$err:INVALID-CONSTRAINT
$err:INVALID-CONSTRAINT — Incorrect constraint reference.
Variable:
{http://docbook.org/ns/docbook/errors}INVALID-CONSTRAINT
Defined in:
modules/errors.xsl
Used in:
modules/programming.xsl
Synopsis
$dbe:INVALID-CONSTRAINT:=xs:QName('dbe:INVALID-CONSTRAINT')
Description
This error is raised if a constraint link points to something
other than a constraintdef.
This should be identified as a validation error by a Schematron rule.