xslt 1.4.4
See the version list below for details.
dotnet tool install --global xslt --version 1.4.4
dotnet new tool-manifest
dotnet tool install --local xslt --version 1.4.4
#tool dotnet:?package=xslt&version=1.4.4
nuke :add-package xslt --version 1.4.4
xslt
Command-line XSLT 3.0/4.0 processor for .NET. Transform XML documents from the terminal using the PhoenixmlDb XSLT engine.
Installation
dotnet tool install -g xslt
Usage
# Transform XML with a stylesheet
xslt stylesheet.xsl input.xml
# Write output to a file
xslt -o result.html report.xsl data.xml
# Start from a named template (no source needed)
xslt -it main generate.xsl
# Pass parameters
xslt -p year=2026 -p title="Report" style.xsl data.xml
# Read source from stdin
cat data.xml | xslt transform.xsl
# Show timing breakdown
xslt --timing style.xsl large-input.xml
# Validate a stylesheet without running
xslt --dry-run style.xsl
# Stream large files (lower memory)
xslt --stream style.xsl large-input.xml
Features
- XSLT 3.0/4.0 — packages, streaming, maps/arrays, higher-order functions, JSON output
- Multiple output methods — XML, HTML, XHTML, text, JSON, adaptive
- Streaming — process large files without loading into memory
- xsl:result-document — generate multiple output files in one transform
- Parameters — pass values from the command line
- Timing — built-in performance profiling
- Tracing — log template matching, function calls, and built-in rules
Documentation
Full documentation at phoenixml.dev
License
Apache-2.0
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
This package has no dependencies.
| Version | Downloads | Last Updated |
|---|---|---|
| 1.4.25 | 52 | 7/17/2026 |
| 1.4.24 | 55 | 7/14/2026 |
| 1.4.23 | 72 | 7/12/2026 |
| 1.4.22 | 71 | 7/10/2026 |
| 1.4.21 | 65 | 7/9/2026 |
| 1.4.20 | 52 | 7/9/2026 |
| 1.4.19 | 62 | 7/9/2026 |
| 1.4.18 | 55 | 7/8/2026 |
| 1.4.17 | 60 | 7/7/2026 |
| 1.4.16 | 70 | 6/30/2026 |
| 1.4.15 | 68 | 6/25/2026 |
| 1.4.14 | 77 | 6/22/2026 |
| 1.4.13 | 67 | 6/21/2026 |
| 1.4.12 | 76 | 6/19/2026 |
| 1.4.11 | 77 | 6/18/2026 |
| 1.4.10 | 82 | 6/17/2026 |
| 1.4.9 | 76 | 6/17/2026 |
| 1.4.8 | 90 | 6/16/2026 |
| 1.4.7 | 87 | 6/15/2026 |
| 1.4.4 | 76 | 6/9/2026 |
Streaming allocation overhaul. The 1M-item streaming-identity bench dropped from 3328.6 MiB to 368.4 MiB allocated (-88.9%) and from 4921 ms to 3412 ms (-30.7%); peak RSS stays at 16 MiB. Profile-driven series of pool / cache / laziness wins.
Highlights: cache the seven CreateMatchContext delegates and pool the XsltContext itself via a `using var lease = AcquireMatchContext()` pattern (17 call sites migrated); pool XdmElement, XdmAttribute, StreamingNodeContext, Scope, and the per-element NodeId / XdmAttribute / StreamingNodeContext lists; lazy-init Scope.Variables / TunnelParameters and per-element attrs / nsDecls; replace the XdmInMemoryStore.GetAttributes yield-iterator with an allocation-free struct enumerator on hot paths.
Pool reuse is safe under XSLT 3.0 streaming mode — streamable templates may not retain non-grounded node refs across element boundaries. Non-streaming paths are unchanged.
463/463 XSLT tests green; no behavior changes. See RELEASES.md for full notes.