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...

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 to...

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)