@char
Table Cell Alignment Character (NISO JATS table model)
The character to be used in horizontal alignment of the contents of an entry in a
table. The content of a table data or table header element is to be aligned horizontally based on the character named in this attribute, for example, alignment on a period for decimal alignment or on an equal sign for alignment of variables. (This attribute is based on and
intended to be converted easily to the XHMTL char attribute.)