add ability to flush parser at the end of a file

tests/run-tests.js

@@ -8,12 +8,17 @@ function parse(file) {
   var result = 0;
   try {
     var parser = new WebVTTParser();
+    parser.oncue = function (cue) {
+      if (result >= 0)
+        ++result;
+    }
     parser.onerror = function () {
-      result = 1;
+      result = -1;
     }
     parser.parse(text);
+    parser.flush();
   } catch (e) {
-    result = 2;
+    result = -2;
   }
   return result;
 }
@@ -27,6 +32,7 @@ function test(file) {
 }
 
 var TESTS = [
+             "no-newline-at-end.vtt",
              "cue-identifier.vtt",
              "fail-bad-utf8.vtt",
              "many-comments.vtt",
@@ -35,7 +41,6 @@ var TESTS = [
              "line-breaks.vtt",
              "not-only-nested-cues.vtt",
              "only-nested-cues.vtt",
-             "no-newline-at-end.vtt",
              "voice-spans.vtt"
 ];
 

vtt.js

@@ -55,7 +55,8 @@ WebVTTParser.prototype = {
   parse: function (data) {
     var self = this;
 
-    self.buffer += data;
+    if (data)
+      self.buffer += data;
 
     function collectNextLine() {
       var buffer = self.buffer;
@@ -124,7 +125,7 @@ WebVTTParser.prototype = {
             settings: "",
             startTime: 0,
             endTime: 0,
-            contnet: ""
+            content: ""
           };
           self.state = "CUE";
           // 30-39 - Check if self line contains an optional identifier or timing data.
@@ -153,7 +154,7 @@ WebVTTParser.prototype = {
             self.state = "ID";
             continue;
           }
-          if (!self.cue.content)
+          if (self.cue.content)
             self.cue.content += "\n";
           self.cue.content += line;
           continue;
@@ -169,5 +170,17 @@ WebVTTParser.prototype = {
     } catch (e) {
       self.onerror && self.onerror();
     }
+  },
+  flush: function () {
+    var self = this;
+    if (self.state === "ID")
+      return;
+    // Synthesize the end of the current block.
+    self.buffer += "\n\n";
+    self.parse();
+    if (self.buffer) {
+      // Incompletely parsed file.
+      self.onerror && self.onerror();
+    }
   }
 };