Commit 246e105dfbd035b0a75544fbbec7a07b0e681e99
2024-01-18T17:22:54
Refactor mark chains. (#224) * Rename MD_MARKCHAIN to MD_MARKSTACK to indicate its semantics much clearer. * Simplify its implementation (single-linked list instead of double-linked one). * Where it was reused (misused?) for other, unrelated stuff, with other semantics, it's now done explicitly. (i.e. got rid of TABLECELLBOUNDARIES). * PTR_CHAIN still uses the stack (we don't care about order there), but it got separated from the array of ordinary opener stacks at least.