On 15/06/2011 15:21, Stephan Hennig wrote:
> schrieb Joseph Wright:
>> On 14/06/2011 23:12, Heiko Oberdiek wrote:
>>
>>    \DeclareBookmarkableCommand\foo{m}
>>      {Standard code}
>>      {Bookmark code}
> 
> The problem applies to PDF meta data too (pdftitle, pdfkeywords etc.).
> Therefore, the command name shouldn't contain the word 'bookmark'.

I'm not sure that to many document commands should end up here, but I
guess you have a point. (An aside: a macro used to store tokens is a
variable, not a document command, but as yet we have no document-level
LaTeX3 command for these cases.)

Basically, this all comes down to having expandable variants of document
commands, and deciding how best to specify these.
-- 
Joseph Wright