Ignore lines in style map beginning with #

2 files changed, 24 insertions, 4 deletions

diff --git a/lib/options-reader.js b/lib/options-reader.js
index e61507e..f2f31e2 100644
--- a/lib/options-reader.js
+++ b/lib/options-reader.js
@@ -71,9 +71,13 @@ function readCustomStyleMap(styleMap) {
     if (!styleMap) {
         return [];
     } else if (_.isString(styleMap)) {
-        return styleMap.split("\n").map(function(line) {
-            return line.trim();
-        });
+        return styleMap.split("\n")
+            .filter(function(line) {
+                return line.charAt(0) !== "#";
+            })
+            .map(function(line) {
+                return line.trim();
+            });
     } else {
         return styleMap;
     }
diff --git a/tests/options-reader.tests.js b/tests/options-reader.tests.js
index 2c43b7c..94c864c 100644
--- a/tests/options-reader.tests.js
+++ b/tests/options-reader.tests.js
@@ -14,7 +14,7 @@ describe('readOptions', function() {
         assert.deepEqual(standardOptions, readOptions({}));
     });
     
-    it('custom style mappings are prepended to standard style mappings', function() {
+    it('custom style map as string is prepended to standard style map', function() {
         var options = readOptions({
             styleMap: "p.SectionTitle => h2"
         });
@@ -22,6 +22,22 @@ describe('readOptions', function() {
         assert.deepEqual(standardOptions.styleMap, options.styleMap.slice(1));
     });
     
+    it('custom style map as array is prepended to standard style map', function() {
+        var options = readOptions({
+            styleMap: ["p.SectionTitle => h2"]
+        });
+        assert.deepEqual("p.SectionTitle => h2", options.styleMap[0]);
+        assert.deepEqual(standardOptions.styleMap, options.styleMap.slice(1));
+    });
+    
+    it('lines starting with # in custom style map are ignored', function() {
+        var options = readOptions({
+            styleMap: "# p.SectionTitle => h3\np.SectionTitle => h2"
+        });
+        assert.deepEqual("p.SectionTitle => h2", options.styleMap[0]);
+        assert.deepEqual(standardOptions.styleMap, options.styleMap.slice(1));
+    });
+    
     it('default style mappings are ignored if includeDefaultStyleMap is false', function() {
         var options = readOptions({
             styleMap: "p.SectionTitle => h2",