WIP - add extractor, generate snippet_data

node_modules/unist-util-visit-children/index.js

@@ -0,0 +1,21 @@
+'use strict'
+
+module.exports = visitChildren
+
+function visitChildren(callback) {
+  return visitor
+
+  // Visit `parent`, invoking `callback` for each child.
+  function visitor(parent) {
+    var index = -1
+    var children = parent && parent.children
+
+    if (!children) {
+      throw new Error('Missing children in `parent` for `visitor`')
+    }
+
+    while (++index in children) {
+      callback(children[index], index, parent)
+    }
+  }
+}