Library

The PubID Ruby gem provides parsing, rendering, and URN generation for all supported publisher schemes.

pubid-rubyv2.0.0·rt-new-lutaml-model·2026-05-04

This documentation reflects the identifier schemes exported from the pubid-ruby gem linked above.

Installation

Add to your Gemfile:

gem 'pubid'

Or install directly:

gem install pubid

Features

• Parse any supported identifier into structured components
• Render components back to a canonical string
• Generate URNs for machine interchange
• Serialize to JSON, YAML, or Hash
• Validate identifier syntax
• 26+ publisher schemes supported out of the box

Quick Example

require 'pubid'

# Parse
id = Pubid::Iso.parse("ISO 9001:2015")

# Access components
id.publisher    # => "ISO"
id.number       # => "9001"
id.year         # => 2015

# Render
id.to_s         # => "ISO 9001:2015"

# URN
id.to_urn       # => "urn:iso:std:iso:9001:ed-5:en"

# Serialize
id.to_h         # => { publisher: "ISO", number: "9001", ... }
id.to_json      # => JSON representation

Per-Flavor Parsing

# ISO
Pubid::Iso.parse("ISO/IEC 17031-1:2020/Amd 1:2022")

# IEC
Pubid::Iec.parse("IEC 61131-3:2013/AMD1:2019")

# IEEE
Pubid::Ieee.parse("IEEE Std 802.3-2018")

# NIST
Pubid::Nist.parse("NIST SP 800-53 Rev. 5")

# BSI
Pubid::Bsi.parse("BS ISO 9001:2015")

# CEN-CENELEC
Pubid::CenCenelec.parse("EN 196-3:2005+A1:2008")

# And 17+ more publishers...

Architecture

The library uses a layered architecture:

1. Pre-parser — Normalizes legacy/malformed identifiers via update_codes.yaml
2. Parser — PEG grammar (Parslet) produces a parse tree
3. Builder — Converts parse tree to an identifier object
4. Identifier — Lutaml::Model object with to_s, to_urn, to_h

Next Steps

• Quick Start Guide
• API Reference
• Contributing