Re: Import validation

On page 251 of the eXist book that was published in December 2014, there
are generic validation functions.  I wonder if they were removed as eXist
advanced.

On Fri, Dec 15, 2023, 12:54 PM Pieter Lamers <[email protected]>
wrote:

> Hi Ted,
>
> Where on http://exist-db.org/exist/apps/fundocs/index.html did you find a
> function validation:validate-report#2 ? I don't see it.
>
> Best,
> Pieter
>
> On 15/12/2023 18:28, Ted Hickox wrote:
>
> I finally understand most of what is going on here.  The validation module
> is sort of like an object in object oriented programming.  The clear
> grammar cache is like an object method.  And the validation report is like
> an object method.  I inserted the new line of code as everyone here has
> suggested.  But I received a new error:
>
> xquery version "3.0";
> import module namespace validation="http://exist-db.org/xquery/validation
> ";
> let $schema :=
> xs:anyURI('/db/apps/HTML_Student/SVG_Ellipse_Webpage_XML_Schema.xsd')
> let $instance :=
> xs:anyURI('/db/apps/HTML_Student/SVG_Ellipse_Webpage_XML.xml')
> return
> (validation:clear-grammar-cache(), validation:validate-report($instance,
> $schema))
>
>  Function validation:validate-report() is not defined in module namespace:
> http://exist-db.org/xquery/validation [at line 5, column 36]
>
>  I'm guessing that this "method" doesn't exist in this module.  Where does
> it exist?
>
> nction validation:validate-report() is not defined in module namespace:
> http://exist-db.org/xquery/validation [at line 5, column 36]
>
> Function validation:validate-report() is not defined in module namespace:
> http://exist-db.org/xquery/validation
> Function validation:validate-report() is not defined in module namespace:
> http://exist-db.org/xquery/validation
>
> On Thu, Dec 14, 2023 at 6:04 PM Michael Westbay <
> [email protected]> wrote:
>
>> Hi Ted,
>>
>> Let's first break down your program:
>>
>> xquery version "3.0";
>>> let $schema :=
>>> xs:anyURI('/db/apps/HTML_Student/SVG_Ellipse_Webpage_XML_Schema.xsd')
>>> let $instance :=
>>> xs:anyURI('/db/apps/HTML_Student/SVG_Ellipse_Webpage_XML.xml')
>>> return
>>> (validation:clear-grammar-cache(), validation:validate-report($instance,
>>> $schema))
>>>
>>
>> The two *let* statements assign values to the variables *$schemai and
>> $instance*. So far, so good.
>>
>> Then you make two function calls in the *return* statement, these to:
>>
>> ・ *validation:clear-grammar-cache*()
>> ・ *validation:validate-report*(...)
>>
>> The *validation* namespace is NOT built into XQuery. It needs to be
>> loaded into your program.
>>
>> A quick check of the XQuery Function Documentation for "validation" (
>> https://exist-db.org/exist/apps/fundocs/index.html) shows that the
>> namespace of *http://exist-db.org/xquery/validation
>> <http://exist-db.org/xquery/validation>* has the first function, but not
>> the second. The closest function to the second is the
>> *validation:jaxp-report/3* function:
>>
>> validation:jaxp-report
>>
>> validation:jaxp-report($instance as item(), $enable-grammar-cache as xs:boolean, $catalogs as item()*) as node()
>>
>> Validate document by parsing $instance. Optionally grammar caching can be
>> enabled and an XML catalog can be specified. Supported grammars types are
>> '.xsd' and '.dtd'. An XML report is returned.
>> Parameters:
>> $instance The document referenced as xs:anyURI, a node (element or
>> result of fn:doc()) or as a Java file object.
>> $enable-grammar-cache Set the flag to true() to enable grammar caching.
>> $catalogs* The catalogs referenced as xs:anyURI's. Returns: node() : a
>> validation report.
>>
>>
>> To import the *validation* namespace into your program, enter the
>> following after the XQuery version line:
>>
>> import module namespace "http://exist-db.org/xquery/validation";
>>
>>
>> Importing modules is one of the core functionalities of XQuery for code
>> reuse. I strongly recommend reading this page about creating (and using)
>> XQuery functions from the XQuery WikiBook:
>>
>> https://en.wikibooks.org/wiki/XQuery/Creating_XQuery_Functions
>>
>>
>> That explains how to create your own modules and import them. The example
>> I provided above (which doesn't have the *at* clause) is for modules
>> built into eXist.
>>
>> The XQuery Function Documentation page and XQuery WikiBook are two
>> resources you should have bookmarked.
>>
>> Hope this helps.
>>
>> --
>> Michael Westbay
>> Writer/System Administrator
>> http://www.japanesebaseball.com/
>>
>
>
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>
> --
> Pieter Lamers
> John Benjamins Publishing Company
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