planning

node_modules/stringify-entities/lib/util/to-named.js

@@ -0,0 +1,33 @@
+module.exports = toNamed
+
+var legacy = require('character-entities-legacy')
+var characters = require('../constant/characters')
+var fromCharCode = require('../constant/from-char-code')
+var own = require('../constant/has-own-property')
+var dangerous = require('../constant/dangerous.json')
+
+// Transform `code` into a named character reference.
+function toNamed(code, next, omit, attribute) {
+  var character = fromCharCode(code)
+  var name
+  var value
+
+  if (own.call(characters, character)) {
+    name = characters[character]
+    value = '&' + name
+
+    if (
+      omit &&
+      own.call(legacy, name) &&
+      dangerous.indexOf(name) === -1 &&
+      (!attribute ||
+        (next && next !== 61 /* `=` */ && /[^\da-z]/i.test(fromCharCode(next))))
+    ) {
+      return value
+    }
+
+    return value + ';'
+  }
+
+  return ''
+}