* 仕様書

[REFS[
- [1] [CITE@en[URL Standard]] ([TIME[2017-12-05 18:27:32 +09:00]]) <https://url.spec.whatwg.org/#path-percent-encode-set>
]REFS]

* 文字の一覧

[REFS[
- [2] [CITE@en[Character set "default encode set"]] ([TIME[2016-03-08 21:13:40 +09:00]] 版) <https://chars.suikawiki.org/set/%24url%3Adefault-encode-set>
]REFS]

* 文脈

[3] 次の場面で使われます。

[FIG(list short)[
- [[フォームの提出]]
- [[プロトコル取扱器]]
- [[内容取扱器]]
- [[URL構文解析器]]
-- 階層構造のある[[パス]]
- [[素片パーセント符号化集合]]
]FIG]

* 歴史

[4] [CITE@en[Editorial: use specific names for encode sets]]
([[annevk]]著, [TIME[2017-02-14 17:11:45 +09:00]])
<https://github.com/whatwg/url/commit/1d69a774bab856651e0d792e825a976056aeaf59>

[5] [CITE@en[Percent-encode additional characters in "fragment state"]]
([[mikewest]]著, [TIME[2017-12-05 17:19:26 +09:00]])
<https://github.com/whatwg/url/commit/7a3c69f8a1583b33e730c3fea85141a618e7c697>