Move coral rte to talk-plugin-rich-text

plugins/talk-plugin-rich-text/client/utils.js

@@ -0,0 +1,31 @@
+export function htmlNormalizer(htmlInput) {
+  let str = htmlInput;
+  // We are normalizing the input from contenteditable of each browser, also removing unnecesary html tags
+  // https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Editable_content#Differences_in_markup_generation
+
+  // Old browsers uses `p` normalize to `div` instead.
+  str = str
+    .replace(/<p>/g, '<div>') // IE and old browsers outputs <p> instead of <div>s
+    .replace(/<\/p>/g, '</div>'); // IE and old browsers outputs <p> instead of <div>s
+
+  // Harmonize all to <b> tag.
+  str = str
+    .replace(/<strong>/g, '<b>') // IE
+    .replace(/<\/strong>/g, '</b>'); // IE
+
+  // Harmonize all to <i> tag.
+  str = str
+    .replace(/<em>/g, '<i>') // IE
+    .replace(/<\/em>/g, '</i>'); // IE
+
+  // Remove first opening tag, otherwise
+  // with the following transformation below
+  // we might add an unintended first empty line.
+  if (str.startsWith('<div>')) {
+    str = str.replace('<div>', '');
+  }
+
+  // Normalize <div>s to <br>.
+  // return str.replace(/<div>/g, '<br>').replace(/<\/div>/g, '');
+  return str;
+}