History: Morphology: cmavo

To check whether a string begins with a cmavo, first you have to check that it does not begin with a cmene or with a CVCy-lujvo.

A CVCy-lujvo consists of a CVC-rafsi, then a y, then any number of initial-rafsi (possibly none) and finally a brivla-core, or of a stressed-CVC-rafsi, then a y and then a short-final-rafsi.

If the string does not begin with a cmene or with a CVCy-lujvo, then it begins with a cmavo in any of these cases:

• It begins with a cmavo-form followed by spaces
• It begins with a cmavo-form followed by a lojban-word
• It begins with a stressed-cmavo-form followed by spaces
• It begins with a stressed-cmavo-form followed by a lojban-word with a stress mark on the first syllable.
• It begins with a stressed-cmavo-form followed by a lojban-word that starts with a single consonant and then a syllable nucleus.
• It begins with a stressed-cmavo-form followed by a lojban-word that does not start with a final-syllable.
• It begins with a stressed-cmavo-form followed by a cmene. (In this case the cmavo will be one of doi, la, lai, la'i.)

A cmavo-form consists of zero or one consonants plus every following syllable nucleus (at least one), where the last nucleus does not have a stress mark, or of one or more y in a row, or of a digit.

A stressed-cmavo-form consists of zero or one consonants plus every following syllable nucleus (at least one), where the last nucleus has a stress mark.