attribute
attributes are associated with elements and attribute lists. Note that the
first construction here is translated to a block in the output XSLT. This is not a direct reflection of XSLT
which only allows a block or a text content.
Syntax
<attribute> ::= "attribute" <quote> <qname> <quote>
( "namespace" <quote> <uri-reference> <quote> )?
(
<quote> <alphanumeric string> <quote> |
"{" ( <attribute block> )+ "}"
)
Options
|
name
|
a QName defining the name of this attribute. |
|
namespace
|
an (optional) namespace associated with this attribute. |
|
alphanumeric string
|
a string defining a simple text value for the named attribute. |
Elements
One or more of the block elements. If any elements are defined then there should not be a string value
defined and vice versa.
Examples
A simple element definition with two defined attributes.
element "script" {
attribute "src" {
value "concat( $inScriptsDir, $inScript )"
}
attribute "type" "text/javascript"
}
would compile to
<element name="script">
<attribute name="src">
<value-of select="concat( $inScriptsDir, $inScript )"/>
</attribute>
<attribute name="type">
<text>text/javascript</text>
</attribute>
</element>
This shows the two forms of the "attribute" statement
In the above, note that if it is required to have an XPath expression (for example with a variable) then
the "value" command must be used. For example
attribute "attrib-1" {
value "$var-1"
}
would translate to
<xsl:attribute name="attrib-1">
<xsl:value-of select="$var-1"/>
</xsl:attribute>
Adding an explicit namespace is done with the namespace option.
element "div" {
attribute "attrib-1" namespace "http://www.w3.org/1999/xhtml" "value-1"
}
would translate to
<element name="div">
<attribute name="attrib-1" namespace="http://www.w3.org/1999/xhtml">
<text>value-1</text>
</attribute>
</element>
Errors
Having an attribute value and a block.
stylesheet {
version "1.0"
proc tryout {
element "div" {
attribute "attrib-1" "'value-1'" {
value "'value-2'"
}
}
}
}
gives the error
**** (128) "attribute" cannot have simple/default value and enclosed templates in line 6
Remove either default/simple text or enclosed templates.
Having a misspelled keyword within the block
stylesheet {
version "1.0"
proc tryout {
element "div" {
attribute "attrib-1" {
variable var_1 "'value-2'"
valu "$var_1"
}
}
}
}
gives the errors
**** (106) Unexpected symbol "valu" in line 8
Check spelling, did you mean "value" ?
Copyright 2024 Hugh Field-Richards. All Rights Reserved.