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* Re: XML - accessing parental children attribute (was: some troubles)
@ 2015-02-17 14:25 Procházka Lukáš Ing. - Pontex s. r. o.
  2015-02-17 19:56 ` Hans Hagen
  0 siblings, 1 reply; 3+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2015-02-17 14:25 UTC (permalink / raw)
  To: ConTeXt

[-- Attachment #1: Type: text/plain, Size: 2017 bytes --]

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 --]
[-- Type: application/octet-stream, Size: 718 bytes --]

\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

[-- Attachment #3: t.pdf --]
[-- Type: application/pdf, Size: 7652 bytes --]

[-- Attachment #4: t.xml --]
[-- Type: text/xml, Size: 63 bytes --]

<a>
  <aa number="111">AA</aa>
  <ab number="222">AB</ab>
</a>

[-- Attachment #5: Type: text/plain, Size: 485 bytes --]

___________________________________________________________________________________
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
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 3+ messages in thread
* Re: XML - accessing parental children attribute (was: some troubles)
  2015-02-17 14:25 XML - accessing parental children attribute (was: some troubles) Procházka Lukáš Ing. - Pontex s. r. o.
@ 2015-02-17 19:56 ` Hans Hagen
  2015-02-18  7:31   ` Procházka Lukáš Ing. - Pontex s. r. o.
  0 siblings, 1 reply; 3+ messages in thread
From: Hans Hagen @ 2015-02-17 19:56 UTC (permalink / raw)
  To: mailing list for ConTeXt users

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="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...

\startbuffer[demo]
<a>
   <aa number="--">--</aa>
   <aa number="a1">A1</aa>
   <ax number="x1">X1</ab>
   <ab number="b1">B1</ab>
   <aa number="--">--</aa>
   <aa number="a2">A2</aa>
   <ax number="x2">X2</ab>
   <ab number="b2">B2</ab>
   <aa number="--">--</aa>
   <aa number="a3">A3</aa>
   <ax number="x3">X3</ab>
   <ab number="b3">B3</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
-----------------------------------------------------------------
___________________________________________________________________________________
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
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 3+ messages in thread
* Re: XML - accessing parental children attribute (was: some troubles)
  2015-02-17 19:56 ` Hans Hagen
@ 2015-02-18  7:31   ` Procházka Lukáš Ing. - Pontex s. r. o.
  0 siblings, 0 replies; 3+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2015-02-18  7:31 UTC (permalink / raw)
  To: mailing list for ConTeXt users

Hello,

thanks Hans, this works perfectly...

Lukas


> \startbuffer[demo]
> <a>
>    <aa number="--">--</aa>
>    <aa number="a1">A1</aa>
>    <ax number="x1">X1</ab>
>    <ab number="b1">B1</ab>
>    <aa number="--">--</aa>
>    <aa number="a2">A2</aa>
>    <ax number="x2">X2</ab>
>    <ab number="b2">B2</ab>
>    <aa number="--">--</aa>
>    <aa number="a3">A3</aa>
>    <ax number="x3">X3</ab>
>    <ab number="b3">B3</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: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

___________________________________________________________________________________
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
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 3+ messages in thread
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2015-02-17 19:56 ` Hans Hagen
2015-02-18  7:31   ` Procházka Lukáš Ing. - Pontex s. r. o.

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