Hi Christian, The version 13 docs have "In XQuery, functions are called methods if they are embedded in maps." I think something like declare variable $icc:componentMap as map(*) := map { 'QR-code': icc:isQRcode#1, 'appendix': icc:isAppendix#1, 'backmatter': icc:isBackmatter#1, .... wouldn't count because it's references, rather than embedded. (I think embedded = anonymous function definition in the map) Right now that map gets used as $icc:componentMap($elementName)($element) to call a function based on which element it is to do something per-element-name to generate an ID component. (Sections have "Sec" prefixes, parts have "Part" prefixes, etc.) I think the =?> operator doesn't provide a way to do this. The method arrow expects the data is ALSO in the map. Am I wrong about that? Thanks! Graydon On Thu, Mar 26, 2026, at 04:25, Christian Grün via BaseX-Talk wrote:
Dear Eliúd,
The syntax of method calls was changed in the 4.0 draft of the specification. The %method annotation was replaced by a "=?>" operator:
let $number := { 'value': 1, 'inc': fn { map:put(., 'value', ?value + 1) } } return $number =?> inc()
This is mostly syntactic sugar. In XQuery 3.1, the same code could have been written as:
let $number := map { 'value': 1, 'inc': function($map) { map:put($map, 'value', $map?value + 1) } } let $inc-function := $number?inc return $inc-function($number)
The syntax of the newest version of BaseX is currently documented in the 13 branch of our Wiki [1,2]. Due to numerous changes in the spec, it is about time for a BaseX 13 release.
Hope this helps, Christian
[1] https://docs.basex.org/main/XQuery_4.0#methods [2] https://docs.basex.org/13/XQuery_4.0#methods
________________________________________ Von: Eliúd Santiago Meza y Rivera via BaseX-Talk <basex-talk@mailman.uni-konstanz.de> Gesendet: Donnerstag, 26. März 2026 03:06 An: BaseX Betreff: [basex-talk] Fwd: Re: [XQST0045] Annotation %method is in reserved namespace.
I tested you suggestions and it's works, the last one with little variation:
let $number := { 'value': 1, 'inc': fn { map:put(., 'value', .?value + 1) } } return $number=?>inc()
I was testing 'cause I need to use values objects.
Thanks!!!!! ---------- Forwarded message --------- From: Martin Honnen via BaseX-Talk <basex-talk@mailman.uni-konstanz.de<mailto:basex-talk@mailman.uni-konstanz.de>> Date: Wed, Mar 25, 2026 at 6:55 PM Subject: [basex-talk] Re: [XQST0045] Annotation %method is in reserved namespace. To: <basex-talk@mailman.uni-konstanz.de<mailto:basex-talk@mailman.uni-konstanz.de>>
On 26/03/2026 01:12, Eliúd Santiago Meza y Rivera via BaseX-Talk wrote: Hello,
I was testing the feature https://docs.basex.org/main/XQuery_4.0#methods, but the examples raise the error XQST0045
let $vector := { 'x': 5, 'y': 6, 'sum': %method fn() { ?x + ?y } } return $vector =?> sum()
In the fiddle the variation
let $vector := { 'x': 5, 'y': 6, 'sum': fn { ?x + ?y } } return $vector =?> sum()
works
let $number := { 'value': 1, 'inc': %method fn() { map:put(., 'value', ?value + 1) } } return $number?inc()
as does
let $number := { 'value': 1, 'inc': fn { map:put(., 'value', ?value + 1) } } return $number=?>inc()
Not sure about the state of the annotation %method
-- LSC Eliud Santiago Meza y Rivera