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.

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

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

XMI data model parser

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