Modulesemver-0.4.0.1Haskell2010

Data.SemVer.Constraint

An implementation of the Semantic Versioning Constraints. In absence of a standard around constraints, the behavior of node-semver is closely followed. The behavior is outlined here: https://github.com/npm/node-semver#ranges

1 type
2 values

Packagesemver-0.4.0.1
Exports3
LanguageHaskell2010
LicenceMPL-2.0
SourceConstraint.hs

datadata Constraint

Constructors

CAny
CLt !Version
CLtEq !Version
CGt !Version
CGtEq !Version
CEq !Version
CAnd !Constraint !Constraint
COr !Constraint !Constraint

Instances2Eq, Show

Eq ConstraintDefined in semver-0.4.0.1 · Data.SemVer.Constraint
Show ConstraintDefined in semver-0.4.0.1 · Data.SemVer.Constraint

valuesatisfies :: Version -> Constraint -> Bool

Checks whether the Version satisfies the Constraint

Note: Semantics of this are strange in the presence of pre-release identifiers. Without a proper standard for how constraint satisfaction should behave, this implementation attempts to follow the behavior of node-semver which can be found here: https://github.com/npm/node-semver#prerelease-tags.

This choice was made because node-semver is the most widely deployed implementation of semantic versioning with the best documentation around how to treat pre-release identifiers.

The summary is that you must opt into using pre-release identifiers by specifying them in the constraint and they must match the exact version that attempts to use a pre-release identifier.

valuefromText :: Text -> Either String Constraint

Parsing function to create a Constraint from Text according to the rules specified here: https://github.com/npm/node-semver#ranges

Advanced syntax is not yet supported.