After some experiments I am now fairly convinced that the entities are
substituted BEFORE the typesettting actually starts. And thus changing the
entity on the fly will have no effect. Is there a flag that can be set in order
to delay the substitution until the actual moment of typesetting that part of
the input? I examined files lxml-ent.lua and lxml-tex.lua but could not find
how to this.
dr. Hans van der Meer
> On 17 Apr 2023, at 18:11, Hans van der Meer via ntg-context
> <ntg-context@ntg.nl> wrote:
>
> I tried
> \directlua{xml.registerentity("DATE","NEWDATE")}
>
> but neither does effect a change in the entity.
>
> Why is that entry not set in the Lua-table entities? (file xml-ent.lua) has
> as that function:
>
> function xml.registerentity(key,value)
> entities[key] = value
> if trace_entities then
> report_xml("registering entity %a as %a",key,value)
> end
> end
>
>
>> On 17 Apr 2023, at 12:32, Hans van der Meer <havdm...@ziggo.nl> wrote:
>>
>> I would like to change an entity 'on the fly'. Example
>>
>> \def\DATE{THEDATE}\expanded{\xmlsetentity{DATE}{\DATE}}
>>
>> \startxmlsetups typ:event
>>
>> \def\DATE{NEWDATE}\expanded{\xmlsetentity{DATE}{\DATE}}
>>
>> Using &DATE; within the <event>.
>>
>> \stopxmlsetups
>>
>> However, using &DATE; inside an <event> always results in THEDATE and never
>> in NEWDATE.
>>
>> How can I change the value of the entity inside the xmlsetups?
>>
>
> dr. Hans van der Meer
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