f:empty-length
f:empty-length — Returns a map that represents an empty length.
Function:
{http://docbook.org/ns/docbook/functions}empty-length#0
Defined in:
modules/units.xsl
Used in:
main.xsl
Synopsis
f:empty-length( | ) as map(*) |
Description
Lengths are compound objects. Lengths consist of a magnitude (a number) and a unit: 3 inches, for example, or 11.9 barleycorns⌖2 in the case of absolute lengths. For relative lengths, the unit is something relative like percent.
These are represented as maps internally and f:empty-length()
returns a length with no magnitude or units.