On 6/18/2020 3:24 PM, Gerben Wierda wrote:

Given the following XML snippet

<Foo name="SubFoo Level One" id="Foo"> <Foo name="SubFoo Level Two" id="Foo_2"> <bar id="Bar" name="A Bar"> <bar name="Bar Level Three" id="Bar_2"> <Foo id="oma">OmaFoo</Foo> </bar> </bar> <Foo name="Fuzz Level Four" id="Fuzz"/> </Foo> <Foo name="SubFoo Level Two" id="Foo_3"> <fuzz name="Fuzz" id="Fuzz_2"/> </Foo> </Foo> </opa>

How would I go about to find the depth of an item found with an LPATH? E.g.

//[id="Foo_3"] would find a node at depth 2 (assuming <opa> is at level 0) while //[id=“Fuzz_2"] would find a node at depth 3 and in either cases I would like to get that number (2 or 3) as well as the actual node. I can assume the values for ‘id’ are unique.

I was wondering how I could go about finding the ‘depth’ of an item in the XML when using the LMTX built-in functions to work with XML. I don’t think there is a default function for that, is there? You don't deserve an answer because this is not a MWE!

\startbuffer[test] <something> <what> <what> here </what> </what> </something> \stopbuffer \startxmlsetups xml:mysetups \xmlsetsetup{#1}{something|what}{xml:*} \stopxmlsetups \xmlregistersetup{xml:mysetups} \startxmlsetups xml:something \xmlflush{#1} \stopxmlsetups \startluacode function xml.finalizers.tex.depth(t) local d = 0 local t = t and t[1] while t do d = d + 1 t = xml.parent(t) if not t then break end end context(d) end \stopluacode \startxmlsetups xml:what \xmldoifelse {#1} {..[name() == "what"]} { YES } { NOP } [\xmlflush{#1}] (\xmlfilter{#1}{./depth()}) \stopxmlsetups \starttext \xmlprocessbuffer{main}{test}{} \stoptext I might add it anyway (a faster variant that is), Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------