From ab5cf741850fdd05a68212842341096a5f562a1c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Teemu=20P=C3=A4tsi?= <frendsick@gmail.com>
Date: Sat, 24 May 2025 21:17:20 +0300
Subject: [PATCH] expr: Simplify parsing special cases for `$` in regex

---
 src/uu/expr/src/syntax_tree.rs | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/src/uu/expr/src/syntax_tree.rs b/src/uu/expr/src/syntax_tree.rs
index 544b3b773..b0326f7b6 100644
--- a/src/uu/expr/src/syntax_tree.rs
+++ b/src/uu/expr/src/syntax_tree.rs
@@ -185,14 +185,8 @@ impl StringOp {
                             | ('\\', false) => re_string.push(curr),
                             _ => re_string.push_str(r"\^"),
                         },
-                        '$' => {
-                            if is_end_of_expression(&pattern_chars) {
-                                re_string.push(curr);
-                            } else if !curr_is_escaped {
-                                re_string.push_str(r"\$");
-                            } else {
-                                re_string.push(curr);
-                            }
+                        '$' if !curr_is_escaped && !is_end_of_expression(&pattern_chars) => {
+                            re_string.push_str(r"\$");
                         }
                         '\\' if !curr_is_escaped && pattern_chars.peek().is_none() => {
                             return Err(ExprError::TrailingBackslash);