28.9.5 Assigning macros to graphics or tables for HTML
You can specify macros to be invoked before, after, or in place of a graphic, or a group of graphics, by assigning macros to a GraphicID in one of the [Graph*Macros] sections; see §23.5.2 Replacing or surrounding a graphic with macro code.
You can specify macros to be invoked before, after, or in place of a table, or a group of tables, by assigning macros to a TableID in one of the [Table*Macros] sections; see §24.6 Using macros to control table properties and §24.6.1 Invoking macros around tables.
You can also specify macros to be invoked inside tables; see §24.6.5 Specifying row-group, row, and cell attributes with macros.
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