This is a description of the formal PEG morphology algorithm. If there are or appear to be discrepancies between this description and the formal grammar, the formal grammar wins.
Given any string of characters, this algorithm will split it uniquely into words, including possibly some non-lojban words.
We examine the string from the left, and words are extracted one by one from the left.
1- Extract all initial-spaces, if there are any.
2- Extract a word and then any following spaces, if there are any.
3- Repeat 2 until there is nothing left.