prototype something something

protocolhandler-clipboard.ps1

function Add-ClipboardProtocolHandler {
    # clipboard://
    $custom = Get-Command "$env:temp\customclip.exe" -CommandType Application -ErrorAction 'Stop'
    $uri = 'clipboard'
    if (!(Test-Path "HKCU:\Software\Classes\$uri")) {
        New-Item "HKCU:\Software\Classes\$uri"
    }
    Set-ItemProperty "HKCU:\Software\Classes\$uri" '(Default)' "URL:$uri Protocol"
    Set-ItemProperty "HKCU:\Software\Classes\$uri" 'URL Protocol' ''
    if (!(Test-Path "HKCU:\Software\Classes\$uri\shell")) {
        New-Item "HKCU:\Software\Classes\$uri\shell"
    }
    if (!(Test-Path "HKCU:\Software\Classes\$uri\shell\open")) {
        New-Item "HKCU:\Software\Classes\$uri\shell\open"
    }
    if (!(Test-Path "HKCU:\Software\Classes\$uri\shell\open\command")) {
        New-Item "HKCU:\Software\Classes\$uri\shell\open\command"
    }
    Set-ItemProperty "HKCU:\Software\Classes\$uri\shell\open\command" '(Default)' "$($custom.Path) %1"
}
Add-ClipboardProtocolHandler
function writeclip {
    param(
        [Parameter(Mandatory,Position = 0)]
        [String]$Link,
        [Parameter(Mandatory,Position = 1)]
        [string]$String
    )
    return "`e]8;;clipboard://{0}/`e\{1}`e]8;;`e\" -f $String, $Link
}
writeclip -Link "click me" -String "test 12345 spaces"

# requires windows powershell to compile binary file
throw 'this part needs to be run from windows powershell'
$c = @'
using System;
using System.Windows.Forms;

class Program
{
    [STAThread]
    static void Main(string[] args)
    {
        if (args.Length > 0)
        {
            string text = string.Join(" ", args);
            string prefix = "clipboard://";
            if (text.StartsWith(prefix))
            {
                text = text.Substring(prefix.Length);
            }
            if (text.EndsWith("/"))
            {
                text = text.Substring(0, text.Length - 1);
            }
            Clipboard.SetText(text);
        }
    }
}
'@
Add-Type -TypeDefinition $c -ReferencedAssemblies System.Windows.Forms -OutputAssembly "$env:temp\customclip.exe"