Re: [realXtend] If there is any tools to parse XML files in JavaScript environment in realXtend Tundra?
Hi,
Here's another example that I wrote quite recently when testing and
debugging QtScript + QtXml. As you can see the script bindings created by
QtScriptGenerator are not perfect there probably might be even more gotchas
to encounter along the way. I might also throw this to the Tundra
repository in the near future as well. Sorry for the missing indentation
(GMail seems to strip it away).
// Loads the plugin.xml from Tundra/bin twice, first by using both plain
QFile, and the second time using QFile and QXmlInputSource.
function QtXmlTest()
{
var file = new QFile(plugins.xml);
var errorMsg;
var errorLine;
var errorColumn;
var domDocFromFile = new QDomDocument();
// The following line should work to my knowledge, but for some
(non-apparent) reason it doens't:
// var fileOk =
domDocFromFile[setContent(QIODevice,bool,QString,int,int)](file, true,
errorMsg, errorLine, errorColumn);
// I'm suspecting it has something to do with the fact that QDomDocument
doesn't inherit QObject (I have encountered some mysterious
// behavior with e.g. QTreeWidgetItem also), and the fact that the actual
C++ function implementation uses default argument values:
// bool setContent(QIODevice *dev, bool namespaceProcessing, QString *
errorMsg = 0, int * errorLine = 0, int * errorColumn = 0);
// My guess is that that passing C-type pointers (or references for that
matter) which are used for output is not simply
// supported/understood by QtScript(Generator).
// Probably QtScriptGenerator doesn't generate function signatures for
all cases (the function at hand would yield four different possible
signatures).
// Hence the function call must be done with none of the optional
arguments provided.
// So, the following works without problems (let's try bool
setContent(QIODevice * dev)):
var fileOk = domDocFromFile.setContent(file);
if (fileOk)
{
// Should work ok!
// Simply dump the whole file contents to stdout.
print(File contents:);
print(domDocFromFile.toString());
print();
}
file.close(); // Remember to close the file handle.
// So, the setContent function seems to be working by omitting the default
arguments from the signatures
// (http://developer.qt.nokia.com/doc/qt-4.7/qdomdocument.html)
alltogether, and the following signatures/overloads should work:
// bool setContent(const QByteArray data, bool namespaceProcessing)
// bool setContent(const QString text, bool namespaceProcessing)
// bool setContent(QIODevice * dev, bool namespaceProcessing)
// bool setContent(QXmlInputSource * source, bool namespaceProcessing)
// bool setContent(const QString text)
// bool setContent(const QByteArray buffer)
// bool setContent(QIODevice * dev) - which we usesd previously
// bool setContent(QXmlInputSource * source, QXmlReader * reader)
var file2 = new QFile(plugins.xml);
var source = new QXmlInputSource(file2);
var domDocFromInputSource = new QDomDocument();
// Utilize the Qt XML/DOM API and print the names of the C++ plugins
defined int the XML file individually.
// Let's try bool setContent(QXmlInputSource * source, bool
namespaceProcessing).
var sourceOk = domDocFromInputSource.setContent(source, true);
if (sourceOk)
{
// Should work ok!
var pluginElems = domDocFromInputSource.elementsByTagName(plugin);
print(pluginElems.length() + C++ plugins found. The plugins are:);
for(var i = 0; i pluginElems.length(); ++i)
print(* + pluginElems.item(i).toElement().attribute(path));
}
file2.close();
}
}
--
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http://www.realxtend.org
Re: [realXtend] If there is any tools to parse XML files in JavaScript environment in realXtend Tundra?
wow! Thank you Toni! This really amazing!
On Fri, Feb 24, 2012 at 3:03 PM, Toni Alatalo t...@playsign.net wrote:
On Fri, 2012-02-24 at 14:44 -0500, 赵柏萱 wrote:
Thank you for the detailed reply!
I made a quick / test example that should get you going:
https://github.com/realXtend/naali/blob/tundra2/bin/jsmodules/apitest/qtxml.js
Can run with:
./Tundra --headless --run jsmodules/apitest/qtxml.js
it walks the xml doc and prints tags. is made to run from the Tundra bin
directory (or the root in release) as expects the plugins.xml to be
there.
~Toni
On Fri, Feb 24, 2012 at 2:27 PM, Toni Alatalo t...@playsign.net
wrote:
On Fri, 2012-02-24 at 10:37 -0800, Zhao Boxuan wrote:
I'm going to make a demo using realXtend tundra, and there
are some
Cool!
xml files to parse. I try to use new
ActiveXObject('Microsoft.XMLDOM') to do the parse job but
it seems
that the parser is not supported in the tundra JavaSript
environment.
Heh, no that certainly is not expected to work out of the box.
I don't
know what API that actually is even. Browsers which have
active-x
support, any browser on Windows perhaps?
Could anyone tell me if there's any tools I can use to parse
the XML
files?
Tundra itself uses Qt XML, and that is I think available to
Javascript
(QtScript) too. The qt.xml extension.
I can make a test / little demo later, have never actually
used that yet
(but it does seem nice on the c++ side with the XML
DocumentObjects or
so).
I think the same ImportExtension thing that's used to load
qt.core and
qt.gui in the examples in e.g. scenes/ dir should work for
that too, and
then the Qt API docs (for c++ but the API is the same) should
tell how
it works.
It is also possible to use pure Javascript libraries, if for
example
JQuery has nice XML tools, but that Qt XML is native c++ code
so should
be fast and I think nice too.
~Toni
P.S. I think we have the ActiveX support enabled in Qt too
('ActiveQt'),
so if that's needed for something else it's possible to use
too. Not
needed for XML, but I think e.g. Flash works that way. (on
windows when
Flash active-x plugin installed)
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
[realXtend] If there is any tools to parse XML files in JavaScript environment in realXtend Tundra?
Hi, everyone,
I'm going to make a demo using realXtend tundra, and there are some
xml files to parse. I try to use new
ActiveXObject('Microsoft.XMLDOM') to do the parse job but it seems
that the parser is not supported in the tundra JavaSript environment.
Could anyone tell me if there's any tools I can use to parse the XML
files?
Thank you!
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
Re: [realXtend] If there is any tools to parse XML files in JavaScript environment in realXtend Tundra?
On Fri, 2012-02-24 at 10:37 -0800, Zhao Boxuan wrote:
I'm going to make a demo using realXtend tundra, and there are some
Cool!
xml files to parse. I try to use new
ActiveXObject('Microsoft.XMLDOM') to do the parse job but it seems
that the parser is not supported in the tundra JavaSript environment.
Heh, no that certainly is not expected to work out of the box. I don't
know what API that actually is even. Browsers which have active-x
support, any browser on Windows perhaps?
Could anyone tell me if there's any tools I can use to parse the XML
files?
Tundra itself uses Qt XML, and that is I think available to Javascript
(QtScript) too. The qt.xml extension.
I can make a test / little demo later, have never actually used that yet
(but it does seem nice on the c++ side with the XML DocumentObjects or
so).
I think the same ImportExtension thing that's used to load qt.core and
qt.gui in the examples in e.g. scenes/ dir should work for that too, and
then the Qt API docs (for c++ but the API is the same) should tell how
it works.
It is also possible to use pure Javascript libraries, if for example
JQuery has nice XML tools, but that Qt XML is native c++ code so should
be fast and I think nice too.
~Toni
P.S. I think we have the ActiveX support enabled in Qt too ('ActiveQt'),
so if that's needed for something else it's possible to use too. Not
needed for XML, but I think e.g. Flash works that way. (on windows when
Flash active-x plugin installed)
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
Re: [realXtend] If there is any tools to parse XML files in JavaScript environment in realXtend Tundra?
Thank you for the detailed reply!
On Fri, Feb 24, 2012 at 2:27 PM, Toni Alatalo t...@playsign.net wrote:
On Fri, 2012-02-24 at 10:37 -0800, Zhao Boxuan wrote:
I'm going to make a demo using realXtend tundra, and there are some
Cool!
xml files to parse. I try to use new
ActiveXObject('Microsoft.XMLDOM') to do the parse job but it seems
that the parser is not supported in the tundra JavaSript environment.
Heh, no that certainly is not expected to work out of the box. I don't
know what API that actually is even. Browsers which have active-x
support, any browser on Windows perhaps?
Could anyone tell me if there's any tools I can use to parse the XML
files?
Tundra itself uses Qt XML, and that is I think available to Javascript
(QtScript) too. The qt.xml extension.
I can make a test / little demo later, have never actually used that yet
(but it does seem nice on the c++ side with the XML DocumentObjects or
so).
I think the same ImportExtension thing that's used to load qt.core and
qt.gui in the examples in e.g. scenes/ dir should work for that too, and
then the Qt API docs (for c++ but the API is the same) should tell how
it works.
It is also possible to use pure Javascript libraries, if for example
JQuery has nice XML tools, but that Qt XML is native c++ code so should
be fast and I think nice too.
~Toni
P.S. I think we have the ActiveX support enabled in Qt too ('ActiveQt'),
so if that's needed for something else it's possible to use too. Not
needed for XML, but I think e.g. Flash works that way. (on windows when
Flash active-x plugin installed)
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
Re: [realXtend] If there is any tools to parse XML files in JavaScript environment in realXtend Tundra?
On Fri, 2012-02-24 at 14:44 -0500, 赵柏萱 wrote:
Thank you for the detailed reply!
I made a quick / test example that should get you going:
https://github.com/realXtend/naali/blob/tundra2/bin/jsmodules/apitest/qtxml.js
Can run with:
./Tundra --headless --run jsmodules/apitest/qtxml.js
it walks the xml doc and prints tags. is made to run from the Tundra bin
directory (or the root in release) as expects the plugins.xml to be
there.
~Toni
On Fri, Feb 24, 2012 at 2:27 PM, Toni Alatalo t...@playsign.net
wrote:
On Fri, 2012-02-24 at 10:37 -0800, Zhao Boxuan wrote:
I'm going to make a demo using realXtend tundra, and there
are some
Cool!
xml files to parse. I try to use new
ActiveXObject('Microsoft.XMLDOM') to do the parse job but
it seems
that the parser is not supported in the tundra JavaSript
environment.
Heh, no that certainly is not expected to work out of the box.
I don't
know what API that actually is even. Browsers which have
active-x
support, any browser on Windows perhaps?
Could anyone tell me if there's any tools I can use to parse
the XML
files?
Tundra itself uses Qt XML, and that is I think available to
Javascript
(QtScript) too. The qt.xml extension.
I can make a test / little demo later, have never actually
used that yet
(but it does seem nice on the c++ side with the XML
DocumentObjects or
so).
I think the same ImportExtension thing that's used to load
qt.core and
qt.gui in the examples in e.g. scenes/ dir should work for
that too, and
then the Qt API docs (for c++ but the API is the same) should
tell how
it works.
It is also possible to use pure Javascript libraries, if for
example
JQuery has nice XML tools, but that Qt XML is native c++ code
so should
be fast and I think nice too.
~Toni
P.S. I think we have the ActiveX support enabled in Qt too
('ActiveQt'),
so if that's needed for something else it's possible to use
too. Not
needed for XML, but I think e.g. Flash works that way. (on
windows when
Flash active-x plugin installed)
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
--
http://groups.google.com/group/realxtend
http://www.realxtend.org
