--- a/webvtt/webvtt.html Sat Nov 09 14:31:01 2013 +1100
+++ b/webvtt/webvtt.html Sat Nov 09 16:32:33 2013 +1100
@@ -2655,33 +2655,54 @@
<ol>
- <li><p>If <var title="">value</var> contains any characters other than U+0025 PERCENT SIGN
- characters (%) and <a>ASCII digits</a>, then jump to the step labeled <i>next
- setting</i>.</p></li>
-
- <li><p>If <var title="">value</var> does not contain at least one <a title="ASCII
+ <li><p>If <var title="">value</var> contains a U+002C COMMA character (,), then let
+ <var title="">colpos</var> be the leading substring of <var title="">value</var> up to and
+ excluding the first U+002C COMMA character (,) in that string and let <var title="">colalign</var>
+ be the trailing substring of <var title="">value</var> starting from the character immediately
+ after the first U+002C COMMA character (,) in that string.</p></li>
+
+ <li><p>Otherwise let <var title="">colpos</var> be the full <var title="">value</var> string
+ and <var title="">colalign</var> be the empty string.</p></li>
+
+ <li><p>If <var title="">colpos</var> contains any characters other than U+0025 PERCENT SIGN
+ characters (%) and <a>ASCII digits</a>, then jump to the step labeled
+ <i>next setting</i>.</p></li>
+
+ <li><p>If <var title="">colpos</var> does not contain at least one <a title="ASCII
digits">ASCII digit</a>, then jump to the step labeled <i>next setting</i>.</p></li>
- <li><p>If any character in <var title="">value</var> other
+ <li><p>If any character in <var title="">colpos</var> other
than the last character is a U+0025 PERCENT SIGN character
- (%), then jump to the step labeled <i>next
- setting</i>.</p></li>
-
- <li><p>If the last character in <var title="">value</var> is
+ (%), then jump to the step labeled <i>next setting</i>.</p></li>
+
+ <li><p>If the last character in <var title="">colpos</var> is
not a U+0025 PERCENT SIGN character (%), then jump to the
step labeled <i>next setting</i>.</p></li>
- <li><p>Ignoring the trailing percent sign, interpret <var
- title="">value</var> as an integer, and let <var
- title="">number</var> be that number.</p></li>
+ <li><p>Ignoring the trailing percent sign, interpret <var title="">colpos</var> as an integer,
+ and let <var title="">number</var> be that number.</p></li>
<li><p>If <var title="">number</var> is not in the range
- 0 ≤ <var
- title="">number</var> ≤ 100, then jump to the
+ 0 ≤ <var title="">number</var> ≤ 100, then jump to the
step labeled <i>next setting</i>.</p></li>
- <li><p>Let <var title="">cue</var>'s <a>text track cue text
- position</a> be <var title="">number</var>.</p></li>
+ <li><p>Let <var title="">cue</var>'s <a>text track cue text position</a> be
+ <var title="">number</var>.</p></li>
+
+ <li><p>If <var title="">colalign</var> is a <a>case-sensitive</a> match for the string
+ "<code title="">start</code>", then let <var title="">cue</var>'s
+ <a>text track cue text position alignment</a> be
+ <a title="text track cue text position start alignment">start alignment</a>.</p></li>
+
+ <li><p>If <var title="">colalign</var> is a <a>case-sensitive</a> match for the string
+ "<code title="">middle</code>", then let <var title="">cue</var>'s
+ <a>text track cue text position alignment</a> be
+ <a title="text track cue text position middle alignment">middle alignment</a>.</p></li>
+
+ <li><p>If <var title="">colalign</var> is a <a>case-sensitive</a> match for the string
+ "<code title="">end</code>", then let <var title="">cue</var>'s
+ <a>text track cue text position alignment</a> be
+ <a title="text track cue text position end alignment">end alignment</a>.</p></li>
</ol>