Add option to forward options to posthtml-expressions plugin

index.js

@@ -37,12 +37,11 @@ function parseLocals({options, node}, optionLocals, attributeLocals) {
 
   try {
     const locals = merge({...optionLocals}, {...attrLocals}, JSON.parse(attributeLocals));
-
-    return expressions({locals});
+    return expressions({...options.expressions, locals});
   } catch {
     const locals = merge({...optionLocals}, {...attrLocals});
 
-    return expressions({locals});
+    return expressions({...options.expressions, locals});
   }
 }
 
@@ -135,6 +134,7 @@ module.exports = (options = {}) => {
   options.attribute = options.attribute || 'href';
   options.root = path.resolve(options.root || './');
   options.attributeAsLocals = options.attributeAsLocals || false;
+  options.expressions = options.expressions || {};
 
   return function (tree) {
     if (options.initial) {

readme.md

@@ -74,7 +74,7 @@ Root path for modules lookup.
 Type: `array | function`\
 Default: `[]`
 
-PostHTML plugins to apply for every parsed module. 
+PostHTML plugins to apply for every parsed module.
 
 If a function provided, it will be called with module's file path.
 
@@ -127,10 +127,18 @@ All attributes on `<module></module>` will be added to [locals](#locals)
 Type: `object`\
 Default: `{}`
 
-Options for the PostHTML parser.  
+Options for the PostHTML parser.
 
 By default, [`posthtml-parser`](https://github.com/posthtml/posthtml-parser) is used.
 
+### `expressions`
+
+Type: `object`\
+Default: `{}`
+
+Options to forward to [posthtml-expressions](https://github.com/posthtml/posthtml-expressions), like custom delimiters for example. Available options can be found [here](https://github.com/posthtml/posthtml-expressions#options).
+
+
 ## Component options
 
 ### `locals`

test/locals.expressions.spec.html

@@ -0,0 +1 @@
+<div><i>%[ foo ]%</i><b>{{ ignored }}</b></div>

test/test.js

@@ -195,3 +195,12 @@ test('Must parse attribute as locals', async t => {
 
   t.is(html, expected);
 });
+
+test('Must use posthtml-expressions options', async t => {
+  const actual = `<module href="./test/locals.expressions.spec.html" locals='{"foo":"bar"}'></module>`;
+  const expected = `<div><i>bar</i><b>{{ ignored }}</b></div>`;
+
+  const html = await posthtml().use(plugin({expressions: {delimiters: ['%[', ']%']}})).process(actual).then(result => clean(result.html));
+
+  t.is(html, expected);
+});