- 
[2] [CITE@en[Web Applications 1.0 r3859        Parser changes: <dc>, <ds>, <dialog> are now treated differently. Styling changes: <dialog>, <dc>, <ds>, and <details> are now treated differently. Semantic changes: Dropped <dialog>. <figure> and <details> now use <dt>/<dd> instead of <legend>. Editorial changes: Added a section on how to mark up conversations, moved the sections on footnotes and tag clouds around. Updated lots of examples. Validator changes: Changed rules for missing alt='' given the new elements.]]
( ([TIME[2009-09-15 20:09:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=3858&to=3859>
-- [45] 
[CITE@en['''['''acgiowt''']''' (2) Parser changes: <dc>, <ds>, <dialog> are now treated di…]], [[Hixie]], [TIME[2009-09-15 20:09:22 +09:00]], [TIME[2024-09-06T08:38:56.000Z]] <https://github.com/whatwg/html/commit/9c490f21ae094de128e5bc6d3111640014a195c7#diff-41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d>





[FIG(data)[ [46] [[HTML要素概説]]

:[F[要素名]]:[CODE[dc]]
:[F[要素名]]:[CODE[ds]]
:日付:[TIME[2009-09-15]]
:説明:
[TIME[2009-09-15]]、
[CITE[HTML5]]
の[[構文解析器]]に、
将来の利用のためとして
[CODE[dc]],
[CODE[ds]]
が追加された。
[SRC[>>8]]
用途は規定されていなかった。
[CODE[ds]]
は 
[CODE[dialog]] 
との併用が想定されていた。
[SRC[SW:<ds>]]
[TIME[2009-09-29]]、
未規定要素の事前追加は不評だったとして、
[CODE[dc]],
[CODE[ds]]
は削除された。
[SRC[>>9]]
:出典:
[REFS[

-
[8] 
[CITE[HTML5 r3859]],
[DATA(.author)[[[Hixie]]]], 
[TIME(.published)[2009-09-15 20:09:22 +09:00]], [TIME[2024-09-06T08:38:56.000Z]] <https://github.com/whatwg/html/commit/9c490f21ae094de128e5bc6d3111640014a195c7>
-
[9] 
[CITE[HTML5 r4022]],
[DATA(.author)[[[Hixie]]]], 
[TIME(.published)[2009-09-29 10:43:58 +09:00]], [TIME[2024-09-06T08:55:28.000Z]] <https://github.com/whatwg/html/commit/a09f97d42cbfadfaa139f36e43b5a6bbc221c3aa>



]REFS]

]FIG]


[1] [CITE[IRC logs: freenode / #whatwg / 20090909]]
([TIME[2009-10-18 18:18:41 +09:00]] 版)
<http://krijnhoetmer.nl/irc-logs/whatwg/20090909#l-493>


-[3] [CITE@en[Web Applications 1.0 r4022   Remove <dc> and <ds> since forward-looking compatibility isn't popular apparently. So much for people liking extensibility... :-)]]
( ([TIME[2009-09-29 10:43:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=4021&to=4022>
-- [6] 
[CITE@en['''['''ct''']''' (0) Remove <dc> and <ds> since forward-looking compatibility isn…]], [[Hixie]], [TIME[2009-09-29 10:43:58 +09:00]], [TIME[2024-09-06T08:55:28.000Z]] <https://github.com/whatwg/html/commit/a09f97d42cbfadfaa139f36e43b5a6bbc221c3aa#diff-41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d>
-- [7] 
[CITE@en[7639 – Please remove "dc" and "ds" from the parser]], [TIME[2019-04-02T04:11:06.000Z]], [TIME[2024-09-06T08:55:43.010Z]] <https://www.w3.org/Bugs/Public/show_bug.cgi?id=7639>


[4] [CITE[''''''[''''''whatwg'''''']'''''' the cite element]]
( ([TIME[2009-10-28 01:01:35 +09:00]] 版))
<http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2009-October/023851.html>

[5] 
[[Ian Hickson]] は[[対話]]の記述方法の必要性が実証されれば 
[CODE[dialog]]
を復活させるもやぶさかではないと考えていたようです。
そして 
script
を表すために [CODE[ds]]
を使う想定だったようです。
[SRC[>>1, >>4]]