fix: lexer enhancement to support asterix and dash in metric segment

package.json

@@ -42,7 +42,8 @@
     "karma-phantomjs-launcher": "~0.1.1",
     "karma": "~0.10.9",
     "grunt-karma": "~0.6.2",
-    "karma-mocha": "~0.1.1"
+    "karma-mocha": "~0.1.1",
+    "karma-expect": "~1.0.0"
   },
   "license": "Apache License"
 }

src/app/services/graphite/lexer.js

@@ -119,6 +119,8 @@ define([
       i === 36 ||           // $
       i >= 65 && i <= 90 || // A-Z
       i === 95 ||           // _
+      i === 45 ||          // -
+      i === 42 ||         // *
       i >= 97 && i <= 122;  // a-z
   }
 

src/test/specs/lexer-specs.js

@@ -14,6 +14,14 @@ define([
       expect(tokens[4].pos).to.be(13);
     });
 
+    it('should tokenize metric expression with dash', function() {
+      var lexer = new Lexer('metric.test.se1-server-*.asd.count');
+      var tokens = lexer.tokenize();
+      expect(tokens[4].type).to.be('identifier');
+      expect(tokens[4].value).to.be('se1-server-*');
+    });
+
+
     it('should tokenize functions and args', function() {
       var lexer = new Lexer("sum(metric.test, 12, 'test')");
       var tokens = lexer.tokenize();