WIP - add extractor, generate snippet_data

node_modules/domhandler/test/cases/13-comment_in_text.json

@@ -0,0 +1,19 @@
+{
+  "name": "Comment within text",
+  "options": {},
+  "html": "this is <!-- the comment --> the text",
+  "expected": [
+    {
+      "data": "this is ",
+      "type": "text"
+    },
+    {
+      "data": " the comment ",
+      "type": "comment"
+    },
+    {
+      "data": " the text",
+      "type": "text"
+    }
+  ]
+}