From 55d47f6d90dadf1c54ced19d547b1a7a11cb2b30 Mon Sep 17 00:00:00 2001
From: pagedmov <kylerclay@proton.me>
Date: Mon, 23 Feb 2026 21:16:29 -0500
Subject: [PATCH] Added more accurate logic for @ expansion

---
 src/expand.rs |  7 ++++++-
 src/state.rs  | 12 +++---------
 2 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/src/expand.rs b/src/expand.rs
index 1eb14a8..29e9642 100644
--- a/src/expand.rs
+++ b/src/expand.rs
@@ -37,6 +37,8 @@ pub const PROC_SUB_OUT: char = '\u{fdd6}';
 /// which breaks some commands
 pub const NULL_EXPAND: char = '\u{fdd7}';
 
+pub const ARG_SEP: char = '\u{fdd8}';
+
 impl Tk {
   /// Create a new expanded token
   pub fn expand(self) -> ShResult<Self> {
@@ -104,6 +106,9 @@ impl Expander {
         DUB_QUOTE | SNG_QUOTE | SUBSH => {
           while let Some(q_ch) = chars.next() {
             match q_ch {
+							ARG_SEP if ch == DUB_QUOTE => {
+								words.push(mem::take(&mut cur_word));
+							}
               _ if q_ch == ch => {
                 was_quoted = true;
                 continue 'outer; // Isn't rust cool
@@ -112,7 +117,7 @@ impl Expander {
             }
           }
         }
-        _ if is_field_sep(ch) => {
+        _ if is_field_sep(ch) || ch == ARG_SEP => {
           if cur_word.is_empty() && !was_quoted {
             cur_word.clear();
           } else {
diff --git a/src/state.rs b/src/state.rs
index 27e7bc1..8784a35 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -10,16 +10,10 @@ use std::{
 use nix::unistd::{User, gethostname, getppid};
 
 use crate::{
-  builtin::trap::TrapTarget,
-  exec_input,
-  jobs::JobTab,
-  libsh::{
+  builtin::trap::TrapTarget, exec_input, expand::ARG_SEP, jobs::JobTab, libsh::{
     error::{ShErr, ShErrKind, ShResult},
     utils::VecDequeExt,
-  },
-  parse::{ConjunctNode, NdRule, Node, ParsedSrc},
-  prelude::*,
-  shopt::ShOpts,
+  }, parse::{ConjunctNode, NdRule, Node, ParsedSrc}, prelude::*, shopt::ShOpts
 };
 
 pub struct Fern {
@@ -603,7 +597,7 @@ impl VarTab {
   fn update_arg_params(&mut self) {
     self.set_param(
       ShellParam::AllArgs,
-      &self.sh_argv.clone().to_vec()[1..].join(" "),
+      &self.sh_argv.clone().to_vec()[1..].join(&ARG_SEP.to_string()),
     );
     self.set_param(ShellParam::ArgCount, &(self.sh_argv.len() - 1).to_string());
   }