startcolumn and endcolumn

Programmer's Guide > Programming and Scripting Techniques > Line Numbering in Arbortext Editor and Arbortext Publishing Engine > Line numbering application building reference > The atipl layout markup > The commonattr entity in the layout.dtd > startcolumn and endcolumn

<!ELEMENT atipl:startcolumn EMPTY>
<!ATTLIST atipl:startcolumn
number NMTOKEN #IMPLIED
%commonattrs; >
<!ELEMENT atipl:endcolumn EMPTY>
<!ATTLIST atipl:endcolumn
%commonattrs; >

Columns within a span are indicated by the startcolumn and endcolumn markup. The number attribute indicates the column number. To force a column break, set attr2 to force.