Fix open::with() on Windows. (#80)

src/main.rs

@@ -9,11 +9,21 @@ fn main() {
         }
     };
 
+    #[cfg(not(windows))]
     let result = match std::env::var("OPEN_WITH").ok() {
         Some(program) => open::with(&path_or_url, program),
         None => open::that(&path_or_url),
     };
 
+    #[cfg(windows)]
+    let result = match env::args().nth(2) {
+        Some(arg) if arg == "--with" || arg == "-w" => match env::args().nth(3) {
+            Some(program) => open::with(&path_or_url, program),
+            None => open::that(&path_or_url),
+        },
+        _ => open::that(&path_or_url),
+    };
+
     match result {
         Ok(()) => println!("Opened '{}' successfully.", path_or_url),
         Err(err) => {

src/windows.rs

@@ -20,6 +20,8 @@ pub fn commands<T: AsRef<OsStr>>(path: T) -> Vec<Command> {
 pub fn with_command<T: AsRef<OsStr>>(path: T, app: impl Into<String>) -> Command {
     let mut cmd = Command::new("cmd");
     cmd.arg("/c")
+        .arg("start")
+        .raw_arg("\"\"")
         .raw_arg(app.into())
         .raw_arg(wrap_in_quotes(path))
         .creation_flags(CREATE_NO_WINDOW);