[1] [[CSS]] および派生規格の[[関数]]のようなもの:
,*名前	,*説明	,*状態	,*出典
,[CODE(CSS)@en[[[activate]]()]],,非標準
,[CODE(CSS)@en[[[attr]]()]]	,[[属性値]]	,[[W3C]] [[勧告]]	,"[CSS2], [CSS2.1], [CSS3 Color]"
,[CODE(CSS)@en[[[-ah-attr-from()]]]]
,[CODE(CSS)@en[[[buffer]]()]],,[[ISO/IEC]] [[CD]],[[STX]]
,[CODE(CSS)@en[[[cmyk]]()]],[[CMYK]] [[色]],非標準,[[Prince]]
,[CODE(CSS)[[[counter]]()]]	,計数子	,W3C 勧告	,[[CSS 2]]
,[CODE(CSS)[[[counters]]()]]	,計数子	,W3C 勧告	,[[CSS 2]]
,[CODE(CSS)@en[[[dashboard-region]]()]]	,	,非標準
,[CODE(CSS)@en[[[do]]()]],,非標準
,[CODE(CSS)[[[domain]]]]	,[[ドメイン名]]	,非標準	,[[Gecko]]
,[CODE(CSS)@en[[[expr]]()]],[[式]],非標準
,[CODE(CSS)[[[expression]]]]	,[[JScript]] [[式]]	,非標準	,[[WinIE]]
,[CODE(CSS)@en[[[filter]]()]],[[濾過子]],非標準
,[CODE(CSS)@en[[[format]]()]]	,	,[[W3C]][[勧告]]	,[[CSS 2]]
,[CODE(CSS)@en[[[-o-go()]]]]
,[CODE(CSS)@en[[[hsl]]()]]	,[[HSL]] [[色]]	,[[W3C]] [[勧告候補]]	,[CSS3 Color]
,[CODE(CSS)@en[[[-moz-hsl]]()]]	,[[HSL]] [[色]]	,時代遅れ → [CODE(CSS)@en[[[hsl]]()]]	,[[Gecko]]
,[CODE(CSS)@en[[[hsla]]()]]	,[[HSL]] [[色]] + [[透明度]]	,[[W3C]] [[勧告候補]]	,[CSS3 Color]
,[CODE(CSS)@en[[[-moz-hsla]]()]]	,[[HSL]] [[色]] + [[透明度]]	,時代遅れ → [CODE(CSS)@en[[[hsla]]()]]	,[[Gecko]]
,[CODE(CSS)@en[[[-o-integer()]]]]
,[CODE(CSS)@en[[[-o-language-string]]()]],,,[[Opera]] 9.50 Alpha 1
,[CODE(CSS)@en[[[linear-gradient()]]]]
,[CODE(CSS)@en[[[-o-link-rel()]]]]
,[CODE(CSS)@en[[[local]]()]]	,	,[[W3C]][[勧告]]	,[[CSS 2]]
,[CODE(CSS)@en[[[on]]()]],,非標準
,[CODE(CSS)@en[[[page-ref]]()]]	,	,非標準
,[CODE(CSS)@en[[[radial-gradient()]]]]
,[CODE(CSS)[[[rect]]]]	,[[範囲]]	,W3C 勧告	,[[CSS 2]]
,[CODE(CSS)@en[[[repeating-linear-gradient()]]]]
,[CODE(CSS)@en[[[repeating-radial-gradient()]]]]
,[CODE(CSS)@en[[[rgb]]]]	,[[RGB]] [[色]]	,[[W3C]] [[勧告]]	,"[CSS1], [CSS2], [CSS2.1], [CSS3 Color]"
,[CODE(CSS)@en[[[rgba]]]]	,[[RGB]] [[色]] + [[透明度]]	,[[W3C]] [[勧告候補]]	,[CSS3 Color]
,[CODE(CSS)@en[[[atsc-rgba]]()]]	,[[RGB]] [[色]] + [[透明度]]	,"[[ATSC]][[標準]], → [CODE(CSS)@en[[[rgba]]()]]"	,[[DASE]]
,[CODE(CSS)@en[[[-moz-rgba]]()]]	,[[RGB]] [[色]] + [[透明度]]	,時代遅れ → [CODE(CSS)@en[[[rgba]]()]]	,[[Gecko]]
,[CODE(CSS)@en[[[rgb-icc()]]]]
,[CODE(CSS)@en[[[-o-skin]]()]]	,	,	,[[Opera]]
,[CODE(CSS)@en[[[state]]()]],[[状態]],非標準
,[CODE(CSS)@en[[[static]]()]],,非標準,[[Prince]]
,[CODE(CSS)@en[[[string]]()]]
,[CODE(CSS)@en[[[symbols]]()]],,非標準,[[Prince]]
,[CODE(CSS)@en[[[type]]()]],,非標準
,[CODE(CSS)[[[url]]]]	,[[URI参照]]	,W3C 勧告	,[[CSS 1]]
,[CODE(CSS)@en[[[-o-url-doc()]]]]
,[CODE(CSS)[[[url-prefix]]]]	,[[URI参照]]先頭一致	,非標準	,[[Gecko]]

この表に挙げた他にも、[[選択子]]で[[擬似クラス]]や[[擬似要素]]として使われる[[関数]]のようなものもあります。

[2] [CITE@en-us[Custom CSS Functions]] ([TIME[2013-08-04 01:29:51 +09:00]] 版) <http://www.oxygenxml.com/doc/ug-editor/topics/dg-oxygen-css-functions.html>

>The oxy_local-name() Function
The oxy_name() Function
The oxy_url() Function
The oxy_base-uri() Function
The oxy_parent-url() Function
The oxy_capitalize() Function
The oxy_uppercase() Function
The oxy_lowercase() Function
The oxy_concat() Function
The oxy_replace() Function
The oxy_unparsed-entity-uri() Function
The oxy_attributes() Function
The oxy_substring() Function
The oxy_getSomeText(text, length) Function
The oxy_indexof() Function
The oxy_lastindexof() Function
The oxy_xpath() Function
The oxy_editor() Function
The oxy_label() Function
The oxy_link-text() Function
oxy_add(param1, ... , paramN, 'returnType')	Adds the values of all parameters from param1 to paramN.
oxy_subtract(param1, ..., paramN, 'returnType')	Subtracts the values of parameters param2 to paramN from param1.
oxy_multiply(param1, ..., paramN, 'returnType')	Multiplies the values of parameters from param1 to paramN.
oxy_divide(param1, param2, 'returnType')	Performs the division of param1 to param2.
oxy_modulo(param1, param2, 'returnType')	Returns the reminder of the division of param1 to param2.

[3] [CITE@en-us[The oxy_xpath() Function]] ([TIME[2013-08-04 01:31:30 +09:00]] 版) <http://www.oxygenxml.com/doc/ug-editor/concepts/dg-xpath-function.html>

concat()

[4] [CITE@en[Clarify that toggle() and attr() are invalid in sizes. Fixes #241 · 2e3de79 · ResponsiveImagesCG/picture-element]]
( ([TIME[2014-09-10 02:46:47 +09:00]] 版))
<https://github.com/ResponsiveImagesCG/picture-element/commit/2e3de7949f80f5a67645e2df2c5a1faf6b591500>