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<!DOCTYPE html> |
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<html lang="en" class="formal-specification status-work-in-progress"> |
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<head> |
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<title>Selectors Serialization Format for Testing (SSFT) Specification</title> |
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<link rel="stylesheet" href="http://suika.fam.cx/www/style/html/spec"> |
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<link rel="license" href="http://suika.fam.cx/c/gnu/fdl"> |
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</head> |
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<body class="has-abstract"> |
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|
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<div class="header"> |
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<h1>Selectors Serialization Format for Testing (<abbr>SSFT</abbr>) |
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Specification</h1> |
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<h2>Working Draft 25 September 2007</h2> |
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|
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<dl class="versions-uri"> |
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<dt>This Version</dt> |
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<dd><code class="URI"><<a href="http://suika.fam.cx/www/markup/selectors/ssft/ssft" |
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>http://suika.fam.cx/www/markup/selectors/ssft/ssft</a>></code></dd> |
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<dt>Latest Version</dt> |
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<dd><code class="URI"><<a href="http://suika.fam.cx/www/markup/selectors/ssft/ssft" |
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>http://suika.fam.cx/www/markup/selectors/ssft/ssft</a>></code></dd> |
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<!-- |
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<dt>Latest Working Draft</dt> |
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--> |
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<!-- <dt>Previous Version</dt> --> |
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</dl> |
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<dl class="authors" id="author"> |
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<dt>Author</dt> |
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<dd><a href="http://suika.fam.cx/~wakaba/who?" rel="author" |
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lang=ja>Wakaba</a> |
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<code class="mail"><<a href="mailto:w@suika.fam.cx" rel="author" |
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>w@suika.fam.cx</a>></code></dd> |
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</dl> |
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|
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<p class="copyright" lang="en">© 2007 <a |
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href="http://suika.fam.cx/~wakaba/who?" rel="author">Wakaba</a>. |
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Permission is granted to copy, distribute and/or modify this document |
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under the terms of the <a rel="license" |
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href="http://www.gnu.org/copyleft/fdl.html">GNU Free Documentation License</a>, |
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Version 1.2 |
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or any later version published by the <a |
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href="http://www.fsf.org/">Free Software Foundation</a>; |
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with no Invariant Sections, no Front$B!>(BCover Texts, and no Back$B!>(BCover |
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Texts. A copy of the license is |
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available at <code class="URI"><<a |
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href="http://www.gnu.org/copyleft/fdl.html" |
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rel="license">http://www.gnu.org/copyleft/fdl.html</a>></code>.</p> |
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</div> |
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|
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<div id="abstract" class="section"> |
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<h2>Abstract</h2> |
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|
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<div class="ed issue">...</div> |
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|
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</div> |
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|
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<div id="status" class="section"> |
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<h2>Status of This Document</h2> |
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|
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<p><em>This section describes the status of this document |
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at the time of its publication. Other documents |
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might supersede this document.</em></p> |
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|
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<p>This document is a working draft. |
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It might be updated, replaced, or obsoleted by |
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other documents at any time. It is inappropriate to |
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cite this document as other than <q>work in progress</q>.</p> |
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|
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<p>Comments on this document are welcome and |
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may be sent to the <a href="#author">author</a>.</p> |
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|
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<p>Translations of thie document might be available. |
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The English version of the document is the only |
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normative version.</p> |
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</div> |
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|
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<div id="introduction" class="section"> |
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<h2>Introduction</h2> |
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|
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<p>This section is <em>informative</em>.</p> |
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|
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<div class="issue ed">...</div> |
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|
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<p><a href="http://dev.w3.org/cvsweb/csswg/cssom/Overview.html">The |
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<abbr title="Cascading Style Sheets Object Model">CSSOM</abbr> |
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specification</a> |
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<cite class="bibref informative">[<a href="#bib-CSSOM">CSSOM</a>]</cite> |
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is trying to define an algorithm to |
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<a href="http://dev.w3.org/cvsweb/~checkout~/csswg/cssom/Overview.html?rev=1.55&content-type=text/html;%20charset=utf-8#serializing0">serialize |
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a group of selectors</a> for the purpose of <code>selectorText</code> |
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attribute. However, the algorithm is incomplete |
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at the time of the writing. Note that current Web browser implementations |
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of the <code>selectorText</code> attribute are consistently broken |
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in not escaping unsafe identifiers.</p> |
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|
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</div> |
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|
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<div class="section" id="terminology"> |
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<h2>Terminology</h2> |
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|
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<p>The key words <q><em class="rfc2119">MUST</em></q>, |
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<q><em class="rfc2119">MUST NOT</em></q>, |
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<q><em class="rfc2119">SHOULD</em></q>, |
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<q><em class="rfc2119">SHOULD NOT</em></q>, and |
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<q><em class=rfc2119>MAY</em></q> in this |
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document are to be interpreted as described in |
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<abbr title="Request for Comments">RFC</abbr> 2119 |
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<cite class="bibref normative">[<a href="#ref-KEYWORDS">KEYWORDS</a>]</cite>.</p> |
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</div> |
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|
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<div class="section" id="serializing"> |
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<h2>Serializing Groups of Selectors</h2> |
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|
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<div class="issue ed"> |
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<p><a href="http://suika.fam.cx/gate/cvs/*checkout*/markup/html/whatpm/Whatpm/CSS/SelectorsSerializer.pm">See the reference implementation</a> |
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for now.</p> |
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</div> |
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|
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<p><dfn id=newline>Newline</dfn> is <code class=char>U+000A</code> |
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<code class=charname>LINE FEED</code> <span class=ed>or |
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U+000D U+000A or U+000A ??</span>.</p> |
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|
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<!-- TODO: link terms to Selectors --> |
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|
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<ol> |
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<li>Let <var>result</var> an empty string.</li> |
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<li>For each selector (<var>selector</var>) in the group of selectors: |
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<ol> |
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<li>If <var>selector</var> is <em>not</em> the first selector |
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in the group of selectors, then append a <code class=char>U+002C</code> |
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<code class=charname>COMMA</code> followed by a |
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<a href="#newline">newline</a> to <var>result</var>.</li> |
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<li>Append four <code class=char>U+0020</code> |
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<code class=charname>SPACE</code> characters to <var>result</var>.</li> |
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<li>Process each sequence of simple selectors or |
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combinator in <var>selector</var> by following algorithm: |
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<dl class=switch> |
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<dt>If it is a sequence of simle selector (<var>sss</var>)</dt> |
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<dd class=ed>@@</dd> |
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<dt>If it is a combinator (<var>c</var>)</dt> |
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<dd> |
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<ol> |
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<li>Append two <code class=char>U+0020</code> |
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<code class=charname>SPACE</code> characters to <var>result</var>.</li> |
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<li> |
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<dl class=switch> |
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<dt>If <var>c</var> is descendant combinator (white space)</dt> |
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<dd>Append a <code class=char>U+0020</code> |
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<code class=charname>SPACE</code> character to |
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<var>result</var>.</dd> |
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<dt>If <var>c</var> is child combinator |
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(<code class=char>></code>)</dt> |
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<dd>Append a <code class=char>U+003E</code> |
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<code class=charname>GREATER-THAN SIGN</code> character to |
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<var>result</var>.</dd> |
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<dt>If <var>c</var> is adjacent sibling combinator |
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(<code class=char>+</code>)</dt> |
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<dd>Append a <code class=char>U+0020</code> |
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<code class=charname>SPACE</code> character to |
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<var>result</var>.</dd> |
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<dt>If <var>c</var> is general sibling combinator |
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(<code class=char>~</code>)</dt> |
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<dd>Append a <code class=char>U+007E</code> |
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<code class=charname>TILDE</code> character to |
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<var>result</var>.</dd> |
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</dl> |
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</li> |
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<li>Append a <code class=char>U+0020</code> |
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<code class=charname>SPACE</code> character to |
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<var>result</var>.</li> |
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</ol> |
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</dd> |
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</dl> |
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</ol> |
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</li> |
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<li>Then, <var>result</var> is the |
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<abbr title="Selectors Serialization Format for Testing">SFFT</abbr> |
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representation of the group of selectors.</li> |
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</ol> |
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|
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</div> |
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|
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<div class="section" id="parsing"> |
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<h2>Parsing |
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<abbr title="Selectors Serialization Format for Testing">SFFT</abbr> |
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Groups of Selectors</h2> |
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|
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<p>Since <a href="#serializing">the serializing algorithm</a> is |
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so designed that it always output a valid |
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<a href="http://www.w3.org/TR/css3-selectors/#grouping">group of |
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selectors</a>, no special parser for |
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<abbr title="Selectors Serialization Format for Testing">SFFT</abbr> |
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is necessary. Any conforming |
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<a href="http://www.w3.org/TR/css3-selectors/#grouping">group of |
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selectors</a> parser <em class=rfc2119>MAY</em> be used |
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to parse <abbr title="Selectors Serialization Format for Testing">SFFT</abbr> |
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groups of selectors.</p> |
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</div> |
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|
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<div class="section" id="examples"> |
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<h2>Examples</h2> |
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|
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<p>This section is <em>informative</em>.</p> |
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|
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<div class="ed issue"> |
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<p><a href="http://suika.fam.cx/gate/2007/css/parser-interface">Try demo</a>, |
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by choosing <q>Selectors</q> radio button.</a></p> |
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|
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<div class="example figure block"> |
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<div class="caption">...</div> |
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|
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<pre><code>...</code></pre> |
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</div> |
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|
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</div> |
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|
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</div> |
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|
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<div id="references" class="section reference"> |
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<h2>References</h1> |
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|
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<div id="normative-references" class="section normative reference"> |
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<h3>Normative References</h3> |
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|
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<dl> |
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<dt id="ref-KEYWORDS">KEYWORDS</dt> |
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<dd><cite><a href="urn:ietf:rfc:2119">Key words for use in |
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<abbr>RFCs</abbr> to Indicate Requirement Levels</a></cite>, |
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<abbr title="Internet Engineering Task Force">IETF</abbr> |
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<a href="urn:ietf:bcp:14"><abbr title="Best Current Practice">BCP</abbr> |
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14</a>, <abbr title="Request for Comments">RFC</abbr> 2119, March 1997. |
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This version of the specification is referenced</dd> |
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<dt id=ref-SELECTORS>SELECTORS</dt> |
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<dd><a href="http://www.w3.org/TR/2005/WD-css3-selectors-20051215"><cite>Selectors</cite></a>, |
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<abbr title="World Wide Web Consortium">W3C</abbr> Working Draft, |
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15 December 2005. Work in progress. |
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<a href="http://www.w3.org/TR/css3-selectors">The latest version</a> |
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of the specification is referenced.</dd> |
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</dl> |
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</div> |
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|
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<div id="informative-references" class="section informative reference"> |
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<h3>Informative References</h3> |
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|
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<dl> |
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<dt id=ref-CSSOM>CSSOM</dt> |
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<dd><cite><a href="http://dev.w3.org/cvsweb/~checkout~/csswg/cssom/Overview.html?rev=1.55&content-type=text/html;%20charset=utf-8">Cascading |
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Style Sheets Object Model (<abbr>CSSOM</abbr>)</a></cite>, |
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<abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft, |
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18 June 2007. Work in progress. The latest Editor's Draft |
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of the specification is available at |
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<code class=uri><<a href="http://dev.w3.org/csswg/cssom/Overview.html">http://dev.w3.org/csswg/cssom/Overview.html</a>></code>.</dd> |
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</dl> |
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</div> |
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|
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</div> |
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</body> |
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</html> |
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