Allow HTML paths with no elements

2 files changed, 15 insertions, 3 deletions

diff --git a/lib/style-reader.js b/lib/style-reader.js
index b76478f..ef379b6 100644
--- a/lib/style-reader.js
+++ b/lib/style-reader.js
@@ -19,12 +19,14 @@ function createStyleRule() {
         lop.rules.sequence.capture(documentMatcherRule()),
         lop.rules.tokenOfType("whitespace"),
         lop.rules.tokenOfType("arrow"),
-        lop.rules.tokenOfType("whitespace"),
-        lop.rules.sequence.capture(htmlPathRule())
+        lop.rules.sequence.capture(lop.rules.optional(lop.rules.sequence(
+            lop.rules.tokenOfType("whitespace"),
+            lop.rules.sequence.capture(htmlPathRule())
+        ).head()))
     ).map(function(documentMatcher, htmlPath) {
         return {
             from: documentMatcher,
-            to: htmlPath
+            to: htmlPath.valueOrElse(htmlPaths.empty)
         };
     });
 }
diff --git a/tests/style-reader.tests.js b/tests/style-reader.tests.js
index df32839..7927153 100644
--- a/tests/style-reader.tests.js
+++ b/tests/style-reader.tests.js
@@ -105,4 +105,14 @@ describe("styleReader.read", function() {
             }
         );
     });
+    
+    test("reads style mapping with no HTML path", function() {
+        assert.deepEqual(
+            readStyle("r =>"),
+            {
+                from: documentMatchers.run(),
+                to: htmlPaths.empty
+            }
+        );
+    });
 });