* 定数 [CODE[7]]

[1] [[CSSOM]] [[ED]] の [CODE(DOMc)@en[[[NAMESPACE_RULE]]]] ([CODE[[[7]]]])
と [[SVG 1.1]] [[勧告]]の
[CODE(DOMc)@en[[[COLOR_PROFILE_RULE]]]] ([CODE[[[7]]]])
がどちらも同じ値なのですが、いいのですかね?

;; [CITE[Basic Data Types and Interfaces - SVG 1.1 - 20030114]] ([TIME[2003-01-09 19:57:00 +09:00]] 版) <http://www.w3.org/TR/2003/REC-SVG11-20030114/types.html#InterfaceSVGCSSRule>

;; [CITE@en-US[Cascading Style Sheets Object Model (CSSOM)]] ([TIME[2007-12-30 22:47:54 +09:00]] 版) <http://dev.w3.org/cvsweb/~checkout~/csswg/cssom/Overview.html?rev=1.64&content-type=text/html;%20charset=utf-8#cssrule>

;; 現時点で [CODE(DOMc)@en[[[NAMESPACE_RULE]]]] は [[Opera 9.61]] だけ実装、
[CODE(DOMc)@en[[[COLOR_PROFILE_RULE]]]] は実装なし。

[2]
[CITE@en[Re: CSS 3 Namespaces WD comment:  DOM?]] ([[Tantek Çelik]] 著, [TIME[2003-02-15 03:16:55 +09:00]] 版) <http://lists.w3.org/Archives/Public/www-style/2003Feb/0050.html>

>The current thinking is to use 8 for NAMESPACE_RULE.

[FIG[
[FIGCAPTION[
[13] [CITE@en[CSS Animations]] ([TIME[2013-02-19 23:45:05 +09:00]] 版) <http://www.w3.org/TR/2013/WD-css3-animations-20130219/#CSSRule-IDL>
]FIGCAPTION]

[PRE(IDL code)[
  const unsigned short KEYFRAMES_RULE = 7;
  const unsigned short KEYFRAME_RULE = 8;
]PRE]
]FIG]

* [CODE(DOMc)@en[NAMESPACE_RULE]]

[9] [CITE@en[CSS 3 Namespaces WD comment:  DOM?]] ([[Alexander J. Vincent]] 著, [TIME[2003-02-13 08:54:26 +09:00]] 版) <http://lists.w3.org/Archives/Public/www-style/2003Feb/0046.html>

[8] [CITE@en['''['''CSSOM''']''' @namespace at-rule proposal]] ([[Anne van Kesteren]] 著, [TIME[2006-06-06 20:51:01 +09:00]] 版) <http://lists.w3.org/Archives/Public/www-style/2006Jun/0026.html>

[10] [CITE@en[Re: '''['''CSSOM''']''' @namespace at-rule proposal]] ([[Boris Zbarsky]] 著, [TIME[2006-06-07 00:02:22 +09:00]] 版) <http://lists.w3.org/Archives/Public/www-style/2006Jun/0028.html>

>
Actually, Mozilla just uses CSSRule for the DOM representation of namespace 
rules (as in, instanceof CSSUnknownRule is false), but .type returns 
UNKNOWN_RULE for lack of anything better to return (since returning anything 
else would not be forward-compatible with spec revisions). 



[11] [CITE[Basic Data Types and Interfaces – SVG 1.1 (Second Edition)]]
( ([TIME[2011-08-10 12:35:27 +09:00]] 版))
<http://www.w3.org/TR/2011/REC-SVG11-20110816/types.html#InterfaceSVGCSSRule>

[12] [CITE@en[CSSOM Constants ''''''[''''''CSS Working Group Wiki'''''']'''''']]
( ([TIME[2011-10-17 21:58:41 +09:00]] 版))
<http://wiki.csswg.org/spec/cssom-constants>