functions/test-d365labelidisvalid.ps1
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<# .SYNOPSIS Checks if a string is a valid 'Label Id' format .DESCRIPTION This function will validate if a string is a valid 'Label Id' format. .PARAMETER LabelId The LabelId string thay you want to validate .EXAMPLE PS C:> Test-D365LabelIdIsValid -LabelId "ABC123" This will test the if the LabelId is valid. It will use the "ABC123" as the LabelId parameter. The expected result is $true .EXAMPLE PS C:> Test-D365LabelIdIsValid -LabelId "@ABC123" This will test the if the LabelId is valid. It will use the "@ABC123" as the LabelId parameter. The expected result is $true .EXAMPLE PS C:> Test-D365LabelIdIsValid -LabelId "@ABC123_1" This will test the if the LabelId is valid. It will use the "@ABC123_1" as the LabelId parameter. The expected result is $false .EXAMPLE PS C:> Test-D365LabelIdIsValid -LabelId "ABC.123" #False This will test the if the LabelId is valid. It will use the "ABC.123" as the LabelId parameter. The expected result is $false .NOTES Author: Alex Kwitny (@AlexOnDAX) The intent of this function is to be used with other methods to create valid labels via scripting. #> function Test-D365LabelIdIsValid { [CmdletBinding()] [OutputType([bool])] param ( [Parameter(Mandatory = $True)] [string] $LabelId ) $RegexOptions = [System.Text.RegularExpressions.RegexOptions]::IgnoreCase -bor [System.Text.RegularExpressions.RegexOptions]::Compiled -bor [System.Text.RegularExpressions.RegexOptions]::CultureInvariant $Matcher_New_LabelID = New-Object System.Text.RegularExpressions.Regex('(^[a-zA-Z_])([a-zA-Z\d_])*$', $RegexOptions) $Matcher_Legacy_LabelID = New-Object System.Text.RegularExpressions.Regex([System.String]::Format([System.IFormatProvider][System.Globalization.CultureInfo]::InvariantCulture, "^{0}{1}{2}$", [System.Object]'@', [System.Object]"[a-zA-Z]\w\w", [System.Object]"\d+"), $RegexOptions) $Matcher_New_Label_WithLabelFile = New-Object System.Text.RegularExpressions.Regex("(?<AtSign>\@)(?<LabelFileId>[a-zA-Z]\w*):(?<LabelId>[a-zA-Z]\w*)", $RegexOptions) if (!$LabelId) { $false return } if (!($Matcher_New_LabelID.IsMatch($LabelId)) -and !($Matcher_Legacy_LabelID.IsMatch($LabelId))) { $Matcher_New_Label_WithLabelFile.IsMatch($LabelId) return } $true } |