CSSのセレクタをXPathに変換する


Warning! 2008/5/22追記：このエントリは情報が不十分だったり間違いが含まれてたりするので、下記URLのページを参考にするようにしてください↓
http://piro.sakura.ne.jp/latest/blosxom/mozilla/xul/2007-09-13_selector-to-xpath.htm

CSS3あたりをXPath1.0あたりに変換する表

CSSXPath
.class//*[@class="class"]*1
.class//*[contains(concat(" ",@class," ")," class ")]*2
tag//tag
#id//*[@id="id"]
tag.class#id//tag[@class="class"][@id="id"]
.class.class2//*[contains(concat(" ",@class," ")," class ") and contains(concat(" ",@class," ")," class2 ")]
tag tag2//tag//tag2
tag > tag2//tag/tag2
tag + tag2//tag/following-sibling::tag2
tag[attr]//tag[@attr]
tag[attr="val"]//tag[@attr="val"]
tag[attr~="val"]//tag[contains(concat(" ",@attr," ")," val ")]
tag[attr|="val"]//tag[contains(concat("|",@attr,"|"),"|val|")]
tag[attr*="val"]//tag[contains(@attr,"val")]
tag[attr^="val"]//tag[starts-with(@attr,"val")]
tag[attr$="val"]//tag[substring(@attr, string-length(@attr) - 2) = 'val')]
tag:first-child//*[1]/self::tag
tag:last-child//*[last()]/self::tag
tag:first-of-type//tag[1]
tag:last-of-type//tag[last()]
tag:only-of-type//tag[count(../tag) = 1]
tag:empty//tag[not(node())]
tag:nth-child(3)//tag[count(preceding-sibling::*) = 3]
tag:nth-child(odd)//tag[count(preceding-sibling::*) mod 2 = 0]
tag:nth-child(evenn)//tag[count(preceding-sibling::*) mod 2 = 1]
tag:nth-child(3n)//tag[count(preceding-sibling::*) mod 3 = 0]
tag:nth-last-child(2)//tag[count(following-sibling::*) = 1]
tag:nth-of-type(odd)//tag[position() mod 2 = 1]
*:root/*
tag:contains("foo")//tag[contains(text(), 'foo')]
tag:not([type="text"]//tag[not(@type="text")]
*:not(tag)//*[not(name="tag")]

不可能ぽいもの

E:link, E:visited, E:active, E:hover, E:focus, E:target, E:lang(ja), 
E:enabled, E:disabled, E:checked, E:indeterminate, 
E::first-line, E::first-letter, E::selection, E::before, E::after

雑感

*1:ただし空白区切りの複数指定に未対応

*2:無理矢理対応してみた