/12/20. Two are related to the support of the empty family (eg, for pstricks). The previous update avoided removing spaces from key and familynames and some macros were adjusted. I overlooked the fact that one of those macros removed the empty family from the list of families.
The last bug that was solved was in reusing a macro that was redefined intermediately in case presets were used.
I hope no more bugs will show up now. ------------------------------------------------
Thanks for the update
For the CTAN Team Rainer Schöpf