Re: [ACTION-169] Reference Mechanism

"Necessity is the mother of invention". Look forward to discussing all of these innovative proposals later.

Phil



On 23 Jul 2012, at 19:22, "Felix Sasaki" <fsasaki@w3.org> wrote:

> Hi Yves, all,
> 
> one further solution I could think of would be two "pointer" attributes: one is pointing to the "ref" attribute, the other to the external element:
> 
>  <its:rules version="2.0">
>       <its:qaErrorRule selector="//xlf:mrk[@type='itsqa']"
>         errorInfoRefPointer="@ref" errorExternalInfoPointer="//itsqa:error[@id=substring-after($errorInfoRefPointer,'#')]/@info"/>
>         xmlns:xlf="urn:oasis:names:tc:entity:xmlns:xml:catalog"/>
>     </its:rules>
> 
> We when could say that errorExternalInfoPointer MUST contain a variable that is called "errorInfoRefPointer" and is bound by the XPath expression in errorInfoRefPointer.
> 
> This is also not very clean, but it removes the dependency on XPath 2.0. 
> 
> Phil, maybe this also helps to make the indirection clearer, let's also discuss this tomorrow.
> 
> Felix
> 
> 2012/7/15 Yves Savourel <ysavourel@enlaso.com>
> Hi Felix, all
> 
>  
> 
> Nice expression. It’s good to see that it’s somewhat doable.
> 
>  
> 
> But obviously the dependency to XPath 2.0 is damping my enthusiasm. A minor other question is whether such expression qualifies as ‘relative to the selected node’? But, even if not, I suppose we could change the second part of the expression to get the itsqa:error element differently.
> 
>  
> 
> If there is no XPath 1.0 solution, would there be another way to define itsqa:error so it can be used more easily with a relative XPath 1.0 expression?
> 
>  
> 
> In any case, I think your solution certainly removes the road block I was afraid of. I just wish the detour would be easier.
> 
>  
> 
> Enjoy your vacations,
> 
> -yves
> 
> 
>  
> 
> From: Felix Sasaki [mailto:fsasaki@w3.org] 
> Sent: Saturday, July 14, 2012 8:31 PM
> To: Yves Savourel
> Cc: public-multilingualweb-lt@w3.org
> Subject: Re: [ACTION-169] Reference Mechanism
> 
>  
> 
> Hi Yves,
> 
>  
> 
> I implemented the its:qaErrorRule element, and was able to resolve the reference to
> 
> info="Should be USB key"
> 
> My "artificial" output looks like this:
> 
> <node path="/doc/body[1]/xlf:unit[1]/xlf:segment[1]/xlf:target[1]/xlf:mrk[1]"
>             outputType="new-value-global">
>          <output xmlns:xlf="urn:oasis:names:tc:entity:xmlns:xml:catalog"
>                  xmlns:itsqa="http://example.com/itsqa">
>             <errorInfoRefPointer info="Should be USB key"/>
>          </output></node>
> 
> That is, I associate 
> 
> info="Should be USB key"
> 
> with the "mrk" element, which I think is what you want.
> 
>  
> 
> The rules file for doing this looks like this:
> 
>  <its:rules version="2.0">
>       <its:qaErrorRule selector="//xlf:mrk[@type='itsqa']"
>         errorInfoRefPointer="for $ref in @ref return //itsqa:error[@id=substring-after($ref,'#')]/@info"
>         xmlns:xlf="urn:oasis:names:tc:entity:xmlns:xml:catalog"/>
>     </its:rules>
> 
> You see that solving the problem has a price: I am using XPath 2.0. This gives me the ability to write the following relative path expression:
> 
>  
> 
> for $ref in @ref return //itsqa:error[@id=substring-after($ref,'#')]/@info
> 
>  
> 
> This means that I am binding the "ref" attribute to a variable. with the part
> 
> //itsqa:error[@id=substring-after($ref,'#')]/@info
> 
> I am then getting the "info" attribute that I need.
> 
>  
> 
> So if we go this route implementations that want to do the level of indirection need to use XPath 2.0. There might be a solution with XPath 1.0, maybe Jirka has an idea? Otherwise, I would prefer to use XPath 2.0 instead of introducing a new mechanism in global rules for resolving the reference. 
> 
> 
> Best,
> 
>  
> 
> Felix
> 
>  
> 
> 2012/7/13 Yves Savourel <ysavourel@enlaso.com>
> 
> Hi everyone,
> 
> While discussing the qa-error data category we ran into a use case where using inline attributes is not practical and where, instead, some reference mechanism is needed. This issue may not be specific to the qa-error data category.
> 
> The current proposal for qa-error calls for using one or more local attributes that can be applied directly to the content of the element where they are. For example:
> 
> <p>Insert the <span its-error="yes" its-error-info="Should be USB key" its-error-xyz="data">Pen Drive</span> in the USB port</p>
> 
> A example of a format where this is not practical is XLIFF 2.0:
> 
> In such file the element used to annotate the content (<mrk>) does not allow non-XLIFF attributes. Instead it offers two options:
> 
> a) to use user-defined types along with a single string value:
> 
> <target>Insert the <mrk id="m1" type="mytype" value="myvalue">Pen Drive</mrk> in the USB port</target>
> 
> Or b) to use a user-defined type along with a pointer to an element residing in the unit where the content is located. That element can be user-defined. For example:
> 
> <unit id="1">
>  <segment>
>   <source>Insérez la clé USB dans le port USB.</source>
>   <target>Insert the <mrk id="m1" type="itsqa" ref="#a1">Pen Drive</mrk> in the USB port</target>
>  </segment>
>  <itsqa:error id="a1" info="Should be USB key" xyz="data"/>
> </unit>
> 
> This example has the ITS qa-error data category implemented. But a tool that is just ITS-aware cannot find the corresponding info for it.
> 
> The solution is similar to the data categories such as Localization Note (http://www.w3.org/TR/its/#locNote-implementation) or Terminology (http://www.w3.org/TR/its/#terminology-implementation), where we define global rules that map the data category features to the non-ITS markup.
> 
> The possible extra catch here is that, as far as I can tell--and I really hope a URI expert will contradict me here--none of the pointing mechanisms we have in ITS 1.0 can handle the reference used in the XLIFF case.
> 
> For example, with something like:
> 
> <its:qaErrorRule selector="//xlf:mrk[@type='itsqa']" errorInfoRefPointer="@ref"/>
> 
> errorinforefPointer would contains a relative XPath expression pointing to a node that holds the URI referring to the error information. But itsqa:error does not contain directly that information, itsqa:error@info does.
> 
> So, the question is: is there a pointing mechanism that we could use to map the different data of qa-error to either attributes or elements that are grouped under a single element?
> 
> Cheers,
> -ys
> 
> 
> 
> 
> 
> 
>  
> 
> -- 
> Felix Sasaki
> 
> DFKI / W3C Fellow
> 
>  
> 
> 
> 
> 
> -- 
> Felix Sasaki
> DFKI / W3C Fellow
> 


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