Add script content preservation during formatting

src/lib/html-formatter.js

@@ -54,7 +54,25 @@ const minify = function(el)  {
 
 const convert = {
   comment: [],
-  line: []
+  line: [],
+  script: []
+};
+
+const preserveScripts = function (el) {
+  convert.script = [];
+  el = el.replace(/(<script[^>]*>)([\s\S]*?)(<\/script>)/gi, function (match, open, content, close) {
+    if (!content.trim()) return match;
+    convert.script.push(content);
+    return open + '[#s# : ' + (convert.script.length - 1) + ' : #s#]' + close;
+  });
+  return el;
+};
+
+const restoreScripts = function (el) {
+  convert.script.forEach(function (content, index) {
+    el = el.replace('[#s# : ' + index + ' : #s#]', content);
+  });
+  return el;
 };
 
 const comment = function (el) {
@@ -125,11 +143,13 @@ const tidy = function (el) {
 
 const render = function (el, opt) {
   el = closing(el);
+  el = preserveScripts(el);
   el = comment(el);
   el = entity(el);
   el = minify(el);
   el = line(el);
   el = tidy(el);
+  el = restoreScripts(el);
 
   return el;
 };