From 8ffd11185930f16382eb0e567ebd68678168c3c9 Mon Sep 17 00:00:00 2001
From: Brian Kardell <bkardell@gmail.com>
Date: Wed, 21 Jun 2023 19:27:21 -0400
Subject: [PATCH 1/4] Editorial rework of diractionality in order to make
 integration of shadow dom a bit easier to understand

---
 source | 167 +++++++++++++++++++++++++++++++++------------------------
 1 file changed, 98 insertions(+), 69 deletions(-)

diff --git a/source b/source
index be9f621d529..8be82e6d914 100644
--- a/source
+++ b/source
@@ -13402,55 +13402,18 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
 
   <dl class="switch">
 
-
    <dt>If the element's <code data-x="attr-dir">dir</code> attribute is in the <span
    data-x="attr-dir-ltr-state">ltr</span> state</dt>
 
-   <dt>If the element is a <span>document element</span> 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>
-
-   <dt>If the element is an <code>input</code> element whose <code
-   data-x="attr-input-type">type</code> attribute is in the <span
-   data-x="attr-input-type-tel">Telephone</span> state, 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>
-
    <dd><p><span>The directionality</span> of the element is '<span
    data-x="concept-ltr">ltr</span>'.</p></dd>
 
-
    <dt>If the element's <code data-x="attr-dir">dir</code> attribute is in the <span
    data-x="attr-dir-rtl-state">rtl</span> state</dt>
 
    <dd><p><span>The directionality</span> of the element is '<span
    data-x="concept-rtl">rtl</span>'.</p></dd>
 
-   <dt>If the element is an <code>input</code> element whose <code
-   data-x="attr-input-type">type</code> attribute is in the <span
-   data-x="attr-input-type-text">Text</span>, <span data-x="attr-input-type-search">Search</span>,
-   <span data-x="attr-input-type-tel">Telephone</span>, <span
-   data-x="attr-input-type-url">URL</span>, or <span data-x="attr-input-type-email">Email</span>
-   state, and the <code data-x="attr-dir">dir</code> attribute is in the <span
-   data-x="attr-dir-auto-state">auto</span> state</dt>
-
-   <dt>If the element is a <code>textarea</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>If the element's <span data-x="concept-fe-value">value</span> contains a character of
-    bidirectional character type AL or R, and there is no character of bidirectional character type
-    L anywhere before it in the element's <span data-x="concept-fe-value">value</span>, then
-    <span>the directionality</span> of the element is '<span data-x="concept-rtl">rtl</span>'. <ref spec=BIDI></p>
-
-    <p>Otherwise, if the element's <span data-x="concept-fe-value">value</span> is not the empty
-    string, or 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, <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's <code data-x="attr-dir">dir</code> attribute is in the <span
    data-x="attr-dir-auto-state">auto</span> state</dt>
 
@@ -13458,50 +13421,99 @@ 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>
+    <p>The element's <span data-x="the directionality">directionality</span> is determined as
+    follows:</p>
+    <dl class="switch">
+     <dt>If the element is an <code>input</code> element whose <code
+     data-x="attr-input-type">type</code> attribute is in the <span
+     data-x="attr-input-type-text">Text</span>, <span data-x="attr-input-type-search">Search</span>,
+     <span data-x="attr-input-type-tel">Telephone</span>, <span
+     data-x="attr-input-type-url">URL</span>, or <span
+     data-x="attr-input-type-email">Email</span> state</dt>
+     <dt>If the element is a <code>textarea</code> element</dt>
+     <dd>
+       <p>The element's <span data-x="the directionality">directionality</span> is determined
+       based on the element's <span data-x="concept-fe-value">value</span> via the following steps:
+       </p>
+       <dl class="switch">
+        <dt>If the element's <span data-x="concept-fe-value">value</span> contains a character of
+        bidirectional character type AL or R, and there is no character of bidirectional character
+        type L anywhere before it in the element's <span data-x="concept-fe-value">value</span></dt>
+        <dd><span>The directionality</span> of the element is '<span
+        data-x="concept-rtl">rtl</span>' <ref spec=BIDI>.
+
+        <dt>If the element's <span data-x="concept-fe-value">value</span> is the empty string, or if
+        the element has no parent element</dt>
+        <dd><span>The directionality</span> of the element is '<span
+        data-x="concept-ltr">ltr</span>'.</dd>
+
+        <dt>Otherwise</dt>
+        <dd><span>the directionality</span> of the element is the same as the element's parent
+        element's <span data-x="the directionality">directionality</span>.</dd>
+
+       </dl>
+      </dd>
+
+      <dt>Otherwise</dt>
+      <dd>
+       <p><span>The directionality</span> is determined from the element's contents as follows:</p>
+       <ol>
+        <li><p>Let <var>b</var> be the first (in <span>tree order</span>)
+         <span>bidi-available</span> <code>slot</code> element or <span>strong character</span>
+         found among its slotted elements and <code>Text</code> nodes
+            (including their descendants)</p>
+        </li>
+        <li>
+         <p>Determine <span>the directionality</span> from  <var>b</var> as follows:</p>
+         <dl class="switch">
 
-     <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>
+          <dt>If <var>b</var> is a character is of bidirectional character type AL or R</dt>
+          <dd><span>The directionality</span> of the element is '<span
+          data-x="concept-rtl">rtl</span>'.</dd>
 
-     <li><p>The character is of bidirectional character type L, AL, or R. <ref spec=BIDI></li>
+          <dt>If <var>b</var> is a character is of bidirectional character type L</dt>
+          <dd><span>The directionality</span> of the element is '<span
+          data-x="concept-ltr">ltr</span>'.</dd>
 
-     <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>
+          <dt>If <var>b</var> is not found</dt>
+          <dd><span>The directionality</span> of the element is the same as if the element's <code
+          data-x="attr-dir">dir</code> attribute were not in a defined state (and the element
+          were not a <code>bdi</code> element).</dd>
+        </dl>
+       </li>
+      </ol>
+     </dd>
+    </dl>
+   </dd>
 
-      <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>
+   <dt>If 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>
 
-    </ul>
+   <dd>
+    <p>The element's <span data-x="the directionality">directionality</span> is determined as
+    follows:</p>
+    <dl class="switch">
+      <dt>If the element is an <code>input</code> element whose
+      <code data-x="attr-input-type">type</code> attribute is in the
+      <span data-x="attr-input-type-tel">Telephone</span> state</dt>
 
-    <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>
+      <dd><p><span>The directionality</span> of the element is
+      '<span data-x="concept-ltr">ltr</span>'.</p></dd>
 
-    <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>
+      <dt>If the element has a parent element</dt>
 
-    <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>
+      <dd><p><span>The directionality</span> of the element is the same as its
+      parent element's
+      <span data-x="the directionality">directionality</span>.</p></dd>
 
-    <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>Otherwise</dt>
 
+      <dd><p><span>The directionality</span> of the element is "<code
+      data-x="concept-ltr">ltr</code>".</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>
+     </dl>
+   </dd>
 
-   <dd><p><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>
   </dl>
 
   <p class="note">Since the <code data-x="attr-dir">dir</code> attribute is only defined for
@@ -13515,6 +13527,23 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
   <p class="note">This attribute <a href="#bidireq">has rendering requirements involving the
   bidirectional algorithm</a>.</p>
 
+  <p>A <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.
+    <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>A character is a <dfn>strong character</dfn> if the character is of bidirectional character
+  type L, AL, or R. <ref spec=BIDI></p>
+
   </div>
 
   <hr>

From 1abc8a865755f491a903f002dd96fd3079936141 Mon Sep 17 00:00:00 2001
From: Brian Kardell <bkardell@gmail.com>
Date: Fri, 14 Jul 2023 19:02:08 -0400
Subject: [PATCH 2/4] address several of  anne's nits and remove the claim that
 we are switching based on value

---
 source | 31 +++++++++++++++----------------
 1 file changed, 15 insertions(+), 16 deletions(-)

diff --git a/source b/source
index 8be82e6d914..ade26c5a3e3 100644
--- a/source
+++ b/source
@@ -13423,6 +13423,7 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
    <dd>
     <p>The element's <span data-x="the directionality">directionality</span> is determined as
     follows:</p>
+
     <dl class="switch">
      <dt>If the element is an <code>input</code> element whose <code
      data-x="attr-input-type">type</code> attribute is in the <span
@@ -13432,36 +13433,34 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
      data-x="attr-input-type-email">Email</span> state</dt>
      <dt>If the element is a <code>textarea</code> element</dt>
      <dd>
-       <p>The element's <span data-x="the directionality">directionality</span> is determined
-       based on the element's <span data-x="concept-fe-value">value</span> via the following steps:
-       </p>
-       <dl class="switch">
-        <dt>If the element's <span data-x="concept-fe-value">value</span> contains a character of
+      <p>The element's <span data-x="the directionality">directionality</span> is determined
+      via the following steps:</p>
+      <dl class="switch">
+       <dt>If the element's <span data-x="concept-fe-value">value</span> contains a character of
         bidirectional character type AL or R, and there is no character of bidirectional character
         type L anywhere before it in the element's <span data-x="concept-fe-value">value</span></dt>
-        <dd><span>The directionality</span> of the element is '<span
+       <dd><span>The directionality</span> of the element is '<span
         data-x="concept-rtl">rtl</span>' <ref spec=BIDI>.
 
-        <dt>If the element's <span data-x="concept-fe-value">value</span> is the empty string, or if
+       <dt>If the element's <span data-x="concept-fe-value">value</span> is the empty string, or if
         the element has no parent element</dt>
-        <dd><span>The directionality</span> of the element is '<span
+       <dd><span>The directionality</span> of the element is '<span
         data-x="concept-ltr">ltr</span>'.</dd>
 
-        <dt>Otherwise</dt>
-        <dd><span>the directionality</span> of the element is the same as the element's parent
+       <dt>Otherwise</dt>
+       <dd><span>the directionality</span> of the element is the same as the element's parent
         element's <span data-x="the directionality">directionality</span>.</dd>
 
-       </dl>
-      </dd>
+      </dl>
+     </dd>
 
-      <dt>Otherwise</dt>
+     <dt>Otherwise</dt>
       <dd>
        <p><span>The directionality</span> is determined from the element's contents as follows:</p>
        <ol>
         <li><p>Let <var>b</var> be the first (in <span>tree order</span>)
-         <span>bidi-available</span> <code>slot</code> element or <span>strong character</span>
-         found among its slotted elements and <code>Text</code> nodes
-            (including their descendants)</p>
+         <span>bidi-available</span> <span>strong character</span>
+         found among its <code>Text</code> nodes (including their descendants)</p>
         </li>
         <li>
          <p>Determine <span>the directionality</span> from  <var>b</var> as follows:</p>

From 31ec95bc692d41e6547259f5bf99881e80b474d8 Mon Sep 17 00:00:00 2001
From: Brian Kardell <bkardell@gmail.com>
Date: Wed, 19 Jul 2023 14:42:39 -0400
Subject: [PATCH 3/4] s/via the following steps/as follows   -- plus some
 wrapping and existing nits which were pointed out

---
 source | 35 ++++++++++++++++++-----------------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/source b/source
index ade26c5a3e3..df7ceeb78fc 100644
--- a/source
+++ b/source
@@ -13434,7 +13434,8 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
      <dt>If the element is a <code>textarea</code> element</dt>
      <dd>
       <p>The element's <span data-x="the directionality">directionality</span> is determined
-      via the following steps:</p>
+      as follows:</p>
+
       <dl class="switch">
        <dt>If the element's <span data-x="concept-fe-value">value</span> contains a character of
         bidirectional character type AL or R, and there is no character of bidirectional character
@@ -13485,12 +13486,13 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
     </dl>
    </dd>
 
-   <dt>If the <code data-x="attr-dir">dir</code> attribute is not in a defined state (i.e. it is not
+   <dt>If 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>
 
    <dd>
     <p>The element's <span data-x="the directionality">directionality</span> is determined as
     follows:</p>
+
     <dl class="switch">
       <dt>If the element is an <code>input</code> element whose
       <code data-x="attr-input-type">type</code> attribute is in the
@@ -13523,25 +13525,24 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
 
   <div w-nodev>
 
-  <p class="note">This attribute <a href="#bidireq">has rendering requirements involving the
-  bidirectional algorithm</a>.</p>
+   <p class="note">This attribute <a href="#bidireq">has rendering requirements involving the
+   bidirectional algorithm</a>.</p>
+
+   <p>A <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>
 
-  <p>A <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.
-    <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.
+    <li>A <code>bdi</code> element.</li>
+    <li>A <code>script</code> element.</li>
+    <li>A <code>style</code> element.</li>
+    <li>A <code>textarea</code> element.</li>
+    <li>An element with a <code data-x="attr-dir">dir</code> attribute in a defined state.</li>
    </ul>
 
-  <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>A character is a <dfn>strong character</dfn> if the character is of bidirectional character
+   type L, AL, or R. <ref spec=BIDI></p>
 
   </div>
 

From 003fd507cdf8de5bbbece58bdb1894164c64aaee Mon Sep 17 00:00:00 2001
From: Anne van Kesteren <annevk@annevk.nl>
Date: Fri, 21 Jul 2023 14:14:46 +0200
Subject: [PATCH 4/4] nits

---
 source | 116 ++++++++++++++++++++++++---------------------------------
 1 file changed, 48 insertions(+), 68 deletions(-)

diff --git a/source b/source
index df7ceeb78fc..3dfaae20ee9 100644
--- a/source
+++ b/source
@@ -13358,23 +13358,16 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
   <dl>
    <dt>The <dfn attr-value for="html-global/dir"><code data-x="attr-dir-ltr">ltr</code></dfn>
    keyword, which maps to the <dfn data-x="attr-dir-ltr-state">ltr</dfn> state</dt>
-
-   <dd>
-    <p>Indicates that the contents of the element are explicitly directionally isolated
-    left-to-right text.</p>
-   </dd>
+   <dd><p>Indicates that the contents of the element are explicitly directionally isolated
+   left-to-right text.</p></dd>
 
    <dt>The <dfn attr-value for="html-global/dir"><code data-x="attr-dir-rtl">rtl</code></dfn>
    keyword, which maps to the <dfn data-x="attr-dir-rtl-state">rtl</dfn> state</dt>
-
-   <dd>
-    <p>Indicates that the contents of the element are explicitly directionally isolated
-    right-to-left text.</p>
-   </dd>
+   <dd><p>Indicates that the contents of the element are explicitly directionally isolated
+   right-to-left text.</p></dd>
 
    <dt>The <dfn attr-value for="html-global/dir"><code data-x="attr-dir-auto">auto</code></dfn>
    keyword, which maps to the <dfn data-x="attr-dir-auto-state">auto</dfn> state</dt>
-
    <dd>
     <p>Indicates that the contents of the element are explicitly directionally isolated text, but
     that the direction is to be determined programmatically using the contents of the element (as
@@ -13391,7 +13384,8 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
    </dd>
   </dl>
 
-  <p>The attribute has no <i data-x="invalid value default">invalid value default</i> and no <i data-x="missing value default">missing value default</i>.</p>
+  <p>The attribute has no <i data-x="invalid value default">invalid value default</i> and no <i
+  data-x="missing value default">missing value default</i>.</p>
 
   <hr>
 
@@ -13401,25 +13395,20 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
   the following list:</p>
 
   <dl class="switch">
-
    <dt>If the element's <code data-x="attr-dir">dir</code> attribute is in the <span
    data-x="attr-dir-ltr-state">ltr</span> state</dt>
-
    <dd><p><span>The directionality</span> of the element is '<span
    data-x="concept-ltr">ltr</span>'.</p></dd>
 
    <dt>If the element's <code data-x="attr-dir">dir</code> attribute is in the <span
    data-x="attr-dir-rtl-state">rtl</span> state</dt>
-
    <dd><p><span>The directionality</span> of the element is '<span
    data-x="concept-rtl">rtl</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>
-
    <dt>If the element is a <code>bdi</code> 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>
-
    <dd>
     <p>The element's <span data-x="the directionality">directionality</span> is determined as
     follows:</p>
@@ -13438,47 +13427,47 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
 
       <dl class="switch">
        <dt>If the element's <span data-x="concept-fe-value">value</span> contains a character of
-        bidirectional character type AL or R, and there is no character of bidirectional character
-        type L anywhere before it in the element's <span data-x="concept-fe-value">value</span></dt>
+       bidirectional character type AL or R, and there is no character of bidirectional character
+       type L anywhere before it in the element's <span data-x="concept-fe-value">value</span></dt>
        <dd><span>The directionality</span> of the element is '<span
-        data-x="concept-rtl">rtl</span>' <ref spec=BIDI>.
+       data-x="concept-rtl">rtl</span>' <ref spec=BIDI>.
 
        <dt>If the element's <span data-x="concept-fe-value">value</span> is the empty string, or if
-        the element has no parent element</dt>
+       the element has no parent element</dt>
        <dd><span>The directionality</span> of the element is '<span
-        data-x="concept-ltr">ltr</span>'.</dd>
+       data-x="concept-ltr">ltr</span>'.</dd>
 
        <dt>Otherwise</dt>
-       <dd><span>the directionality</span> of the element is the same as the element's parent
-        element's <span data-x="the directionality">directionality</span>.</dd>
-
+       <dd><span>The directionality</span> of the element is the same as the element's parent
+       element's <span data-x="the directionality">directionality</span>.</dd>
       </dl>
      </dd>
 
      <dt>Otherwise</dt>
-      <dd>
-       <p><span>The directionality</span> is determined from the element's contents as follows:</p>
-       <ol>
-        <li><p>Let <var>b</var> be the first (in <span>tree order</span>)
-         <span>bidi-available</span> <span>strong character</span>
-         found among its <code>Text</code> nodes (including their descendants)</p>
-        </li>
-        <li>
-         <p>Determine <span>the directionality</span> from  <var>b</var> as follows:</p>
-         <dl class="switch">
+     <dd>
+      <p><span>The directionality</span> is determined from the element's contents as follows:</p>
 
-          <dt>If <var>b</var> is a character is of bidirectional character type AL or R</dt>
-          <dd><span>The directionality</span> of the element is '<span
-          data-x="concept-rtl">rtl</span>'.</dd>
+      <ol>
+       <li><p>Let <var>b</var> be the first (in <span>tree order</span>) <span>bidi-available</span>
+       <span>strong character</span> found among its <code>Text</code> nodes (including their
+       descendants).</p></li>
 
-          <dt>If <var>b</var> is a character is of bidirectional character type L</dt>
-          <dd><span>The directionality</span> of the element is '<span
-          data-x="concept-ltr">ltr</span>'.</dd>
+       <li>
+        <p>Determine <span>the directionality</span> from  <var>b</var> as follows:</p>
 
-          <dt>If <var>b</var> is not found</dt>
-          <dd><span>The directionality</span> of the element is the same as if the element's <code
-          data-x="attr-dir">dir</code> attribute were not in a defined state (and the element
-          were not a <code>bdi</code> element).</dd>
+        <dl class="switch">
+         <dt>If <var>b</var> is a character is of bidirectional character type AL or R</dt>
+         <dd><span>The directionality</span> of the element is '<span
+         data-x="concept-rtl">rtl</span>'.</dd>
+
+         <dt>If <var>b</var> is a character is of bidirectional character type L</dt>
+         <dd><span>The directionality</span> of the element is '<span
+         data-x="concept-ltr">ltr</span>'.</dd>
+
+         <dt>If <var>b</var> is not found</dt>
+         <dd><span>The directionality</span> of the element is the same as if the element's <code
+         data-x="attr-dir">dir</code> attribute were not in a defined state (and the element were
+         not a <code>bdi</code> element).</dd>
         </dl>
        </li>
       </ol>
@@ -13486,35 +13475,28 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
     </dl>
    </dd>
 
-   <dt>If 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>
-
+   <dt>If 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>
    <dd>
     <p>The element's <span data-x="the directionality">directionality</span> is determined as
     follows:</p>
 
     <dl class="switch">
-      <dt>If the element is an <code>input</code> element whose
-      <code data-x="attr-input-type">type</code> attribute is in the
-      <span data-x="attr-input-type-tel">Telephone</span> state</dt>
-
-      <dd><p><span>The directionality</span> of the element is
-      '<span data-x="concept-ltr">ltr</span>'.</p></dd>
-
-      <dt>If the element has a parent element</dt>
-
-      <dd><p><span>The directionality</span> of the element is the same as its
-      parent element's
-      <span data-x="the directionality">directionality</span>.</p></dd>
-
-      <dt>Otherwise</dt>
+     <dt>If the element is an <code>input</code> element whose <code
+     data-x="attr-input-type">type</code> attribute is in the <span
+     data-x="attr-input-type-tel">Telephone</span> state</dt>
+     <dd><p><span>The directionality</span> of the element is '<span
+     data-x="concept-ltr">ltr</span>'.</p></dd>
 
-      <dd><p><span>The directionality</span> of the element is "<code
-      data-x="concept-ltr">ltr</code>".</p></dd>
+     <dt>If the element has a parent element</dt>
+     <dd><p><span>The directionality</span> of the element is the same as its parent element's <span
+     data-x="the directionality">directionality</span>.</p></dd>
 
-     </dl>
+     <dt>Otherwise</dt>
+     <dd><p><span>The directionality</span> of the element is "<code
+     data-x="concept-ltr">ltr</code>".</p></dd>
+    </dl>
    </dd>
-
   </dl>
 
   <p class="note">Since the <code data-x="attr-dir">dir</code> attribute is only defined for
@@ -13524,7 +13506,6 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
   default to '<span data-x="concept-ltr">ltr</span>'.</p>
 
   <div w-nodev>
-
    <p class="note">This attribute <a href="#bidireq">has rendering requirements involving the
    bidirectional algorithm</a>.</p>
 
@@ -13543,7 +13524,6 @@ Transport Protocol">HTTP&lt;/abbr> today.&lt;/p></code></pre> <!-- DO NOT REWRAP
 
    <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>
-
   </div>
 
   <hr>