# Part IV. Miscellaneous Utilities

Table of Contents

Available for clients and backends
  Main Utility Toolbox
  ECategories
  ECollator — Collation services for locale sensitive sorting
  Debug logging
  EFlag
  EMemChunk
  EOperationPool
  ESExp
  Time parsing and formatting
  Unique identifiers
  EXmlHash
  Version Checking
Available only for backends
  EFileCache — Simple file-based hash table for strings
  Berkeley DB utilities — Utilities for Berkeley DB databases
  ESoupAuthBearer — OAuth 2.0 support for libsoup
  SQLite vfs
  EUserPrompter — Manages user prompts over DBus
  EUserPrompterServer — Server-side user prompter
  EUserPrompterServerExtension — Extension for a server-side user prompter
Addressbook related utilities
  Addressbook related types
  EDestination
  EAddressWestern
  ENameWestern
  EPhoneNumber — Phone number support
Calendar related utilities
  Calendar recurrences
  Calendar time utilities
  Calendar utilities
  Calendar system timezone
  Calendar timezones
  ETimezoneCache — An interface for caching time zone data
  Calendar Backend Utilities

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