XPath Tutorial

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Examples
>> XPaths <<

//* (tree)

/AAA (tree)

//BBB (tree)

//@id (tree)

/AAA/CCC (tree)

/AAA/BBB (tree)

//DDD/BBB (tree)

//BBB[@*] (tree)

/*/*/*/BBB (tree)

//BBB[@id] (tree)

/child::AAA (tree)

/AAA/BBB[1] (tree)

/AAA/DDD/BBB (tree)

//BBB[@name] (tree)

//CCC | //BBB (tree)

//GGG/self::* (tree)

/descendant::* (tree)

/AAA/CCC/DDD/* (tree)

//BBB[not(@*)] (tree)

/child::AAA/BBB (tree)

//DDD/parent::* (tree)

//BBB[@id='b1'] (tree)

//*[count(*)=2] (tree)

//*[count(*)=3] (tree)

/AAA/EEE | //BBB (tree)

/AAA/BBB[last()] (tree)

//FFF/ancestor::* (tree)

//GGG/ancestor::* (tree)

//*[count(BBB)=2] (tree)

//*[name()='BBB'] (tree)

//ZZZ/following::* (tree)

//GGG/preceding::* (tree)

//GGG/following::* (tree)

//GGG/preceding::* (tree)

//BBB[@name='bbb'] (tree)

//CCC/descendant::* (tree)

//GGG/descendant::* (tree)

//CCC/descendant::DDD (tree)

/AAA/XXX/following::* (tree)

/AAA/XXX/preceding::* (tree)

/child::AAA/child::BBB (tree)

/AAA/BBB/descendant::* (tree)

//GGG/ancestor-or-self::* (tree)

//*[contains(name(),'C')] (tree)

//CCC/following-sibling::* (tree)

//CCC/preceding-sibling::* (tree)

//CCC/descendant-or-self::* (tree)

//BBB[position() mod 2 = 0 ] (tree)

//*[starts-with(name(),'B')] (tree)

/AAA/BBB/following-sibling::* (tree)

/AAA/XXX/preceding-sibling::* (tree)

/AAA/XXX/descendant-or-self::* (tree)

//*[string-length(name()) = 3] (tree)

//*[string-length(name()) < 3] (tree)

//*[string-length(name()) > 3] (tree)

/AAA/BBB/DDD/CCC/EEE/ancestor::* (tree)

/AAA/EEE | //DDD/CCC | /AAA | //BBB (tree)

//BBB[normalize-space(@name)='bbb'] (tree)

/AAA/XXX/DDD/EEE/ancestor-or-self::* (tree)

//BBB[ position() = floor(last() div 2 + 0.5) or position() = ceiling(last() div 2 + 0.5) ] (tree)

//CCC[ position() = floor(last() div 2 + 0.5) or position() = ceiling(last() div 2 + 0.5) ] (tree)

//GGG/ancestor::* | //GGG/descendant::* | //GGG/following::* | //GGG/preceding::* | //GGG/self::* (tree)