SemVerHelper.parse doesn't handle prerelease segments that begin with a digit.

[baronfel]

Description

The SemVerHelper.parse method returns a None prerelease when given a SemVer string like "0.0.12-012345678". This fails according to the spec, quoted here:

A pre-release version MAY be denoted by appending a hyphen and a series of dot separated identifiers immediately following the patch version. Identifiers MUST comprise only ASCII alphanumerics and hyphen [0-9A-Za-z-]. Identifiers MUST NOT be empty. Numeric identifiers MUST NOT include leading zeroes. Pre-release versions have a lower precedence than the associated normal version. A pre-release version indicates that the version is unstable and might not satisfy the intended compatibility requirements as denoted by its associated normal version. Examples: 1.0.0-alpha, 1.0.0-alpha.1, 1.0.0-0.3.7, 1.0.0-x.7.z.92.

Repro steps

Please provide the steps required to reproduce the problem

1. Fake.SemVerHelper.parse "0.0.12-01234578" |> fun i -> i.Prerelease.IsNone <> true

Expected behavior

The prerelease segment is parsed as Some { Origin = "012345678"; Name = ""; Number = Some "012345678" }.

Actual behavior

The prerelease segment is parsed as None

Known workarounds

None

[mynkow]

Can this be fixed asap please.