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revision 1.18 by wakaba, Sun Oct 28 07:19:15 2007 UTC revision 1.22 by wakaba, Mon Nov 5 11:20:10 2007 UTC
# Line 10  Line 10 
10  <div class="header">  <div class="header">
11  <h1>Selectors Serialization Format for Testing (<abbr>SSFT</abbr>)  <h1>Selectors Serialization Format for Testing (<abbr>SSFT</abbr>)
12  Specification</h1>  Specification</h1>
13  <h2>Working Draft <time datetime=2007-10-28>28 October 2007</time></h2>  <h2>Working Draft <time datetime=2007-11-05>5 November 2007</time></h2>
14    
15  <dl class="versions-uri">  <dl class="versions-uri">
16  <dt>This Version</dt>  <dt>This Version</dt>
# Line 52  available at <code class="URI">&lt;<a Line 52  available at <code class="URI">&lt;<a
52  <div id="abstract" class="section">  <div id="abstract" class="section">
53  <h2>Abstract</h2>  <h2>Abstract</h2>
54    
55  <div class="ed issue">...</div>  <p>This document defines
56    <abbr title="Selectors Serialization Format for Testing">SSFT</abbr>,
57    a subset of Selectors language which is suitable for describing results
58    of Selectors parsing tests.</p>
59    
60  </div>  </div>
61    
# Line 125  to deploy that format for testing.</p> Line 128  to deploy that format for testing.</p>
128    
129  <p>The key words <q><dfn id=must><em class="rfc2119">MUST</em></dfn></q>,  <p>The key words <q><dfn id=must><em class="rfc2119">MUST</em></dfn></q>,
130  <q><dfn id=must-not><em class="rfc2119">MUST NOT</em></dfn></q>,  <q><dfn id=must-not><em class="rfc2119">MUST NOT</em></dfn></q>,
131  <q><dfn id=should><em class="rfc2119">SHOULD</em></dfn></q>,  <q><dfn id=should><em class="rfc2119">SHOULD</em></dfn></q>, and
 <q><dfn id=should-not><em class="rfc2119">SHOULD NOT</em></dfn></q>, and  
132  <q><dfn id=may><em class=rfc2119>MAY</em></dfn></q> in this  <q><dfn id=may><em class=rfc2119>MAY</em></dfn></q> in this
133  document are to be interpreted as described in  document are to be interpreted as described in
134  <a href="urn:ietf:rfc:2119"><abbr title="Request for Comments">RFC</abbr>  <a href="urn:ietf:rfc:2119"><abbr title="Request for Comments">RFC</abbr>
# Line 162  to <a href="#algorithm-serialize-a-simpl Line 164  to <a href="#algorithm-serialize-a-simpl
164  selector</a> or <a href="#algorithm-serialize-a-group-of-selectors">serialize  selector</a> or <a href="#algorithm-serialize-a-group-of-selectors">serialize
165  a group of selectors</a>.</p>  a group of selectors</a>.</p>
166    
 <div class="issue ed">  
 <p><a href="http://suika.fam.cx/gate/cvs/*checkout*/markup/html/whatpm/Whatpm/CSS/SelectorsSerializer.pm">See  
 also the reference implementation</a> for now.</p>  
 </div>  
   
167  <div class="note memo">  <div class="note memo">
168  <p>The serialized representation will not contain any comment.</p>  <p>The serialized representation will not contain any comment.</p>
169  </div>  </div>
170  <!-- TODO: link terms to Selectors -->  
171    <div class="ed issue"><p>TODO: link terms to Selectors</p></div>
172    
173  <div class=section id=serializing-tokens>  <div class=section id=serializing-tokens>
174  <h3>Serializing Tokens</h3>  <h3>Serializing Tokens</h3>
# Line 202  A</code> (<code class=char>A</code>) to Line 200  A</code> (<code class=char>A</code>) to
200  <code class=char>U+0080</code> to <code class=char>U+D7FF</code>, or  <code class=char>U+0080</code> to <code class=char>U+D7FF</code>, or
201  <code class=char>U+E000</code> to <code class=char>U+10FFFF</code> in  <code class=char>U+E000</code> to <code class=char>U+10FFFF</code> in
202  <var>n</var>, then replace it by string <code>\<var>HHHHHH</var></code>, where  <var>n</var>, then replace it by string <code>\<var>HHHHHH</var></code>, where
203  <dfn id=var-HHHHHH><var>HHHHHH</var></dfn> is the upper$B!>(Bcase zero$B!>(Bpadded  <dfn id=var-ident-HHHHHH><var>HHHHHH</var></dfn> is the upper$B!>(Bcase
204  hexadecimal representation of the character.  If the character  zero$B!>(Bpadded hexadecimal representation of the character.  If the character
205  is outside the range of <code>[<code class=char>U+0000</code>,  is outside the range of <code>[<code class=char>U+0000</code>,
206  <code class=char>U+10FFFF</code>]</code>, <var>HHHHHH</var>  <code class=char>U+10FFFF</code>]</code>, <var>HHHHHH</var>
207  <em class=rfc2119>MUST</em> be <code>FFFFFF</code>.</li>  <em class=rfc2119>MUST</em> be <code>FFFFFF</code>.</li>
# Line 255  BRACKET</code>, <code class=char>U+005D< Line 253  BRACKET</code>, <code class=char>U+005D<
253  SQUARE BRACKET</code> to <code class=char>U+D7FF</code>, or  SQUARE BRACKET</code> to <code class=char>U+D7FF</code>, or
254  <code class=char>U+E000</code> to <code class=char>U+10FFFF</code> in  <code class=char>U+E000</code> to <code class=char>U+10FFFF</code> in
255  <var>s</var>, then replace it by string <code>\<var>HHHHHH</var></code>, where  <var>s</var>, then replace it by string <code>\<var>HHHHHH</var></code>, where
256  <dfn id=var-HHHHHH><var>HHHHHH</var></dfn> is the upper$B!>(Bcase zero$B!>(Bpadded  <dfn id=var-string-HHHHHH><var>HHHHHH</var></dfn> is the upper$B!>(Bcase
257  hexadecimal representation of the character.  If the character  zero$B!>(Bpadded hexadecimal representation of the character.  If the character
258  is outside the range of <code>[<code class=char>U+0000</code>,  is outside the range of <code>[<code class=char>U+0000</code>,
259  <code class=char>U+10FFFF</code>]</code>, <var>HHHHHH</var>  <code class=char>U+10FFFF</code>]</code>, <var>HHHHHH</var>
260  <em class=rfc2119>MUST</em> be <code>FFFFFF</code>.</p></li>  <em class=rfc2119>MUST</em> be <code>FFFFFF</code>.</p></li>
# Line 296  representations are literally compared.< Line 294  representations are literally compared.<
294  It is tr/A-Z/a-z/ for now.</p>  It is tr/A-Z/a-z/ for now.</p>
295  </div>  </div>
296    
297    <p>To
298    <dfn id=algorithm-normalize-an-integer title="normalize an integer">normalize
299    an integer (<dfn id=var-int-i><var>i</var></dfn>)</dfn>, the following
300    algorithm <em class=rfc2119>MUST</em> be used:</p>
301    <ol class=algorithm>
302    <li>If <var>i</var> is equal to zero (0), return a string with only a
303    character: <code class=char>U+0030</code>
304    <code class=charname>DIGIT ZERO</code> (<code class=char>0</code>).
305    Stop the algorithm.</li>
306    <li>Let <dfn id=var-int-result><var>result</var></dfn> be an empty string.</li>
307    <li>If <var>i</var> is less than zero (0), append a
308    <code class=char>U+002D</code> <code class=charname>HYPHEN-MINUS</code>
309    (<code class=char>-</code>) character to <var>result</var>.</li>
310    <li>Append the decimal representation of the absolute value of
311    <var>i</var> to <var>result</var>.  The decimal (base$B!>(Bten) representation
312    <em class=rfc2119>MUST NOT</em> begin with a <code class=char>U+0030</code>
313    <code class=charname>DIGIT ZERO</code> (<code class=char>0</code>)
314    character.</li>
315    <li>Return <var>result</var>.</li>
316    </ol>
317    
318  </div>  </div>
319    
320    
# Line 460  the following algorithm <em class=rfc211 Line 479  the following algorithm <em class=rfc211
479            <li>Append a <code class=char>U+0028</code> <code class=charname>LEFT            <li>Append a <code class=char>U+0028</code> <code class=charname>LEFT
480            PARENTHESIS</code> (<code class=char>(</code>) character            PARENTHESIS</code> (<code class=char>(</code>) character
481            to <var>r</var>.</li>            to <var>r</var>.</li>
482            <li>Append <span class=ed>@@ normalized</span>            <li>Let <dfn id=var-a><var>a</var></dfn> be the <var>a</var>
483            integer <var>a</var> to <var>r</var>.            part of the argument.  If the argument is a keyword <code>odd</code>
484            If the argument is a keyword <code>odd</code> or <code>even</code>,            or <code>even</code>, then let <var>a</var> be <code>2</code>.
485            <var>a</var> is <code>2</code>.  If <var>a</var> and            If the <var>a</var> part with following <code>n</code> character
486            <code>n</code> is omitted, <var>a</var> is assumed as            is omitted, then let <var>a</var> be <code>0</code>.
487            <code>0</code>.  Otherwise, if <var>a</var> is omitted,            Otherwise, if only the <var>a</var> part is omitted, then
488            it is assumed as <code>1</code> (or <code>-1</code>,            let <var>a</var> be <code>1</code>.  Otherwise, if the <var>a</var>
489            if there is a <code class=char>U+002D</code>            part is <code>-</code>, then let <var>a</var> be
490            <code class=charname>HYPHEN-MINUS</code> (<code class=char>-</code>)            <code>-1</code>.</li>
491            character).</li>            <li>Let <var>a</var> be the
492              <a href="#algorithm-normalize-an-integer" title="normalize an integer">normalized
493              string representation</a> of integer <var>a</var>.</li>
494              <li>Append <var>a</var> to <var>result</var>.</li>
495            <li>Append a <code class=char>U+006E</code>            <li>Append a <code class=char>U+006E</code>
496            <code class=charname>LATIN SMALL LETTER N</code>            <code class=charname>LATIN SMALL LETTER N</code>
497            (<code class=char>n</code>) character to <var>r</var>.</li>            (<code class=char>n</code>) character to <var>r</var>.</li>
498            <li>Append <span class=ed>@@ normalized</span>            <li>Let <dfn id=var-b><var>b</var></dfn> be the <var>b</var>
499            integer <var>b</var> to <var>r</var>.            part of the argument.  If the argument is a keyword <code>odd</code>,
500            It <em class=rfc2119>MUST</em> be preceded by a sign,            then let <var>b</var> be <code>1</code>.  If the argument is a
501            either <code class=char>U+002B</code> <code class=charname>PLUS            keyword <code>even</code>, then let <var>b</var> be <code>0</code>.
502            SIGN</code> (<code class=char>+</code>) or            If the <var>b</var> part is omitted, then let <var>b</var> be
503            <code class=char>U+002D</code>            <code>0</code>.</li>
504              <li>Let <var>b</var> be the
505              <a href="#algorithm-normalize-an-integer" title="normalize an integer">normalized
506              string representation</a> of integer <var>b</var>.</li>
507              <li>If <var>b</var> does <em>not</em> start with a
508              <code class=char>U+002D</code>
509            <code class=charname>HYPHEN-MINUS</code> (<code class=char>-</code>)            <code class=charname>HYPHEN-MINUS</code> (<code class=char>-</code>)
510            character.  If the argument is a keyword <code>odd</code>,            character, then append <code class=char>U+002B</code>
511            <var>b</var> is <code>1</code>.  If the argument            <code class=charname>PLUS SIGN</code>
512            is a keyword <code>even</code>, <var>b</var> is            (<code class=char>+</code>) to <var>result</var>.</li>
513            <code>0</code>.  If <var>b</var> is omitted, it is assumed as            <li>Append <var>b</var> to <var>result</var>.</li>
           <code>0</code>.  The sign of <code>0</code>  
           <em class=rfc2119>MUST</em> be <code class=char>U+002B</code>  
           <code class=charname>PLUS SIGN</code>  
           (<code class=char>+</code>).</li>  
514            <li>Append a <code class=char>U+0029</code>            <li>Append a <code class=char>U+0029</code>
515            <code class=charname>RIGHT PARENTHESIS</code>            <code class=charname>RIGHT PARENTHESIS</code>
516            (<code class=char>)</code>) character            (<code class=char>)</code>) character
# Line 594  the following algorithm <em class=rfc211 Line 617  the following algorithm <em class=rfc211
617      (<dfn id=var-sss><var>sss</var></dfn>)</dt>      (<dfn id=var-sss><var>sss</var></dfn>)</dt>
618        <dd>        <dd>
619          <ol>          <ol>
620          <li class=ed><a href="#algorithm-serialize-a-simple-selector">Serialize          <li>If <var>sss</var> contains a universal or type selector, then
621          each simple selector</a> in <var>sss</var>.</li>          <a href="#algorithm-serialize-a-simple-selector" title="serialize a simple selector">serialize
622          <li class=ed>sort</li>          that simple selector</a> and append the result to
623            <var>result</var>.</li>
624            <li>Otherwise, i.e. if <var>sss</var> does not contain a universal or
625            type selector, then
626            <a href="#algorithm-serialize-a-simple-selector" title="serialize a simple selector">serialize
627            a simple selector <code>*</code></a> and append the result to
628            <var>result</var>.</li>
629            <li><a href="#algorithm-serialize-a-simple-selector" title="serialize a simple selector">Serialize
630            any attribute selectors</a> in <var>sss</var>, sort the results,
631            then append them to <var>result</var> in order.</li>
632            <li><a href="#algorithm-serialize-a-simple-selector" title="serialize a simple selector">Serialize
633            any class selectors</a> in <var>sss</var>, sort the results,
634            then append them to <var>result</var> in order.</li>
635            <li><a href="#algorithm-serialize-a-simple-selector" title="serialize a simple selector">Serialize
636            any <abbr>ID</abbr> selectors</a> in <var>sss</var>, sort the results,
637            then append them to <var>result</var> in order.</li>
638            <li><a href="#algorithm-serialize-a-simple-selector" title="serialize a simple selector">Serialize
639            any pseudo$B!>(Bclass selectors</a> in <var>sss</var>, sort the results,
640            then append them to <var>result</var> in order.</li>
641            <li><a href="#algorithm-serialize-a-simple-selector" title="serialize a simple selector">Serialize
642            any pseudo elements</a> in <var>sss</var>, sort the results,
643            then append them to <var>result</var> in order.</li>
644          <li>Append a <a href="#newline">newline</a> to <var>result</var>.</li>          <li>Append a <a href="#newline">newline</a> to <var>result</var>.</li>
645          </ol>          </ol>
646        </dd>        </dd>
# Line 678  representations of <a href="#simple-sele Line 722  representations of <a href="#simple-sele
722    
723  <p class=section-info>This section is <em>non$B!>(Bnormative</em>.</p>  <p class=section-info>This section is <em>non$B!>(Bnormative</em>.</p>
724    
 <div class="ed issue">  
 <p><a href="http://suika.fam.cx/gate/2007/css/parser-interface">Try demo</a>,  
 by choosing <q>Selectors</q> radio button.</p>  
   
725  <div class="example figure block">  <div class="example figure block">
726  <div class="caption">...</div>  <p>The <abbr title="Selectors Serialization Format for Testing">SSFT</abbr>
727    representation of a selector <code>p + q</code> is:</p>
728    
729  <pre><code>...</code></pre>  <pre><code>    *|p
730      + *|q
731    </code></pre>
732  </div>  </div>
733    
734    <div class="example figure block">
735    <p>The <abbr title="Selectors Serialization Format for Testing">SSFT</abbr>
736    representation of a selector <code>a#id.class1:n\ot(:Active)/*
737     comment
738    */.class2</code> is:</p>
739    
740    <pre><code>    *|a.class1.class2#id:not(
741            :active
742        )
743    </code></pre>
744    </div>
745    
746    <div class="example figure block">
747    <p>The <abbr title="Selectors Serialization Format for Testing">SSFT</abbr>
748    representation of a
749    <a href="http://www.w3.org/TR/css3-selectors/#grouping">group of selectors</a>
750    <code>a, #b, C[d^=e], .\31 23</code> is:</p>
751    
752    <pre><code>    *|a
753    ,
754        *|*#b
755    ,
756        *|C[|d^="e"]
757    ,
758        *|*.\00003123
759    </code></pre>
760  </div>  </div>
761    
762  </div>  </div>
# Line 739  by choosing <q>Selectors</q> radio butto Line 808  by choosing <q>Selectors</q> radio butto
808  <dt id=ref-HTML5>HTML5</dt>  <dt id=ref-HTML5>HTML5</dt>
809    <dd><cite><a href="http://whatwg.org/html5"><abbr>HTML</abbr> 5</a></cite>,    <dd><cite><a href="http://whatwg.org/html5"><abbr>HTML</abbr> 5</a></cite>,
810    <abbr title="Web Hypertext Application Technology Working Group">WHATWG</abbr>    <abbr title="Web Hypertext Application Technology Working Group">WHATWG</abbr>
811    Working Draft.  Work in progress.</dd>    Working Draft, <time datetime="2007-11-03">3 November 2007</time>.
812      Work in progress.</dd>
813  <dt id=ref-SAPI>SAPI</dt>  <dt id=ref-SAPI>SAPI</dt>
814    <dd><cite><a href="http://dev.w3.org/cvsweb/~checkout~/2006/webapi/selectors-api/Overview.html?rev=1.28&amp;content-type=text/html;%20charset=utf-8">Selectors <abbr>API</abbr></a></cite>,    <dd><cite><a href="http://dev.w3.org/cvsweb/~checkout~/2006/webapi/selectors-api/Overview.html?rev=1.28&amp;content-type=text/html;%20charset=utf-8">Selectors <abbr>API</abbr></a></cite>,
815    <abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft,    <abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft,
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