pattern-rs

What is pattern-rs? ​

pattern-rs provides the Pattern<V> data structure — a value paired with an ordered list of elements, each itself a Pattern<V>. This is the decorated sequence model: elements form the pattern concept; the value decorates it. An atomic pattern has no elements.

The library is a Rust implementation of the gram-hs reference, with full bindings for Python (via PyO3) and TypeScript (via WebAssembly). All three languages expose equivalent operations with language-idiomatic naming.

Gram notation is the human-readable serialisation format for patterns. The general form ["decoration" | element, element, ...] represents any pattern; the shorthand forms (node) and (a)-[:rel]->(b) cover common graph element shapes.

Features ​

• Guides — Task-oriented answers to "how do I…" questions in Rust, Python, and TypeScript
• Explanations — Conceptual answers explaining what Pattern is and how it works
• Reference — Full API documentation for all three language targets