16.18. Metadata Statements

Given a column headed METADATA, the cells in successive lines result in a metadata annotation for the generated rules:
  • Text in the first cell below METADATA is ignored.
  • Text in the second cell below METADATA is subject to interpolation, as described above, using values from the cells in the rule rows. The metadata marker character @ is prefixed automatically, and should not be included in the text for this cell.
  • Text in the third cell below METADATA is for documentation only. It should be used to indicate the column's purpose to a human reader.
  • From the fourth row on, non-blank entries provide data for interpolation as described above. A blank cell results in the omission of the metadata annotation for this rule.