Indeed it does! Christian, thank you so much for all your help. I've got everything I need, not only for this particular task, but I can probably extend what you've shown me to other related issues where BaseX can prove invaluable for saving time in my work processes. This has been a thoroughly satisfying experience.
Best regards, Michael On Mon, May 30, 2016 at 4:42 PM, Christian Grün <[email protected]> wrote: > > "\Program Files (x86)\BaseX\bin\basex" query.xq -iC:/data/input.xml > > This should work: > > > "\Program Files (x86)\BaseX\bin\basex" -iC:/data/input.xml query.xq > > In BaseX, the order of arguments is important. > > > > > I get in response: > > > > Stopped at C:/scripts/query.xq, 2/19: > > [XPDY0002] root(): no context value bound. > > > > It's the same whether I say > > > > -iC:/data/input.xml > > -i/data/input.xml > > -iC:\data\input.xml > > -i\data\input.xml > > > > Thanks, > > > > Michael > > > > > > On Mon, May 30, 2016 at 2:20 PM, Christian Grün < > [email protected]> > > wrote: > >> > >> > If I just remove "$input" > >> > from the script I get a "no context value bound" error if I say > >> > > >> > -i/my/path/to/input.xml > >> > >> It should work as described (I frequently use it by myself). Could you > >> try again, or provide me with a little self-contained example? > >> > >> Cheers, > >> Christian > >> > >> > >> > >> > On Thu, May 26, 2016 at 11:21 PM, Christian Grün > >> > <[email protected]> > >> > wrote: > >> >> > >> >> Hi Michael, > >> >> > >> >> > 1) There'll be a new version of the input file arriving > periodically, > >> >> > so > >> >> > I'd > >> >> > prefer to be able to do everything at the command line without > having > >> >> > to > >> >> > create the database inside the GUI. Not sure of the best way to go > >> >> > about > >> >> > that. > >> >> > >> >> Using the GUI was just an example. You can create new databases via > >> >> commands (CREATE), XQuery (db:create) or our APIs. Please check out > >> >> our documentation for more hints. > >> >> > >> >> > 2) In the GUI for now, I can perform the replace with the map, or I > >> >> > can > >> >> > run > >> >> > the for loop that writes out all the files. But I get an > "Unexpected > >> >> > end > >> >> > of > >> >> > query" error when I try to do both, so what's the problem with my > >> >> > syntax? > >> >> > >> >> In XQuery, multiple expressions can be separated with commas. > >> >> > >> >> Note, however, that XQuery is a functional language; as such, it is > >> >> not possible to first update items and then access them in the same > >> >> query that easily. There are various alternatives to get around this > >> >> limitation: > >> >> > >> >> 1. Use a BaseX command script to run all operations [1]: > >> >> > >> >> <commands> > >> >> <create-db name='input'>...path/to/input.xml</create-db> > >> >> <xquery><![CDATA[ > >> >> let $map := ... > >> >> ]]></xquery> > >> >> <xquery> > >> >> for $page in ... > >> >> <xquery> > >> >> </commands> > >> >> > >> >> 2. Use copy/transform/return or update to do all updates in > >> >> main-memory [2] and pass them on to your file:write function. This > >> >> could e.g. look as follows: > >> >> > >> >> let $input := doc('input.xml') > >> >> let $map := map:merge( > >> >> for $part in $input//part > >> >> return map:entry(string-join($part/partinfo/*, '/'), $part) > >> >> ) > >> >> for $page in $input//page > >> >> let $new-part := $page update { > >> >> for $partinfo in .//unit/partinfo > >> >> let $part := $map(string-join($partinfo/*, '/')) > >> >> return replace node $partinfo with element part { $part/node() } > >> >> } > >> >> return file:write('data/'|| $page/@key || '.xml', $page, > >> >> map{ "omit-xml-declaration": "no" }) > >> >> > >> >> The good thing here is that your replace operations won’t need to be > >> >> cached until the very end; they will directly be run on each page > >> >> element (and not persisted on disk; but this is something you don’t > >> >> need anyway it seems) > >> >> > >> >> Christian > >> >> > >> >> [1] http://docs.basex.org/wiki/Commands#Command_Scripts > >> >> [2] > http://docs.basex.org/wiki/XQuery_Update#Non-Updating_Expressions > >> > > >> > > > > > >
