Re: [NTG-context] Ctx XML
On 12/11/2014 8:33 AM, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
Hello,
On Thu, 11 Dec 2014 02:24:24 +0100, Hans Hagen pra...@wxs.nl wrote:
On 12/10/2014 11:08 PM, Lukáš Procházka wrote:
I assume that you also want the content of elements, not just the
attributes.
Yes...
Or how to achieve this in a best way under Ctx: XML file - Lua
table/tree?
It all depends on what kin dof table you want (if the content is an
indexed table and attributes keys then you have the problem that the
element cannot be a key too as it can clash) .. anyway, it's no big deal
to provide a stupid table, so I can provide something because after all
the loaded xml file is a table already.
It would be great.
local x = xml.load(file.xml)
local t = xml.totable(x)
where x is an index/hash mix plus _tag, _type and _namespace fields as
well (after all I assume that you need to know that too).
(btw, I bet that you can do what you want with the existing
functionality as well, so there is not much benefit in such a table)
Probably in the next upload,
Means - some functionality (for me to test or to play with) might
be available tomorrow morning?
Hans
BTW, I prepared a really-simple-XML-test which shows XML - Lua
table/tree conversion, which I'd like to achieve (and which (approx.)
provides LuaXml lib).
XML
a aaa=AAA
b bbb=B1/
b bbb=B2
c
/b
/a
Lua representation
{ [0] = a, -- Element name
{ [0] = b, -- Element name
-- No nested members
bbb = B1, -- Atts
},
{ [0] = b, -- Element name
{ c, }, -- Nested member
bbb = B2, -- Atts
},
aaa = AAA, -- Atts
}
that already makes assumptions that it's just data ... the context xml
parser is a roundtrip one so a bit more control is provided:
local str = [[
?xml version=1.0 ?
a one=1
!-- rubish --
b two=1/
b two=2
c gt; d
/b
/a
]]
I've added some flags:
inspect(xml.totable(xml.convert(str)))
table={
{
xml version=\1.0\ ,
[_type]=instruction,
},
\
,
{
\
,
{
rubish ,
[_type]=comment,
},
\
,
{
[_tag]=b,
[_type]=_element,
[two]=1,
},
\
,
{
\
c d\
,
[_tag]=b,
[_type]=_element,
[two]=2,
},
\
,
[_tag]=a,
[_type]=_element,
[one]=1,
},
[_type]=root,
}
inspect(xml.totable(xml.convert(str),true))
table={
{
xml version=\1.0\,
[_type]=instruction,
},
{
{
rubish,
[_type]=comment,
},
{
[_tag]=b,
[_type]=_element,
[two]=1,
},
{
c d,
[_tag]=b,
[_type]=_element,
[two]=2,
},
[_tag]=a,
[_type]=_element,
[one]=1,
},
[_type]=root,
}
inspect(xml.totable(xml.convert(str),true,true))
table={
{
[0]=a,
{
[0]=b,
[two]=1,
},
{
[0]=b,
c d,
[two]=2,
},
[one]=1,
},
}
The last one is yours. Of course in all cases you loose info that is
present in the original representation (where you can also access the
nodes via expressions). Don't expect additional helpers for this
'totable' variant.
Hans
-
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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Re: [NTG-context] Ctx XML
On 12/11/2014 12:25 PM, Procházka Lukáš Ing. - Pontex s. r. o. wrote: BTW: In your example, you are using the following enum of _type: instruction, comment, _element, -- REALLY UNDERSCORE here? root, of course, as you can have an attribute with name 'element' Hans -- - 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 ___
[NTG-context] Ctx XML
Hello, I'm having problem using LuaXml library with Ctx, both using Lua ver. 5.2. LuaXml works fine with Lua standalone programs/scripts; but something weird occurs when used from within Ctx (e.g. a .xml file can be read successfully from standalone Lua with LuaXml lib; but the same code doesn't give the desired result when used in combination with Ctx; a problem might be version mismatch - I'm still using both Lua 5.1 and 5.2 including 3rd party modules in my scripts - but my latest tests with Ctx LuaXml should have avoid this; or namespace mismatch...?). Anyway, does native Ctx XML API (has it its own namespace, like 'context.xml'?) provide a function to load a .xml file and to return its XML tree as a table, with nodes (as a table with node attributes as table members) in a proper sequence... something like LuaXml's 'xml.load(file.xml)' does? Or how to achieve this in a best way under Ctx: XML file - Lua table/tree? 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 ___ 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 ___
Re: [NTG-context] Ctx XML
On 12/10/2014 11:08 PM, Lukáš Procházka wrote: Hello, I'm having problem using LuaXml library with Ctx, both using Lua ver. 5.2. LuaXml works fine with Lua standalone programs/scripts; but something weird occurs when used from within Ctx (e.g. a .xml file can be read successfully from standalone Lua with LuaXml lib; but the same code doesn't give the desired result when used in combination with Ctx; a problem might be version mismatch - I'm still using both Lua 5.1 and 5.2 including 3rd party modules in my scripts - but my latest tests with Ctx LuaXml should have avoid this; or namespace mismatch...?). I don't know (and as we have quite some code on-board I don't care too much either about clashes in namespaces). Anyway, does native Ctx XML API (has it its own namespace, like 'context.xml'?) provide a function to load a .xml file and to return its XML tree as a table, with nodes (as a table with node attributes as table members) in a proper sequence... something like LuaXml's 'xml.load(file.xml)' does? I assume that you also want the content of elements, not just the attributes. Or how to achieve this in a best way under Ctx: XML file - Lua table/tree? It all depends on what kin dof table you want (if the content is an indexed table and attributes keys then you have the problem that the element cannot be a key too as it can clash) .. anyway, it's no big deal to provide a stupid table, so I can provide something because after all the loaded xml file is a table already. local x = xml.load(file.xml) local t = xml.totable(x) where x is an index/hash mix plus _tag, _type and _namespace fields as well (after all I assume that you need to know that too). (btw, I bet that you can do what you want with the existing functionality as well, so there is not much benefit in such a table) Probably in the next upload, Hans - 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 ___
Re: [NTG-context] Ctx XML
Hello,
On Thu, 11 Dec 2014 02:24:24 +0100, Hans Hagen pra...@wxs.nl wrote:
On 12/10/2014 11:08 PM, Lukáš Procházka wrote:
I assume that you also want the content of elements, not just the
attributes.
Yes...
Or how to achieve this in a best way under Ctx: XML file - Lua table/tree?
It all depends on what kin dof table you want (if the content is an
indexed table and attributes keys then you have the problem that the
element cannot be a key too as it can clash) .. anyway, it's no big deal
to provide a stupid table, so I can provide something because after all
the loaded xml file is a table already.
It would be great.
local x = xml.load(file.xml)
local t = xml.totable(x)
where x is an index/hash mix plus _tag, _type and _namespace fields as
well (after all I assume that you need to know that too).
(btw, I bet that you can do what you want with the existing
functionality as well, so there is not much benefit in such a table)
Probably in the next upload,
... Means - some functionality (for me to test or to play with) might be
available tomorrow morning?
Hans
BTW, I prepared a really-simple-XML-test which shows XML - Lua table/tree
conversion, which I'd like to achieve (and which (approx.) provides LuaXml lib).
XML
a aaa=AAA
b bbb=B1/
b bbb=B2
c
/b
/a
Lua representation
{ [0] = a, -- Element name
{ [0] = b, -- Element name
-- No nested members
bbb = B1, -- Atts
},
{ [0] = b, -- Element name
{ c, }, -- Nested member
bbb = B2, -- Atts
},
aaa = AAA, -- Atts
}
Thanks again.
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 038a aaa=AAA
b bbb=B1/
b bbb=B2
c
/b
/a
!--
{ [0] = a, -- Element name
{ [0] = b, -- Element name
-- No nested members
bbb = B1, -- Atts
},
{ [0] = b, -- Element name
{ c, }, -- Nested member
bbb = B2, -- Atts
},
aaa = AAA, -- Atts
}
--
___
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
___
