fix: check if key exists in locals as text, close #102

Author: Scrum

lib/index.js

@@ -182,7 +182,7 @@ function walk (opts, nodes) {
 
     // if we have a string, match and replace it
     if (typeof node === 'string') {
-      node = placeholders(node, ctx, delimitersSettings)
+      node = placeholders(node, ctx, delimitersSettings, opts)
       node = node
         .replace(unescapeDelimitersReplace, delimitersSettings[0].text[0])
         .replace(delimitersReplace, delimitersSettings[1].text[0])
@@ -196,14 +196,14 @@ function walk (opts, nodes) {
     if (node.attrs) {
       for (const key in node.attrs) {
         if (typeof node.attrs[key] === 'string') {
-          node.attrs[key] = placeholders(node.attrs[key], ctx, delimitersSettings)
+          node.attrs[key] = placeholders(node.attrs[key], ctx, delimitersSettings, opts)
           node.attrs[key] = node.attrs[key]
             .replace(unescapeDelimitersReplace, delimitersSettings[0].text[0])
             .replace(delimitersReplace, delimitersSettings[1].text[0])
         }
 
         // if key is parametr
-        const _key = placeholders(key, ctx, delimitersSettings)
+        const _key = placeholders(key, ctx, delimitersSettings, opts)
         if (key !== _key) {
           node.attrs[_key] = node.attrs[key]
           delete node.attrs[key]

lib/placeholders.js

@@ -35,7 +35,7 @@ function escapeHTML (unescaped) {
  *
  * @return {String} input Replaced Input
  */
-function placeholders (input, ctx, settings) {
+function placeholders (input, ctx, settings, opts) {
   // Since we are matching multiple sets of delimiters, we need to run a loop
   // here to match each one.
   for (let i = 0; i < settings.length; i++) {
@@ -54,7 +54,13 @@ function placeholders (input, ctx, settings) {
       let value
 
       if (/\W+/.test(expression)) {
-        value = vm.runInContext(expression, ctx)
+        try {
+          value = vm.runInContext(expression, ctx)
+        } catch (error) {
+          if (opts.strictMode) {
+            throw new SyntaxError(error)
+          }
+        }
       } else if (Object.prototype.hasOwnProperty.call(ctx, expression)) {
         value = ctx[expression]
       }