fix(parsing): allow usage of '@' in blocks

dss.js

@@ -215,7 +215,7 @@ let dss = ( function() {
             let indexer = function( str, find ) {
                 return ( str.indexOf( find ) > 0 ) ? str.indexOf( find ) : false;
             };
-            let parts = line.replace( /.*@/, '' );
+            let parts = line.replace( /[^@]*@/, '' );
             let i = indexer( parts, ' ' ) || indexer( parts, '\n' ) || indexer( parts, '\r' ) || parts.length;
             let name = _dss.trim( parts.substr( 0, i ) );
             let description = _dss.trim( parts.substr( i ) );
@@ -385,7 +385,7 @@ let dss = ( function() {
         /* eslint-disable no-param-reassign */
         // find the next instance of a parser (if there is one based on the @ symbol)
         // in order to isolate the current multi-line parser
-        let nextParserIndex = block.indexOf('@', i + 1);
+        let nextParserIndex = block.indexOf('\n @', i + 1);
         let markupLength = (nextParserIndex > -1) ? nextParserIndex - i : block.length;
         let markup = _dss.trim(block.split('').splice(i, markupLength).join(''));
         let parserMarker = '@' + parserName;

test/data/description-with-special-symbol.scss

@@ -0,0 +1,3 @@
+/// @description Your standard description with an @ in it
+/// second row test
+/// @name Special character "@" description test.

test/test.js

@@ -65,6 +65,17 @@ describe('Core tests', function() {
         });
     });
 
+    it('description with the @ symbol is correctly parsed', function() {
+        const file = fs.readFileSync(path.join(__dirname, 'data/description-with-special-symbol.scss'), 'utf8');
+
+        dss.parse(file, {}, function(parsed) {
+            const data = parsed.blocks[0];
+
+            assert.strictEqual(data.name, 'Special character "@" description test.');
+            assert.strictEqual(data.description, 'Your standard description with an @ in it\nsecond row test');
+        });
+    });
+
     it('should should parse all annotations', function() {
         const file = fs.readFileSync(path.join(__dirname, 'data/all-annotations.scss'), 'utf8');