[NTG-context] Access current element in xmlsetsetup via xml.expressions
Taco Hoekwater
taco at elvenkind.com
Wed Oct 2 10:18:25 CEST 2019
> On 1 Oct 2019, at 21:24, achim at jander.de wrote:
>
> Hello,
> I’m trying to build an xmlsetsetup with an own lua function. XML in MKIV says on pg. 33:
> You can also use normal Lua functions as long as you make sure that you pass the right arguments.
> There are a few predefined variables available inside such functions.
> list table the list of matches
> l number the current index in the list of matches
> ll element the current element that matched
> order number the position of the root of the path
>
> But I can’t figure out how to get access to list, ll etc.
Neither can I :(
Taco
> My MWE (only for testing the access, is always true):
>
> \startbuffer[text]
> <para>Dies ist <inline style="sup">ein</inline> xxx<inline style="sub">zwei</inline> noch ein <inline style="sup">sup</inline> Test<inline style="sub">sub</inline></para>
> \stopbuffer
> %\enabletrackers[xml.parse,xml.path]
>
> \startluacode
> function xml.expressions.nextnodeatt(e)
> inspect(e)
> inspect(ll)
> return('sub')
> end
> \stopluacode
>
> \startxmlsetups xml:textsetups
> \xmlsetsetup{#1}{*}{+}
> \xmlsetsetup{#1}{para}{xml:*}
> \xmlsetsetup{#1}{inline[@style='sup'][xml.expressions.nextnodeatt(ll)=='sub']}{xml:sub}
> \stopxmlsetups
>
> \xmlregistersetup{xml:textsetups}
>
> \startxmlsetups xml:para
> \xmlflush{#1}\par
> \stopxmlsetups
>
> \startxmlsetups xml:sub
> \color[red]{\xmlflush{#1}}
> \stopxmlsetups
>
>
> \starttext
> \xmlprocessbuffer{main}{text}{}
> \stoptext
>
> Thanks in advance,
> Achim
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Taco Hoekwater
Elvenkind BV
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