| Class | Superclass | Slots |
| contents |
| Word | Stack effect |
| ( next-state -- quot ) | |
| ( contents -- box ) | |
| ( index backwards? -- index+/-1 ) | |
| ( index string backwards? -- in-bounds? ) | |
| ( condition -- quot ) | |
| ( dfa -- word ) | |
| ( next-state -- quot ) | |
| ( literal-transitions -- case-body ) | |
| ( literals non-literals -- quot ) | |
| ( transitions -- case default ) | |
| ( words dfa -- ) | |
| ( dfa -- words dfa ) | |
| ( last-match index str quot final? backwards? -- last-index/f ) | |
| ( transitions final-state? -- quot ) | |
| ( quot -- quot' ) | |
| ( word dfa -- quot ) |
| Word | Stack effect |
| ( object -- ? ) |