jh_PSModule

1.0.0

Private/Test-UTF8NoBOM.ps1

                                function Test-UTF8NoBOM {

    [CmdletBinding()]

    param(

        [Parameter(Mandatory)]

        [string]$Path

    )

    # Read first three bytes safely

    $bytes = Get-Content -Path $Path -Encoding Byte -TotalCount 3

    # If file is shorter than 3 bytes, it cannot contain a UTF-8 BOM

    if ($bytes.Count -lt 3) {

        return $true

    }

    # Check for UTF-8 BOM (EF BB BF)

    $hasBom = ($bytes[0] -eq 0xEF -and

               $bytes[1] -eq 0xBB -and

               $bytes[2] -eq 0xBF)

    return -not $hasBom

}