Package dpkg implements a versionfmt.Parser for version numbers used in dpkg based software packages.

Package rpm implements a versionfmt.Parser for version numbers used in rpm based software packages.

Compare is a helper function that will compare two versions with a given format and return an error if there are any failures.

GetParser returns the registered Parser with a provided name.

RegisterParser provides a way to dynamically register an implementation of a Parser.

Valid is a helper function that will return an error if the version fails to validate with a given format.

MaxVersion is a special package version which is always sorted last.

MinVersion is a special package version which is always sorted first.

ErrInvalidVersion is returned when a function needs to validate a version, but should return an error in the case where the version is invalid.

ErrUnknownVersionFormat is returned when a function does not have enough context to determine the format of a version.

Parser represents any format that can compare two version strings.