fix: update powershell bindings to have better UI

Signed-off-by: cpendery <cpendery@vt.edu>

shell/key-bindings.ps1

@@ -1,9 +1,40 @@
-Set-PSReadLineKeyHandler -Chord "Ctrl+a" -ScriptBlock {
+Set-PSReadLineKeyHandler -Chord 'Ctrl+a' -ScriptBlock {
+    $command = $null
+    [Microsoft.PowerShell.PSConsoleReadLine]::GetBufferState([ref]$command, [ref]$null)
+
+    $oldPrompt = $function:prompt
+    function prompt {" `n"}
+    [Microsoft.PowerShell.PSConsoleReadLine]::InvokePrompt()
+    $prompt = $oldPrompt
+
     [Microsoft.PowerShell.PSConsoleReadLine]::ClearKillRing()
     [Microsoft.PowerShell.PSConsoleReadLine]::BeginningOfLine()
     [Microsoft.PowerShell.PSConsoleReadLine]::KillLine()
-    [Microsoft.PowerShell.PSConsoleReadLine]::Insert('.\clac.exe "')
-    [Microsoft.PowerShell.PSConsoleReadLine]::Yank()
-    [Microsoft.PowerShell.PSConsoleReadLine]::Insert('" ; .\clac.exe -o | iex')
+
+    if ($command) {
+        Start-Process -NoNewWindow -Wait ".\clac" "$command"
+    } else {
+        Start-Process -NoNewWindow -Wait ".\clac"
+    }
+
+    $pinfo = New-Object System.Diagnostics.ProcessStartInfo
+    $pinfo.FileName = ".\clac"
+    $pinfo.RedirectStandardError = $true
+    $pinfo.RedirectStandardOutput = $true
+    $pinfo.UseShellExecute = $false
+    $pinfo.Arguments = "-o"
+    $p = New-Object System.Diagnostics.Process
+    $p.StartInfo = $pinfo
+    $p.Start() | Out-Null
+    $p.WaitForExit()
+    $stdout = $p.StandardOutput.ReadToEnd()
+
     [Microsoft.PowerShell.PSConsoleReadLine]::AcceptLine()
+
+    $cmd,$args = $stdout -split ' ',2
+    if ($cmd.Trim() -and $args.Trim()) {
+         Start-Process -NoNewWindow -Wait "$cmd" "$args"
+    } elseif ($cmd.Trim()) {
+        Start-Process -NoNewWindow -Wait "$cmd"
+    }
 }