CSSFrameConstructor/Constraints
This page lists constraints for the CSSFrameConstructor
Some constraints to start things off. Feel free to come up with a better syntax to mark optional and multiple frames
Tables
A table is always constructed of a frame tree like:
nsTableOuterFrame
(nsTableCaptionFrame) optional
nsTableFrame
(nsTableColGroupFrame optional, right?
nsTableColFrame)
nsTableRowGroupFrame (is this optional?)
nsTableRowFrame
nsTableCellFrame
The nsTableCaptionFrame and nsTableCellFrames will hold non-table frames.