Proposed Update Unicode Standard Annex #14 UNICODE LINE BREAKING ALGORITHM Summary

This annex presents the Unicode line breaking algorithm along with detailed descriptions of each of the character classes established by the Unicode line breaking property. The line breaking algorithm produces a set of "break opportunities", or positions that would be suitable for wrapping lines when preparing text for display. A model implementation using pair tables is also provided. [Review Note: This version added property value and rules to prevent breaks within the sequence <regional indicator symbol, ZERO WIDTH JOINER, regional indicator symbol>. Note that the change is broader, however. It will actually prevent breaks within the sequence <ID, ZERO WIDTH JOINER, ID>. Because ZW is separated out from CM, there will be other edge cases with small differences. Feedback on these changes is appreciated.] Status This is a draft document which may be updated, replaced, or superseded by other documents at any time. Publication does not imply endorsement by the Unicode Consortium. This is not a stable document; it is inappropriate to cite this document as other than a work in progress. A Unicode Standard Annex (UAX) forms an integral part of the Unicode Standard, but is published online as a separate document. The Unicode Standard may require conformance t