xsltforms-support — XSLTForms support list

Re: [Xsltforms-support] submission replace, targetref issues

[Dhruv A. <dhr...@gm...>]

Works! My bad, I should've tested with the latest before...

Thanks though, it is a great piece of work.


On 9 December 2011 21:15, Alain Couthures <ala...@ag...>wrote:

>  Hi Dhruv,
>
> Your form works correctly with the latest SF SVN build (I remember I fixed
> something about targetref and replace="text" recently!).
>
> Is it possible for you to test with it?
>
> Thank you for your feedbacks!
>
> -Alain
>
> Le 09/12/2011 10:39, Dhruv Ahuja a écrit :
>
> Hi All
>
> Please have a look at my XForm at http://pastebin.com/X8JhESZi . The
> replace and targetref specified on line 11 do work when this form is hosted
> via betterFORM but not when implemented via XSLTForms in a browser.
>
> In the case of XSLTForms, I did see an error message in the error console
> of Firefox saying that my return value from the resource was a syntactical
> error on line 1 of the current document. Appears to me that it wasn't able
> to reach the intended element and then of course, presenting only the
> return value as a valid XML document to the browser didn't quite work. My
> value isn't XML indeed.
>
> I'd be happy if anybody can look into this, or suggest me a quick
> workaround.
>
> Thanks in advance!
>
> Dhruv
>
>
>
> ------------------------------------------------------------------------------
> Cloud Services Checklist: Pricing and Packaging Optimization
> This white paper is intended to serve as a reference, checklist and point of
> discussion for anyone considering optimizing the pricing and packaging model
> of a cloud services business. Read Now!http://www.accelacomm.com/jaw/sfnl/114/51491232/
>
>
>
> _______________________________________________
> Xsltforms-support mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/xsltforms-support
>
>
>
>

[Xsltforms-support] Version 1.1.0 of exsltforms

[Claudius T. <cla...@ya...>]

Hi,

Version 1.1.0 of exsltforms is ready and can be downloaded from [1].

Changelog:
Version 1.0.9 - 2011.12.08
1. This version of exsltforms works with the revision 521 of XSLTForms, as of 2011-12-08.
2. The rendering of data by using the data instances viewer is now much better.


[1] http://sourceforge.net/projects/extxsltforms/files/eXSLTForms%20v.1/
 
Claudius Teodorescu
http://extxsltforms.sourceforge.net/sitKubera/index/index.xml

[Xsltforms-support] please ignore my last email

[Stephen C. <ste...@gm...>]

I need to get schema validation working in Eclipse, too many silly
errors are not being found!

[Xsltforms-support] Support for <resource> child of <submission>?

[Stephen C. <ste...@gm...>]

Hi Alain,

Am I correct in thinking that this is not supported?

I get an error on form loading when I try to use it.

I want to make use of RESTful URLs and this seems to be the only way that I can.

That is the URL has the format http://<domain>/<resource-type>/<resource-name>

I present the user with a select list of schemas to load and want to
substitue the <resource-name> part of the URL with what they have
selected.

e.g.

<xf:submission ....>
 <xf:resource value="concat('../schema/',instance('schema')/selected_schema)"/>
</xf:submission>

I think that the error message I am seeing is that the resource
attribute on the submission is missing, which of course is OK if there
is a resource child element.

This capability would seem to me to be also needed to make use of
Atompub feeds to load an feed item link into a model instance.

Regards

Steve Cameron

Re: [Xsltforms-support] Authentication problems with Safari

[Alain C. <ala...@ag...>]

Hello,

Thank you for pointing at this compatibility problem.

Could you please use a browser debugger to check headers?

A simple Google search already gives interesting directions:

"Update: Travis Estill and David Kleinschmidt reminded me that 401 
responses shouldn't be returned without an Auth header and so a 403 is a 
better response code. This also helps to make Safari behave too." 
(http://www.peej.co.uk/articles/http-auth-with-html-forms.html)

"The solution was that I needed to add 
request.setRequestHeader("Content-Type", 
"application/x-www-form-urlencoded");" 
(http://stackoverflow.com/questions/2188957/user-authentication-with-xmlhttprequest-works-in-ie-not-in-chrome)

-Alain

Le 06/12/2011 01:10, Conal Tuohy a écrit :
> I've come across a compatibility problem using XSLTForms with Safari 5
> on Mac and Windows. If Safari receives an HTTP authentication challenge
> when it submits an XML instance to a server, it fails to present the
> user with an authentication dialog, and the submission simply fails with
> a 401.
>
> It seems to me that this is a bug in Safari's XmlHttpRequest object - it
> should trigger the browser's normal response to an authentication
> challenge (as other browsers do). I guess that a Javascript client of
> the XmlHttpRequest object is expected to explicitly set authentication
> credentials rather than leave it to the browser.
>
> NB if you open the XML instance directly in the browser (i.e. not using
> an XForm) then Safari prompts the user for a password, and authenticates
> with the server. Once the browser has established an authenticated
> session with the server, then the XForm works fine. So a work-around for
> the problem is to ensure that not only the editable XML instances, but
> also the XForms themselves require authentication.
>
> While I'm on the subject, does anyone have any example of capturing user
> credentials actually in an XForm (i.e. with a "credentials" instance?),
> and then using those for basic HTTP authentication? I suppose one have
> to use the digest() function to encode the credentials, and the
> submission header element to submit it?

Re: [Xsltforms-support] Visualise an instance in a div

[William D. V. <wi...@bi...>]

Here is a method for showing the instance in a DIV:

1. Put the div element somewhere in the page and style it to ease 
reading:

<div id="xml_dump" style="  font-family: fixed;white-space: pre;"/>

2. Add the following script to do the job:

	<script type="text/javascript">

		function insertLiteral(literalString, targetElement)
		{
			var textNode = document.createTextNode(literalString);
			targetElement.appendChild(textNode)
			return textNode;
		}


		function showInstance(){

                    var model = 
window.document.getElementById("xmodel");  // xmodel is the id of the 
xf:model
		   var instance = model.getInstanceDocument('xins');  // xins is the 
if of the xf:instance inside your model

		   var xml_dump = window.document.getElementById("xml_dump");
		   var xml = Core.saveXML(instance);

		   var xmlTextNode = insertLiteral(xml, xml_dump);
		 }

		</script>


3. Add a trigger to call the javascript:

		<xf:trigger>
			<xf:label>Show Instance</xf:label>
				<xf:action ev:event="DOMActivate">
					<xf:load resource="javascript:showInstance()" />
				</xf:action>
		</xf:trigger>



> ------------------------------
>
> Message: 2
> Date: Wed, 7 Dec 2011 01:02:52 -0800
> From: Stephen Cameron <ste...@gm...>
> Subject: [Xsltforms-support] Visualise an instance in a div
> To: xsl...@li...
> Message-ID:
> 	<CAG=ut6...@ma...>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hello,
>
> I am interested in visualising an model instance in a scrolling <div> 
> on
> the browser.
>
> I know exsltforms does this but is there any other  way in recent 
> versions
> of XSLTForms?
>
> Also is it possible to redirect the debug event information to a 
> second
> window?
>
> Thanks
>
> Steve Cameron
> -------------- next part --------------
> An HTML attachment was scrubbed...
>
> ------------------------------

[Xsltforms-support] subforms and PI mechanism of profiler (was Re: getting your feet wet with the profiler (was Re: optimization question))

[C. M. Sperberg-M. <cm...@bl...>]

On Dec 9, 2011, at 2:09 PM, Alain Couthures wrote:
> ...
> 
> In the latest builds, the Profiler is even a form: this means that it can be customized by authors themselves. The profiling data is collected as an XML document and a specific processing-instruction tells XSLTForms which form to associate with.

I shall have to study this.

> I plan to add more information in the Profiler instance (instances copies, the calling form source, ...): the Profiler will progressively become a real XForms Debugger written in XForms.
> 
> About your form performance, I already suspected that counting preceding siblings would cost a lot of time: Javascript doesn't like loops (XSLTForms has to have its own XPath machine written in Javascript... I proposed a paper for XML Prague 2012 about how to write an XQuery compiler into Javascript instructions). I recently added support for the id() function and it's even much better for performance.

Does id() require that the instance be an external instance, so it can have a DTD?
Or how does the id() function identify ID attributes?

> Defining a subform is now another possibility to simplify a form. This is not yet documented but I already love it much. Don't hesitate to ask me about subforms if you're interested in.
> 
> If you want to load another form in a new browser tab from an instance without server exchanges, defining an extra parameter for the load action should be simple with the processing-instruction capability I already use for the Profiler (this processing-instruction mechanism is very promising indeed, I'm currently building a small XRAP (XForms-REST-Apache-PHP) application with minimal generic PHP scripts, XML files and folders on server).
> 
> XML allows us to consider programs as data. We might not be numerous to envision this (but the community is strong) and I have to confess that I'm still marveled by this.

Subforms or a new browser tab may be exactly what I'm now looking for.

The profiler made me realize that my case switch to allow the user to edit the
PL/0 assembler code was exacting a high cost in number of additional nodes,
which in turn was making refreshes more expensive.  So I'd like to move
the editing function to a different form, and make the 'Edit code' button (on 
the simulator page) link to / load / transfer to the code editor.  The code
editor should similarly have a 'Run code' button to go (back) to the simulator.

Since I don't want to allow arbitrary Web users to store arbitrary data on my 
server, I don't want to save the 'code' instance on the server and then load
that XML document in the other form -- I'd like to hand the user's XML instance
back and forth from one form to another.  Initially, I thought I could manage
this with a simple shell script:  the 'Edit code' button submits the 'code' instance
to that shell script, and the shell script sends back a concatenation of four things:

  1 an HTTP header with "Content-Type: application/xhtml+xml" and a blank line
  2 the first few lines of an XHTML document, from <?xml-stylesheet ... 
    to <xf:instance id="code">
  3 the code document submitted by the user (without the XML declaration)
  4 the remainder of the XHTML document, from </xf:instance> to </html>

As far as I can tell, the script is working as I expected, but the browser is not
loading the new form in the way I had expected; instead I get a series of error
messages of the form "Unsupported mediatype '... [ entire body of the
inline document instance] ...' for instance #code", one for each inline instance,
and then one for #xf-instance-config.  

I have probably failed to understand the true meaning of the submission process.
(Or rather:  I have certainly never bothered to read up on all the details.  XForms
has worked intuitively enough for me that I haven't had to, yet.)

So perhaps subforms and/or the additional load parameter are just what I'm
looking for.  (In this case, my immediate goal is to avoid incurring the cost of
building all the editing widgets for the code instance until the user actually asks
to edit it.  If that can be done without server hits, that would be idea.  But if there 
is a way to realize my original idea of passing a user instance from one
form to another by bouncing it off the server (like a soccer player passing the
ball to a teammate before running past a defender, and then getting the ball 
right back from the teammate), it would be nice to know how to do that, too.


Thank you very much for your work on XSLTForms!

Michael

-- 
****************************************************************
* C. M. Sperberg-McQueen, Black Mesa Technologies LLC
* http://www.blackmesatech.com 
* http://cmsmcq.com/mib                 
* http://balisage.net
****************************************************************

Re: [Xsltforms-support] submission replace, targetref issues

[Alain C. <ala...@ag...>]

Hi Dhruv,

Your form works correctly with the latest SF SVN build (I remember I 
fixed something about targetref and replace="text" recently!).

Is it possible for you to test with it?

Thank you for your feedbacks!

-Alain

Le 09/12/2011 10:39, Dhruv Ahuja a écrit :
> Hi All
>
> Please have a look at my XForm at http://pastebin.com/X8JhESZi . The 
> replace and targetref specified on line 11 do work when this form is 
> hosted via betterFORM but not when implemented via XSLTForms in a browser.
>
> In the case of XSLTForms, I did see an error message in the error 
> console of Firefox saying that my return value from the resource was a 
> syntactical error on line 1 of the current document. Appears to me 
> that it wasn't able to reach the intended element and then of course, 
> presenting only the return value as a valid XML document to the 
> browser didn't quite work. My value isn't XML indeed.
>
> I'd be happy if anybody can look into this, or suggest me a quick 
> workaround.
>
> Thanks in advance!
>
> Dhruv
>
>
>
> ------------------------------------------------------------------------------
> Cloud Services Checklist: Pricing and Packaging Optimization
> This white paper is intended to serve as a reference, checklist and point of
> discussion for anyone considering optimizing the pricing and packaging model
> of a cloud services business. Read Now!
> http://www.accelacomm.com/jaw/sfnl/114/51491232/
>
>
> _______________________________________________
> Xsltforms-support mailing list
> Xsl...@li...
> https://lists.sourceforge.net/lists/listinfo/xsltforms-support

Re: [Xsltforms-support] getting your feet wet with the profiler (was Re: optimization question)

[Alain C. <ala...@ag...>]

Wow! What an impressive Christmas gift for XML fans!

You're absolutely right about the Profiler I added to XSLTForms: it's a 
wonderful tool to locate time-costing XPath expressions and refreshes.

In the latest builds, the Profiler is even a form: this means that it 
can be customized by authors themselves. The profiling data is collected 
as an XML document and a specific processing-instruction tells XSLTForms 
which form to associate with.

I plan to add more information in the Profiler instance (instances 
copies, the calling form source, ...): the Profiler will progressively 
become a real XForms Debugger written in XForms.

About your form performance, I already suspected that counting preceding 
siblings would cost a lot of time: Javascript doesn't like loops 
(XSLTForms has to have its own XPath machine written in Javascript... I 
proposed a paper for XML Prague 2012 about how to write an XQuery 
compiler into Javascript instructions). I recently added support for the 
id() function and it's even much better for performance.

Defining a subform is now another possibility to simplify a form. This 
is not yet documented but I already love it much. Don't hesitate to ask 
me about subforms if you're interested in.

If you want to load another form in a new browser tab from an instance 
without server exchanges, defining an extra parameter for the load 
action should be simple with the processing-instruction capability I 
already use for the Profiler (this processing-instruction mechanism is 
very promising indeed, I'm currently building a small XRAP 
(XForms-REST-Apache-PHP) application with minimal generic PHP scripts, 
XML files and folders on server).

XML allows us to consider programs as data. We might not be numerous to 
envision this (but the community is strong) and I have to confess that 
I'm still marveled by this.

Thank you very much for your feedbacks!

-Alain

Le 09/12/2011 02:41, C. M. Sperberg-McQueen a écrit :
> Just a short report, for the record, of my experience with the profiler
> now built into XSLTForms.
>
> Short version:  the profiler is very helpful; in this case three relatively
> simple changes produced a five-fold speedup in the form.
>
> Long version:
>
> Looking at the profile information for the form I was worrying about,
> which had gotten too slow when the document it was operating on got
> bigger, I found that the most expensive XPath expressions were those
> used for numbering the cells of the stack and for numbering the
> instructions in the code area.  I hard-coded appropriate numbers into
> attributes in the machine description, and I added a set of actions for
> adding a numbering attribute to the instructions in a program, after
> loading it. I then replaced each XPath expression of the form
> count(preceding-sibling::cell) +1 or count(preceding-sibling::i) with
> a reference to @n.  I also removed the support for editing the program
> code; I'll move it to a separate form which communicates with the
> main form by bouncing the XML representation of the document off
> of a routine on the server.
>
> The first two changes (prenumbering the stack cells and autonumbering
> the instructions in the program) reduced the XForms Cumulative Refresh
> Time after loading a program and stepping through 50 cycles of machine
> time (i.e. clicking Step 50 times) from 94.6 seconds to 42.3 seconds,
> making the program about twice as fast.
>
> The third change (removing the editing functionality to a separate form)
> took it down to 17.7 seconds, another twofold speedup, for a five-fold
> speedup overall.
>
> Those who are curious can compare the timings and the subjective
> experience of the form by looking at the old and new versions of the
> form at
>
> http://blackmesatech.com/2011/12/pl0/v01.xhtml (old)
> http://blackmesatech.com/2011/12/pl0/index.xhtml (new)
>
> (Hmm.  I notice that the XSLTforms I'm using on that server is
> an old version that doesn't yet have the profiler.  I'll have to update soon.)
>

Re: [Xsltforms-support] getting your feet wet with the profiler (was Re: optimization question)

[Jakob F. <jak...@gm...>]

Thanks, Michael, for jumping in the cold water of profiling (at least
that what it looks like from my perspective), this encourages me to
follow suit.

Best,
Jakob.


On Thu, Dec 8, 2011 at 18:59, C. M. Sperberg-McQueen
<cm...@bl...> wrote:
> In case there are others who have occasional performance problems
> and aren't sure how to deal with them ...
>
> (This may be old hat to most readers of this list.  But I was taught at
> an impressionable age that the first rule of optimization is "don't do it"
> and the second rule is "don't do it yet" -- I see that Wikipedia attributes
> this to Michael A. Jackson -- so I have never bothered to worry much
> about speed in my XForms work, since I have never had any
> particular problems with it.  If you already know how to use the
> xsltforms profiler, you can stop reading now.  If you don't know, and
> worry that it might be difficult to set up, keep going.)
>
> On Dec 7, 2011, at 7:42 PM, C. M. Sperberg-McQueen wrote:
>> ...
>>
>> Are there good ways to see where the time is going?  Are there
>> obvious ways to make it faster?
>>
>> Thanks for any tips, suggestions, or thought-provoking questions.
>
>
> For the record:  shortly after sending this, I remembered that Alain
> had recently responded to Jakob Fix saying
>
>> It could be interesting to test with recent SVN build (but before rev.
>> 512 if you need exsltforms), considering that the included profiler
>> tells you in details the different times that can be measured.
>
> Ah, I said.  But how do I turn profiling on? Is this going to be a lot
> of work for me?
>
> For the benefit of others hesitant in the same way, let me say here:
> it's easier than you fear, and it was probably a lot of work for Alain,
> but it's not a lot of work for you.  This is what I did:
>
> (1) point the form at .../trunk/build/xsltforms.xsl instead of at its
> earlier target
>
> (2) turn debugging on using <?xsltforms-options debug="yes"?>
>
> (3) reload the form and load one of the sample datasets
>
> (4) click the 'Profile' button in the 'Debug Mode' area at the top
> of the form
>
> (5) read the report, which shows a great deal of useful
> information
>
> (6) click the Step button and return to step 4, or else
> do nothing and return to step 3, or else quit.
>
> The information about which XPath expressions are taking the most
> time is particularly interesting and useful, as it shows that the
> XPath expressions I was most worried about are not in fact the
> ones taking the most time.  If I had spent a lot of time reformulating
> the XPath expressions I was worried about, I would have wasted
> all that time in a perfect illustration of pointless optimization of things
> that don't make a difference.
>
> Long ago a wise man told me 'Never try to optimize until after
> you measure to find out where the time is going'.
>
> The profiler in xsltforms helps a LOT with that.  Bravo, Alain!!
>
>
>
> --
> ****************************************************************
> * C. M. Sperberg-McQueen, Black Mesa Technologies LLC
> * http://www.blackmesatech.com
> * http://cmsmcq.com/mib
> * http://balisage.net
> ****************************************************************
>
>
>
>
>
> ------------------------------------------------------------------------------
> Cloud Services Checklist: Pricing and Packaging Optimization
> This white paper is intended to serve as a reference, checklist and point of
> discussion for anyone considering optimizing the pricing and packaging model
> of a cloud services business. Read Now!
> http://www.accelacomm.com/jaw/sfnl/114/51491232/
> _______________________________________________
> Xsltforms-support mailing list
> Xsl...@li...
> https://lists.sourceforge.net/lists/listinfo/xsltforms-support

[Xsltforms-support] submission replace, targetref issues

[Dhruv A. <dhr...@gm...>]

Hi All

Please have a look at my XForm at http://pastebin.com/X8JhESZi . The
replace and targetref specified on line 11 do work when this form is hosted
via betterFORM but not when implemented via XSLTForms in a browser.

In the case of XSLTForms, I did see an error message in the error console
of Firefox saying that my return value from the resource was a syntactical
error on line 1 of the current document. Appears to me that it wasn't able
to reach the intended element and then of course, presenting only the
return value as a valid XML document to the browser didn't quite work. My
value isn't XML indeed.

I'd be happy if anybody can look into this, or suggest me a quick
workaround.

Thanks in advance!

Dhruv

Re: [Xsltforms-support] getting your feet wet with the profiler (was Re: optimization question)

[C. M. Sperberg-M. <cm...@bl...>]

Just a short report, for the record, of my experience with the profiler
now built into XSLTForms.

Short version:  the profiler is very helpful; in this case three relatively
simple changes produced a five-fold speedup in the form. 

Long version:

Looking at the profile information for the form I was worrying about, 
which had gotten too slow when the document it was operating on got
bigger, I found that the most expensive XPath expressions were those
used for numbering the cells of the stack and for numbering the
instructions in the code area.  I hard-coded appropriate numbers into
attributes in the machine description, and I added a set of actions for
adding a numbering attribute to the instructions in a program, after
loading it. I then replaced each XPath expression of the form 
count(preceding-sibling::cell) +1 or count(preceding-sibling::i) with
a reference to @n.  I also removed the support for editing the program
code; I'll move it to a separate form which communicates with the
main form by bouncing the XML representation of the document off
of a routine on the server.

The first two changes (prenumbering the stack cells and autonumbering
the instructions in the program) reduced the XForms Cumulative Refresh 
Time after loading a program and stepping through 50 cycles of machine
time (i.e. clicking Step 50 times) from 94.6 seconds to 42.3 seconds,
making the program about twice as fast.  

The third change (removing the editing functionality to a separate form)
took it down to 17.7 seconds, another twofold speedup, for a five-fold 
speedup overall.  

Those who are curious can compare the timings and the subjective
experience of the form by looking at the old and new versions of the
form at

http://blackmesatech.com/2011/12/pl0/v01.xhtml (old)
http://blackmesatech.com/2011/12/pl0/index.xhtml (new)

(Hmm.  I notice that the XSLTforms I'm using on that server is
an old version that doesn't yet have the profiler.  I'll have to update soon.)

-- 
****************************************************************
* C. M. Sperberg-McQueen, Black Mesa Technologies LLC
* http://www.blackmesatech.com 
* http://cmsmcq.com/mib                 
* http://balisage.net
****************************************************************

[Xsltforms-support] getting your feet wet with the profiler (was Re: optimization question)

[C. M. Sperberg-M. <cm...@bl...>]

In case there are others who have occasional performance problems
and aren't sure how to deal with them ...  

(This may be old hat to most readers of this list.  But I was taught at 
an impressionable age that the first rule of optimization is "don't do it"
and the second rule is "don't do it yet" -- I see that Wikipedia attributes
this to Michael A. Jackson -- so I have never bothered to worry much
about speed in my XForms work, since I have never had any 
particular problems with it.  If you already know how to use the
xsltforms profiler, you can stop reading now.  If you don't know, and
worry that it might be difficult to set up, keep going.)

On Dec 7, 2011, at 7:42 PM, C. M. Sperberg-McQueen wrote:
> ...
> 
> Are there good ways to see where the time is going?  Are there
> obvious ways to make it faster?  
> 
> Thanks for any tips, suggestions, or thought-provoking questions.


For the record:  shortly after sending this, I remembered that Alain
had recently responded to Jakob Fix saying

> It could be interesting to test with recent SVN build (but before rev. 
> 512 if you need exsltforms), considering that the included profiler 
> tells you in details the different times that can be measured.

Ah, I said.  But how do I turn profiling on? Is this going to be a lot 
of work for me?  

For the benefit of others hesitant in the same way, let me say here:
it's easier than you fear, and it was probably a lot of work for Alain,
but it's not a lot of work for you.  This is what I did:

(1) point the form at .../trunk/build/xsltforms.xsl instead of at its
earlier target

(2) turn debugging on using <?xsltforms-options debug="yes"?> 

(3) reload the form and load one of the sample datasets

(4) click the 'Profile' button in the 'Debug Mode' area at the top
of the form

(5) read the report, which shows a great deal of useful 
information

(6) click the Step button and return to step 4, or else
do nothing and return to step 3, or else quit.

The information about which XPath expressions are taking the most
time is particularly interesting and useful, as it shows that the
XPath expressions I was most worried about are not in fact the
ones taking the most time.  If I had spent a lot of time reformulating
the XPath expressions I was worried about, I would have wasted
all that time in a perfect illustration of pointless optimization of things
that don't make a difference.

Long ago a wise man told me 'Never try to optimize until after 
you measure to find out where the time is going'.  

The profiler in xsltforms helps a LOT with that.  Bravo, Alain!!



-- 
****************************************************************
* C. M. Sperberg-McQueen, Black Mesa Technologies LLC
* http://www.blackmesatech.com 
* http://cmsmcq.com/mib                 
* http://balisage.net
****************************************************************

[Xsltforms-support] optimization question

[C. M. Sperberg-M. <cm...@bl...>]

As a sort of Christmas present to myself, I've used XForms to make a 
small toy:  an implementation of a very simple virtual machine designed
by Nicklaus Wirth to teach compiler writing.  He used it as the target
machine for a compiler for a small subset of Pascal called PL/0.  I guess
it's appropriate that I got it to work properly yesterday, on the Feast of
St. Nicholas.

  http://blackmesatech.com/2011/12/pl0/index.xhtml

In the current state of the page, the user can select from a small 
number of sample programs for this virtual machine, and step through
them one instruction at a time.  So far, so good.

What puzzles me is the difference in response time between the 
relatively small programs for calculating squares of numbers between
1 and n, and the somewhat longer program (but still only a hundred
instructions or so) for using random numbers to estimate the volume
of a sphere.  (N.B. I'm not talking about the very slow method used to
calculate n mod m, which means the user will almost certainly not
have the patience to step all the way through the program.  I'm 
talking about the clock time between clicking the Step button and
the completion of the actions.)  The response time is not particularly 
great on the small programs, but it didn't particularly bother me as I
was working with the form.  But when the code document becomes
larger, the response time degrades significantly.

Are there good ways to see where the time is going?  Are there
obvious ways to make it faster?  

Thanks for any tips, suggestions, or thought-provoking questions.

Michael Sperberg-McQueen

-- 
****************************************************************
* C. M. Sperberg-McQueen, Black Mesa Technologies LLC
* http://www.blackmesatech.com 
* http://cmsmcq.com/mib                 
* http://balisage.net
****************************************************************

[Xsltforms-support] Visualise an instance in a div

[Stephen C. <ste...@gm...>]

Hello,

I am interested in visualising an model instance in a scrolling <div> on
the browser.

I know exsltforms does this but is there any other  way in recent versions
of XSLTForms?

Also is it possible to redirect the debug event information to a second
window?

Thanks

Steve Cameron

[Xsltforms-support] Authentication problems with Safari

[Conal T. <con...@ve...>]

I've come across a compatibility problem using XSLTForms with Safari 5 
on Mac and Windows. If Safari receives an HTTP authentication challenge 
when it submits an XML instance to a server, it fails to present the 
user with an authentication dialog, and the submission simply fails with 
a 401.

It seems to me that this is a bug in Safari's XmlHttpRequest object - it 
should trigger the browser's normal response to an authentication 
challenge (as other browsers do). I guess that a Javascript client of 
the XmlHttpRequest object is expected to explicitly set authentication 
credentials rather than leave it to the browser.

NB if you open the XML instance directly in the browser (i.e. not using 
an XForm) then Safari prompts the user for a password, and authenticates 
with the server. Once the browser has established an authenticated 
session with the server, then the XForm works fine. So a work-around for 
the problem is to ensure that not only the editable XML instances, but 
also the XForms themselves require authentication.

While I'm on the subject, does anyone have any example of capturing user 
credentials actually in an XForm (i.e. with a "credentials" instance?), 
and then using those for basic HTTP authentication? I suppose one have 
to use the digest() function to encode the credentials, and the 
submission header element to submit it?
-- 

Conal Tuohy
eResearch Business Analyst
Victorian eResearch Strategic Initiative
+61-466324297

[Xsltforms-support] itemset binding and checkbox interaction issue

[<st...@sa...>]

Hi, Alain,

Here is a problem I am observing in r521 which looks as though
the nodeset binding on an itemset which depends on the value of
a checkbox is not being updated properly.

To reproduce:

  http://oracc.museum.upenn.edu/itemset-update.xml

  Click on 'Erridupizir 1'

  Click on select1 on lower right of navigation area which
   reads 'English'--you will see an entry labeled
   'No translation'

  Leave the translation on English

  Click on the checkbox labeled 'only'; the display switches
    to show only the translation

  Click on the select1 labeled 'English'--the 'No translation'
    entry has disappeared, correctly

  Click on the 'only' box to toggle it back to 'false'; the
    Sumerian reappears in the text display area

  Click on the select1 labeled 'English' and you see the
    problem: the 'No translation' entry in the select1 has
    not reappeared

You can read the code at a glance, I am sure, but the way
it is supposed to work is that 'No translation' is an
itemset which is supposed to display when the checkbox
transonly is false and hide when transonly is true.

This is with FF 8.0.1 on Mac Lion 10.7.2

  Steve

Re: [Xsltforms-support] question about xsltforms performance

[Alain C. <ala...@ag...>]

Hello Jakob,

What is the version of XSLTForms you're using with MarkLogic Server?

It could be interesting to test with recent SVN build (but before rev. 
512 if you need exsltforms), considering that the included profiler 
tells you in details the different times that can be measured.

Are you defining a complex form, with a lot of HTML elements and XForms 
controls?

Thanks!

-Alain

Le 01/12/2011 11:57, Jakob Fix a écrit :
> Hello,
>
> I'm trying to improve the performance of one of our xsltform-based xforms.
>
> This form is served by a MarkLogic-based web application and takes 
> about 20 to 30 seconds to load.
>
> As you can see below one of the resources (exsltforms.xsl) takes 
> particularly long:
> http://img46.imageshack.us/img46/9208/chrometimeline.png
>
> I've been able to make sure that the time it takes to get the instance 
> data from MarkLogic is negligible, and the retrieval of the several 
> XSLT files seem to be correct as well.
>
> I'm not quite sure what exactly it is spending its time on, so I would 
> be grateful for this list's input.
>
> cheers,
> Jakob.
>

Re: [Xsltforms-support] New names for xforms.dispatch and xforms.refresh?

[Alain C. <ala...@ag...>]

Hi Grégoire,

XMLEvents.dispatch -> XsltForms_xmlevents.dispatch
xforms.refresh -> XsltForms_globals.refresh
xforms.ready -> XsltForms_globals.ready

Thank you for your feedbacks!

-Alain

Le 01/12/2011 17:42, Grégoire COLBERT a écrit :
> Hi Alain,
>
> I'm still in the process of updating my own JS code to the new naming
> scheme, and I wonder what to do with :
> - xforms.dispatch
> - xforms.refresh
> - xforms. ready
>
> Looking in the new code, I supposed it would work with :
> - XsltForms_events.dispatch
> - XsltForms_browser.refresh
> - XsltForms_globals.ready
>
> but it returns errors like this one : "XsltForms_browser.refresh is not
> a function".
>
> Any help would help. :-)
>
> Thanks,
> Grégoire
>
> ------------------------------------------------------------------------------
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-novd2d
> _______________________________________________
> Xsltforms-support mailing list
> Xsl...@li...
> https://lists.sourceforge.net/lists/listinfo/xsltforms-support
>

Re: [Xsltforms-support] Using insert where both source and destination contain bindings

[Alain C. <ala...@ag...>]

Hi Gordon,

The Javascript class names have all been recently changed to avoid any 
future conflict with external libraries, for example.

exsltforms should be adapted to work again with the latest builds of 
XSLTForms.

BTW, XSLTForms now includes its own TinyMCE integration if it was the 
reason for you to use exsltforms.

Thanks!

-Alain

Le 02/12/2011 10:12, Gordon Rogers a écrit :
>
> Hi Alain
>
> Sorry that was my mistake, the errors were coming from exsltforms and 
> not xsltforms.
>
> Gordon
>
> *From:*Alain Couthures [mailto:ala...@ag...]
> *Sent:* 29 November 2011 20:31
> *To:* Gordon Rogers
> *Cc:* xsl...@li...
> *Subject:* Re: [Xsltforms-support] Using insert where both source and 
> destination contain bindings
>
> Hi Gordon,
>
> Rev. 520 xsltforms.js doesn't contain any Core.<method>... Did you 
> really upgrade to it??
>
> -Alain
>
> Le 29/11/2011 14:59, Gordon Rogers a écrit :
>
> Hi Alain
>
> Thanks for the prompt feedback, I'm in the process of upgrading my 
> version of xsltforms and it does indeed solve this bug. In passing I 
> noticed a few places in xsltforms.js where you're still using 
> Core.<method> rather than XsltForms_browser.<method>, I can't 
> contribute the changes I've made unfortunately as we've added some 
> custom code in places within the js file so it wouldn't be compatible.
>
> Thanks,
> Gordon
>
> *From:*Alain Couthures [mailto:ala...@ag...]
> *Sent:* 26 November 2011 21:26
> *To:* Gordon Rogers
> *Cc:* xsl...@li... 
> <mailto:xsl...@li...>
> *Subject:* Re: [Xsltforms-support] Using insert where both source and 
> destination contain bindings
>
> Hi Gordon,
>
> I didn't get any error with the latest trunk revision in the SF SVN 
> repository (this is not yet the 1.0RC but it's close to it!).
>
> Thank you for your feedbacks!
>
> -Alain
>
> Le 25/11/2011 10:43, Gordon Rogers a écrit :
>
> Hi
>
> I've recently upgraded my version of xsltforms to the latest release 
> and have started to receive the error message -- "Two binds affect one 
> node ..." this is thrown from within XFBind.prototype.refresh and 
> occurs when I'm doing an xf:insert with bindings in place for both the 
> source and the destination. The insert appears to work regardless of 
> the error message being thrown, so I'm not sure of the value in making 
> the validation check.
>
> I've attached a simple example that recreates the error and is based 
> on the deep-copy.xml example distributed with xsltforms.js.
>
> Is there an obvious fix to this problem? My initial thought was to 
> remove the validation check locally, but I'm not sure of the 
> underlying reason for introducing that check. Is a repeat a special 
> case where the check has no meaning?
>
> Thanks,
>
> Gordon
>
> *Gordon Rogers*
>
> Senior Developer
>
> Corelogic Limited
>
> www.corelogic.co.uk <http://www.corelogic.co.uk/>
>
> Tel:       0131 550 0447
>
> Email _go...@co... 
> <mailto:gor...@co...>_
>
> This document should only be read by those persons to whom it is 
> intended, and its contents are private and confidential. If you 
> receive this email message in error, notify the sender immediately and 
> do not disclose, copy or distribute this message, or open any attachments
>
>
>
>
>
> ------------------------------------------------------------------------------
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-novd2d
>
>
>
>
>
> _______________________________________________
> Xsltforms-support mailing list
> Xsl...@li...  <mailto:Xsl...@li...>
> https://lists.sourceforge.net/lists/listinfo/xsltforms-support
>

Re: [Xsltforms-support] Using insert where both source and destination contain bindings

[Gordon R. <gor...@co...>]

Hi Alain

 

Sorry that was my mistake, the errors were coming from exsltforms and not xsltforms.

 

Gordon

 

From: Alain Couthures [mailto:ala...@ag...] 
Sent: 29 November 2011 20:31
To: Gordon Rogers
Cc: xsl...@li...
Subject: Re: [Xsltforms-support] Using insert where both source and destination contain bindings

 

Hi Gordon,

Rev. 520 xsltforms.js doesn't contain any Core.<method>... Did you really upgrade to it??

-Alain

Le 29/11/2011 14:59, Gordon Rogers a écrit : 

Hi Alain

 

Thanks for the prompt feedback, I'm in the process of upgrading my version of xsltforms and it does indeed solve this bug. In passing I noticed a few places in xsltforms.js where you're still using Core.<method> rather than XsltForms_browser.<method>, I can't contribute the changes I've made unfortunately as we've added some custom code in places within the js file so it wouldn't be compatible.

 

Thanks,
Gordon

 

From: Alain Couthures [mailto:ala...@ag...] 
Sent: 26 November 2011 21:26
To: Gordon Rogers
Cc: xsl...@li...
Subject: Re: [Xsltforms-support] Using insert where both source and destination contain bindings

 

Hi Gordon,

I didn't get any error with the latest trunk revision in the SF SVN repository (this is not yet the 1.0RC but it's close to it!).

Thank you for your feedbacks!

-Alain

Le 25/11/2011 10:43, Gordon Rogers a écrit : 

Hi

 

I've recently upgraded my version of xsltforms to the latest release and have started to receive the error message - "Two binds affect one node ..." this is thrown from within XFBind.prototype.refresh and occurs when I'm doing an xf:insert with bindings in place for both the source and the destination. The insert appears to work regardless of the error message being thrown, so I'm not sure of the value in making the validation check.

 

I've attached a simple example that recreates the error and is based on the deep-copy.xml example distributed with xsltforms.js. 

 

Is there an obvious fix to this problem? My initial thought was to remove the validation check locally, but I'm not sure of the underlying reason for introducing that check. Is a repeat a special case where the check has no meaning?

 

Thanks,

Gordon

 

Gordon Rogers

Senior Developer

Corelogic Limited

www.corelogic.co.uk <http://www.corelogic.co.uk/> 

Tel:       0131 550 0447

Email     gor...@co...

 

This document should only be read by those persons to whom it is intended, and its contents are private and confidential. If you receive this email message in error, notify the sender immediately and do not disclose, copy or distribute this message, or open any attachments

 







------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure 
contains a definitive record of customers, application performance, 
security threats, fraudulent activity, and more. Splunk takes this 
data and makes sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-novd2d







_______________________________________________
Xsltforms-support mailing list
Xsl...@li...
https://lists.sourceforge.net/lists/listinfo/xsltforms-support

 

 

[Xsltforms-support] New names for xforms.dispatch and xforms.refresh?

[Grégoire C. <gco...@gm...>]

Hi Alain,

I'm still in the process of updating my own JS code to the new naming
scheme, and I wonder what to do with :
- xforms.dispatch
- xforms.refresh
- xforms. ready

Looking in the new code, I supposed it would work with :
- XsltForms_events.dispatch
- XsltForms_browser.refresh
- XsltForms_globals.ready

but it returns errors like this one : "XsltForms_browser.refresh is not
a function".

Any help would help. :-)

Thanks,
Grégoire

[Xsltforms-support] question about xsltforms performance

[Jakob F. <jak...@gm...>]

Hello,

I'm trying to improve the performance of one of our xsltform-based xforms.

This form is served by a MarkLogic-based web application and takes about 20
to 30 seconds to load.

As you can see below one of the resources (exsltforms.xsl) takes
particularly long:
http://img46.imageshack.us/img46/9208/chrometimeline.png

I've been able to make sure that the time it takes to get the instance data
from MarkLogic is negligible, and the retrieval of the several XSLT files
seem to be correct as well.

I'm not quite sure what exactly it is spending its time on, so I would be
grateful for this list's input.

cheers,
Jakob.

Re: [Xsltforms-support] Using insert where both source and destination contain bindings

[Alain C. <ala...@ag...>]

Hi Gordon,

Rev. 520 xsltforms.js doesn't contain any Core.<method>... Did you 
really upgrade to it??

-Alain

Le 29/11/2011 14:59, Gordon Rogers a écrit :
>
> Hi Alain
>
> Thanks for the prompt feedback, I'm in the process of upgrading my 
> version of xsltforms and it does indeed solve this bug. In passing I 
> noticed a few places in xsltforms.js where you're still using 
> Core.<method> rather than XsltForms_browser.<method>, I can't 
> contribute the changes I've made unfortunately as we've added some 
> custom code in places within the js file so it wouldn't be compatible.
>
> Thanks,
> Gordon
>
> *From:*Alain Couthures [mailto:ala...@ag...]
> *Sent:* 26 November 2011 21:26
> *To:* Gordon Rogers
> *Cc:* xsl...@li...
> *Subject:* Re: [Xsltforms-support] Using insert where both source and 
> destination contain bindings
>
> Hi Gordon,
>
> I didn't get any error with the latest trunk revision in the SF SVN 
> repository (this is not yet the 1.0RC but it's close to it!).
>
> Thank you for your feedbacks!
>
> -Alain
>
> Le 25/11/2011 10:43, Gordon Rogers a écrit :
>
> Hi
>
> I've recently upgraded my version of xsltforms to the latest release 
> and have started to receive the error message -- "Two binds affect one 
> node ..." this is thrown from within XFBind.prototype.refresh and 
> occurs when I'm doing an xf:insert with bindings in place for both the 
> source and the destination. The insert appears to work regardless of 
> the error message being thrown, so I'm not sure of the value in making 
> the validation check.
>
> I've attached a simple example that recreates the error and is based 
> on the deep-copy.xml example distributed with xsltforms.js.
>
> Is there an obvious fix to this problem? My initial thought was to 
> remove the validation check locally, but I'm not sure of the 
> underlying reason for introducing that check. Is a repeat a special 
> case where the check has no meaning?
>
> Thanks,
>
> Gordon
>
> *Gordon Rogers*
>
> Senior Developer
>
> Corelogic Limited
>
> www.corelogic.co.uk <http://www.corelogic.co.uk/>
>
> Tel:       0131 550 0447
>
> Email _go...@co... 
> <mailto:gor...@co...>_
>
> This document should only be read by those persons to whom it is 
> intended, and its contents are private and confidential. If you 
> receive this email message in error, notify the sender immediately and 
> do not disclose, copy or distribute this message, or open any attachments
>
>
>
>
> ------------------------------------------------------------------------------
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-novd2d
>
>
>
>
> _______________________________________________
> Xsltforms-support mailing list
> Xsl...@li...  <mailto:Xsl...@li...>
> https://lists.sourceforge.net/lists/listinfo/xsltforms-support
>

Re: [Xsltforms-support] Using insert where both source and destination contain bindings

[Gordon R. <gor...@co...>]

Hi Alain

 

Thanks for the prompt feedback, I'm in the process of upgrading my version of xsltforms and it does indeed solve this bug. In passing I noticed a few places in xsltforms.js where you're still using Core.<method> rather than XsltForms_browser.<method>, I can't contribute the changes I've made unfortunately as we've added some custom code in places within the js file so it wouldn't be compatible.

 

Thanks,
Gordon

 

From: Alain Couthures [mailto:ala...@ag...] 
Sent: 26 November 2011 21:26
To: Gordon Rogers
Cc: xsl...@li...
Subject: Re: [Xsltforms-support] Using insert where both source and destination contain bindings

 

Hi Gordon,

I didn't get any error with the latest trunk revision in the SF SVN repository (this is not yet the 1.0RC but it's close to it!).

Thank you for your feedbacks!

-Alain

Le 25/11/2011 10:43, Gordon Rogers a écrit : 

Hi

 

I've recently upgraded my version of xsltforms to the latest release and have started to receive the error message - "Two binds affect one node ..." this is thrown from within XFBind.prototype.refresh and occurs when I'm doing an xf:insert with bindings in place for both the source and the destination. The insert appears to work regardless of the error message being thrown, so I'm not sure of the value in making the validation check.

 

I've attached a simple example that recreates the error and is based on the deep-copy.xml example distributed with xsltforms.js. 

 

Is there an obvious fix to this problem? My initial thought was to remove the validation check locally, but I'm not sure of the underlying reason for introducing that check. Is a repeat a special case where the check has no meaning?

 

Thanks,

Gordon

 

Gordon Rogers

Senior Developer

Corelogic Limited

www.corelogic.co.uk <http://www.corelogic.co.uk/> 

Tel:       0131 550 0447

Email     gor...@co...

 

This document should only be read by those persons to whom it is intended, and its contents are private and confidential. If you receive this email message in error, notify the sender immediately and do not disclose, copy or distribute this message, or open any attachments

 






------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure 
contains a definitive record of customers, application performance, 
security threats, fraudulent activity, and more. Splunk takes this 
data and makes sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-novd2d






_______________________________________________
Xsltforms-support mailing list
Xsl...@li...
https://lists.sourceforge.net/lists/listinfo/xsltforms-support