From 29b348b46559523e312e7deaf7a7db24881e0da0 Mon Sep 17 00:00:00 2001
From: Mykhailo Chalyi <mike@chaliy.name>
Date: Thu, 26 Mar 2026 17:13:24 +0000
Subject: [PATCH] fix(awk): treat # inside regex literals as literal, not
 comment

The awk normalizer now recognizes regex literals (/pattern/) in both
pattern and action contexts. Previously, regex was only recognized
inside braces, so /#/ in a pattern position caused # to be treated
as a comment start.

Closes #835
---
 crates/bashkit/src/builtins/awk.rs            |  4 ++--
 .../bashkit/tests/spec_cases/awk/awk.test.sh  | 21 +++++++++++++++++++
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/crates/bashkit/src/builtins/awk.rs b/crates/bashkit/src/builtins/awk.rs
index 8e025595..f3b08678 100644
--- a/crates/bashkit/src/builtins/awk.rs
+++ b/crates/bashkit/src/builtins/awk.rs
@@ -402,8 +402,8 @@ fn normalize_awk_newlines(input: &str) -> String {
                     i += 1;
                 }
             }
-            '/' if brace_depth > 0 => {
-                // Potential regex literal — pass through unchanged
+            '/' => {
+                // Regex literal — pass through unchanged (both pattern and expression context)
                 result.push('/');
                 i += 1;
                 while i < chars.len() && chars[i] != '/' {
diff --git a/crates/bashkit/tests/spec_cases/awk/awk.test.sh b/crates/bashkit/tests/spec_cases/awk/awk.test.sh
index f5a9bca8..b71fe95d 100644
--- a/crates/bashkit/tests/spec_cases/awk/awk.test.sh
+++ b/crates/bashkit/tests/spec_cases/awk/awk.test.sh
@@ -703,3 +703,24 @@ awk 'BEGIN{print "caf\u00E9"}'
 ### expect
 café
 ### end
+
+### awk_regex_hash_pattern
+# Issue #835: # inside regex pattern should not be treated as comment
+echo '#test' | awk '/#/ { print "matched" }'
+### expect
+matched
+### end
+
+### awk_regex_hash_caret
+# Issue #835: /^#/ pattern
+printf '# heading\nnormal\n' | awk '/^#/ { print "comment:", $0 }'
+### expect
+comment: # heading
+### end
+
+### awk_regex_hash_no_match
+# Regex without # still works
+echo 'abc' | awk '/abc/ { print "yes" }'
+### expect
+yes
+### end