and </span></a></span> </h1> <p class="darkgray font13"> <span class="sender pipe"><a href="/search?l=whatwg@lists.whatwg.org&q=from:%22Michael+Day%22" rel="nofollow"><span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name">Michael Day</span></span></a></span> <span class="date"><a href="/search?l=whatwg@lists.whatwg.org&q=date:20130513" rel="nofollow">Mon, 13 May 2013 19:36:14 -0700</a></span> </p> </div> <div itemprop="articleBody" class="msgBody"> <!--X-Body-of-Message--> <pre style="margin: 0em;"> Hi, </pre><tt>If a newline character token follows a <pre> or <textarea> start tag, it </tt><tt>is supposed to be ignored as an authoring convenience. </tt><pre style="margin: 0em;"></pre><pre> </pre><tt>However, what if a NULL character token gets in the way? Consider these </tt><tt>two cases, where "NULL" represents a literal U+0000 character: </tt><pre style="margin: 0em;"> <pre>NULL
 <textarea>NULL
 </pre><tt>For textarea, the tokenizer will be in the rcdata state, which generates </tt><tt>replacement character (U+FFFD) tokens for each NULL. So the newline will </tt><tt>not be the next token following the start tag, and should not be </tt><tt>ignored. Chrome gets this right, Firefox get this wrong, and displays </tt><tt>the replacement character *and* strips the newline. </tt><pre style="margin: 0em;"> </pre><tt>For pre, the tokenizer will be in the data state, which emits NULL </tt><tt>characters as-is. The NULL character token is then ignored by the "in </tt><tt>body" insertion mode. Does this mean it doesn't count as the next token </tt><tt>after the start tag? Both browsers seem to think so. </tt><pre style="margin: 0em;"> </pre><tt>In general, the concept of "next token" is not well defined; in fact I </tt><tt>don't think it is ever explicitly defined in the spec. If a token is </tt><tt>ignored, is it still the next token? </tt><pre style="margin: 0em;"> </pre><tt>Since this concept is only used for the specific case of ignoring </tt><tt>newlines at the start of <pre>, <listing>, and <textarea>, perhaps a </tt><tt>better mechanism could be found to describe how it should work. </tt><pre style="margin: 0em;"> Best regards, Michael -- Prince: Print with CSS! <a rel="nofollow" href="http://www.princexml.com">http://www.princexml.com</a> </pre> </div> <div class="msgButtons margintopdouble"> <ul class="overflow"> <li class="msgButtonItems"><a class="button buttonleft " accesskey="p" href="msg34396.html">Previous message</a></li> <li class="msgButtonItems textaligncenter"><a class="button" accesskey="c" href="thrd15.html#34398">View by thread</a></li> <li class="msgButtonItems textaligncenter"><a class="button" accesskey="i" href="mail15.html#34398">View by date</a></li> <li class="msgButtonItems textalignright"><a class="button buttonright " accesskey="n" href="msg34401.html">Next message</a></li> </ul> </div> <a name="tslice"></a> <div class="tSliceList margintopdouble"> <ul class="icons monospace"> <li class="icons-email tSliceCur"><span class="subject">[whatwg] Spec ambiguity and Firefox bug for newlines following...</span> <span class="sender italic">Michael Day</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg34401.html">Re: [whatwg] Spec ambiguity and Firefox bug for newlines ...</a></span> <span class="sender italic">Peter Occil</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg34405.html">Re: [whatwg] Spec ambiguity and Firefox bug for newli...</a></span> <span class="sender italic">Michael Day</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg34757.html">Re: [whatwg] Spec ambiguity and Firefox bug for n...</a></span> <span class="sender italic">Ian Hickson</span></li> </ul></li> <li class="icons-email"><span class="subject"><a href="msg34464.html">Re: [whatwg] Spec ambiguity and Firefox bug for newli...</a></span> <span class="sender italic">Ian Hickson</span></li> </ul> </ul> </ul> </div> <div class="overflow msgActions margintopdouble"> <div class="msgReply" > <h2> Reply via email to </h2> <form method="POST" action="/mailto.php"> <input type="hidden" name="subject" value="[whatwg] Spec ambiguity and Firefox bug for newlines following <pre> and <textarea>"> <input type="hidden" name="msgid" value="5191A311.9030209@yeslogic.com"> <input type="hidden" name="relpath" value="whatwg@lists.whatwg.org/msg34398.html"> <input type="submit" value=" Michael Day "> </form> </div> </div> </div> <div class="aside" role="complementary"> <div class="logo"> <a href="/"><img src="/logo.png" width=247 height=88 alt="The Mail Archive"></a> </div> <form class="overflow" action="/search" method="get"> <input type="hidden" name="l" value="whatwg@lists.whatwg.org"> <label class="hidden" for="q">Search the site</label> <input class="submittext" type="text" id="q" name="q" placeholder="Search whatwg"> <input class="submitbutton" name="submit" type="image" src="/submit.png" alt="Submit"> </form> <div class="nav margintop" id="nav" role="navigation"> <ul class="icons font16"> <li class="icons-home"><a href="/">The Mail Archive home</a></li> <li class="icons-list"><a href="/whatwg@lists.whatwg.org/">whatwg - all messages</a></li> <li class="icons-about"><a href="/whatwg@lists.whatwg.org/info.html">whatwg - about the list</a></li> <li class="icons-expand"><a href="/search?l=whatwg@lists.whatwg.org&q=subject:%22%5C%5Bwhatwg%5C%5D+Spec+ambiguity+and+Firefox+bug+for+newlines+following%09%3Cpre%3E+and+%3Ctextarea%3E%22&o=newest&f=1" title="e" id="e">Expand</a></li> <li class="icons-prev"><a href="msg34396.html" title="p">Previous message</a></li> <li class="icons-next"><a href="msg34401.html" title="n">Next message</a></li> </ul> </div> <div class="listlogo margintopdouble"> </div> <div class="margintopdouble"> </div> </div> </div> <div class="footer" role="contentinfo"> <ul> <li><a href="/">The Mail Archive home</a></li> <li><a href="/faq.html#newlist">Add your mailing list</a></li> <li><a href="/faq.html">FAQ</a></li> <li><a href="/faq.html#support">Support</a></li> <li><a href="/faq.html#privacy">Privacy</a></li> <li class="darkgray">5191A311.9030209@yeslogic.com</li> </ul> </div> </body> </html> <script>(function(){function c(){var b=a.contentDocument||a.contentWindow.document;if(b){var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'9d0cbd57dcc21ef0',t:'MTc3MTU3NzI1MA=='};var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();</script>