Grasping at Formatting Straws

Out-HtmlTable.ps1

function Out-HtmlTable {
    [CmdletBinding()]
    param(
        [Parameter(ValueFromPipeline)]
        $InputObject
    )

    begin {
        $Buffer = [System.Collections.ArrayList]::new()
        if($InputObject) {
            $Buffer.Add($InputObject)
        }
    }
    process {
        $null = $Buffer.Add($InputObject)
    }

    end {
        $html = $(
            foreach($item in $Buffer | Format-Table) {
                switch -regex ($item.PSTypeNames) {
                    "GroupStartData" {
                        $GroupName, $GroupValue = $item.groupingEntry.formatValueList.formatValueList.formatValueList.formatValueList | % {
                            if($_.text) { $_.text}
                            if($_.propertyValue){ $_.propertyValue }
                        }
                    }

                    "FormatStartData" {
                        $labels = $item.shapeInfo.tableColumnInfoList.label
                    }

                    "FormatEntryData" {
                        $values = $item.formatEntryInfo.formatPropertyFieldList.propertyValue

                        $ht = @{}
                        # $ht.PSTypeName = $Buffer[$xx].PSTypeNames[0]
                        for($i = 0; $i -lt $labels.Count; $i++) {
                            $ht.($labels[$i]) = $values[$i]
                        }
                        # write-verbose -verbose ($pv.PSTypeNames -join "|")
                        [PSCustomObject]$ht
                    }
                }
            }
        ) | Microsoft.PowerShell.Utility\ConvertTo-Html -As Table -Fragment -Property $labels
        $html = $html -replace "^<table>","<table class='table table-striped'>"

        "<link href='https://cdn.datatables.net/1.10.11/css/jquery.dataTables.min.css' rel='stylesheet' />" + $html + @'
        <script src="https://cdn.datatables.net/1.10.11/js/jquery.dataTables.min.js"></script>
        <script>
            $(document).ready(function(){
                $('table.table').DataTable();
            });
        </script>
'@
    }
}