From: "Procházka Lukáš Ing. - Pontex s. r. o." <LPr@pontex.cz>
To: ConTeXt <ntg-context@ntg.nl>
Subject: Re: XML - accessing parental children attribute (was: some troubles)
Date: Tue, 17 Feb 2015 15:25:20 +0100 [thread overview]
Message-ID: <op.xt7g0iv6tpjj8f@lpr> (raw)
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Hello,
a slightly modified example:
---- t.xml
<a>
<aa number="111">AA</aa>
<ab number="222">AB</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:LPr@pontex.cz
Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz
Bezová 1658
147 14 Praha 4
Tel: +420 241 096 751
Fax: +420 244 461 038
[-- Attachment #2: t.mkiv --]
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\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
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[-- Attachment #4: t.xml --]
[-- Type: text/xml, Size: 63 bytes --]
<a>
<aa number="111">AA</aa>
<ab number="222">AB</ab>
</a>
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next reply other threads:[~2015-02-17 14:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-17 14:25 Procházka Lukáš Ing. - Pontex s. r. o. [this message]
2015-02-17 19:56 ` Hans Hagen
2015-02-18 7:31 ` Procházka Lukáš Ing. - Pontex s. r. o.
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