planning

node_modules/mdast-util-to-markdown/lib/util/pattern-in-scope.js

@@ -0,0 +1,30 @@
+module.exports = patternInScope
+
+function patternInScope(stack, pattern) {
+  return (
+    listInScope(stack, pattern.inConstruct, true) &&
+    !listInScope(stack, pattern.notInConstruct)
+  )
+}
+
+function listInScope(stack, list, none) {
+  var index
+
+  if (!list) {
+    return none
+  }
+
+  if (typeof list === 'string') {
+    list = [list]
+  }
+
+  index = -1
+
+  while (++index < list.length) {
+    if (stack.indexOf(list[index]) !== -1) {
+      return true
+    }
+  }
+
+  return false
+}