css3-values/Overview.html

changeset 3292
324c6ef7c447
parent 3291
8e1babb965e4
child 3293
c38cec6b116e
     1.1 --- a/css3-values/Overview.html	Wed Aug 10 23:44:59 2011 +0000
     1.2 +++ b/css3-values/Overview.html	Wed Aug 10 23:45:29 2011 +0000
     1.3 @@ -165,14 +165,12 @@
     1.4     <li><a href="#syntax-and-terminology"><span class=secno>3. </span>Syntax
     1.5      and terminology</a>
     1.6      <ul class=toc>
     1.7 -     <li><a href="#strings"><span class=secno>3.1. </span>Strings</a>
     1.8 -
     1.9 -     <li><a href="#functional-notation"><span class=secno>3.2.
    1.10 +     <li><a href="#functional-notation"><span class=secno>3.1.
    1.11        </span>Functional notation</a>
    1.12      </ul>
    1.13  
    1.14 -   <li><a href="#idents"><span class=secno>4. </span> Keywords and
    1.15 -    Identifiers</a>
    1.16 +   <li><a href="#textual-values"><span class=secno>4. </span> Textual Data
    1.17 +    Types</a>
    1.18      <ul class=toc>
    1.19       <li><a href="#keywords"><span class=secno>4.1. </span> Pre-defined
    1.20        Keywords</a>
    1.21 @@ -185,6 +183,12 @@
    1.22       <li><a href="#identifiers"><span class=secno>4.2. </span> User-defined
    1.23        Identifiers: the &lsquo;<code
    1.24        class=css>&lt;identifier&gt;</code>&rsquo; type</a>
    1.25 +
    1.26 +     <li><a href="#strings"><span class=secno>4.3. </span> Quoted Strings:
    1.27 +      the &lsquo;<code class=css>&lt;string&gt;</code>&rsquo; type</a>
    1.28 +
    1.29 +     <li><a href="#urls"><span class=secno>4.4. </span> Resource Locators:
    1.30 +      the &lsquo;<code class=css>&lt;url&gt;</code>&rsquo; type</a>
    1.31      </ul>
    1.32  
    1.33     <li><a href="#numeric-types"><span class=secno>5. </span> Numeric Data
    1.34 @@ -251,29 +255,24 @@
    1.35          class=property>max</code>&rsquo; functions</a>
    1.36        </ul>
    1.37  
    1.38 -     <li><a href="#ltstringgt"><span class=secno>7.4.
    1.39 -      </span>&lt;string&gt;</a>
    1.40 -
    1.41 -     <li><a href="#ltcolorgt"><span class=secno>7.5. </span>&lt;color&gt;</a>
    1.42 +     <li><a href="#ltcolorgt"><span class=secno>7.4. </span>&lt;color&gt;</a>
    1.43        
    1.44  
    1.45 -     <li><a href="#ltattrgt"><span class=secno>7.6. </span>&lt;attr&gt;</a>
    1.46 -
    1.47 -     <li><a href="#uris"><span class=secno>7.7. </span>&lt;url&gt;</a>
    1.48 -
    1.49 -     <li><a href="#ltimagegt"><span class=secno>7.8. </span>&lt;image&gt;</a>
    1.50 +     <li><a href="#ltattrgt"><span class=secno>7.5. </span>&lt;attr&gt;</a>
    1.51 +
    1.52 +     <li><a href="#ltimagegt"><span class=secno>7.6. </span>&lt;image&gt;</a>
    1.53        
    1.54  
    1.55 -     <li><a href="#ltfractiongt"><span class=secno>7.9.
    1.56 +     <li><a href="#ltfractiongt"><span class=secno>7.7.
    1.57        </span>&lt;fraction&gt;</a>
    1.58        <ul class=toc>
    1.59 -       <li><a href="#the-fr-unit"><span class=secno>7.9.1. </span>The
    1.60 +       <li><a href="#the-fr-unit"><span class=secno>7.7.1. </span>The
    1.61          &lsquo;<code class=property>fr</code>&rsquo; unit</a>
    1.62        </ul>
    1.63  
    1.64 -     <li><a href="#ltgridgt"><span class=secno>7.10. </span>&lt;grid&gt;</a>
    1.65 +     <li><a href="#ltgridgt"><span class=secno>7.8. </span>&lt;grid&gt;</a>
    1.66        <ul class=toc>
    1.67 -       <li><a href="#the-gr-unit"><span class=secno>7.10.1. </span>The
    1.68 +       <li><a href="#the-gr-unit"><span class=secno>7.8.1. </span>The
    1.69          &lsquo;<code class=property>gr</code>&rsquo; unit</a>
    1.70        </ul>
    1.71      </ul>
    1.72 @@ -544,46 +543,7 @@
    1.73    <p>The generic data types described in the next sections use some common
    1.74     syntactic building blocks and terms that are described in this section.
    1.75  
    1.76 -  <h3 id=strings><span class=secno>3.1. </span>Strings</h3>
    1.77 -
    1.78 -  <p>A <dfn id=string>string</dfn> is a sequence of characters enclosed by
    1.79 -   double quotes or single quotes. Double quotes cannot occur inside double
    1.80 -   quotes, unless escaped (as &lsquo;<code class=css>\"</code>&rsquo; or as
    1.81 -   &lsquo;<code class=css>\22</code>&rsquo;). Analogously for single quotes
    1.82 -   ("\&lsquo;<code class=css>" or "\27").<!--"--> </code>
    1.83 -
    1.84 -  <div class=example>
    1.85 -   <pre>
    1.86 -content: "this is a &rsquo;string'.";
    1.87 -content: "this is a \"string\".";
    1.88 -content: &lsquo;<code class=css>this is a "string".</code>&rsquo;;
    1.89 -content: &lsquo;<code class=css>this is a \</code>&rsquo;string\&lsquo;<code class=css>.</code>&rsquo;;
    1.90 -</pre>
    1.91 -  </div>
    1.92 -
    1.93 -  <p>A string cannot directly contain a <span class=index
    1.94 -   id=newline>newline</span>. To include a newline in a string, use the
    1.95 -   escape "\A" (hexadecimal A is the line feed character in Unicode (U+000A),
    1.96 -   but represents the generic notion of "newline" in CSS). See the <span
    1.97 -   class=property>&lsquo;<code class=property>content</code>&rsquo;</span>
    1.98 -   property for an example.
    1.99 -
   1.100 -  <p>It is possible to break strings over several lines, for aesthetic or
   1.101 -   other reasons, but in such a case the newline itself has to be escaped
   1.102 -   with a backslash (\). The newline is subsequently removed from the string.
   1.103 -   For instance, the following two selectors are exactly the same:
   1.104 -
   1.105 -  <div class=example>
   1.106 -   <p style="display:none">Example(s):</p>
   1.107 -
   1.108 -   <pre>
   1.109 -a[title="a not s\
   1.110 -o very long title"] {/*...*/}
   1.111 -a[title="a not so very long title"] {/*...*/}
   1.112 -</pre>
   1.113 -  </div>
   1.114 -
   1.115 -  <h3 id=functional-notation><span class=secno>3.2. </span>Functional
   1.116 +  <h3 id=functional-notation><span class=secno>3.1. </span>Functional
   1.117     notation</h3>
   1.118  
   1.119    <p>Some values use a <dfn id=functional-notation0>functional notation</dfn>
   1.120 @@ -604,7 +564,7 @@
   1.121     that is not a compound value is a <dfn id=simple-value>simple value</dfn>.
   1.122     
   1.123  
   1.124 -  <h2 id=idents><span class=secno>4. </span> Keywords and Identifiers</h2>
   1.125 +  <h2 id=textual-values><span class=secno>4. </span> Textual Data Types</h2>
   1.126  
   1.127    <p>An <dfn id=identifier>identifier</dfn> is a sequence of characters
   1.128     conforming to the <code>IDENT</code> token in the <a
   1.129 @@ -684,6 +644,115 @@
   1.130     class=css>EXAMPLE</code>&rsquo; are two different, unrelated user-defined
   1.131     identifiers).
   1.132  
   1.133 +  <h3 id=strings><span class=secno>4.3. </span> Quoted Strings: the &lsquo;<a
   1.134 +   href="#string-value"><code class=css>&lt;string&gt;</code></a>&rsquo; type</h3>
   1.135 +
   1.136 +  <p>Strings are denoted by <dfn
   1.137 +   id=string-value><code>&lt;string&gt;</code></dfn> and consist of a
   1.138 +   sequence of characters delimited by double quotes or single quotes. They
   1.139 +   correspond to the <code>STRING</code> token in the <a
   1.140 +   href="http://www.w3.org/TR/CSS21/syndata.html#tokenization">grammar</a>.
   1.141 +   <a href="#CSS21" rel=biblioentry>[CSS21]<!--{{!CSS21}}--></a>
   1.142 +
   1.143 +  <div class=example>
   1.144 +   <p>Double quotes cannot occur inside double quotes, unless escaped (as
   1.145 +    &lsquo;<code class=css>\"</code>&rsquo; or as &lsquo;<code
   1.146 +    class=css>\22</code>&rsquo;). Analogously for single quotes
   1.147 +    ("\&lsquo;<code class=css>" or "\27"). </code>
   1.148 +
   1.149 +   <pre>
   1.150 +<!-- -->content: "this is a &rsquo;string'.";
   1.151 +<!-- -->content: "this is a \"string\".";
   1.152 +<!-- -->content: &lsquo;<code class=css>this is a "string".</code>&rsquo;;
   1.153 +<!-- -->content: &lsquo;<code class=css>this is a \</code>&rsquo;string\&lsquo;<code class=css>.</code>&rsquo;;</pre>
   1.154 +  </div>
   1.155 +
   1.156 +  <p>It is possible to break strings over several lines, for aesthetic or
   1.157 +   other reasons, but in such a case the newline itself has to be escaped
   1.158 +   with a backslash (\). The newline is subsequently removed from the string.
   1.159 +   For instance, the following two selectors are exactly the same:
   1.160 +
   1.161 +  <div class=example>
   1.162 +   <p style="display:none">Example(s):</p>
   1.163 +
   1.164 +   <pre>
   1.165 +<!-- -->a[title="a not s\
   1.166 +<!-- -->o very long title"] {/*...*/}
   1.167 +<!-- -->a[title="a not so very long title"] {/*...*/}</pre>
   1.168 +  </div>
   1.169 +
   1.170 +  <p>Since a string cannot directly represent a newline, to include a newline
   1.171 +   in a string, use the escape "\A". (Hexadecimal A is the line feed
   1.172 +   character in Unicode (U+000A), but represents the generic notion of
   1.173 +   "newline" in CSS.)
   1.174 +
   1.175 +  <h3 id=urls><span class=secno>4.4. </span> Resource Locators: the &lsquo;<a
   1.176 +   href="#url-value"><code class=css>&lt;url&gt;</code></a>&rsquo; type</h3>
   1.177 +
   1.178 +  <p>A <dfn id=url>URL</dfn> is a pointer to a resource and is a <a
   1.179 +   href="http://www.w3.org/TR/CSS21/syndata.html#uri">specially-parsed</a> <a
   1.180 +   href="#functional-notation">functional notation</a> denoted by <dfn
   1.181 +   id=url-value><code>&lt;url&gt;</code></dfn>. It corresponds to the
   1.182 +   <code>URI</code> token in the <a
   1.183 +   href="http://www.w3.org/TR/CSS21/syndata.html#tokenization">grammar</a>.
   1.184 +   <a href="#CSS21" rel=biblioentry>[CSS21]<!--{{!CSS21}}--></a>
   1.185 +
   1.186 +  <div class=example>
   1.187 +   <p>Below is an example of a URL being used as a background image:
   1.188 +
   1.189 +   <pre>body { background: url("http://www.example.com/pinkish.gif") }</pre>
   1.190 +
   1.191 +   <p>The same example can be written without quotes:
   1.192 +
   1.193 +   <pre>body { background: url(http://www.example.com/pinkish.gif) }</pre>
   1.194 +  </div>
   1.195 +
   1.196 +  <p class=note>Note that in some CSS syntactic contexts (as defined by that
   1.197 +   context), a URL can be represented as a <a
   1.198 +   href="#string-value"><code>&lt;string&gt;</code></a> rather than by <a
   1.199 +   href="#url-value"><code>&lt;URL&gt;</code></a>. An example of this is the
   1.200 +   <a href="http://www.w3.org/TR/CSS21/cascade.html#at-import">&lsquo;<code
   1.201 +   class=css>@import</code>&rsquo; rule</a>.
   1.202 +
   1.203 +  <p>Parentheses, whitespace characters, single quotes (&apos;) and double
   1.204 +   quotes (") appearing in a URL must be escaped with a backslash so that the
   1.205 +   resulting value is a valid <a href="#url"><code>URL</code></a> token, e.g.
   1.206 +   &lsquo;<code class=css>url(open\(parens)</code>&rsquo;, &lsquo;<code
   1.207 +   class=css>url(close\)parens)</code>&rsquo;. Depending on the type of URL,
   1.208 +   it might also be possible to write these characters as URI-escapes (where
   1.209 +   <code>(</code> = <code>%28</code>, <code>)</code> = <code>%29</code>,
   1.210 +   etc.) as described in <a href="#URI"
   1.211 +   rel=biblioentry>[URI]<!--{{URI}}--></a>. Alternatively a URL containing
   1.212 +   such characters may be represented as a quoted <a
   1.213 +   href="#string">string</a> within the &lsquo;<a href="#url"><code
   1.214 +   class=css>url()</code></a>&rsquo; notation.
   1.215 +
   1.216 +  <p>In order to create modular style sheets that are not dependent on the
   1.217 +   absolute location of a resource, authors should use relative URIs.
   1.218 +   Relative URIs (as defined in [[RFC3986]]) are resolved to full URIs using
   1.219 +   a base URI. RFC&nbsp;3986, section&nbsp;3, defines the normative algorithm
   1.220 +   for this process. For CSS style sheets, the base URI is that of the style
   1.221 +   sheet, not that of the source document.
   1.222 +
   1.223 +  <div class=example>
   1.224 +   <p>For example, suppose the following rule:
   1.225 +
   1.226 +   <pre>body { background: url("tile.png") }</pre>
   1.227 +
   1.228 +   <p>is located in a style sheet designated by the URL:</p>
   1.229 +
   1.230 +   <pre>http://www.example.org/style/basic.css</pre>
   1.231 +
   1.232 +   <p>The background of the source document's <code>&lt;body&gt;</code> will
   1.233 +    be tiled with whatever image is described by the resource designated by
   1.234 +    the URL:
   1.235 +
   1.236 +   <pre>http://www.example.org/style/tile.png</pre>
   1.237 +
   1.238 +   <p>The same image will be used regardless of the URL of the source
   1.239 +    document containing the <code>&lt;body&lt;</code>.
   1.240 +  </div>
   1.241 +
   1.242    <h2 id=numeric-types><span class=secno>5. </span> Numeric Data Types</h2>
   1.243  
   1.244    <h3 id=integers><span class=secno>5.1. </span> Integers: the &lsquo;<a
   1.245 @@ -1263,12 +1332,7 @@
   1.246       both auto and fixed layout tables are treated as if &lsquo;<code
   1.247       class=property>auto</code>&rsquo; had been specified.
   1.248  
   1.249 -    <h3 id=ltstringgt><span class=secno>7.4. </span>&lt;string&gt;</h3>
   1.250 -
   1.251 -    <p>Strings are denoted by <dfn id=ltstringgt0>&lt;string&gt;</dfn> in the
   1.252 -     value definitions.
   1.253 -
   1.254 -    <h3 id=ltcolorgt><span class=secno>7.5. </span>&lt;color&gt;</h3>
   1.255 +    <h3 id=ltcolorgt><span class=secno>7.4. </span>&lt;color&gt;</h3>
   1.256  
   1.257      <p><em>This section is not normative. The CSS3 Color module <a
   1.258       href="#CSS3COLOR" rel=biblioentry>[CSS3COLOR]<!--{{!CSS3COLOR}}--></a>
   1.259 @@ -1290,7 +1354,7 @@
   1.260  </pre>
   1.261      </div>
   1.262  
   1.263 -    <h3 id=ltattrgt><span class=secno>7.6. </span>&lt;attr&gt;</h3>
   1.264 +    <h3 id=ltattrgt><span class=secno>7.5. </span>&lt;attr&gt;</h3>
   1.265  
   1.266      <p class=issue>Describe the feature fully here, not just a delta from CSS
   1.267       21.
   1.268 @@ -1351,11 +1415,11 @@
   1.269       <dt>url
   1.270  
   1.271       <dd>The attribute value will be interpreted as the URI part of a
   1.272 -      &lsquo;<code class=css>url()</code>&rsquo; expression. The default is a
   1.273 -      UA-dependent URI defined to point to a non-existent document with a
   1.274 -      generic error condition. (i.e. it shouldn't be an FTP URI that causes a
   1.275 -      DNS error, or an HTTP URI that results in a 404, it should be a
   1.276 -      nondescript error condition.)
   1.277 +      &lsquo;<a href="#url"><code class=css>url()</code></a>&rsquo;
   1.278 +      expression. The default is a UA-dependent URI defined to point to a
   1.279 +      non-existent document with a generic error condition. (i.e. it
   1.280 +      shouldn't be an FTP URI that causes a DNS error, or an HTTP URI that
   1.281 +      results in a 404, it should be a nondescript error condition.)
   1.282  
   1.283       <dt>integer
   1.284  
   1.285 @@ -1390,8 +1454,8 @@
   1.286      <p class=issue>Should there also be a "keyword" type to, e.g., support
   1.287       &lsquo;<code class=css>float: attr(align)</code>&rsquo;</p>
   1.288  
   1.289 -    <p>If the &lt;type> is missing, &lsquo;<a href="#string"><code
   1.290 -     class=property>string</code></a>&rsquo; is implied.
   1.291 +    <p>If the &lt;type> is missing, &lsquo;<code
   1.292 +     class=property>string</code>&rsquo; is implied.
   1.293  
   1.294      <p class=issue>Ideally, it shouldn't be necessary to specify the type if
   1.295       it is obvious. For example, this should be valid: "<tt>background-image:
   1.296 @@ -1489,81 +1553,7 @@
   1.297       expect UAs to honor this rule for HTML documents?: <tt>P[COLOR] { color:
   1.298       attr(COLOR, color) }</tt>.
   1.299  
   1.300 -    <h3 id=uris><span class=secno>7.7. </span>&lt;url&gt;</h3>
   1.301 -
   1.302 -    <p><dfn id=urls title="Uniform Resource Locator (URL)|URL (Uniform
   1.303 -     Resource Locator)">URLs</dfn> (Uniform Resource Locators, see <a
   1.304 -     href="#RFC1738" rel=biblioentry>[RFC1738]<!--{{RFC1738}}--></a> and <a
   1.305 -     href="#RFC1808" rel=biblioentry>[RFC1808]<!--{{RFC1808}}--></a>) provide
   1.306 -     the address of a resource on the Web. An alternative and more general
   1.307 -     term is <dfn id=uris0 title="Resource Identifier (URI)|URI (Uniform
   1.308 -     Resource Identifier)">URIs</dfn> (Uniform Resource Identifiers, see
   1.309 -     [!URI]). This specification uses the term URI.</p>
   1.310 -
   1.311 -    <p>For historical reasons, the name of the URI function is "url". The URI
   1.312 -     function takes one URI as the argument. The URI may be quoted with
   1.313 -     single quote (&apos;) or double quote (&quot;) characters. If quoted,
   1.314 -     the two quote characters must be the same.
   1.315 -
   1.316 -    <div class=example>
   1.317 -     <p style="display:none">Example(s):</p>
   1.318 -
   1.319 -     <pre>
   1.320 -body { background: url("http://www.example.com/pinkish.gif") }
   1.321 -</pre>
   1.322 -    </div>
   1.323 -
   1.324 -    <div class=example>
   1.325 -     <p>An example without quotes:</p>
   1.326 -
   1.327 -     <pre>
   1.328 -li { list-style: url(http://www.example.com/redball.png) disc }
   1.329 -</pre>
   1.330 -    </div>
   1.331 -
   1.332 -    <p>Parentheses, commas, whitespace characters, single quotes
   1.333 -     (&lsquo;<code class=css>) and double quotes ("<!--"-->) appearing in a
   1.334 -     URI must be escaped with a backslash: </code>&rsquo;\(&lsquo;<code
   1.335 -     class=css>, </code>&rsquo;\)&lsquo;<code class=css>,
   1.336 -     </code>&rsquo;\,&lsquo;<code class=css>.</code></p>
   1.337 -
   1.338 -    <p>Depending on the type of URI, it might also be possible to write the
   1.339 -     above characters as URI-escapes (where "(" = %28, ")" = %29, etc.) as
   1.340 -     described in [!URI].</p>
   1.341 -
   1.342 -    <p>In order to create modular style sheets that are not dependent on the
   1.343 -     absolute location of a resource, authors should use relative URIs.
   1.344 -     Relative URIs (as defined in <a href="#RFC1808"
   1.345 -     rel=biblioentry>[RFC1808]<!--{{RFC1808}}--></a>) are resolved to full
   1.346 -     URIs using a base URI. RFC&nbsp;1808, section&nbsp;3, defines the
   1.347 -     normative algorithm for this process. For CSS style sheets, the base URI
   1.348 -     is that of the style sheet, not that of the source document.</p>
   1.349 -
   1.350 -    <div class=example>
   1.351 -     <p>For example, suppose the following rule:</p>
   1.352 -
   1.353 -     <pre>
   1.354 -body { background: url("yellow") }
   1.355 -</pre>
   1.356 -
   1.357 -     <p>is located in a style sheet designated by the URI:</p>
   1.358 -
   1.359 -     <pre>
   1.360 -http://www.example.org/style/basic.css
   1.361 -</pre>
   1.362 -
   1.363 -     <p>The background of the source document&rsquo;s BODY will be tiled with
   1.364 -      whatever image is described by the resource designated by the URI</p>
   1.365 -
   1.366 -     <pre>
   1.367 -http://www.example.org/style/yellow
   1.368 -</pre>
   1.369 -    </div>
   1.370 -
   1.371 -    <p>User agents may vary in how they handle URIs that designate
   1.372 -     unavailable or inapplicable resources.</p>
   1.373 -
   1.374 -    <h3 id=ltimagegt><span class=secno>7.8. </span>&lt;image&gt;</h3>
   1.375 +    <h3 id=ltimagegt><span class=secno>7.6. </span>&lt;image&gt;</h3>
   1.376  
   1.377      <p>TBD. <!--
   1.378  <h4>The 'counter' function</h4>
   1.379 @@ -1601,13 +1591,13 @@
   1.380  -->
   1.381       
   1.382  
   1.383 -    <h3 id=ltfractiongt><span class=secno>7.9. </span>&lt;fraction&gt;</h3>
   1.384 +    <h3 id=ltfractiongt><span class=secno>7.7. </span>&lt;fraction&gt;</h3>
   1.385  
   1.386      <p>Some properties accept a series of length values that, in sum, should
   1.387       add up to a certain length. To take up any remaining space, fractions
   1.388       can be used.
   1.389  
   1.390 -    <h4 id=the-fr-unit><span class=secno>7.9.1. </span>The &lsquo;<code
   1.391 +    <h4 id=the-fr-unit><span class=secno>7.7.1. </span>The &lsquo;<code
   1.392       class=property>fr</code>&rsquo; unit</h4>
   1.393  
   1.394      <p>The <dfn id=fr title="fr (unit)">fr</dfn> unit is used to distribute
   1.395 @@ -1626,7 +1616,7 @@
   1.396      <p>The &lsquo;<code class=css>fr</code>&rsquo; unit can only be used in
   1.397       combination with regular length units.
   1.398  
   1.399 -    <h3 id=ltgridgt><span class=secno>7.10. </span>&lt;grid&gt;</h3>
   1.400 +    <h3 id=ltgridgt><span class=secno>7.8. </span>&lt;grid&gt;</h3>
   1.401  
   1.402      <p>A grid is a set of invisible vertical and horizontal lines that can be
   1.403       used to align content. In CSS3, a grid lines can be established
   1.404 @@ -1636,7 +1626,7 @@
   1.405       distance between grid lines can be referred to by the &lsquo;<code
   1.406       class=css>gr</code>&rsquo; unit.
   1.407  
   1.408 -    <h4 id=the-gr-unit><span class=secno>7.10.1. </span>The &lsquo;<code
   1.409 +    <h4 id=the-gr-unit><span class=secno>7.8.1. </span>The &lsquo;<code
   1.410       class=property>gr</code>&rsquo; unit</h4>
   1.411  
   1.412      <p>The <dfn id=gr title="gr (unit)">gr</dfn> unit is used to position
   1.413 @@ -2069,22 +2059,13 @@
   1.414        </dd>
   1.415       <!---->
   1.416  
   1.417 -     <dt id=RFC1738>[RFC1738]
   1.418 -
   1.419 -     <dd>T. Berners-Lee; L. Masinter; M. McCahill. <a
   1.420 -      href="http://www.ietf.org/rfc/rfc1738.txt"><cite>Uniform Resource
   1.421 -      Locators (URL).</cite></a> December 1994. Internet RFC 1738. URL: <a
   1.422 -      href="http://www.ietf.org/rfc/rfc1738.txt">http://www.ietf.org/rfc/rfc1738.txt</a>
   1.423 -      </dd>
   1.424 -     <!---->
   1.425 -
   1.426 -     <dt id=RFC1808>[RFC1808]
   1.427 -
   1.428 -     <dd>R. Fielding. <a
   1.429 -      href="http://www.ietf.org/rfc/rfc1808.txt"><cite>Relative Uniform
   1.430 -      Resource Locators.</cite></a> June 1995. Internet RFC 1808. (Obsoleted
   1.431 -      by RFC 3986) URL: <a
   1.432 -      href="http://www.ietf.org/rfc/rfc1808.txt">http://www.ietf.org/rfc/rfc1808.txt</a>
   1.433 +     <dt id=URI>[URI]
   1.434 +
   1.435 +     <dd>T. Berners-Lee; R. Fielding; L. Masinter. <a
   1.436 +      href="http://www.ietf.org/rfc/rfc3986.txt"><cite>Uniform Resource
   1.437 +      Identifiers (URI): generic syntax.</cite></a> January 2005. Internet
   1.438 +      RFC 3986. URL: <a
   1.439 +      href="http://www.ietf.org/rfc/rfc3986.txt">http://www.ietf.org/rfc/rfc3986.txt</a>
   1.440        </dd>
   1.441       <!---->
   1.442      </dl>
   1.443 @@ -2105,13 +2086,13 @@
   1.444  
   1.445       <li>ch, <a href="#ch-unit" title=ch><strong>6.1.1.</strong></a>
   1.446  
   1.447 -     <li>color, <a href="#color" title=color><strong>7.5.</strong></a>
   1.448 +     <li>color, <a href="#color" title=color><strong>7.4.</strong></a>
   1.449  
   1.450       <li>&lt;color&gt;, <a href="#ltcolorgt0"
   1.451 -      title="&lt;color&gt;"><strong>7.5.</strong></a>
   1.452 +      title="&lt;color&gt;"><strong>7.4.</strong></a>
   1.453  
   1.454       <li>compound value, <a href="#compound-value" title="compound
   1.455 -      value"><strong>3.2.</strong></a>
   1.456 +      value"><strong>3.1.</strong></a>
   1.457  
   1.458       <li>computed value, <a href="#computed-value" title="computed
   1.459        value"><strong>8.2.</strong></a>
   1.460 @@ -2129,15 +2110,15 @@
   1.461        title="&lt;frequency&gt;"><strong>7.3.</strong></a>
   1.462  
   1.463       <li>fr (unit), <a href="#fr" title="fr
   1.464 -      (unit)"><strong>7.9.1.</strong></a>
   1.465 +      (unit)"><strong>7.7.1.</strong></a>
   1.466  
   1.467       <li>functional notation, <a href="#functional-notation0"
   1.468 -      title="functional notation"><strong>3.2.</strong></a>
   1.469 +      title="functional notation"><strong>3.1.</strong></a>
   1.470  
   1.471       <li>grad, <a href="#grad" title=grad><strong>7.1.</strong></a>
   1.472  
   1.473       <li>gr (unit), <a href="#gr" title="gr
   1.474 -      (unit)"><strong>7.10.1.</strong></a>
   1.475 +      (unit)"><strong>7.8.1.</strong></a>
   1.476  
   1.477       <li>Hz, <a href="#hz" title=Hz><strong>7.3.</strong></a>
   1.478  
   1.479 @@ -2171,8 +2152,6 @@
   1.480  
   1.481       <li>ms, <a href="#ms" title=ms><strong>7.2.</strong></a>
   1.482  
   1.483 -     <li>newline, <a href="#newline" title=newline>3.1.</a>
   1.484 -
   1.485       <li>number, <a href="#number" title=number><strong>5.2.</strong></a>
   1.486  
   1.487       <li><a href="#number-value"><code>&lt;number&gt;</code></a>, <a
   1.488 @@ -2192,35 +2171,26 @@
   1.489  
   1.490       <li>rem, <a href="#rem-unit" title=rem><strong>6.1.1.</strong></a>
   1.491  
   1.492 -     <li>Resource Identifier (URI), <a href="#uris0" title="Resource
   1.493 -      Identifier (URI)"><strong>7.7.</strong></a>
   1.494 -
   1.495       <li>s, <a href="#s" title=s><strong>7.2.</strong></a>
   1.496  
   1.497       <li>simple value, <a href="#simple-value" title="simple
   1.498 -      value"><strong>3.2.</strong></a>
   1.499 +      value"><strong>3.1.</strong></a>
   1.500  
   1.501       <li>specified value, <a href="#specified-value" title="specified
   1.502        value"><strong>8.1.</strong></a>
   1.503  
   1.504 -     <li>string, <a href="#string" title=string><strong>3.1.</strong></a>
   1.505 -
   1.506 -     <li>&lt;string&gt;, <a href="#ltstringgt0"
   1.507 -      title="&lt;string&gt;"><strong>7.4.</strong></a>
   1.508 +     <li><a href="#string-value"><code>&lt;string&gt;</code></a>, <a
   1.509 +      href="#string-value" title="&lt;string&gt;"><strong>4.3.</strong></a>
   1.510  
   1.511       <li>&lt;time&gt;, <a href="#time-value"
   1.512        title="&lt;time&gt;"><strong>7.2.</strong></a>
   1.513  
   1.514       <li>turn, <a href="#turn" title=turn><strong>7.1.</strong></a>
   1.515  
   1.516 -     <li>Uniform Resource Locator (URL), <a href="#urls" title="Uniform
   1.517 -      Resource Locator (URL)"><strong>7.7.</strong></a>
   1.518 -
   1.519 -     <li>URI (Uniform Resource Identifier), <a href="#uris0" title="URI
   1.520 -      (Uniform Resource Identifier)"><strong>7.7.</strong></a>
   1.521 -
   1.522 -     <li>URL (Uniform Resource Locator), <a href="#urls" title="URL (Uniform
   1.523 -      Resource Locator)"><strong>7.7.</strong></a>
   1.524 +     <li>URL, <a href="#url" title=URL><strong>4.4.</strong></a>
   1.525 +
   1.526 +     <li><a href="#url-value"><code>&lt;url&gt;</code></a>, <a
   1.527 +      href="#url-value" title="&lt;url&gt;"><strong>4.4.</strong></a>
   1.528  
   1.529       <li>used value, <a href="#used-value" title="used
   1.530        value"><strong>8.3.</strong></a>

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