Bibliotek

A Swift and Objective-C library for communicating with library databases using the Z39.50 protocol, powered by YAZ.

Usage Example

import Bibliotek

Connect to the Library of Congress's VOYAGER database.

let connection = try! Connection(host: "z3950.loc.gov", port: 7090, database: "VOYAGER")

Create a request to find books with some ISBN number.

let request = FetchRequest(keywords: ["9780385527880"], scope: .isbn)

Submit the request to a connection to receive results.

let records = try! connection.fetchRecords(request: request)

With a record, you can access information about the title, author, subject, and more.

extension FieldPath {
    static let isbn13 = FieldPath(tag: "020", code: "a")
    static let locCallNumber = FieldPath(tag: "050")
    static let dccNumber = FieldPath(tag: "082", code: "a")
    static let titleStatement = FieldPath(tag: "245")
}

record.content(with: .isbn13)
record.content(with: .locCallNumber)
record.content(with: .dccNumber)
record.content(with: .titleStatement)

Instructions

Clone the repository and all its submodules to your local machine.

    git clone https://github.com/stevebrun/Bibliotek.git

Xcode will download and build the YAZ source code as needed when building the libyaz target. The Bibliotek target depends on libyaz, so this will happen automatically when building Bibliotek.

References

Z39.50 Endpoints

• zbrary Directory of Z39.50 and SRU Targets
• Gateway to Library Catalogs
• Library of Congress Z39.50 Server Configuration Guidelines

Official Specifications from the Library of Congress

• The bib-1 Attribute Set
• MARC 21 Format for Bibliographic Data
  • 020 ISBN
  • 050 Library of Congress Classification
  • 082 Dewey Decimal Classification
  • 245 Title Statement
  • 520 Summary
  • 765 Synthesized Number Components
• MARCXML Schema
  • Single Record Example
• Marc 21 Character Sets
• International Standard Bibliographic Description
• Z39.50 Protocol Specification

OCLC Documents

• Segmentation Marks in Dewey Numbers
• Bibliographic Formats and Standards
• Z39.50 Configuration Guide for OCLC Z39.50 Cataloging
• Library of Congress Call Number Format

Cataloger's Reference Shelf

• Cutter Numbers
• MARC Format Documentation and Code Lists

YAZ Documentation from IndexData

• Z39.50 Object-Orientation Model (ZOOM)

• Queries with BIB-1 Attributes

• PQF Query Format

  • PQF Query Examples

• ZOOM Records

• YAZ ZOOM Timeout Option

• YAZ ZOOM Timeout Option Semantics

Other Specifications

• MARC in JSON Description
• JSON Schema for the MARC 21 Bibliographic Standard
• A proposal to serialize MARC in JSON

Other Sources

• Torroidal Code's isbn2.py
• kurtraschke's parsecallno.py
• Wikidata page on Library of Congress Classification
• 025.431: The Dewey Blog
• Documentation for the ZOOM Pearl extension
• Dewey Segmentation (the '/' in the dewey number)
• The ``Hello World'' Zoo
• A Comprehensive Approach to Algorithmic Machine Sorting of Library of Congress Call Numbers