Fix regex parsing with slashes (#53)

lydell · Nov 22, 2024 · 72049c6 · 72049c6
1 parent 359b8f1
commit 72049c6
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/index.coffee b/index.coffee
@@ -16,9 +16,9 @@ RegularExpressionLiteral = ///
       |
       \\.
     )*
-    \]
+    \]?
     |
-    [^ / \\ \n \r \u2028 \u2029 ]+
+    [^ / [ \\ \n \r \u2028 \u2029 ]+
     |
     \\.
   )*

diff --git a/test/index.test.js b/test/index.test.js
@@ -809,6 +809,11 @@ describe("Token", () => {
     match("/[\\]/]/");
     match("/[\\\\]/]/", "/[\\\\]/");
     match("/[\\\\\\]/]/");
+    match("/a[/]/");
+    match("/a[\\]]/");
+    match("/a[\\]/]/");
+    match("/a[\\\\]/]/", "/a[\\\\]/");
+    match("/a[\\\\\\]/]/");
     match("/abc]xyz/", "/abc]xyz/");
     match("/\\u05aF/");
     match("/invalid escape sequence is OK: \\u/");
-Original file line number
+Diff line change
@@ Expand Up / @@ -16,9 +16,9 @@ RegularExpressionLiteral = /// @@
           |
           \\.
         )*
-        \]
+        \]?
         |
-        [^ / \\ \n \r \u2028 \u2029 ]+
+        [^ / [ \\ \n \r \u2028 \u2029 ]+
         |
         \\.
       )*
@@ Expand Down @@