remark: fix escaping of backslash

Closes GH-375. Related-to GH-376. Co-authored-by: TitanSnow <sweeto@live.cn>
remarkjs · Nov 10, 2018 · 40ec693 · 40ec693
1 parent 78b7aca
commit 40ec693
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Showing 4 changed files with 44 additions and 2 deletions.
diff --git a/packages/remark-parse/lib/unescape.js b/packages/remark-parse/lib/unescape.js
@@ -26,7 +26,7 @@ function factory(ctx, key) {
         queue.push(backslash)
       }
 
-      index = value.indexOf(backslash, prev)
+      index = value.indexOf(backslash, prev + 1)
     }
 
     queue.push(value.slice(prev))

diff --git a/packages/remark-stringify/lib/visitors/code.js b/packages/remark-stringify/lib/visitors/code.js
@@ -53,7 +53,7 @@ function code(node, parent) {
     info += space + node.meta
   }
 
-  info = self.encode(info, node)
+  info = self.encode(self.escape(info, node))
 
   // Without (needed) fences.
   if (!info && !options.fences && value) {

diff --git a/test/fixtures/input/fenced-code-lang-unescape.text b/test/fixtures/input/fenced-code-lang-unescape.text
@@ -0,0 +1,3 @@
+```\\\[awd
+dwa
+```
diff --git a/test/fixtures/tree/fenced-code-lang-unescape.json b/test/fixtures/tree/fenced-code-lang-unescape.json
@@ -0,0 +1,39 @@
+{
+  "type": "root",
+  "children": [
+    {
+      "type": "code",
+      "lang": "\\[awd",
+      "meta": null,
+      "value": "dwa",
+      "position": {
+        "start": {
+          "line": 1,
+          "column": 1,
+          "offset": 0
+        },
+        "end": {
+          "line": 3,
+          "column": 4,
+          "offset": 18
+        },
+        "indent": [
+          1,
+          1
+        ]
+      }
+    }
+  ],
+  "position": {
+    "start": {
+      "line": 1,
+      "column": 1,
+      "offset": 0
+    },
+    "end": {
+      "line": 4,
+      "column": 1,
+      "offset": 19
+    }
+  }
+}