e1+e2 | If e1 and
e2 are numbers, their sum. |
e1-e2 | e1 minus
e2. |
e1*e2 | The product of e1
and e2. |
e1 div
e2 | If e1 and
e2 are numbers, their
quotient as a floating-point value. |
e1 mod
e2 | The floating-point remainder of
e1 divided by
e2. |
e1 =
e2 | Tests to see if e1
equals e2. |
e1 <
e2 | Tests to see if e1
is less than e2. You
can't say e1 <
e2"<". |
e1 <=
e2 | Tests to see if e1
is less than or equal to
e2. |
e1 >
e2 | Tests for greater-than. |
e1 >=
e2 | Tests for greater or equal. |
e1 !=
e2 | Tests for inequality. |
e1 and
e2 | True if both e1
and e2 are true.
If e1 is false,
e2 is not evaluated. |
e1 or
e2 | True if either e1
or e2 is true.
If e1 is true,
e2 is not evaluated. |
/e
| Evaluate e starting
at the document node. For example,
"/barge" selects the
<barge>
element that is the child of the document node. |
e1/e2 | The /
operator separates levels in a tree. For example,
"/barge/load"
selects all <load>
children of
the <barge>
element child of the document node. |
//e
| Abbreviation for
descendant-or-self::e. |
./e
| Abbreviation for self::e. |
../e | Abbreviation for
parent::e. |
@e | Abbreviation for
attribute::e. |
e1|e2 | Selects the union of nodes that match
e1 and those that match
e2. |
* | A wild-card operator; matches all nodes of
the proper type for the context. For example,
"*" selects all child elements
of the context node, and
"feet/@*" selects all attributes
of the context node's
<feet> children. |
e1[e2] | Square brackets enclose a
predicate, which specifies an
expression e2
that selects nodes from a larger set
e1.For example,
in the XPath expression
"para[@class='note']",
the para selects all
<para> children
of the context node, and then the predicate selects
only the children that have an attribute
class="note".
Another example:
"item[1]" would select
the first <item>
child of the context node. |
$e
| The dollar sign indicates that the following
name is a variable name. For example, in an XSLT
script, if variable n is set to 357,
<xsl:value-of select="$n"/> is expanded
to the string "357". |
