HTML5 Tracker

Short URL: http://html5.org/r/5678

Index: source
===================================================================
--- source	(revision 5677)
+++ source	(revision 5678)
@@ -99542,10 +99542,7 @@
   menus, and tooltips. Text from elements (either attribute values or
   the contents of elements) is expected to be rendered in a manner
   that honors <span>the directionality</span> of the element from
-  which the text was obtained. Text from scripts (e.g. the argument to
-  <code title="dom-alert">window.alert()</code>) is expected to be
-  rendered as a separate bidirectional algorithm paragraph. <a
-  href="#refsBIDI">[BIDI]</a></p>
+  which the text was obtained.</p>
 
   <div class="example">
 
@@ -99577,8 +99574,40 @@
 
   </div>
 
+  <p>A string provided by a script (e.g. the argument to <code
+  title="dom-alert">window.alert()</code>) is expected to be treated
+  as an independent set of one or more bidirectional algorithm
+  paragraphs when displayed, as defined by the bidirectional
+  algorithm, including, for instance, supporting the
+  paragraph-breaking behaviour of U+000A LINE FEED (LF) characters. <a
+  href="#refsBIDI">[BIDI]</a></p>
 
+  <div class="example">
 
+    <p>For example, consider the following script:</p>
+
+    <pre>var s;
+if (s = prompt('What is your name?')) {
+  alert(s + '! Ok, Fred, ' + s + ', and Wilma will get the car.');
+}</pre>
+
+    <p>When the user enters "<kbd>Kitty</kbd>", the user agent would
+    alert "<samp>Kitty! Ok, Fred, Kitty, and Wilma will get the
+    car.</samp>". However, if the user enters "<kbd dir="rtl"
+    lang="ar">&#x644;&#x627;&nbsp;&#x623;&#x641;&#x647;&#x645;</kbd>",
+    then the bidirectional algorithm will determine that the direction
+    of the paragraph is right-to-left, and so the output will be
+    "<samp lang=""><bdo
+    dir="rtl">&#x644;&#x627;&nbsp;&#x623;&#x641;&#x647;&#x645;!&nbsp;derF&nbsp;,kO,&nbsp;&#x644;&#x627;&nbsp;&#x623;&#x641;&#x647;&#x645;,&nbsp;rac&nbsp;eht&nbsp;teg&nbsp;lliw&nbsp;amliW&nbsp;dna.</bdo></samp>"!</p>
+
+    <p>Authors can enforce a particular interpretation by using the
+    Unicode U+200E LEFT-TO-RIGHT MARK and U+200F RIGHT-TO-LEFT MARK
+    characters.</p>
+
+  </div>
+
+
+
   <h3>Print media</h3>
 
   <p>User agents are expected to allow the user to request the

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