Re: [NTG-context] XML - accessing parental children attribute (was: some troubles)
Hello,
thanks Hans, this works perfectly...
Lukas
\startbuffer[demo]
a
aa number=/aa
aa number=a1A1/aa
ax number=x1X1/ab
ab number=b1B1/ab
aa number=/aa
aa number=a2A2/aa
ax number=x2X2/ab
ab number=b2B2/ab
aa number=/aa
aa number=a3A3/aa
ax number=x3X3/ab
ab number=b3B3/ab
/a
\stopbuffer
\startxmlsetups xml:initialize
\xmlsetsetup{#1}{*}{xml:*}
\stopxmlsetups
\startxmlsetups xml:a
\xmlflush{#1}
\stopxmlsetups
\startxmlsetups xml:aa
\par
aa\xmlflush{#1}/aa
\par
\stopxmlsetups
\startxmlsetups xml:ax
\par
ax\xmlflush{#1}/ax
\par
\stopxmlsetups
\startxmlsetups xml:ab
\par
ab
\xmlflush{#1}:\space
aa: \xmlfilter{#1}{reverse-sibling::[tag() ==
'aa']/attribute('number')}\space
ax: \xmlfilter{#1}{reverse-sibling::[tag() ==
'ax']/attribute('number')}\space
/ab
\par
\stopxmlsetups
\xmlregistersetup{xml:initialize}
\starttext
\xmlprocessbuffer{main}{demo}{}
\stoptext
--
Ing. Lukáš Procházka | mailto:l...@pontex.cz
Pontex s. r. o. | mailto:pon...@pontex.cz | http://www.pontex.cz
Bezová 1658
147 14 Praha 4
Tel: +420 241 096 751
Fax: +420 244 461 038
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archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
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Re: [NTG-context] XML - accessing parental children attribute (was: some troubles)
Hello,
a slightly modified example:
t.xml
a
aa number=111AA/aa
ab number=222AB/ab
/a
and the Ctx source:
t.mkiv
\startxmlsetups xml:T
\xmlfunction{#1}{test}
\xmlsetsetup{\xmldocument}{*}{+}
% \xmlsetsetup{\xmldocument}{*}{-} % Empties output?!
\xmlsetsetup{\xmldocument}{a/aa}{xml:*}
\xmlsetsetup{\xmldocument}{a/ab}{xml:*}
\stopxmlsetups
\startluacode
local aux = aux; if not aux then aux = {}; _G.aux = aux end
xml.functions.aa = function(t)
aux.num = t.at.number
end
\stopluacode
\startxmlsetups xml:aa
\xmlfunction{#1}{aa}
\stopxmlsetups
\startxmlsetups xml:ab
\xmlfunction{#1}{ab}
\ctxlua{context.section(New section .. (aux.num or ??))}
\xmlflush{#1}
\stopxmlsetups
\xmlregistersetup{xml:T}
\starttext
Hello
\xmlprocessfile{id}{t.xml}{}
\stoptext
Two (remaining) questions:
1)
Why the line \xmlsetsetup{\xmldocument}{*}{-} (try to uncomment!) causes the whole
output is empty, even if I specify another operation for a/ab elements later?
My intention is to have {*}{-} (don't flush anything by default), excluding elements
specified later, e.g. a/ab (with another operation specified);
how to achieve this?
2)
How to get aa.number from within ab element?
I believed \xmlatt{#1/../aa}{number} within a/ab will do that, but...? How
to do that?
I have a partial solution: when processing a/aa, I save an attribute value to
a Lua variable, which I use later;
but this solution doesn't look very clean for me;
I'd rather find a way to access parental (first) child attributes form within a
node...
Thank you in advance;
I'm not very familiar with Ctx XML processing (so far)...
Best regards,
Lukas
--
Ing. Lukáš Procházka | mailto:l...@pontex.cz
Pontex s. r. o. | mailto:pon...@pontex.cz | http://www.pontex.cz
Bezová 1658
147 14 Praha 4
Tel: +420 241 096 751
Fax: +420 244 461 038
t.mkiv
Description: Binary data
t.pdf
Description: Adobe PDF document
a
aa number=111AA/aa
ab number=222AB/ab
/a
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___
Re: [NTG-context] XML - accessing parental children attribute (was: some troubles)
On 2/17/2015 3:25 PM, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
Hello,
a slightly modified example:
t.xml
a
aa number=111AA/aa
ab number=222AB/ab
/a
and the Ctx source:
t.mkiv
\startxmlsetups xml:T
\xmlfunction{#1}{test}
\xmlsetsetup{\xmldocument}{*}{+}
% \xmlsetsetup{\xmldocument}{*}{-} % Empties output?!
\xmlsetsetup{\xmldocument}{a/aa}{xml:*}
\xmlsetsetup{\xmldocument}{a/ab}{xml:*}
\stopxmlsetups
\startluacode
local aux = aux; if not aux then aux = {}; _G.aux = aux end
xml.functions.aa = function(t)
aux.num = t.at.number
end
\stopluacode
\startxmlsetups xml:aa
\xmlfunction{#1}{aa}
\stopxmlsetups
\startxmlsetups xml:ab
\xmlfunction{#1}{ab}
\ctxlua{context.section(New section .. (aux.num or ??))}
\xmlflush{#1}
\stopxmlsetups
\xmlregistersetup{xml:T}
\starttext
Hello
\xmlprocessfile{id}{t.xml}{}
\stoptext
Two (remaining) questions:
1)
Why the line \xmlsetsetup{\xmldocument}{*}{-} (try to uncomment!)
causes the whole output is empty, even if I specify another operation
for a/ab elements later?
My intention is to have {*}{-} (don't flush anything by default),
excluding elements specified later, e.g. a/ab (with another operation
specified);
how to achieve this?
2)
How to get aa.number from within ab element?
I believed \xmlatt{#1/../aa}{number} within a/ab will do that,
but? How to do that?
I have a partial solution: when processing a/aa, I save an attribute
value to a Lua variable, which I use later;
but this solution doesn't look very clean for me;
I'd rather find a way to access parental (first) child attributes form
within a node...
\startbuffer[demo]
a
aa number=/aa
aa number=a1A1/aa
ax number=x1X1/ab
ab number=b1B1/ab
aa number=/aa
aa number=a2A2/aa
ax number=x2X2/ab
ab number=b2B2/ab
aa number=/aa
aa number=a3A3/aa
ax number=x3X3/ab
ab number=b3B3/ab
/a
\stopbuffer
\startxmlsetups xml:initialize
\xmlsetsetup{#1}{*}{xml:*}
\stopxmlsetups
\startxmlsetups xml:a
\xmlflush{#1}
\stopxmlsetups
\startxmlsetups xml:aa
\par
aa\xmlflush{#1}/aa
\par
\stopxmlsetups
\startxmlsetups xml:ax
\par
ax\xmlflush{#1}/ax
\par
\stopxmlsetups
\startxmlsetups xml:ab
\par
ab
\xmlflush{#1}:\space
aa: \xmlfilter{#1}{reverse-sibling::[tag() ==
'aa']/attribute('number')}\space
ax: \xmlfilter{#1}{reverse-sibling::[tag() ==
'ax']/attribute('number')}\space
/ab
\par
\stopxmlsetups
\xmlregistersetup{xml:initialize}
\starttext
\xmlprocessbuffer{main}{demo}{}
\stoptext
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
-
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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://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___
