I have been browsing through the code for about two hours now and I am fairly confident that overall structure would improve quite a bit if insets and paragraphs had direct access to their buffers.
It would also lay the foundation to fix a few longstanding problems in mathed: Conversion between the TeX string representation and the inset structure is Buffer dependent due to macros, yet we simply ignore the problem in those places where we don't have easy buffer access. I really would like to give this a try. A rough plan would be something like: 1. Have a Buffer * Inset::buffer_ member in all insets, set directly after construction. 2. Make sure it sort-of-gets-adjusted on copy&paste. 3. Drop the buffer parameter from all 4. Consolitdation. 5. Remove the buffer_ member from Inset and have such only in those the actually use it (meaning especially no such member in InsetMathChar) 6.-10. do similar for Paragraph. For the Old Guard: this is slightly different to the inset owner, as the buffer an inset belongs to is rarely changed, and only in a few places (construction, cut&paste). So there's less 'maintanance', and for ordinary operations, Paragraphs still have value semantics. Note also that InsetTabular already has such a member, and other insets need BufferParam argument at construction time. Andre'
