Add custom syntax and parser support

Author: TrySound

index.js

@@ -34,6 +34,17 @@ function AtImport(options) {
   })
 
   return function(styles, result) {
+    options.parser = postcss.parse
+    if (result.opts.syntax) {
+      options.parser = result.opts.syntax.parse
+    }
+    if (result.opts.parser) {
+      options.parser = result.opts.parser
+    }
+    if (options.parser.parse) {
+      options.parser = options.parser.parse
+    }
+
     var state = {
       importedFiles: {},
       hashFiles: {},
@@ -252,7 +263,8 @@ function readImportedContent(
     return
   }
 
-  var newStyles = postcss.parse(fileContent, options)
+  var newStyles = options.parser(fileContent, options)
+
   if (options.skipDuplicates) {
     var hasImport = newStyles.some(function(child) {
       return child.type === "atrule" && child.name === "import"

package.json

@@ -26,7 +26,8 @@
   "devDependencies": {
     "ava": "^0.8.0",
     "css-whitespace": "^1.1.1",
-    "eslint": "^1.1.0"
+    "eslint": "^1.1.0",
+    "postcss-scss": "^0.1.3"
   },
   "scripts": {
     "lint": "eslint .",

test/fixtures/imports/inline-comment.scss

@@ -0,0 +1 @@
+// inline comment

test/fixtures/scss-parser.css

@@ -0,0 +1 @@
+@import "inline-comment.scss";

test/fixtures/scss-parser.expected.css

@@ -0,0 +1 @@
+/* inline comment*/

test/fixtures/scss-syntax.css

@@ -0,0 +1 @@
+@import "inline-comment.scss";

test/fixtures/scss-syntax.expected.css

@@ -0,0 +1 @@
+// inline comment

test/plugins.js

@@ -1,5 +1,6 @@
 import test from "ava"
 import postcss from "postcss"
+import scss from "postcss-scss"
 import atImport from ".."
 import compareFixtures from "./lib/compare-fixtures"
 
@@ -42,3 +43,15 @@ test("should remain silent when value is an empty array", () => {
     }))
     .process("")
 })
+
+test("should process custom syntax", t => {
+  return compareFixtures(t, "scss-syntax", null, {
+    syntax: scss,
+  })
+})
+
+test("should process custom syntax by parser", t => {
+  return compareFixtures(t, "scss-parser", null, {
+    parser: scss,
+  })
+})