--- a/ttml-ww-profiles/ttml-ww-profiles.html Wed Sep 10 14:54:38 2014 -0700
+++ b/ttml-ww-profiles/ttml-ww-profiles.html Tue Sep 23 15:33:38 2014 -0700
@@ -217,11 +217,11 @@
</p>
<h1 class="title p-name" id="title" property="dcterms:title">TTML Text and Image Profiles for Internet Media Subtitles and Captions 1.0</h1>
- <h2 property="dcterms:issued" datatype="xsd:dateTime" content="2014-09-11T04:51:40.000Z" id="w3c-first-public-working-draft-10-september-2014"><abbr title="World Wide Web Consortium">W3C</abbr> First Public Working Draft <time class="dt-published" datetime="2014-09-10">10 September 2014</time></h2>
+ <h2 property="dcterms:issued" datatype="xsd:dateTime" content="2014-09-24T05:28:34.000Z" id="w3c-first-public-working-draft-23-september-2014"><abbr title="World Wide Web Consortium">W3C</abbr> First Public Working Draft <time class="dt-published" datetime="2014-09-23">23 September 2014</time></h2>
<dl>
<dt>This version:</dt>
- <dd><a class="u-url" href="http://www.w3.org/TR/2014/WD-ttml-imsc1-20140910/">http://www.w3.org/TR/2014/WD-ttml-imsc1-20140910/</a></dd>
+ <dd><a class="u-url" href="http://www.w3.org/TR/2014/WD-ttml-imsc1-20140923/">http://www.w3.org/TR/2014/WD-ttml-imsc1-20140923/</a></dd>
<dt>Latest published version:</dt>
<dd><a href="http://www.w3.org/TR/ttml-imsc1/">http://www.w3.org/TR/ttml-imsc1/</a></dd>
@@ -346,7 +346,7 @@
-</section><section id="toc"><h2 class="introductory" aria-level="1" role="heading" id="h2_toc">Table of Contents</h2><ul class="toc" role="directory" id="respecContents"><li class="tocline"><a href="#scope" class="tocxref"><span class="secno">1. </span>Scope</a></li><li class="tocline"><a href="#terms" class="tocxref"><span class="secno">2. </span>Terms and Definitions</a></li><li class="tocline"><a href="#conformance" class="tocxref"><span class="secno">3. </span>Conformance</a></li><li class="tocline"><a href="#profiles" class="tocxref"><span class="secno">4. </span>Profiles</a><ul class="toc"><li class="tocline"><a href="#general" class="tocxref"><span class="secno">4.1 </span>General</a></li><li class="tocline"><a href="#text-profile" class="tocxref"><span class="secno">4.2 </span>Text Profile</a></li><li class="tocline"><a href="#image-profile" class="tocxref"><span class="secno">4.3 </span>Image Profile</a></li></ul></li><li class="tocline"><a href="#common-constraints" class="tocxref"><span class="secno">5. </span>Common Constraints</a><ul class="toc"><li class="tocline"><a href="#document-encoding" class="tocxref"><span class="secno">5.1 </span>Document Encoding</a></li><li class="tocline"><a href="#foreign-element-and-attributes" class="tocxref"><span class="secno">5.2 </span>Foreign Element and Attributes</a></li><li class="tocline"><a href="#namespaces" class="tocxref"><span class="secno">5.3 </span>Namespaces</a></li><li class="tocline"><a href="#related-video-object" class="tocxref"><span class="secno">5.4 </span>Related Video Object</a></li><li class="tocline"><a href="#synchronization" class="tocxref"><span class="secno">5.5 </span>Synchronization</a></li><li class="tocline"><a href="#extensions" class="tocxref"><span class="secno">5.6 </span>Extensions</a><ul class="toc"><li class="tocline"><a href="#ttp-aspectRatio" class="tocxref"><span class="secno">5.6.1 </span>ittp:aspectRatio</a></li><li class="tocline"><a href="#ttp-progressivelyDecodable" class="tocxref"><span class="secno">5.6.2 </span>ittp:progressivelyDecodable</a></li><li class="tocline"><a href="#tts-forcedDisplay" class="tocxref"><span class="secno">5.6.3 </span>itts:forcedDisplay</a></li><li class="tocline"><a href="#ttm-altText" class="tocxref"><span class="secno">5.6.4 </span>ittm:altText</a></li></ul></li><li class="tocline"><a href="#region" class="tocxref"><span class="secno">5.7 </span>Region</a><ul class="toc"><li class="tocline"><a href="#presented-region" class="tocxref"><span class="secno">5.7.1 </span>Presented Region</a></li><li class="tocline"><a href="#dimensions-and-position" class="tocxref"><span class="secno">5.7.2 </span>Dimensions and Position</a></li><li class="tocline"><a href="#maximum-number" class="tocxref"><span class="secno">5.7.3 </span>Maximum number</a></li></ul></li><li class="tocline"><a href="#hypothetical-render-model-1" class="tocxref"><span class="secno">5.8 </span>Hypothetical Render Model</a></li><li class="tocline"><a href="#common-features" class="tocxref"><span class="secno">5.9 </span>Features</a></li></ul></li><li class="tocline"><a href="#text-profile-constraints" class="tocxref"><span class="secno">6. </span>Text Profile Constraints</a><ul class="toc"><li class="tocline"><a href="#text-profile-designator" class="tocxref"><span class="secno">6.1 </span>Profile Designator</a></li><li class="tocline"><a href="#recommended-character-sets" class="tocxref"><span class="secno">6.2 </span>Recommended Character Sets</a></li><li class="tocline"><a href="#features" class="tocxref"><span class="secno">6.3 </span>Features</a></li></ul></li><li class="tocline"><a href="#image-profile-constraints" class="tocxref"><span class="secno">7. </span>Image Profile Constraints</a><ul class="toc"><li class="tocline"><a href="#image-profile-designator" class="tocxref"><span class="secno">7.1 </span>Profile Designator</a></li><li class="tocline"><a href="#presented-image" class="tocxref"><span class="secno">7.2 </span>Presented Image</a><ul class="toc"><li class="tocline"><a href="#definition" class="tocxref"><span class="secno">7.2.1 </span>Definition</a></li><li class="tocline"><a href="#number-per-region" class="tocxref"><span class="secno">7.2.2 </span>Number per Region</a></li></ul></li><li class="tocline"><a href="#div-element" class="tocxref"><span class="secno">7.3 </span><code>div</code> element</a></li><li class="tocline"><a href="#features-1" class="tocxref"><span class="secno">7.4 </span>Features</a></li></ul></li><li class="tocline"><a href="#hypothetical-render-model" class="tocxref"><span class="secno">8. </span>Hypothetical Render Model</a><ul class="toc"><li class="tocline"><a href="#performance-model" class="tocxref"><span class="secno">8.1 </span>Performance Model</a><ul class="toc"><li class="tocline"><a href="#overview" class="tocxref"><span class="secno">8.1.1 </span>Overview</a></li><li class="tocline"><a href="#general-1" class="tocxref"><span class="secno">8.1.2 </span>General</a></li><li class="tocline"><a href="#paint-regions" class="tocxref"><span class="secno">8.1.3 </span>Paint Regions</a></li><li class="tocline"><a href="#paint-images" class="tocxref"><span class="secno">8.1.4 </span>Paint Images</a></li><li class="tocline"><a href="#paint-text" class="tocxref"><span class="secno">8.1.5 </span>Paint Text</a></li></ul></li><li class="tocline"><a href="#reference-fonts" class="tocxref"><span class="secno">8.2 </span>Reference Fonts</a></li></ul></li><li class="tocline"><a href="#recommended-unicode-code-points-per-language" class="tocxref"><span class="secno">A. </span>Recommended Character Sets</a></li><li class="tocline"><a href="#forced-content" class="tocxref"><span class="secno">B. </span>Forced content (non-normative)</a></li><li class="tocline"><a href="#wcag-applications" class="tocxref"><span class="secno">C. </span>WCAG Considerations</a></li><li class="tocline"><a href="#features-and-extensions" class="tocxref"><span class="secno">D. </span>Extensions</a><ul class="toc"><li class="tocline"><a href="#general-2" class="tocxref"><span class="secno">D.1 </span>General</a></li><li class="tocline"><a href="#progressivelydecodable" class="tocxref"><span class="secno">D.2 </span>#progressivelyDecodable</a></li><li class="tocline"><a href="#aspectratio" class="tocxref"><span class="secno">D.3 </span>#aspectRatio</a></li><li class="tocline"><a href="#forceddisplay" class="tocxref"><span class="secno">D.4 </span>#forcedDisplay</a></li><li class="tocline"><a href="#alttext" class="tocxref"><span class="secno">D.5 </span>#altText</a></li></ul></li><li class="tocline"><a href="#references" class="tocxref"><span class="secno">E. </span>References</a><ul class="toc"><li class="tocline"><a href="#normative-references" class="tocxref"><span class="secno">E.1 </span>Normative references</a></li><li class="tocline"><a href="#informative-references" class="tocxref"><span class="secno">E.2 </span>Informative references</a></li></ul></li></ul></section>
+</section><section id="toc"><h2 class="introductory" aria-level="1" role="heading" id="h2_toc">Table of Contents</h2><ul class="toc" role="directory" id="respecContents"><li class="tocline"><a href="#scope" class="tocxref"><span class="secno">1. </span>Scope</a></li><li class="tocline"><a href="#terms" class="tocxref"><span class="secno">2. </span>Terms and Definitions</a></li><li class="tocline"><a href="#conformance" class="tocxref"><span class="secno">3. </span>Conformance</a></li><li class="tocline"><a href="#profiles" class="tocxref"><span class="secno">4. </span>Profiles</a><ul class="toc"><li class="tocline"><a href="#general" class="tocxref"><span class="secno">4.1 </span>General</a></li><li class="tocline"><a href="#text-profile" class="tocxref"><span class="secno">4.2 </span>Text Profile</a></li><li class="tocline"><a href="#image-profile" class="tocxref"><span class="secno">4.3 </span>Image Profile</a></li></ul></li><li class="tocline"><a href="#common-constraints" class="tocxref"><span class="secno">5. </span>Common Constraints</a><ul class="toc"><li class="tocline"><a href="#document-encoding" class="tocxref"><span class="secno">5.1 </span>Document Encoding</a></li><li class="tocline"><a href="#foreign-element-and-attributes" class="tocxref"><span class="secno">5.2 </span>Foreign Element and Attributes</a></li><li class="tocline"><a href="#namespaces" class="tocxref"><span class="secno">5.3 </span>Namespaces</a></li><li class="tocline"><a href="#related-video-object" class="tocxref"><span class="secno">5.4 </span>Related Video Object</a></li><li class="tocline"><a href="#synchronization" class="tocxref"><span class="secno">5.5 </span>Synchronization</a></li><li class="tocline"><a href="#extensions" class="tocxref"><span class="secno">5.6 </span>Extensions</a><ul class="toc"><li class="tocline"><a href="#ttp-aspectRatio" class="tocxref"><span class="secno">5.6.1 </span>ittp:aspectRatio</a></li><li class="tocline"><a href="#ttp-progressivelyDecodable" class="tocxref"><span class="secno">5.6.2 </span>ittp:progressivelyDecodable</a></li><li class="tocline"><a href="#tts-forcedDisplay" class="tocxref"><span class="secno">5.6.3 </span>itts:forcedDisplay</a></li><li class="tocline"><a href="#ttm-altText" class="tocxref"><span class="secno">5.6.4 </span>ittm:altText</a></li></ul></li><li class="tocline"><a href="#region" class="tocxref"><span class="secno">5.7 </span>Region</a><ul class="toc"><li class="tocline"><a href="#presented-region" class="tocxref"><span class="secno">5.7.1 </span>Presented Region</a></li><li class="tocline"><a href="#dimensions-and-position" class="tocxref"><span class="secno">5.7.2 </span>Dimensions and Position</a></li><li class="tocline"><a href="#maximum-number" class="tocxref"><span class="secno">5.7.3 </span>Maximum number</a></li></ul></li><li class="tocline"><a href="#hypothetical-render-model-1" class="tocxref"><span class="secno">5.8 </span>Hypothetical Render Model</a></li><li class="tocline"><a href="#common-features" class="tocxref"><span class="secno">5.9 </span>Features</a></li></ul></li><li class="tocline"><a href="#text-profile-constraints" class="tocxref"><span class="secno">6. </span>Text Profile Constraints</a><ul class="toc"><li class="tocline"><a href="#text-profile-designator" class="tocxref"><span class="secno">6.1 </span>Profile Designator</a></li><li class="tocline"><a href="#recommended-character-sets" class="tocxref"><span class="secno">6.2 </span>Recommended Character Sets</a></li><li class="tocline"><a href="#features" class="tocxref"><span class="secno">6.3 </span>Features</a></li></ul></li><li class="tocline"><a href="#image-profile-constraints" class="tocxref"><span class="secno">7. </span>Image Profile Constraints</a><ul class="toc"><li class="tocline"><a href="#image-profile-designator" class="tocxref"><span class="secno">7.1 </span>Profile Designator</a></li><li class="tocline"><a href="#presented-image" class="tocxref"><span class="secno">7.2 </span>Presented Image</a><ul class="toc"><li class="tocline"><a href="#definition" class="tocxref"><span class="secno">7.2.1 </span>Definition</a></li><li class="tocline"><a href="#number-per-region" class="tocxref"><span class="secno">7.2.2 </span>Number per Region</a></li></ul></li><li class="tocline"><a href="#div-element" class="tocxref"><span class="secno">7.3 </span><code>div</code> element</a></li><li class="tocline"><a href="#features-1" class="tocxref"><span class="secno">7.4 </span>Features</a></li></ul></li><li class="tocline"><a href="#hypothetical-render-model" class="tocxref"><span class="secno">8. </span>Hypothetical Render Model</a><ul class="toc"><li class="tocline"><a href="#performance-model" class="tocxref"><span class="secno">8.1 </span>Performance Model</a><ul class="toc"><li class="tocline"><a href="#overview" class="tocxref"><span class="secno">8.1.1 </span>Overview</a></li><li class="tocline"><a href="#general-1" class="tocxref"><span class="secno">8.1.2 </span>General</a></li><li class="tocline"><a href="#paint-regions" class="tocxref"><span class="secno">8.1.3 </span>Paint Regions</a></li><li class="tocline"><a href="#paint-images" class="tocxref"><span class="secno">8.1.4 </span>Paint Images</a></li><li class="tocline"><a href="#paint-text" class="tocxref"><span class="secno">8.1.5 </span>Paint Text</a></li></ul></li><li class="tocline"><a href="#reference-fonts" class="tocxref"><span class="secno">8.2 </span>Reference Fonts</a></li></ul></li><li class="tocline"><a href="#recommended-unicode-code-points-per-language" class="tocxref"><span class="secno">A. </span>Recommended Character Sets</a></li><li class="tocline"><a href="#forced-content" class="tocxref"><span class="secno">B. </span>Forced content (non-normative)</a></li><li class="tocline"><a href="#wcag-applications" class="tocxref"><span class="secno">C. </span>WCAG Considerations</a></li><li class="tocline"><a href="#features-and-extensions" class="tocxref"><span class="secno">D. </span>Extensions</a><ul class="toc"><li class="tocline"><a href="#general-2" class="tocxref"><span class="secno">D.1 </span>General</a></li><li class="tocline"><a href="#progressivelydecodable" class="tocxref"><span class="secno">D.2 </span>#progressivelyDecodable</a></li><li class="tocline"><a href="#aspectratio" class="tocxref"><span class="secno">D.3 </span>#aspectRatio</a></li><li class="tocline"><a href="#forceddisplay" class="tocxref"><span class="secno">D.4 </span>#forcedDisplay</a></li><li class="tocline"><a href="#alttext" class="tocxref"><span class="secno">D.5 </span>#altText</a></li><li class="tocline"><a href="#linepadding" class="tocxref"><span class="secno">D.6 </span>#linePadding</a></li><li class="tocline"><a href="#multirowalign" class="tocxref"><span class="secno">D.7 </span>#multiRowAlign</a></li></ul></li><li class="tocline"><a href="#references" class="tocxref"><span class="secno">E. </span>References</a><ul class="toc"><li class="tocline"><a href="#normative-references" class="tocxref"><span class="secno">E.1 </span>Normative references</a></li><li class="tocline"><a href="#informative-references" class="tocxref"><span class="secno">E.2 </span>Informative references</a></li></ul></li></ul></section>
@@ -531,7 +531,17 @@
<td>[<cite><a class="bibref" href="#bib-ST2052-1">ST2052-1</a></cite>]</td>
</tr>
-
+ <tr>
+
+ <td>EBU-TT Styling</td>
+
+ <td>ebutts</td>
+
+ <td>urn:ebu:tt:style</td>
+
+ <td>[<cite><a class="bibref" href="#bib-EBUTTD">EBUTTD</a></cite>]</td>
+ </tr>
+
<tr>
<td>IMSC 1.0 Styling</td>
@@ -786,7 +796,7 @@
attribute in conjunction with an application parameter <code>displayForcedOnlyMode</code>.</p>
<p>If the value of <code>displayForcedOnlyMode</code> is "true", a content element with a <code>itts:forcedDisplay</code>
- computed value of "false" <em class="rfc2119" title="SHALL">SHALL</em> not produce any visible rendering, but still affect layout, regardless of the computed
+ computed value of "false" <em class="rfc2119" title="SHALL NOT">SHALL NOT</em> produce any visible rendering, but still affect layout, regardless of the computed
value of <code>tts:visibility</code>.</p>
<p>The <code>itts:forcedDisplay</code> attribute shall conform to the following:</p>
@@ -970,7 +980,7 @@
<tr>
<td><code>#cellResolution</code></td>
- <td><em class="rfc2119" title="SHALL NOT">SHALL NOT</em> be used.</td>
+ <td><em class="rfc2119" title="MAY">MAY</em> be used.</td>
</tr>
<tr>
@@ -1728,6 +1738,23 @@
<td><em class="rfc2119" title="SHALL NOT">SHALL NOT</em> be used.</td>
</tr>
+
+ <tr>
+ <td colspan="4"><em>Relative to the IMSC 1.0 Extension namespace</em></td>
+ </tr>
+
+ <tr>
+ <td><code>#linePadding</code></td>
+
+ <td><em class="rfc2119" title="MAY">MAY</em> be used.</td>
+ </tr>
+
+ <tr>
+ <td><code>#multiRowAlign</code></td>
+
+ <td><em class="rfc2119" title="MAY">MAY</em> be used.</td>
+ </tr>
+
</tbody>
</table>
</section>
@@ -2895,10 +2922,31 @@
<p>A <a href="#dfn-presentation-processor" class="internalDFN">presentation processor</a> supports the <code>#altText</code> feature if it implements presentation semantic support
for values of the <a href="#ttm-altText"><code>ittm:altText</code></a> element.</p>
</section>
+
+ <section class="appendix" id="linepadding">
+ <h3 aria-level="2" role="heading" id="h3_linepadding"><span class="secno">D.6 </span>#linePadding</h3>
+
+ <p>A <a href="#dfn-transformation-processor" class="internalDFN">transformation processor</a> supports the <code>#linePadding</code> feature if it recognizes and is capable of
+ transforming values of the <code>ebutts:linePadding</code> attribute specified in [<cite><a class="bibref" href="#bib-EBUTTD">EBUTTD</a></cite>].</p>
+
+ <p>A <a href="#dfn-presentation-processor" class="internalDFN">presentation processor</a> supports the <code>#altText</code> feature if it implements presentation semantic support
+ for values of the <code>ebutts:linePadding</code> attribute specified in [<cite><a class="bibref" href="#bib-EBUTTD">EBUTTD</a></cite>].</p>
+ </section>
+
+ <section class="appendix" id="multirowalign">
+ <h3 aria-level="2" role="heading" id="h3_multirowalign"><span class="secno">D.7 </span>#multiRowAlign</h3>
+
+ <p>A <a href="#dfn-transformation-processor" class="internalDFN">transformation processor</a> supports the <code>#altText</code> feature if it recognizes and is capable of
+ transforming values of the <code>ebutts:multiRowAlign</code> attribute specified in [<cite><a class="bibref" href="#bib-EBUTTD">EBUTTD</a></cite>].</p>
+
+ <p>A <a href="#dfn-presentation-processor" class="internalDFN">presentation processor</a> supports the <code>#altText</code> feature if it implements presentation semantic support
+ for values of the <code>ebutts:multiRowAlign</code> attribute specified in [<cite><a class="bibref" href="#bib-EBUTTD">EBUTTD</a></cite>].</p>
+ </section>
</section>
<section id="references" class="appendix" typeof="bibo:Chapter" resource="#references" rel="bibo:Chapter"><!--OddPage--><h2 aria-level="1" role="heading" id="h2_references"><span class="secno">E. </span>References</h2><section id="normative-references" typeof="bibo:Chapter" resource="#normative-references" rel="bibo:Chapter"><h3 aria-level="2" role="heading" id="h3_normative-references"><span class="secno">E.1 </span>Normative references</h3><dl class="bibliography" about=""><dt id="bib-CLDR">[CLDR]</dt><dd rel="dcterms:requires">Unicode Consortium. <a href="http://cldr.unicode.org">The Common Locale Data Repository Project</a>
+</dd><dt id="bib-EBUTTD">[EBUTTD]</dt><dd rel="dcterms:requires">European Broadcasting Union (EBU). Tech 3380, EBU-TT-D Subtitling Distribution Format Version 1.0
</dd><dt id="bib-MHP">[MHP]</dt><dd rel="dcterms:requires">ETSI TS 101 812 V1.3.1, Digital Video Broadcasting (DVB); Multimedia Home
</dd><dt id="bib-RFC2119">[RFC2119]</dt><dd rel="dcterms:requires">S. Bradner. <a href="http://www.ietf.org/rfc/rfc2119.txt"><cite>Key words for use in RFCs to Indicate Requirement Levels</cite></a>. March 1997. Best Current Practice. URL: <a href="http://www.ietf.org/rfc/rfc2119.txt">http://www.ietf.org/rfc/rfc2119.txt</a>
</dd><dt id="bib-ST2052-1">[ST2052-1]</dt><dd rel="dcterms:requires">SMPTE ST 2052-1, Timed Text Format (SMPTE-TT)
--- a/ttml-ww-profiles/ttml-ww-profiles.source.html Wed Sep 10 14:54:38 2014 -0700
+++ b/ttml-ww-profiles/ttml-ww-profiles.source.html Tue Sep 23 15:33:38 2014 -0700
@@ -10,6 +10,7 @@
<script class='remove'>
var respecConfig = {
specStatus: "FPWD"
+ , processVersion: 2014
, shortName: "ttml-imsc1"
, editors: [{ name: "Pierre Lemieux", mailto: "pal@sandflow.com" }]
, wg: "Timed Text Working Group"
@@ -25,6 +26,7 @@
"CEA-708": "<a href='http://www.ce.org/Standards/Standard-Listings/R4-3-Television-Data-Systems-Subcommittee/CEA-708-D.aspx'>Digital Television (DTV) Closed Captioning</a>, ANSI/CEA Standard.",
"MHP" : "ETSI TS 101 812 V1.3.1, Digital Video Broadcasting (DVB); Multimedia Home",
"ST2052-1": "SMPTE ST 2052-1, Timed Text Format (SMPTE-TT)",
+ "EBUTTD": "European Broadcasting Union (EBU). Tech 3380, EBU-TT-D Subtitling Distribution Format Version 1.0",
"SDPUS": "World Wide Web Consortium (W3C). <a href='http://www.w3.org/TR/ttml10-sdp-us/'>TTML Simple Delivery Profile for Closed Captions (US)</a> (W3C Working Group Note, 05 February 2013)",
"CLDR": "Unicode Consortium. <a href='http://cldr.unicode.org'>The Common Locale Data Repository Project</a>",
@@ -232,7 +234,17 @@
<td>[[!ST2052-1]]</td>
</tr>
-
+ <tr>
+
+ <td>EBU-TT Styling</td>
+
+ <td>ebutts</td>
+
+ <td>urn:ebu:tt:style</td>
+
+ <td>[[!EBUTTD]]</td>
+ </tr>
+
<tr>
<td>IMSC 1.0 Styling</td>
@@ -489,7 +501,7 @@
attribute in conjunction with an application parameter <code>displayForcedOnlyMode</code>.</p>
<p>If the value of <code>displayForcedOnlyMode</code> is "true", a content element with a <code>itts:forcedDisplay</code>
- computed value of "false" SHALL not produce any visible rendering, but still affect layout, regardless of the computed
+ computed value of "false" SHALL NOT produce any visible rendering, but still affect layout, regardless of the computed
value of <code>tts:visibility</code>.</p>
<p>The <code>itts:forcedDisplay</code> attribute shall conform to the following:</p>
@@ -674,7 +686,7 @@
<tr>
<td><code>#cellResolution</code></td>
- <td>SHALL NOT be used.</td>
+ <td>MAY be used.</td>
</tr>
<tr>
@@ -1433,6 +1445,23 @@
<td>SHALL NOT be used.</td>
</tr>
+
+ <tr>
+ <td colspan="4"><em>Relative to the IMSC 1.0 Extension namespace</em></td>
+ </tr>
+
+ <tr>
+ <td><code>#linePadding</code></td>
+
+ <td>MAY be used.</td>
+ </tr>
+
+ <tr>
+ <td><code>#multiRowAlign</code></td>
+
+ <td>MAY be used.</td>
+ </tr>
+
</tbody>
</table>
</section>
@@ -2600,6 +2629,26 @@
<p>A <a>presentation processor</a> supports the <code>#altText</code> feature if it implements presentation semantic support
for values of the <a href="#ttm-altText"><code>ittm:altText</code></a> element.</p>
</section>
+
+ <section class='appendix'>
+ <h3>#linePadding</h3>
+
+ <p>A <a>transformation processor</a> supports the <code>#linePadding</code> feature if it recognizes and is capable of
+ transforming values of the <code>ebutts:linePadding</code> attribute specified in [[!EBUTTD]].</p>
+
+ <p>A <a>presentation processor</a> supports the <code>#altText</code> feature if it implements presentation semantic support
+ for values of the <code>ebutts:linePadding</code> attribute specified in [[!EBUTTD]].</p>
+ </section>
+
+ <section class='appendix'>
+ <h3>#multiRowAlign</h3>
+
+ <p>A <a>transformation processor</a> supports the <code>#altText</code> feature if it recognizes and is capable of
+ transforming values of the <code>ebutts:multiRowAlign</code> attribute specified in [[!EBUTTD]].</p>
+
+ <p>A <a>presentation processor</a> supports the <code>#altText</code> feature if it implements presentation semantic support
+ for values of the <code>ebutts:multiRowAlign</code> attribute specified in [[!EBUTTD]].</p>
+ </section>
</section>
</body>
</html>