xquery4 2.5.1

xquery

Command-line XQuery 3.1/4.0 processor for .NET. Query XML documents from the terminal using the PhoenixmlDb XQuery engine.

Installation

dotnet tool install -g xquery4

Usage

# Query an XML file
xquery '//book/title' library.xml

# Count elements
xquery 'count(//item)' catalog.xml

# Read from a query file
xquery -f transform.xq input.xml

# Query a directory of XML files
xquery 'collection()//product[price > 50]' ./data/

# JSON output
xquery -o json 'map { "count": count(//item) }' data.xml

# Read from stdin
cat data.xml | xquery '//item/@name'

# Show execution plan
xquery --plan 'for $x in 1 to 10 return $x * $x'

# Show timing breakdown
xquery --timing '//item' large-catalog.xml

Features

• XQuery 3.1/4.0 — FLWOR, maps/arrays, higher-order functions, string constructors
• Multiple output methods — adaptive, XML, text, JSON
• Context item — input XML is available as . (standard XQuery)
• Multiple sources — files, directories, URLs, stdin
• Full prolog support — namespaces, variable/function declarations, serialization options
• Execution plans — inspect how queries are compiled and optimized
• Timing — built-in performance profiling

Documentation

Full documentation at phoenixml.dev

License

Apache-2.0