From cf8325bb263ec551e69636483eb5a54dc7c4a7b3 Mon Sep 17 00:00:00 2001
From: "Victor M. Alvarez" <vmalvarez@virustotal.com>
Date: Wed, 3 Apr 2024 19:06:01 +0200
Subject: [PATCH] feat: add note for clarifying regexp error

---
 lib/src/compiler/tests/testdata/errors/123.in  | 6 ++++++
 lib/src/compiler/tests/testdata/errors/123.out | 7 +++++++
 lib/src/re/parser.rs                           | 3 ++-
 3 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 lib/src/compiler/tests/testdata/errors/123.in
 create mode 100644 lib/src/compiler/tests/testdata/errors/123.out

diff --git a/lib/src/compiler/tests/testdata/errors/123.in b/lib/src/compiler/tests/testdata/errors/123.in
new file mode 100644
index 000000000..1f76af482
--- /dev/null
+++ b/lib/src/compiler/tests/testdata/errors/123.in
@@ -0,0 +1,6 @@
+rule test {
+  strings:
+    $a = /{(foo|bar)/
+  condition:
+  	$a
+}
\ No newline at end of file
diff --git a/lib/src/compiler/tests/testdata/errors/123.out b/lib/src/compiler/tests/testdata/errors/123.out
new file mode 100644
index 000000000..8a1a05083
--- /dev/null
+++ b/lib/src/compiler/tests/testdata/errors/123.out
@@ -0,0 +1,7 @@
+error: invalid regular expression
+ --> line:3:11
+  |
+3 |     $a = /{(foo|bar)/
+  |           ^ repetition operator missing expression
+  |
+  = note: did you mean `\{` instead of `{`?
\ No newline at end of file
diff --git a/lib/src/re/parser.rs b/lib/src/re/parser.rs
index 191796a47..d55457f94 100644
--- a/lib/src/re/parser.rs
+++ b/lib/src/re/parser.rs
@@ -130,7 +130,8 @@ impl Parser {
                         esc_seq, esc_seq
                     ))
                 }
-                ErrorKind::RepetitionCountUnclosed
+                ErrorKind::RepetitionMissing
+                | ErrorKind::RepetitionCountUnclosed
                 | ErrorKind::RepetitionCountDecimalEmpty => {
                     Some("did you mean `\\{` instead of `{`?".to_string())
                 }