How remove accents in PowerShell?

As per ip.'s answer, here is the Powershell version.

function Remove-Diacritics {
param ([String]$src = [String]::Empty)
  $normalized = $src.Normalize( [Text.NormalizationForm]::FormD )
  $sb = new-object Text.StringBuilder
  $normalized.ToCharArray() | % { 
    if( [Globalization.CharUnicodeInfo]::GetUnicodeCategory($_) -ne [Globalization.UnicodeCategory]::NonSpacingMark) {
      [void]$sb.Append($_)
    }
  }
  $sb.ToString()
}

# Test data
@("Rhône", "Basíl", "Åbo", "", "Gräsäntörmä") | % { Remove-Diacritics $_ }

Output:

Rhone
Basil
Abo

Grasantorma

Well I can help you with some of the code.....

I used this recently in a c# project to strip from email addresses:

    static string RemoveDiacritics(string input)
    {
        string inputFormD = (input ?? string.Empty).Normalize(NormalizationForm.FormD);
        StringBuilder sb = new StringBuilder();

        for (var i = 0; i < inputFormD.Length; i++)
        {
            UnicodeCategory uc = CharUnicodeInfo.GetUnicodeCategory(inputFormD[i]);
            if (uc != UnicodeCategory.NonSpacingMark)
            {
                sb.Append(inputFormD[i]);
            }
        }

        return (sb.ToString().Normalize(NormalizationForm.FormC));
    }

I guess I can now say 'extending into a PowerShell script/form is left to the reader'.... hope it helps....

Another PowerShell translation of @ip for non C# coders ;o)

function Remove-Diacritics 
{
  param ([String]$sToModify = [String]::Empty)

  foreach ($s in $sToModify) # Param may be a string or a list of strings
  {
    if ($sToModify -eq $null) {return [string]::Empty}

    $sNormalized = $sToModify.Normalize("FormD")

    foreach ($c in [Char[]]$sNormalized)
    {
      $uCategory = [System.Globalization.CharUnicodeInfo]::GetUnicodeCategory($c)
      if ($uCategory -ne "NonSpacingMark") {$res += $c}
    }

    return $res
  }
}

Clear-Host
$name = "Un été de Raphaël"
Write-Host (Remove-Diacritics $name )
$test = ("äâûê", "éèà", "ùçä")
$test | % {Remove-Diacritics $_}
Remove-Diacritics $test