24.6.6 Capturing table row and column counts with variables

Two predefined macro variables allow you to access the numbers of columns and rows in the current table:

<$$_tblcols>   Count of columns in the current table

<$$_tblrows>   Count of rows in the current table

You can use these variables in macro expressions that manipulate or make use of table properties. For example, to add a rule above and below each table by placing the rule in an extra row that spans all columns:

[TableStartMacros]

*=<tr><td colspan="<$$_tblcols>"><hr></td></tr>

[TableEndMacros]

*=<tr><td colspan="<$$_tblcols>"><hr></td></tr>

See also:

§24.6.1 Invoking macros around tables

§28.3.4 Using predefined macro variables

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