Used to address and select some needed nodes in XSLT
Link
Nodes
element
attribute
text
namespace
processing-instruction
comment
main document node
Selecting Nodes
/ Matches the document node
node() any node
text() Matches text nodes
<xsl:template match=" text()"> #text() matches text nodes
<xsl:value-of select="."/>
</xsl:template>
name of an element matches that element
. current node
.. parent node
* Matches any element
@ matches attributes
@* any attribute
castMember/character: direct child
description//character: character nested to any level of description
Predicates
[index or attribute] /bookstore/book[1] evaluates to the first matched node with that criteria
last()
position()<3 index of the matched elements in the parent's contents must be less than three
book[@lang] book elements that have a lang attribute
book[price>35.00]/title title elements that are children of book elements that have a price element with a value greater than 35
| or
TAG XPATH="//div[@id='panel_A_1']/*[position()=2] " EXTRACT=TXT 2nd child
Shortcut Keywords
The shortcut selects:
shortcutKey::node[predicate]
| AxisName |
Result |
| self |
current node |
| parent |
parent of the current node |
| ancestor |
all ancestors (parent, grandparent, etc.) of the current node |
| ancestor-or-self |
all ancestors of the current node or the current node itself |
| attribute |
all attributes of the current node |
| child |
all children of the current node |
| descendant |
all descendants (children, grandchildren, etc.) of the current node |
| descendant-or-self |
all descendants of the current node
or the current node itself |
| following |
everything in the document after the closing tag of the current node |
| following-sibling |
all siblings after the current node |
| namespace |
all namespace nodes of the current node |
| preceding |
everything in the document that is before the start tag of the current node |
| preceding-sibling |
all siblings before the current node |
| Example |
Result |
| child::book |
Selects all book nodes that are children of the current node |
| attribute::lang |
Selects the lang attribute of the current node |
| child::* |
Selects all children of the current node |
| attribute::* |
Selects all attributes of the current node |
| child::text() |
Selects all text child nodes of the current node |
| child::node() |
Selects all child nodes of the current node |
| descendant::book |
Selects all book descendants of the current node |
| ancestor::book |
Selects all book ancestors of the current node |
| ancestor-or-self::book |
Selects all book ancestors of the current node - and the current as well if it is a book node |
| child::*/child::price |
Selects all price grandchildren of the current node |
| Operator |
Description |
Example |
Return value |
| | |
Computes two node-sets |
//book | //cd |
Returns a node-set with all book and cd elements |
| + |
Addition |
6 + 4 |
10 |
| - |
Subtraction |
6 - 4 |
2 |
| * |
Multiplication |
6 * 4
|
24 |
| div |
Division |
8 div 4 |
2 |
| = |
Equal |
price=9.80 |
true if price is 9.80
false if price is 9.90 |
| != |
Not equal |
price!=9.80 |
true if price is 9.90
false if price is 9.80 |
| < |
Less than |
price<9.80 |
true if price is 9.00
false if price is 9.80 |
| <= |
Less than or equal to |
price<=9.80 |
true if price is 9.00
false if price is 9.90 |
| > |
Greater than |
price>9.80 |
true if price is 9.90
false if price is 9.80 |
| >= |
Greater than or equal to |
price>=9.80 |
true if price is 9.90
false if price is 9.70 |
| or |
or |
price=9.80 or price=9.70 |
true if price is 9.80
false if price is 9.50 |
| and |
and |
price>9.00 and price<9.90 |
true if price is 9.80
false if price is 8.50 |
| mod |
Modulus (division remainder) |
5 mod 2 |
1 |
|