feat: add validatepattern

powershell/get-metadata.ps1

@@ -120,7 +120,9 @@ foreach ($param in $paramBlock.Parameters) {
                 } elseif ($attr.TypeName.Name -eq 'ValidateSet') {
                     $val.values = $attr.PositionalArguments.Value
                 } elseif ($attr.TypeName.Name -eq 'ValidateScript') {
-                    $val.script = $attr.PositionalArguments.ScriptBlock.Extent.Text
+                    $val.value = $attr.PositionalArguments.ScriptBlock.Extent.Text
+                } elseif ($attr.TypeName.Name -eq 'ValidatePattern') {
+                    $val.value = $attr.PositionalArguments.Value
                 }
 
                 $validations += [pscustomobject]$val

powershell/test-script.ps1

@@ -21,6 +21,7 @@
 
         # Accepts pipeline input by value
         [Parameter(ValueFromPipeline = $true, ParameterSetName = 'Set2')]
+        [ValidatePattern("^[a-zA-Z0-9]*$")]
         [string]$InputObject,
 
         # Accepts pipeline input by property name