clipboardTextSerializer only produced Markdown for lists, so copying a table
and pasting into a plain-text/Markdown target emitted one cell value per line
(ProseMirror's default text serializer). Route tables through htmlToMarkdown
(turndown + GFM) as well.
- Extract the decision into a pure, exported classifyClipboardSelection()
helper; the existing list rule (2+ items) is preserved exactly.
- Handle whole-table selections (top-level `table` node) and partial cell
selections (bare `tableRow` nodes), wrapping bare rows in <table><tbody> so
the GFM turndown rule detects them.
- Add unit tests for classifyClipboardSelection (6 cases).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
claude_code
db9f29c16b