Ruby gem providing the SmartSDU Core Ontology information model. Includes Entity, Provision, TermEntry, PublicationDocument, SKOS taxonomy instances, and RDF namespace modules. Built on lutaml-model with Turtle and JSON-LD serialization support.

A benchmarking suite for comparing performance of various serialization libraries in Ruby, including XML, JSON, and TOML parsers/generators.

Sirena is a pure Ruby implementation of Mermaid diagram rendering. It parses Mermaid syntax and generates SVG output using Parslet grammars and ELK layout. Supports 24 diagram types: flowcharts, sequence, class, state, ER, C4, block, architecture, Gantt, timeline, Git graph, mindmap, Kanban, user journey, pie, quadrant, radar, XY charts, requirement, Sankey, packet, treemap, info, and error displays.

Library to work with NISO STS and ISOSTS.

Utility for SUMA (STEP Unified Model-Based Standards Architecture)

SVG profile conformance checker for Ruby.

Parse, manipulate, and serialize TBX documents using the ISO 30042:2019 standard.

Parser for the TERMIUM Plus terminology database of the Government of Canada

ucode turns the Unicode Character Database (UCD) text files and the official Unicode Code Charts into a structured, browsable dataset. For every assigned codepoint it produces a JSON document with full UCD properties, the human-curated relationships from NamesList.txt, Unihan readings, and machine-computed references; an SVG of the official glyph vector-extracted from the Code Charts; and a Vitepress site for browsing Plane, Block, and Character.

Ukiryu is a platform-adaptive command execution framework that transforms CLI tools into declarative APIs. It provides the "OpenAPI" for command-line interfaces, enabling cross-platform tool integration with type safety and structured results. Key features: * Declarative YAML profiles define tool behavior, eliminating hardcoded command strings * Platform-adaptive execution across macOS, Linux, and Windows * Shell-aware command formatting for bash, zsh, fish, PowerShell, and cmd * Type-safe parameter validation with automatic coercion * Version routing support with semantic version matching (via Versionian) * Interface contracts allow multiple tools to implement the same abstract API * Structured Result objects with success/failure information instead of parsing stdout * Comprehensive error handling under Ukiryu::Errors namespace The Ukiryu ecosystem consists of: * ukiryu gem - The runtime framework * ukiryu/register - Collection of YAML tool profiles * ukiryu/schemas - JSON Schema for validation Use Ukiryu to integrate command-line tools like ImageMagick, FFmpeg, Inkscape, Ghostscript, and more into your Ruby applications with consistent, predictable interfaces.

A pure Ruby gem for parsing Protocol Buffers text format (textproto/txtpb) and FlatBuffers schema definitions with rich domain models

Library to handle UnitsDB content.

Library to work with UnitsML in Ruby

Comprehensive Ruby library for creating and manipulating Microsoft Word documents in DOCX and MHTML formats. Features include full formatting support, tables, lists, images, headers/footers, styles, and bidirectional format conversion.

Vendored, offline access to the UN/LOCODE (United Nations Code for Trade and Transport Locations) dataset published by UNECE/UNCEFACT. Provides a model-driven Ruby registry for looking up LOCODE entries by code, country, function, status, name, and other classifiers.

A Ruby wrapper for the W3C web API with a CLI interface

XMI data model parser

Generate comprehensive XSD documentation with SVG diagrams (via xsdvi gem) and HTML reference (XS3P port)