Programmer's Guide > Programming and Scripting Techniques > Line Numbering in Arbortext Editor and Arbortext Publishing Engine > Line numbering application building reference > The line numbering namespace
  
The line numbering namespace
The line numbering namespace and associated markup (atipl tags) are described on the PTC Inc. namespace web site at:www.arbortext.com/namespace/index-of-arbortext-namespaces.html.