[Luca on space resolution]
So, my idea for handling space resolution is tho have a LM ask its
children about their spaces, and create the necessary elements (while at
the moment each LM creates elements for its own spaces).
For example, if we have this LM tree
Outer BlockLM
|
+------------+------------+
| | |
BlockLM 1 BlockLM 2 BlockLM 3
|
+------+-----+
| |
BlockLM A BlockLM B
BlockLM1.getNextKnuthElements() would return to the outer BlockLM only
the elements representing its block content, without any space.
In order to decide which elements it has to create, the outer BlockLM
could have some lines like:
(currentChild = BlockLM 1
nextChild = BlockLM 2)
space1 = currentChild.getSpaceAfter();
space2 = nextChild.getSpaceBefore();
if (this.mustKeepTogether()
|| currentChild.mustKeepWithNext() && !nextChild.hasBreakBefore()
|| !currentChild.hasBreakAfter() && nextChild.mustKeepWithPrevious) {
// there cannot be a break between the two children,
createElementsForSpace(resolve(space1, space2, false, false));
Surely there is a possible break here. It just have a very high penalty,
but even keep-*="always" is allowed to break.
regards,
finn
