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<!DOCTYPE bugzilla SYSTEM "https://www.w3.org/Bugs/Public/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4"
          urlbase="https://www.w3.org/Bugs/Public/"
          
          maintainer="sysbot+bugzilla@w3.org"
>

    <bug>
          <bug_id>6390</bug_id>
          
          <creation_ts>2009-01-13 17:47:25 +0000</creation_ts>
          <short_desc>Add a note about reaching after head state and the fragment mode</short_desc>
          <delta_ts>2010-10-04 13:58:58 +0000</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>HTML WG</product>
          <component>pre-LC1 HTML5 spec (editor: Ian Hickson)</component>
          <version>unspecified</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>VERIFIED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>NoReply</keywords>
          <priority>P2</priority>
          <bug_severity>normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Henri Sivonen">hsivonen</reporter>
          <assigned_to name="Ian &apos;Hixie&apos; Hickson">ian</assigned_to>
          <cc>mike</cc>
    
    <cc>public-html-admin</cc>
    
    <cc>public-html-wg-issue-tracking</cc>
          
          <qa_contact name="HTML WG Bugzilla archive list">public-html-bugzilla</qa_contact>

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>23035</commentid>
    <comment_count>0</comment_count>
    <who name="Henri Sivonen">hsivonen</who>
    <bug_when>2009-01-13 17:47:25 +0000</bug_when>
    <thetext>In after head state, there&apos;s this:
&quot;Push the node pointed to by the head element pointer onto the stack of open elements.&quot;

The possibility of the pointer being null is not covered. I have older code that deals with the null case, because earlier the spec pushed the head pointer onto the stack in more cases. 

To save the trouble of implementors reasoning about the characteristics of the algorithm, it would be nice to add a note that the after head state cannot be reached in the fragment mode and, thus, the pointer cannot be null.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>23036</commentid>
    <comment_count>1</comment_count>
    <who name="Henri Sivonen">hsivonen</who>
    <bug_when>2009-01-13 18:07:06 +0000</bug_when>
    <thetext>Or more to the point, the after head cannot be reached without going through a mode that sets the head pointer.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>33036</commentid>
    <comment_count>2</comment_count>
    <who name="Maciej Stachowiak">mjs</who>
    <bug_when>2010-03-14 13:16:10 +0000</bug_when>
    <thetext>This bug predates the HTML Working Group Decision Policy.

If you are satisfied with the resolution of this bug, please change the state of this bug to CLOSED. If
you have additional information and would like the editor to reconsider, please reopen this bug. If you would like to escalate the issue to the full HTML Working Group, please add the TrackerRequest keyword to this bug, and suggest title and text for the tracker issue; or you may create a tracker issue yourself, if you are able to do so. For more details, see this document:
   http://dev.w3.org/html5/decision-policy/decision-policy.html

This bug is now being moved to VERIFIED. Please respond within two weeks. If this bug is not closed, reopened or escalated within two weeks, it may be marked as NoReply and will no longer be considered a pending comment.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>