Added support for WebVTT cue settings

We don't use them for anything, but we should still parse the
subtitles.

Added a test for this and also for voice spans.

babelsubs/parsers/webvtt.py

@@ -13,6 +13,7 @@ def __init__(self, input_string, language_code, eager_parse=True):
         pattern = r'(?P<s_hour>\d{2}):(?P<s_min>\d{2}):(?P<s_sec>\d{2})(.(?P<s_secfr>\d*))?'
         pattern += r' --> '
         pattern += r'(?P<e_hour>\d{2}):(?P<e_min>\d{2}):(?P<e_sec>\d{2})(.(?P<e_secfr>\d*))?'
+        pattern += r'([ \t]+(?P<cue_settings>[^\r\n]+))?'
         pattern += r'\n(\n|(?P<text>.+?)\n\n)'
         input_string = input_string.replace('\r\n', '\n').replace('\r', '\n')+'\n\n'
         super(WEBVTTParser, self).__init__(input_string, pattern, language=language_code,

babelsubs/tests/data/cue-settings.vtt

@@ -0,0 +1,21 @@
+WEBVTT
+Region: id=fred width=40% lines=3 regionanchor=0%,100% viewportanchor=10%,90% scroll=up
+Region: id=bill width=40% lines=3 regionanchor=100%,100% viewportanchor=90%,90% scroll=up
+
+00:00:00.000 --> 00:00:20.000 region:fred align:left
+Hi, my name is Fred
+
+00:00:02.500 --> 00:00:22.500 region:bill align:right
+Hi, I'm Bill
+
+00:00:05.000 --> 00:00:25.000 region:fred align:left
+Would you like to get a coffee?
+
+00:00:07.500 --> 00:00:27.500 region:bill align:right
+Sure! I've only had one today.
+
+00:00:10.000 --> 00:00:30.000 region:fred align:left
+This is my fourth!
+
+00:00:12.500 --> 00:00:32.500 region:fred align:left
+OK, let's go.

babelsubs/tests/data/voice-span.vtt

@@ -0,0 +1,21 @@
+WEBVTT
+Region: id=fred width=40% lines=3 regionanchor=0%,100% viewportanchor=10%,90% scroll=up
+Region: id=bill width=40% lines=3 regionanchor=100%,100% viewportanchor=90%,90% scroll=up
+
+00:00:00.000 --> 00:00:20.000
+<v Fred>Hi, my name is Fred
+
+00:00:02.500 --> 00:00:22.500
+<v Bill>Hi, I'm Bill
+
+00:00:05.000 --> 00:00:25.000
+<v Fred>Would you like to get a coffee?
+
+00:00:07.500 --> 00:00:27.500
+<v Bill>Sure! I've only had one today.
+
+00:00:10.000 --> 00:00:30.000
+<v Fred>This is my fourth!
+
+00:00:12.500 --> 00:00:32.500
+<v Fred>OK, let's go.

babelsubs/tests/test_webvtt.py

@@ -61,6 +61,17 @@ def test_mixed_newlines(self):
         self.assertIn('<p begin="99:59:59.000" end="99:59:59.000">I\'m gutted. <br/>Absolutely gutted.</p>',
             parsed.to_xml())
 
+    def test_cue_settings(self):
+        subs  = utils.get_subs("cue-settings.vtt")
+        self.assertEquals(len(subs), 6)
+        self.assertEquals(subs.to_internal().subtitle_items()[0].text,
+                          'Hi, my name is Fred')
+
+    def test_voice_span(self):
+        subs  = utils.get_subs("voice-span.vtt")
+        self.assertEquals(len(subs), 6)
+        self.assertEquals(subs.to_internal().subtitle_items()[0].text,
+                          'Hi, my name is Fred')
 
 class WEBVTTGeneratorTest(TestCase):