Fix crash on Windows 7 systems without PowerShell.

src/Scripts/Lua/.vscode/launch.json

@@ -0,0 +1,14 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "lua",
+            "request": "launch",
+            "name": "launch",
+            "runtimeExecutable": "D:/Software/Development/MSYS2/mingw64/bin/mpv.exe",
+            "runtimeArgs": ["--script=${workspaceFolder}\\delete-current-file.lua", "D:\\Samples\\castele.m2v"],
+            "stopOnEntry": false,
+            "luaVersion": "5.1"
+        }
+    ]
+}

src/Scripts/Lua/delete-current-file.lua

@@ -1,5 +1,13 @@
 
--- This script deletes the file that is currently playing.
+-- Only supported on Windows.
+
+-- This script deletes the file that is currently playing
+-- via keyboard shortcut, the file is moved to the recycle bin.
+
+-- Usage:
+-- Configure input.conf as described below.
+-- Press 0 to initiate the delete operation.
+-- Press 1 to confirm and delete.
 
 -- input.conf:
 
@@ -10,30 +18,30 @@
 --   1 script-binding delete_current_file/confirm
 
 function delete()
-    FileToDelete = mp.get_property("path")
-    DeleteTime = os.time()
+    file_to_delete = mp.get_property("path")
+    delete_time = os.time()
     mp.commandv("show-text", "Press 1 to delete file", "10000")
 end
 
 function confirm()
     local path = mp.get_property("path")
 
-    if FileToDelete == path and (os.time() - DeleteTime) < 10 then
+    if file_to_delete == path and (os.time() - delete_time) < 10 then
         mp.commandv("show-text", "")
 
         local count = mp.get_property_number("playlist-count")
-        local pos = mp.get_property_number("playlist-pos")
-        local newPos = 0
+        local pos   = mp.get_property_number("playlist-pos")
+        local new_pos = 0
 
         if pos == count - 1 then
-            newPos = pos - 1
+            new_pos = pos - 1
         else
-            newPos = pos + 1
+            new_pos = pos + 1
         end
 
-        if newPos > -1 then
+        if new_pos > -1 then
             mp.command("set pause no")
-            mp.set_property_number("playlist-pos", newPos)
+            mp.set_property_number("playlist-pos", new_pos)
         end
 
         mp.command("playlist-remove " .. pos)
@@ -41,13 +49,13 @@ function confirm()
         local ps_code = [[& {
             Start-Sleep -Seconds 2
             Add-Type -AssemblyName Microsoft.VisualBasic
-            [Microsoft.VisualBasic.FileIO.FileSystem]::DeleteFile('FileToDelete', 'OnlyErrorDialogs', 'SendToRecycleBin')
+            [Microsoft.VisualBasic.FileIO.FileSystem]::DeleteFile('file_to_delete', 'OnlyErrorDialogs', 'SendToRecycleBin')
         }]]
 
-        local escapedFileToDelete = string.gsub(FileToDelete, "'", "''")
-        escapedFileToDelete = string.gsub(escapedFileToDelete, "’", "’’")
-        escapedFileToDelete = string.gsub(escapedFileToDelete, "%%", "%%%%")
-        ps_code = string.gsub(ps_code, "FileToDelete", escapedFileToDelete)
+        local escaped_file_to_delete = string.gsub(file_to_delete, "'", "''")
+        escaped_file_to_delete = string.gsub(escaped_file_to_delete, "’", "’’")
+        escaped_file_to_delete = string.gsub(escaped_file_to_delete, "%%", "%%%%")
+        ps_code = string.gsub(ps_code, "file_to_delete", escaped_file_to_delete)
 
         mp.command_native({
             name = "subprocess",