XSLT 3.0 Improvements - XML Prague 2018
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The document outlines the improvements in XSLT, XPath, and XQuery as showcased at a user meetup in Prague in 2017, highlighting updates such as XSLT 3.0 features, syntax highlighting, and code checks for quality assurance. It discusses the introduction of shadow attributes, enhanced refactoring capabilities, and ongoing updates to Saxon. Additionally, it emphasizes new documentation and validation tools to ensure optimal use of XSLT in various applications.
![XSLT ImprovementsXSLT Improvements
Copyright @ Syncro Soft, 2018. All rights reserved.
XSLT Code Checks
● Code quality assurance
– [XSLTFramework]/sch/xsltCodeQA.sch
● Bad practice checks
– [XSLTFramework]/sch/xsltBadPractices.sch
● Documentation checks
– [XSLTFramework]/sch/xsltDocCheck.sch](https://image.slidesharecdn.com/xslt-180209092352/85/XSLT-3-0-Improvements-XML-Prague-2018-8-320.jpg)
![XSLT ImprovementsXSLT Improvements
Copyright @ Syncro Soft, 2018. All rights reserved.
XSLT Bad Practice Checks
● XPath expression from attributes references
elements with the same name as
variables/params defined in the context
● XPath expression from the text value template
references elements with the same name as
variables/params defined in the context
<xsl:param name="lang" select="'en'"/>
….
<xsl:variable name="persons" select="person/name[@language=lang]"/>
<xsl:variable name="persons" select="//person/name"/>
...
<xsl:message expand-text="true">{persons/given}</xsl:message>](https://image.slidesharecdn.com/xslt-180209092352/85/XSLT-3-0-Improvements-XML-Prague-2018-10-320.jpg)
XSLT 3.0 Improvements - XML Prague 2018
- 1. XSLT Improvements Oxygen Users Meetup, Prague, 2017 © 2017 Syncro Soft SRL. All rights reserved. Octavian Nadolu, Syncro Soft octavian_nadolu@oxygenxml.com @OctavianNadolu
- 2. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. Overview ● XSLT 3.0 updates ● XPath/XQuery 3.1 ● Checks for the XSLT code ● Saxon update
- 3. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. Updated the XSLT 3.0 Support ● Text Value Templates ● Initial Template ● Shadow Attributes w3.org/TR/xslt-30
- 4. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. XSLT 3.0 Text Value Templates ● Oxygen offers built-in support for XSLT 3.0 Text Value Templates ● Content completion to present the variables and parameters ● Syntax highlighting w3.org/TR/xslt-30/#text-value-templates <xsl:function name="f:sum" expand-text="yes" as="xs:integer"> <xsl:param name="x" as="xs:integer"/> <xsl:param name="y" as="xs:integer"/> {$x + $y} </xsl:function>
- 5. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. XSLT 3.0 Initial Template ● Support for xsl:initial-template w3.org/TR/xslt-30/#invoking-initial-template <xsl:template name="xsl:initial-template"> <xsl:value-of select="f:sum(4, 5)"/> </xsl:template>
- 6. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. XSLT 3.0 Shadow Attributes ● Support for shadow attributes ● Content completion ● Documentation w3.org/TR/xslt-30/#shadow-attributes <xsl:param name="output-method" static="yes" select="'xml'"/> <xsl:output _method="{$output-method}"/>
- 7. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. XPath/XQuery 3.1 ● Validation ● Execution ● Syntax highlight – Maps: w3.org/TR/xpath-31/#id-maps – Arrays: w3.org/TR/xpath-31/#id-arrays – Lookup operator (?): w3.org/TR/xpath-31/#id-lookup – Simple Map operator (!): w3.org/TR/xpath-31/#id-map-operator map { 'first' : 'Jenna', 'last' : 'Scott' }?first array { "licorice", "ginger" }(1)
- 8. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. XSLT Code Checks ● Code quality assurance – [XSLTFramework]/sch/xsltCodeQA.sch ● Bad practice checks – [XSLTFramework]/sch/xsltBadPractices.sch ● Documentation checks – [XSLTFramework]/sch/xsltDocCheck.sch
- 9. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. XSLT Code Quality Assurance ● Check if an xsl:attribute contains variables or parameters in the text part ● Fixes – Insert 'xsl:value-of' element (for XSLT 1.0/2.0) – Insert Text Value Template (for XSLT 3.0) <xsl:attribute name="margin-right">$page-margin-inside</xsl:attribute>
- 10. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. XSLT Bad Practice Checks ● XPath expression from attributes references elements with the same name as variables/params defined in the context ● XPath expression from the text value template references elements with the same name as variables/params defined in the context <xsl:param name="lang" select="'en'"/> …. <xsl:variable name="persons" select="person/name[@language=lang]"/> <xsl:variable name="persons" select="//person/name"/> ... <xsl:message expand-text="true">{persons/given}</xsl:message>
- 11. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. XSLT Documentation Checks ● Report the undocumented template – Add documentation for parameter(s) – Add documentation for parameter(s) in the whole document ● Report the parameters that are documented but not present in the template – Add missing parameter(s) – Delete unbound documentation parameter(s)
- 12. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. Improved Refactoring Support ● Extract template - detects parameters more accurately ● Extract function - allows you to use parts of an XPath expression to create new functions ● Convert xsl:if into xsl:choose - converts one or more xsl:if element blocks into one or more xsl:when blocks oxygenxml.com/doc/ug-editor/topics/xslt-refactoring-actions.html
- 13. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. Compile XSL Stylesheet ● Tool to Compile XSL Stylesheet Export Files as an XML file called a stylesheet export file (sef) oxygenxml.com/ug-editor/topics/compile-xsl-for-saxon.html
- 14. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. Debugger Editors are Dockable ● XSLT and XQuery Debugger editors and views are now dockable ● You can rearrange the workspace according to your preference ● Debugger layout option allows you to stack the editors horizontal or vertical
- 15. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. Saxon Update ● We keep updating Saxon – Saxon 9.7.0.19 in <oXygen/> 19.1 – Saxon 9.8.0.5 available as <oXygen/> add-on – Saxon 9.8.0.8 update in progress <oXygen/> 20.0 www.saxonica.com
- 16. XSLT ImprovementsXSLT Improvements Copyright @ Syncro Soft, 2018. All rights reserved. <oXygen/> XML Editor http://www.oxygenxml.com octavian_nadolu@oxygenxml.com @OctavianNadolu THANK YOU! Any questions?