Expose paragraphSafeWidth.
Generalise shiftFragment function.
Intended for testing paragraphSafeWidth.
Allow explicit control of box collapsing.
Allow generating an empty run.
Add extensible filter for invisible lines.
Store default level in BiDiLevels.
This will be required for handling empty text sequences.
Prepare for vertical-align in BoxOptions.
Implement calculation of safe paragraph width.
Refactor lineNumbers into a common module.
Update changelog on paragraph alignment options.
Test with AlignStart by default.
Allow paragraphRect without point 0,0.
Test right-aligned paragraph.
Add start/end paragraph alignment.
In the future, when the paragraph direction is not explicitly set,
start/end options will allow alignment to change line by line,
whereas left/right alignment will be constant.
Add centre/right paragraph alignment.
Internally mark hard line breaks.
Internally allow splitting texts at endpoints.
This is required in order to preserve a hard line break at the end of
the input.
Internally support text breaks in ascending order.
Intended as a workaround to `breaksRight` not including the status of
the end-of-text break.
Separate split list functions into a module.