A break character is stored as the last character of the paragraph it
ends, followed by the usual '\n' separator. The story model, paragraph
ranges, styles, editing and every exporter keep splitting paragraphs on
'\n' only, so the change stays in the places that create, lay out or
write break characters:
- IDML import writes the break and ends the paragraph, so the range that
follows keeps its own paragraph style. NextOddPage and NextEvenPage map
to new odd and even page break characters; IDML export writes a
paragraph that ends in a break as that one Br with its
ParagraphBreakType, so export and re-import give the same story.
- Word and RTF import, Type > Insert Break Character (with odd and even
page breaks added) and typing end the paragraph after a break. Typing
between a break and its return goes to the next paragraph; deleting
either deletes both.
- Layout: a break that ends a paragraph leaves no empty line; the next
paragraph starts in the next column, frame or page, as a paragraph start
option would. Page breaks and Next Page start options move to the next
frame on a later page; odd and even ones to the next page with that
page number parity (no such frame: overset). A break inside a paragraph
from an older document still moves the rest of that paragraph on.
Storing the break as a paragraph separator of its own would have changed
every place that counts or splits paragraphs on '\n'.
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
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