What is 'line-breaking hyphenation'? In particular, I am trying to determine the meaning of the TUS statement 'There is no line-breaking hyphenation' referring to the Lanna script at the end of TUS Section 16.7.
One possibility is that it means that visible text does not distinguish line breaks within words from line breaks at word boundaries, which would be a statement about the prevalent style. Another possibility is that it means that automatic line-breaking does not split words. I am not sure if 'opportunities for line breaking are lexical' nevertheless allows for the use of hyphenation dictionaries. The statement 'Opportunities for line breaking are lexical, but a line break may not be inserted between a base letter and a combining diacritic' confuses me. Is it saying that a clitic may not be separated from a word if so doing would break a vertical stack? Perhaps it is also saying that there is no line break between words if thay share a vertical stack, as can happen in Pali. Richard.

