[NTG-context] xmlsetentity on the fly?

[NTG-context] xmlsetentity on the fly?

[Hans van der Meer via ntg-context]

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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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Re: [NTG-context] xmlsetentity on the fly?

[Thomas A. Schmitz via ntg-context]

Use \xmltexentity

Thomas

> On 17. Apr 2023, at 12:32, Hans van der Meer via ntg-context <ntg-context@ntg.nl> wrote:
> 
> I would like to change an entity 'on the fly'. Example


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Re: [NTG-context] xmlsetentity on the fly?

[Hans van der Meer via ntg-context]

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> Use \xmltexentity

Already tried this. But doesn't work. I guess it has more to do with the definition of the entity in the stsrem.

met vriendelijke groet,
dr. Hans van der Meer
Burgemeester Rijnderslaan 244
1185 MC Amstelveen
tel. 020 6452701 / 06 53743629

> On 17 Apr 2023, at 13:00, Thomas A. Schmitz via ntg-context <ntg-context@ntg.nl> wrote:
> 
> Use \xmltexentity
> 
> Thomas
> 
>> On 17. Apr 2023, at 12:32, Hans van der Meer via ntg-context <ntg-context@ntg.nl> wrote:
>> 
>> I would like to change an entity 'on the fly'. Example
> 
> 
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : https://contextgarden.net
> ___________________________________________________________________________________


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Re: [NTG-context] xmlsetentity on the fly?

[Hans van der Meer via ntg-context]

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I tried 
\directlua{lxml.registerentity("DATE","NEWDATE")}
and
\directlua{lxml.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 <havdmeer@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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___________________________________________________________________________________

Re: [NTG-context] xmlsetentity on the fly?

[Hans van der Meer via ntg-context]

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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 <havdmeer@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
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : https://contextgarden.net
> ___________________________________________________________________________________


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maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________