f:pi
f:pi — Returns DocBook processing-instruction property values.
Function:
{http://docbook.org/ns/docbook/functions}pi#2
{http://docbook.org/ns/docbook/functions}pi#3
Defined in:
../standalone-functions.xsl (2)
Used in:
main.xsl, modules/chunk.xsl
Used by:
Synopsis
f:pi( | $context as node()?, |
$property as xs:string) as xs:string? |
f:pi( | $context as node()?, |
$property as xs:string, | |
$default as xs:string*) as xs:string* |
Description
Several DocBook elements have alternate presentations that can be
specified with global parameters. Many of them can also be set on a per-element
basis with a db
processing instruction.
The date format, for example, can be changed in this way as described
in the f:date-format()
function.
The f:pi()
function takes a context and the name
of a property. It returns the value specified for that property from all of the
db
processing instructions in the
specified context. The three argument version allows you to specify a default
value. It will be returned if there are no values specified for the property
in that context.