* xml: spurious empty spaces
@ 2016-10-19 10:07 Thomas A. Schmitz
2016-10-19 11:47 ` Hans Hagen
0 siblings, 1 reply; 3+ messages in thread
From: Thomas A. Schmitz @ 2016-10-19 10:07 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi all,
below is a slightly silly example that demonstrates a problem I’m having: I want to process (in Lua) the xml element “b” only when it has an attribute “display” set. This works, but elements without the attribute leave spurious spaces in the pdf output. The workaround I’m currently using is
if xml.attribute(e, "./", "display", "") ~= "yes" then
context.unskip()
else
…
but that seems like a kludge. Is this expected behavior, or should this be fixed?
Thanks
Thomas
\startbuffer[test]
<a>
<b display="yes">test</b>
<b>test</b>
<b>test</b>
<b>test</b>
<b display="yes">test</b>
<b display="yes">test</b>
<b>test</b>
</a>
\stopbuffer
\startxmlsetups xml:testsetups
\xmlsetsetup{\xmldocument}{a|b}{xml:*}
\stopxmlsetups
\xmlregistersetup{xml:testsetups}
\startluacode
function xml.functions.b(e)
xml.strip(e, "/", nolines, anywhere)
if xml.attribute(e, "./", "display", "") == "yes" then
context.space()
context("/")
context.space()
lxml.flush(e)
end
end
\stopluacode
\startxmlsetups xml:a
\xmlflush{#1}
\stopxmlsetups
\startxmlsetups xml:b
\xmlfunction{#1}{b}
\stopxmlsetups
\starttext
\xmlprocessbuffer{main}{test}{}
\stoptext
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: xml: spurious empty spaces
2016-10-19 10:07 xml: spurious empty spaces Thomas A. Schmitz
@ 2016-10-19 11:47 ` Hans Hagen
2016-10-19 16:02 ` Thomas A. Schmitz
0 siblings, 1 reply; 3+ messages in thread
From: Hans Hagen @ 2016-10-19 11:47 UTC (permalink / raw)
To: mailing list for ConTeXt users
On 10/19/2016 12:07 PM, Thomas A. Schmitz wrote:
> Hi all,
>
> below is a slightly silly example that demonstrates a problem I’m having: I want to process (in Lua) the xml element “b” only when it has an attribute “display” set. This works, but elements without the attribute leave spurious spaces in the pdf output. The workaround I’m currently using is
>
> if xml.attribute(e, "./", "display", "") ~= "yes" then
> context.unskip()
> else
> …
>
> but that seems like a kludge. Is this expected behavior, or should this be fixed?
\startxmlsetups xml:a
\ignorespaces
\xmlflush{#1}
\removeunwantedspaces
\stopxmlsetups
\startxmlsetups xml:b
\ignorespaces
\xmlfunction{#1}{b}
\removeunwantedspaces
\stopxmlsetups
> Thanks
>
> Thomas
>
> \startbuffer[test]
> <a>
> <b display="yes">test</b>
> <b>test</b>
> <b>test</b>
> <b>test</b>
> <b display="yes">test</b>
> <b display="yes">test</b>
> <b>test</b>
> </a>
> \stopbuffer
>
> \startxmlsetups xml:testsetups
> \xmlsetsetup{\xmldocument}{a|b}{xml:*}
> \stopxmlsetups
>
> \xmlregistersetup{xml:testsetups}
>
> \startluacode
> function xml.functions.b(e)
> xml.strip(e, "/", nolines, anywhere)
> if xml.attribute(e, "./", "display", "") == "yes" then
> context.space()
> context("/")
> context.space()
> lxml.flush(e)
> end
> end
> \stopluacode
>
> \startxmlsetups xml:a
> \xmlflush{#1}
> \stopxmlsetups
>
> \startxmlsetups xml:b
> \xmlfunction{#1}{b}
> \stopxmlsetups
>
> \starttext
> \xmlprocessbuffer{main}{test}{}
>
> \stoptext
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage : http://www.pragma-ade.nl / http://context.aanhet.net
> archive : https://bitbucket.org/phg/context-mirror/commits/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
>
--
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: xml: spurious empty spaces
2016-10-19 11:47 ` Hans Hagen
@ 2016-10-19 16:02 ` Thomas A. Schmitz
0 siblings, 0 replies; 3+ messages in thread
From: Thomas A. Schmitz @ 2016-10-19 16:02 UTC (permalink / raw)
To: mailing list for ConTeXt users
On 10/19/2016 01:47 PM, Hans Hagen wrote:
>
> \startxmlsetups xml:a
> \ignorespaces
> \xmlflush{#1}
> \removeunwantedspaces
> \stopxmlsetups
>
> \startxmlsetups xml:b
> \ignorespaces
> \xmlfunction{#1}{b}
> \removeunwantedspaces
> \stopxmlsetups
Ah OK, I had tried applying these within the lua code, but this didn't
work. Thanks a lot Hans, that's cleaner!
Thomas
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
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