refactor: refactored locals parsing logic to allow inner locals feature

Author: felippe-regazio

lib/index.js

@@ -17,16 +17,27 @@ module.exports = (options = {}) => {
 
     tree.match({tag: 'include'}, node => {
       let src = node.attrs.src || false;
-      let locals = node.attrs.locals || (node.content ? node.content.join().replace(/'\n'/g, '') : false);
       let content;
       let subtree;
       let source;
+      let locals;
+
+      const localsString = node.attrs.locals || (node.content ? node.content.join().replace(/\n/g, '') : '');
+      const tryToParseLocals = localsString.trim() && localsString.trim().startsWith('{');
+
+      if (tryToParseLocals) {
+        try {
+          locals = JSON.parse(localsString);
+        } catch {
+          locals = false;
+        }
+      }
 
       if (src) {
         src = path.resolve(options.root, src);
         source = fs.readFileSync(src, options.encoding);
-        if (locals && locals.includes(':')) {
-          locals = JSON.parse(locals);
+
+        if (locals) {
           const result = posthtml()
             .use(expressions({locals}))
             .process(source, {sync: true});