Review follow-ups on top of the table detection:
- Each block's column comes from a precomputed map and a binary search
instead of scanning every column's members, so pages with many text
blocks stay linear.
- A table has at most 64 columns. Rows are materialized to every column, so
a hostile page laid out as a staircase of blocks would otherwise make
(blocks / 2)^2 cells. Test: a_staircase_of_blocks_is_not_a_huge_table.
- RTF: a row's cell boundaries are written before its cells (RTF requires
it), and a spanning cell ends at the last column it spans. The test checks
the Totals row now spans two columns.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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