Siteswap

The Siteswap object is a utility for analyzing siteswap. It is not a constructor and has no properties. All methods of Siteswap are static.

Methods

Siteswap.analyze(): Parses an input string and returns siteswap data.
Siteswap.separate(): Analyzes siteswap data and returns throwing data for each prop.

Siteswap specifications

For reference, I describe the specifications of the pattern to be accepted as a siteswap in HABA format.

Pattern ::= Async | Sync ;
Async ::= EachHand+ ;
EachHand ::= AsyncSimple | AsyncMulti ;
AsyncSimple ::= Even | Odd ;
Even ::= "[02468acegikmoqsuwy]" ;
Odd ::= "[13579bdfhjlnprtvz]" | 'x' ;
AsyncMulti ::= '[' AsyncSimple AsyncSimple+ ']' ;
Sync ::= BothHand+ '*'? ;
BothHand ::= '(' OneHand ',' OneHand ')' ;
OneHand ::= SyncSimple | SyncMulti ;
SyncSimple ::= Even 'x'? ;
SyncMulti ::= '[' SyncSimple SyncSimple+ ']' ;
Space ::= "\s+" ;