From fe78255d4d6302a94791803bed3e4575f45347db Mon Sep 17 00:00:00 2001
From: "Eric A. Meyer" <eric@meyerweb.com>
Date: Thu, 16 Dec 2021 15:42:29 -0500
Subject: [PATCH 1/6] Added shadow directionality to the dir attribute

---
 source | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/source b/source
index c88d08510fd..6359361058f 100644
--- a/source
+++ b/source
@@ -12245,6 +12245,29 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
    </dd>
 
 
+   <dt>If the element is slotted and the <code data-x="attr-dir">dir</code> attribute of its
+   associated slot is in a defined state</dt>
+
+   <dd><p><span>The directionality</span> of the element is the same as the slot's
+   <span data-x="the directionality">directionality</span>.</p></dd>
+
+   <dt>If the element is slotted and the <code data-x="attr-dir">dir</code> attribute of its
+   associated slot is in the <span data-x="attr-dir-auto-state">auto</span> state</dt>
+
+   <dd><p><span>The directionality</span> of the element is the same as the
+   slot's host element's <span data-x="the directionality">directionality</span>.</p></dd>
+
+   <dt>If the element is a <code>slot</code> element and the <code data-x="attr-dir">dir</code>
+   attribute is in the <span data-x="attr-dir-auto-state">auto</span> state</dt>
+
+   <dd><p><span>The directionality</span> of the element is the same as its host
+   element's <span data-x="the directionality">directionality</span>.</p></dd>
+
+   <dt>If the element has a parent node which is a <span>shadow root</span></dt>
+
+   <dd><p><span>The directionality</span> of the <span>shadow root</span> is the same its host
+   element's <span data-x="the directionality">directionality</span>.</p></dd>
+
    <dt>If the element has a parent element and the <code data-x="attr-dir">dir</code> attribute is
    not in a defined state (i.e. it is not present or has an invalid value)</dt>
 

From b3bdb24c785a38c916cc24ec51aa7117dc020e59 Mon Sep 17 00:00:00 2001
From: "Eric A. Meyer" <eric@meyerweb.com>
Date: Tue, 8 Feb 2022 14:09:21 -0500
Subject: [PATCH 2/6] Edited to use Elika's rewrite

---
 source | 96 +++++++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 65 insertions(+), 31 deletions(-)

diff --git a/source b/source
index 6359361058f..b2bd850d267 100644
--- a/source
+++ b/source
@@ -11896,8 +11896,15 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
   data-x="">lang</code></dfn> attribute in the <span>XML namespace</span> is defined in XML. <ref
   spec=XML></p>
 
-  <p>If these attributes are omitted from an element, then the language of this element is the same
-  as the language of its parent element, if any.</p>
+  <p>If these attributes are omitted from an element, then the language of this element is:
+  <dl class="switch">
+   <dt>If the element's parent is a <span>shadow root</span>
+   <dt>If the element itself is a <code>slot</code> element
+   <dd>the same as the language of its <span>shadow root</span>'s <span>host</span> element, if any.</dd>
+
+   <dt>Otherwise</dt>
+   <dd>the same as the language of its parent element, if any.</dd>
+  </dl>
 
   <p>The <code data-x="attr-lang">lang</code> attribute in no namespace may be used on any <span
   data-x="HTML elements">HTML element</span>.</p>
@@ -12198,6 +12205,16 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
    </dd>
 
 
+   <dt>If the element has a parent node that is a <span>shadow root</span> and its own
+   <code data-x="attr-dir">dir</code> attribute is not in a defined state (i.e. it is not present or
+   has an invalid value)</dt>
+   <dt>If the element is a <code>slot</code> element and its <code data-x="attr-dir">dir</code>
+   attribute is not in a defined state (i.e. it is not present or has an invalid value)</dt>
+
+   <dd><p><span>The directionality</span> of the element is the same as its <span>shadow
+   root</span>'s <span>host</span> element's
+   <span data-x="the directionality">directionality</span>.</p></dd>
+
 
    <dt>If the element's <code data-x="attr-dir">dir</code> attribute is in the <span
    data-x="attr-dir-auto-state">auto</span> state</dt>
@@ -12206,44 +12223,61 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
    attribute is not in a defined state (i.e. it is not present or has an invalid value)</dt>
 
    <dd>
-    <p>Find the first character in <span>tree order</span> that matches the following criteria:</p>
-
-    <ul>
-
-     <li><p>The character is from a <code>Text</code> node that is a descendant of the element whose
-     <span data-x="the directionality">directionality</span> is being determined.</p></li>
-
-     <li><p>The character is of bidirectional character type L, AL, or R. <ref spec=BIDI></li>
-
-     <li>
-      <p>The character is not in a <code>Text</code> node that has an ancestor element that is a
-      descendant of the element whose <span data-x="the directionality">directionality</span> is
-      being determined and that is either:</p>
+    <dl class="switch">
+     <dt>If the element is not a <code>slot</code> element</dt>
+     <dd>Find among its descendant elements and <code>Text</code> nodes the first (in <span>tree
+     order</span>) <span>bidi-available</span> <code>slot</code> element or <span>strong
+     character</span>.</dd>
+
+     <dt>If the element is a <code>slot</code> element</dt>
+     <dd>Find among its slotted elements and <code>Text</code> nodes (including their descendants)
+     the first (in <span>tree order</span>) <span>bidi-available</span> <code>slot</code> element or
+     <span>strong character</span>.</dd>
+    </dl>
 
-      <ul class="brief">
-       <li>A <code>bdi</code> element.
-       <li>A <code>script</code> element.
-       <li>A <code>style</code> element.
-       <li>A <code>textarea</code> element.
-       <li>An element with a <code data-x="attr-dir">dir</code> attribute in a defined state.
-      </ul>
-     </li>
+    <p class="note">This search does not recurse into <span>shadow trees</span>.</p>
 
-    </ul>
+    <p>A <code>slot</code> element or <span>strong character</span> is only <dfn>bidi-available</dfn>
+    if it does <em>not</em> have an ancestor element that is both a descendant of the element
+    whose <span data-x="the directionality">directionality</span> is being determined and also
+    a <dfn>bidi-excluded element</dfn>:</p>
+     <ul class="brief">
+      <li>A <code>bdi</code> element.
+      <li>A <code>script</code> element.
+      <li>A <code>style</code> element.
+      <li>A <code>textarea</code> element.
+      <li>An element with a <code data-x="attr-dir">dir</code> attribute in a defined state.
+     </ul>
 
-    <p>If such a character is found and it is of bidirectional character type AL or R, <span>the
-    directionality</span> of the element is '<span data-x="concept-rtl">rtl</span>'.</p>
+    <p>A character is a <dfn>strong character</dfn> if the character is of bidirectional character type
+    L, AL, or R. <ref spec=BIDI></p>
 
-    <p>If such a character is found and it is of bidirectional character type L, <span>the
-    directionality</span> of the element is '<span data-x="concept-ltr">ltr</span>'.</p>
+    <p>If such a <span>strong character</span> or <code>slot</code> element is found:</p>
+    <dl class="switch">
+     <dt>If the character is of bidirectional character type AL or R</dt>
+     <dt>If the <code>slot</code> has a <span data-x="the directionality">directionality</span> of <span data-x="concept-rtl">rtl</span></dt>
+     <dd><span>The directionality</span> of the element is '<span data-x="concept-rtl">rtl</span>'.</dd>
+     <dt>If the character is of bidirectional character type L</dt>
+     <dt>If the <code>slot</code> has a <span data-x="the directionality">directionality</span> of <span data-x="concept-ltr">ltr</span></dt>
+     <dd><span>The directionality</span> of the element is '<span data-x="concept-ltr">ltr</span>'.</dd>
+    </dl>
 
     <p>Otherwise, if the element is a <span>document element</span>, <span>the directionality</span>
     of the element is '<span data-x="concept-ltr">ltr</span>'.</p>
 
+    <p>Otherwise, if the element is a <code>slot</code> element, <span>the directionality</span>
+    of the element is the same as its <span>shadow root</span>'s <span>host</span> element's
+    <span data-x="the directionality">directionality</span>.</p>
+
     <p>Otherwise, <span>the directionality</span> of the element is the same as the element's parent
     element's <span data-x="the directionality">directionality</span>.</p>
    </dd>
 
+   <dt>If the element is <span>slotted</span> and its <code data-x="attr-dir">dir</code> attribute
+   is not in a defined state (i.e. it is not present or has an invalid value)</dt>
+
+   <dd><p><span>The directionality</span> of the element is the
+   <span data-x="the directionality">directionality</span> of its <span>assigned slot</span>.</p></dd>
 
    <dt>If the element is slotted and the <code data-x="attr-dir">dir</code> attribute of its
    associated slot is in a defined state</dt>
@@ -117565,13 +117599,13 @@ br[clear=all i], br[clear=both i] { clear: both; }</code></pre>
 
   <pre><code class="css">@namespace url(http://www.w3.org/1999/xhtml);
 
-[dir]:dir(ltr), bdi:dir(ltr), input[type=tel i]:dir(ltr) { direction: ltr; }
-[dir]:dir(rtl), bdi:dir(rtl) { direction: rtl; }
+[dir]:dir(ltr), bdi:dir(ltr), slot:dir(ltr), input[type=tel i]:dir(ltr) { direction: ltr; }
+[dir]:dir(rtl), bdi:dir(rtl), slot:dir(rtl) { direction: rtl; }
 
 address, blockquote, center, div, figure, figcaption, footer, form, header, hr,
 legend, listing, main, p, plaintext, pre, summary, xmp, article, aside, h1, h2,
 h3, h4, h5, h6, hgroup, nav, section, table, caption, colgroup, col, thead,
-tbody, tfoot, tr, td, th, dir, dd, dl, dt, menu, ol, ul, li, bdi, output,
+tbody, tfoot, tr, td, th, dir, dd, dl, dt, menu, ol, ul, li, bdi, output, slot,
 [dir=ltr i], [dir=rtl i], [dir=auto i] {
   unicode-bidi: isolate; <!-- anything that's similar to display:block, plus <bdi>, <output>, and dir="" -->
 }

From d46d084e579643a1e8c410ab93ec74f413ca21e3 Mon Sep 17 00:00:00 2001
From: "Eric A. Meyer" <eric@meyerweb.com>
Date: Tue, 8 Feb 2022 14:18:24 -0500
Subject: [PATCH 3/6] Fixing Wattsi build errors

---
 source | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/source b/source
index b2bd850d267..55f53aa1340 100644
--- a/source
+++ b/source
@@ -11900,7 +11900,7 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
   <dl class="switch">
    <dt>If the element's parent is a <span>shadow root</span>
    <dt>If the element itself is a <code>slot</code> element
-   <dd>the same as the language of its <span>shadow root</span>'s <span>host</span> element, if any.</dd>
+   <dd>the same as the language of its <span>shadow root</span>'s <span data-x="dom-hyperlink-host">host</span> element, if any.</dd>
 
    <dt>Otherwise</dt>
    <dd>the same as the language of its parent element, if any.</dd>
@@ -12212,7 +12212,7 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
    attribute is not in a defined state (i.e. it is not present or has an invalid value)</dt>
 
    <dd><p><span>The directionality</span> of the element is the same as its <span>shadow
-   root</span>'s <span>host</span> element's
+   root</span>'s <span data-x="dom-hyperlink-host">host</span> element's
    <span data-x="the directionality">directionality</span>.</p></dd>
 
 
@@ -12235,7 +12235,7 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
      <span>strong character</span>.</dd>
     </dl>
 
-    <p class="note">This search does not recurse into <span>shadow trees</span>.</p>
+    <p class="note">This search does not recurse into <span data-x="shadow tree">shadow trees</span>.</p>
 
     <p>A <code>slot</code> element or <span>strong character</span> is only <dfn>bidi-available</dfn>
     if it does <em>not</em> have an ancestor element that is both a descendant of the element
@@ -12266,14 +12266,14 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
     of the element is '<span data-x="concept-ltr">ltr</span>'.</p>
 
     <p>Otherwise, if the element is a <code>slot</code> element, <span>the directionality</span>
-    of the element is the same as its <span>shadow root</span>'s <span>host</span> element's
+    of the element is the same as its <span>shadow root</span>'s <span data-x="dom-hyperlink-host">host</span> element's
     <span data-x="the directionality">directionality</span>.</p>
 
     <p>Otherwise, <span>the directionality</span> of the element is the same as the element's parent
     element's <span data-x="the directionality">directionality</span>.</p>
    </dd>
 
-   <dt>If the element is <span>slotted</span> and its <code data-x="attr-dir">dir</code> attribute
+   <dt>If the element is slotted and its <code data-x="attr-dir">dir</code> attribute
    is not in a defined state (i.e. it is not present or has an invalid value)</dt>
 
    <dd><p><span>The directionality</span> of the element is the

From b24d8e26f3c6d10bfcb82981d48d7bf4d6e89216 Mon Sep 17 00:00:00 2001
From: "Eric A. Meyer" <eric@meyerweb.com>
Date: Tue, 15 Mar 2022 13:56:02 -0400
Subject: [PATCH 4/6] data-x cross reference added

---
 source | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/source b/source
index 55f53aa1340..e696027f655 100644
--- a/source
+++ b/source
@@ -12208,11 +12208,11 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
    <dt>If the element has a parent node that is a <span>shadow root</span> and its own
    <code data-x="attr-dir">dir</code> attribute is not in a defined state (i.e. it is not present or
    has an invalid value)</dt>
-   <dt>If the element is a <code>slot</code> element and its <code data-x="attr-dir">dir</code>
+   <dt>If the element is a <code>slot</code> element whose root is a shadow root and whose <code data-x="attr-dir">dir</code>
    attribute is not in a defined state (i.e. it is not present or has an invalid value)</dt>
 
-   <dd><p><span>The directionality</span> of the element is the same as its <span>shadow
-   root</span>'s <span data-x="dom-hyperlink-host">host</span> element's
+   <dd><p><span>The directionality</span> of the element is the same as its
+   <span>root</span>'s <span data-x="dom-hyperlink-host">host</span> element's
    <span data-x="the directionality">directionality</span>.</p></dd>
 
 
@@ -12230,7 +12230,7 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
      character</span>.</dd>
 
      <dt>If the element is a <code>slot</code> element</dt>
-     <dd>Find among its slotted elements and <code>Text</code> nodes (including their descendants)
+     <dd><span data-x="finding flattened slottables">Find flattened slottables</span>, and then find among its slotted elements and <code>Text</code> nodes (including their descendants)
      the first (in <span>tree order</span>) <span>bidi-available</span> <code>slot</code> element or
      <span>strong character</span>.</dd>
     </dl>

From 3cf5ac7b8444eba70b1382e1bfaffda066d60e15 Mon Sep 17 00:00:00 2001
From: "Eric A. Meyer" <eric@meyerweb.com>
Date: Fri, 15 Apr 2022 12:22:19 -0400
Subject: [PATCH 5/6] Updates to try to make things more concrete

---
 source | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source b/source
index e696027f655..aa958b8356c 100644
--- a/source
+++ b/source
@@ -2994,6 +2994,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
      <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#concept-slotable">slottable</dfn> concept</li>
      <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#assign-slotables-for-a-tree">assign slottables for a tree</dfn> algorithm</li>
      <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#concept-tree-inclusive-descendant">inclusive descendants</dfn> concept</li>
+     <li>The <dfn data-x="finding slottables" data-x-href="https://dom.spec.whatwg.org/#find-slotables">find slottables</dfn> algorithm</li>
      <li>The <dfn data-x="finding flattened slottables" data-x-href="https://dom.spec.whatwg.org/#find-flattened-slotables">find flattened slottables</dfn> algorithm</li>
      <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#slottable-manual-slot-assignment">manual slot assignment</dfn> concept</li>
      <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#assign-a-slot">assign a slot</dfn> algorithm</li>
@@ -12230,7 +12231,7 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
      character</span>.</dd>
 
      <dt>If the element is a <code>slot</code> element</dt>
-     <dd><span data-x="finding flattened slottables">Find flattened slottables</span>, and then find among its slotted elements and <code>Text</code> nodes (including their descendants)
+     <dd><span data-x="finding slottables">Find slottables</span>, and then find among its slotted elements and <code>Text</code> nodes (including their descendants)
      the first (in <span>tree order</span>) <span>bidi-available</span> <code>slot</code> element or
      <span>strong character</span>.</dd>
     </dl>

From b7b84e81f2fc6971c1b2e7abfbd2d2c1a71c8d65 Mon Sep 17 00:00:00 2001
From: "Eric A. Meyer" <eric@meyerweb.com>
Date: Thu, 28 Jul 2022 12:22:33 -0400
Subject: [PATCH 6/6] Edits as per comments on 7427

---
 source | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/source b/source
index aa958b8356c..a79d98b2ec7 100644
--- a/source
+++ b/source
@@ -11900,7 +11900,7 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
   <p>If these attributes are omitted from an element, then the language of this element is:
   <dl class="switch">
    <dt>If the element's parent is a <span>shadow root</span>
-   <dt>If the element itself is a <code>slot</code> element
+   <dt>If the element itself is a <code>slot</code> element that has a <span data-x="concept-element-shadow-root">shadow root</span> as its root
    <dd>the same as the language of its <span>shadow root</span>'s <span data-x="dom-hyperlink-host">host</span> element, if any.</dd>
 
    <dt>Otherwise</dt>
@@ -12231,17 +12231,18 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
      character</span>.</dd>
 
      <dt>If the element is a <code>slot</code> element</dt>
-     <dd><span data-x="finding slottables">Find slottables</span>, and then find among its slotted elements and <code>Text</code> nodes (including their descendants)
+     <dd><span data-x="finding slottables">Find slottables</span>, and then find among its slotted elements
+     and <code>Text</code> nodes (including their descendants)
      the first (in <span>tree order</span>) <span>bidi-available</span> <code>slot</code> element or
      <span>strong character</span>.</dd>
     </dl>
 
     <p class="note">This search does not recurse into <span data-x="shadow tree">shadow trees</span>.</p>
 
-    <p>A <code>slot</code> element or <span>strong character</span> is only <dfn>bidi-available</dfn>
-    if it does <em>not</em> have an ancestor element that is both a descendant of the element
-    whose <span data-x="the directionality">directionality</span> is being determined and also
-    a <dfn>bidi-excluded element</dfn>:</p>
+    <p>A <code>slot</code> element or <span>strong character</span> is <dfn>bidi-available</dfn> to
+    an element <var>E</var> whose <span data-x="the directionality">directionality</span> is being determined
+    only if it does <em>not</em> have an ancestor element that is both a descendant of <var>E</var>
+    and also a <dfn>bidi-excluded element</dfn>:</p>
      <ul class="brief">
       <li>A <code>bdi</code> element.
       <li>A <code>script</code> element.