CPTextView lacked the superscript:, subscript:, unscript:, raiseBaseline:, and lowerBaseline: action methods.
Consequently, standard Baseline menu items targeting these actions were automatically disabled,
even though CPTypesetter and _CPLineFragment already possessed full layout support for baseline offset and superscript attributes.
* AppKit/CPTextView/CPTextView.j:
- Implement superscript:, subscript:, unscript:, raiseBaseline:, and lowerBaseline:.
- Apply attribute modifications to selected ranges or current typingAttributes.
- Register baseline operations with CPUndoManager.
- Implement menu validation logic to enable baseline actions only when the text view is editable and richText is true.
* Tests/AppKit/CPTextViewTest.j:
- Add unit tests for superscript levels and baseline offsets across text ranges and typing attributes.
- Add test coverage for menu validation.
* Tests/Manual/TextEditor/WORKLIST.md:
- Remove resolved baseline management entry.
- Expand documentation on text layout and line fragment drawing.
- Document open items: Justify crash, kerning/ligature settings, and Font Panel integration.
- Note optimal line breaking as a candidate feature for future improvement.
David Richardson
cc120e514a