| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Distribution.Types.Version
Contents
Synopsis
- data Version
- mkVersion :: [Int] -> Version
- mkVersion' :: Version -> Version
- versionNumbers :: Version -> [Int]
- nullVersion :: Version
- alterVersion :: ([Int] -> [Int]) -> Version -> Version
- version0 :: Version
- validVersion :: Version -> Bool
- versionDigitParser :: CabalParsing m => m Int
Package versions
A Version represents the version of a software entity.
Instances of Eq and Ord are provided, which gives exact
equality and lexicographic ordering of the version number
components (i.e. 2.1 > 2.0, 1.2.3 > 1.2.2, etc.).
This type is opaque and distinct from the Version type in
Data.Version since Cabal-2.0. The difference extends to the
Binary instance using a different (and more compact) encoding.
Since: Cabal-syntax-2.0.0.2
Instances
mkVersion :: [Int] -> Version Source #
Construct Version from list of version number components.
For instance, mkVersion [3,2,1] constructs a Version
representing the version 3.2.1.
All version components must be non-negative. mkVersion []
currently represents the special null version; see also nullVersion.
Since: Cabal-syntax-2.0.0.2
mkVersion' :: Version -> Version Source #
Variant of mkVersion which converts a Data.Version
Version into Cabal's Version type.
Since: Cabal-syntax-2.0.0.2
versionNumbers :: Version -> [Int] Source #
nullVersion :: Version Source #
Constant representing the special null Version
The nullVersion compares (via Ord) as less than every proper
Version value.
Since: Cabal-syntax-2.0.0.2
alterVersion :: ([Int] -> [Int]) -> Version -> Version Source #
Apply function to list of version number components
alterVersion f == mkVersion . f . versionNumbers
Since: Cabal-syntax-2.0.0.2
Internal
validVersion :: Version -> Bool Source #
versionDigitParser :: CabalParsing m => m Int Source #
An integral without leading zeroes.
Since: Cabal-syntax-3.0