PowerShell function to parse version numbers with regex

parse-version.ps1

function Get-Version-Number ([String]$versionText) {
  # matches 1.2 or 1.2.3
  $pattern = "(\d+)\.?(\d+)\.?((\d+)\.?)?"
  $parts = [regex]::Matches($versionText, $pattern)
  
  [hashtable]$version = @{}
  if ($parts.Groups.Length -gt 0) {
    $version.Major = [int]$parts.Groups[1].value
    $version.Minor = [int]$parts.Groups[2].value
    if ($parts.Groups.Length -gt 3) {
      $version.Revision = [int]$parts.Groups[3].value
    }
  }
  return $version
}

Get-Version-Number("foo 1.2 bar")
Get-Version-Number("foo 1.2.3 bar")