Re: [Exist-development] [exist:code] dizzzz committed to eXist-db Code: [ignore] introduction of function namespace "http://www.w3.org/2005/xpath-functions/math" of xquery3/xpath3 (see http://www.w3.org/TR/xpath-functions-30/#trigonometry). Basically it is a copy/stripdown from the already existing eXist-db math extension I wrote ages ago; the latter will be stripped so there will be no functions doubled. WorkInProgress.

[Dave F. <dav...@gm...>]

Ah, found it. It's *math:pow()* (I found it here:
http://www.w3.org/TR/xpath-functions-30/)


On Mon, Dec 3, 2012 at 9:27 AM, Dave Finton <dav...@gm...> wrote:

> Ah, got it. I'm still processing my first cup of coffee this morning. This
> worked for all function calls except for the following error I get. I've
> tried the math and math-ext namespaces, but the power() function doesn't
> exist in either
>
> Function math-ext:power() is not defined in module namespace:
> http://exist-db.org/xquery/math
>
>
> On Mon, Dec 3, 2012 at 9:23 AM, Dannes Wessels <da...@ex...>wrote:
>
>> it should read math-ext:abs() ;
>>
>> note that the w3c/math namespace does not contain the abs() function
>> ...... that is why I retained the math-ext: namespace :-)
>>
>> anyway, i'll bring the original functions back again, mark them
>> deprecated, to have them removed in 2.1/2.2/....
>>
>> cheers
>>
>> Dannes
>>
>>
>> On Mon, Dec 3, 2012 at 4:19 PM, Dave Finton <dav...@gm...>wrote:
>>
>>> Is there by chance a workaround to this error I am getting? I tried
>>> using "mathext" as the namespace as suggested previously, but the nature of
>>> the error did not change at all:
>>>
>>> Function math:abs() is not defined in module namespace:
>>> http://www.w3.org/2005/xpath-functions/math
>>>
>>> Other math functions I have dependencies on are math:ceil, math:floor,
>>> and math:power.
>>>
>>> I tried referring to the documentation but I'm also having difficulties
>>> getting the dashboard to work properly today. ;)
>>>
>>>
>>> On Sun, Dec 2, 2012 at 3:59 PM, Adam Retter <ad...@ex...> wrote:
>>>
>>>>
>>>> Aahhh, right, I did not think about the deprecation possibility. Hmmmm
>>>>> there is one serious issue however, the default 'prefix' "math" is now used
>>>>> by the 'official' namespace, that would cause a problem anyway? I
>>>>> relabelled it to "math-ext".
>>>>>
>>>>
>>>> You dont need to change the prefix. The prefix is opaque, its the
>>>> namespace that matters. That said it doesnt matter if you change the prefix
>>>> because it is opaque.
>>>>
>>>>
>>>>>
>>>>> hmmmm I deleted the double functions already, well I can revert it if
>>>>> we want to.
>>>>>
>>>>
>>>> I think we must.
>>>>
>>>>
>>>>>  Can we think of a smart design where the old extension uses code from
>>>>> the new function library? The ultimate goal is not to have double code (I'd
>>>>> rather avoid that, politely said)
>>>>>
>>>>
>>>> Sure, bring the math module into the core code-base rather than as
>>>> external and then abstract the core code into business logic classes and
>>>> call from both function wrappers. Or only move the now W3C common code into
>>>> the core, abstract it still and then have the math module call it.
>>>>
>>>>
>>>>>
>>>>> cheers
>>>>>
>>>>
>>>> Cheers :-p
>>>>
>>>>>
>>>>> Dannes
>>>>>
>>>>> eXist-db Native XML Database
>>>>> http://www.exist-db.org
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Adam Retter
>>>>
>>>> eXist Developer
>>>> { United Kingdom }
>>>> ad...@ex...
>>>> irc://irc.freenode.net/existdb
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
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>>>>
>>>
>>>
>>> --
>>> David Finton
>>>
>>
>>
>>
>> --
>> eXist-db Native XML Database - http://exist-db.org
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>>
>
>
>
> --
> David Finton
>



-- 
David Finton