first commit

src/utils/extractHtmlAttrs.js

@@ -0,0 +1,39 @@
+const BOOLEAN_ATTRIBUTES = {
+  disabled: true,
+  readonly: true,
+  multiple: true,
+  checked: true
+}
+
+// Options which should not be passed as HTML attributes
+const OPTIONS_NOT_ATTRIBUTES = {
+  urlClass: true,
+  usernameClass: true,
+  hashtagClass: true,
+  usernameUrlBase: true,
+  hashtagUrlBase: true,
+  targetBlank: true,
+  urlTarget: true,
+  invisibleTagAttrs: true,
+  linkAttributeBlock: true,
+  htmlEscapeNonEntities: true,
+  extractUrlsWithoutProtocol: true
+}
+
+export default function (options) {
+  const htmlAttrs = {}
+  for (const k in options) {
+    let v = options[k]
+    if (OPTIONS_NOT_ATTRIBUTES[k]) {
+      continue
+    }
+    if (BOOLEAN_ATTRIBUTES[k]) {
+      v = v ? k : null
+    }
+    if (v == null) {
+      continue
+    }
+    htmlAttrs[k] = v
+  }
+  return htmlAttrs
+}