- From: poot <cvsmail@w3.org>
- Date: Thu, 06 Oct 2011 19:38:06 -0400
- To: public-html-diffs@w3.org
hixie: Define 'Unicode code point'. (whatwg r6650) http://dev.w3.org/cvsweb/html5/spec/Overview.html?r1=1.5331&r2=1.5332&f=h http://html5.org/tools/web-apps-tracker?from=6649&to=6650 =================================================================== RCS file: /sources/public/html5/spec/Overview.html,v retrieving revision 1.5331 retrieving revision 1.5332 diff -u -d -r1.5331 -r1.5332 --- Overview.html 6 Oct 2011 23:33:20 -0000 1.5331 +++ Overview.html 6 Oct 2011 23:37:54 -0000 1.5332 @@ -2716,14 +2716,16 @@ specification: a 16 bit unsigned integer, the smallest atomic component of a <code>DOMString</code>. (This is a narrower definition than the one used in Unicode.) <a href="#refsWEBIDL">[WEBIDL]</a><p>The term <dfn id="unicode-character">Unicode character</dfn> is used to mean a <i title="">Unicode scalar value</i> (i.e. any Unicode code point that - is not a surrogate code point). <a href="#refsUNICODE">[UNICODE]</a><p>The term <dfn id="character">character</dfn>, when not qualified as - <em>Unicode</em> character, means a <a href="#unicode-character">Unicode character</a> - where possible, or a surrogate code point when not: when an - algorithm that processes strings is defined in terms of characters, - a pair of <a href="#code-unit" title="code unit">code units</a> consisting of a - high surrogate followed by a low surrogate must be treated as a - single character, but isolated surrogates must each be treated as a - single character also.<p>The <dfn id="code-point-length">code-point length</dfn> of a string is the number of + is not a surrogate code point). <a href="#refsUNICODE">[UNICODE]</a><p>The term <dfn id="unicode-code-point">Unicode code point</dfn> means a <a href="#unicode-character">Unicode + character</a> where possible, and an isolated surrogate code + point when not. When a conformance requirement is defined in terms + of characters or Unicode code points, a pair of <a href="#code-unit" title="code + unit">code units</a> consisting of a high surrogate followed by a + low surrogate must be treated as the single code point represented + by the surrogate pair, but isolated surrogates must each be treated + as the single code point with the value of the surrogate.<p>In this specification, the term <dfn id="character">character</dfn>, when not + qualified as <em>Unicode</em> character, is synonymous with the term + <a href="#unicode-code-point">Unicode code point</a>.<p>The <dfn id="code-point-length">code-point length</dfn> of a string is the number of <a href="#code-unit" title="code unit">code units</a> in that string.<p class="note">This complexity results from the historical decision to define the DOM API in terms of 16 bit (UTF-16) <a href="#code-unit" title="code unit">code units</a>, rather than in terms of <a href="#unicode-character" title="Unicode character">Unicode characters</a>.<h3 id="conformance-requirements"><span class="secno">2.2 </span>Conformance requirements</h3><p>All diagrams, examples, and notes in this specification are
Received on Thursday, 6 October 2011 23:38:09 UTC