XSLT/XPath for Visual Studio Code installs statistics

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XSLT/XPath for Visual Studio Code

The XSLT/XPath extension for VSCode provides comprehensive language support for XSLT 3.0 and XPath 3.1, and for the XSLT 4.0 and XPath 4.0 features implemented in Saxon 13. This ReadMe is merely a 'quick start' guide, see the XSLT/XPath User Guide for more comprehensive help.

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<p align="center"> <em>XSLT 4.0 with a documentation note, its hover help where the function is called, and the XSLT Imports view:</em> <img alt="XSLT Editor" src="https://github.com/DeltaXML/vscode-xslt-tokenizer/raw/HEAD/vscode-xslt-notes.png"> </p>

Features

This release adds full support for XSLT 4.0 in Saxon 13 - see Release 2.0 Highlights.

<table> <tr> <td width="50%" valign="top"> <h4><a href="https://deltaxml.github.io/vscode-xslt-xpath/xslt40.html">XSLT &amp; XPath languages</a></h4> <ul> <li><a href="https://www.w3.org/TR/xslt-30/">XSLT 3.0</a> and XPath 3.1</li> <li><a href="https://qt4cg.org/2026-01-28/xslt-40/Overview.html">XSLT 4.0</a> and XPath 4.0, as in <a href="https://www.saxonica.com/html/documentation13/changes/v13/xslt40.html">Saxon 13</a></li> <li>SaxonJS interactive extensions (IXSL)</li> <li><code>.xpath</code> files, as XPath 4.0</li> <li>Fast semantic highlighting</li> </ul> </td> <td width="50%" valign="top"> <h4><a href="https://deltaxml.github.io/vscode-xslt-xpath/xslt40-records.html">XSLT 4.0</a></h4> <ul> <li>Record and enum types, with type-aware checks</li> <li>Named item types: <code>xsl:item-type</code></li> <li><code>xsl:switch</code>, with missing-case quick fixes</li> <li>Keyword arguments and optional parameters</li> <li>Functions in no namespace</li> </ul> </td> </tr> <tr> <td width="50%" valign="top"> <h4><a href="https://deltaxml.github.io/vscode-xslt-xpath/editing-xslt.html#intellisense">Editing</a></h4> <ul> <li>Context-aware auto-completion, incl. node names</li> <li>Signature help and hover help</li> <li>Snippets, incl. new stylesheets for 3.0 and 4.0</li> <li>Formatting of instructions and multi-line XPath</li> <li>Rename symbol, across imported modules</li> <li>Semantic highlighting from a full XPath parser</li> </ul> </td> <td width="50%" valign="top"> <h4><a href="https://deltaxml.github.io/vscode-xslt-xpath/xslt40-notes.html">Code documentation</a></h4> <ul> <li><code>xsl:note</code> with Markdown and xqDoc-style tags</li> <li>Shown in hover and signature help</li> <li><code>@see</code> references, with navigation and rename</li> <li>Checks of <code>@param</code> and <code>@field</code> tags</li> <li>Module notes for stylesheets</li> <li>Highlighting and auto completion for tags or references</li> </ul> </td> </tr> <tr> <td width="50%" valign="top"> <h4><a href="https://deltaxml.github.io/vscode-xslt-xpath/editing-xslt.html#checking">Linter</a></h4> <ul> <li>XPath syntax and XSLT instructions</li> <li>Types, records, enums and function arguments</li> <li>Unused XSLT and XPath variables or parameters</li> <li>References across imported modules</li> <li>Saxon errors from runs, in the Problems panel</li> <li>Quick fixes for common problems</li> </ul> </td> <td width="50%" valign="top"> <h4><a href="https://deltaxml.github.io/vscode-xslt-xpath/navigation.html">Navigation</a></h4> <ul> <li>Go to (or peek) definition, and find references</li> <li>Go to the declarations of record fields</li> <li>Outline, breadcrumbs and Go to Symbol</li> <li>Links for <code>xsl:import</code> and <code>xsl:include</code></li> <li>XSLT Imports view, with inferred top-level stylesheets</li> <li>Filterable dropdown listing all symbols and modes</li> </ul> </td> </tr> <tr> <td width="50%" valign="top"> <h4><a href="https://deltaxml.github.io/vscode-xslt-xpath/refactoring-xslt.html">Refactoring</a></h4> <ul> <li>Context-aware with safe symbol renaming</li> <li>Extract <code>xsl:function</code> or <code>xsl:template</code></li> <li>Extract <code>xsl:variable</code> from an XPath expression</li> <li>Extract a record type from a map</li> <li><strong>Wrap with...</strong> an instruction (<code>⌥⇧W</code> / <code>Alt+Shift+W</code>)</li> <li>Add a documentation note</li> </ul> </td> <td width="50%" valign="top"> <h4><a href="https://deltaxml.github.io/vscode-xslt-xpath/quick-run.html">Running XSLT</a></h4> <ul> <li><strong>Quick Run</strong> (<code>⌘⌥R</code> / <code>Ctrl+Alt+R</code>)</li> <li>Tasks for SaxonJ, SaxonJS and SaxonC</li> <li><code>xsl:param</code> defaults pre-filled by Quick Run</li> <li><code>xsl:param</code> values controlled by tasks</li> <li>XML catalogs for <code>xsl:import</code> URIs</li> <li>File pickers for task inputs</li> </ul> </td> </tr> <tr> <td width="50%" valign="top"> <h4><a href="https://deltaxml.github.io/vscode-xslt-xpath/code-diagnostics.html">Debugging &amp; tools</a></h4> <ul> <li><code>xsl:message</code> for all in-scope variables</li> <li>Formatted, colored output with <code>xdm:debug()</code></li> <li>Companion <a href="https://marketplace.visualstudio.com/items?itemName=deltaxml.xpath-notebook">XPath Notebook</a> extension</li> <li>Test XPath against the current XML file</li> <li>The full <a href="https://deltaxml.github.io/vscode-xslt-xpath/">User Guide</a></li> </ul> </td> <td width="50%" valign="top"> <h4><a…