Switch to shlex to make filenames shellsafe

shlex also takes care of any other POSIX-shell specific stuff, such as ".
Also cleans up the vector extension a bit.

Cargo.lock

@@ -1367,6 +1367,7 @@ dependencies = [
  "rmpv",
  "serde",
  "serde_json",
+ "shlex",
  "skia-safe",
  "swash",
  "tokio",

Cargo.toml

@@ -39,6 +39,7 @@ rand = "0.8.5"
 rmpv = "1.0.0"
 serde = { version = "1.0.136", features = ["derive"] }
 serde_json = "1.0.79"
+shlex = "1.1.0"
 swash = "0.1.4"
 tokio = { version = "1.17.0", features = ["full"] }
 tokio-util = { version = "0.7.1", features = ["compat"] }

src/cmd_line.rs

@@ -172,11 +172,10 @@ pub fn handle_command_line_arguments(args: Vec<String>) -> Result<(), String> {
 
     if cfg!(target_os = "macos") {
         // escape filepath which contain spaces
-        neovim_args.extend::<Vec<String>>(
+        neovim_args.extend(
             files_to_open
                 .iter()
-                .map(|file| file.replace(" ", "\\ "))
+                .map(|file| shlex::quote(file).into_owned()),
-                .collect(),
         );
     } else {
         neovim_args.extend::<Vec<String>>(files_to_open);