Lars,
> > Hi all, > some days ago somebody asked about how to update an attribute of a > given element. If the attribute node already exists then this is > no problem with XUpdate: > > <xupdate:modifications xmlns:xupdate="..."> > <xupdate:update select="/xpath/to/[EMAIL PROTECTED]"> > new value > </xupdate:update> > </xupdate:modifications> > > Updating a possibly non-existent attribute (as well as element) is > somewhat difficult, because this is not the use case of XUpdate. > Either one inserts (after|before) or append an element|attribute node > or one updates an existing element|attribute node. Its not possible > (with justifiable expense) to find out whether the selected node does > not exist or a node en route. But we need to know exactly this to > decide whether to create the node (i.e. update with implicite creation) > or not. > > Or did I ignore some other facts? > Careful here, select="/xpath/to/[EMAIL PROTECTED]" selects the _element_ node which has a the attribute (node) select="/xpath/to/node/@attribute" selects the attribute (node) Jonathan ---------------------------------------------------------------------- Post a message: mailto:[EMAIL PROTECTED] Unsubscribe: mailto:[EMAIL PROTECTED] Contact administrator: mailto:[EMAIL PROTECTED] Read archived messages: http://archive.xmldb.org/ ----------------------------------------------------------------------
