| package ansiterm |
| |
| type csiEntryState struct { |
| baseState |
| } |
| |
| func (csiState csiEntryState) Handle(b byte) (s state, e error) { |
| csiState.parser.logf("CsiEntry::Handle %#x", b) |
| |
| nextState, err := csiState.baseState.Handle(b) |
| if nextState != nil || err != nil { |
| return nextState, err |
| } |
| |
| switch { |
| case sliceContains(alphabetics, b): |
| return csiState.parser.ground, nil |
| case sliceContains(csiCollectables, b): |
| return csiState.parser.csiParam, nil |
| case sliceContains(executors, b): |
| return csiState, csiState.parser.execute() |
| } |
| |
| return csiState, nil |
| } |
| |
| func (csiState csiEntryState) Transition(s state) error { |
| csiState.parser.logf("CsiEntry::Transition %s --> %s", csiState.Name(), s.Name()) |
| csiState.baseState.Transition(s) |
| |
| switch s { |
| case csiState.parser.ground: |
| return csiState.parser.csiDispatch() |
| case csiState.parser.csiParam: |
| switch { |
| case sliceContains(csiParams, csiState.parser.context.currentChar): |
| csiState.parser.collectParam() |
| case sliceContains(intermeds, csiState.parser.context.currentChar): |
| csiState.parser.collectInter() |
| } |
| } |
| |
| return nil |
| } |
| |
| func (csiState csiEntryState) Enter() error { |
| csiState.parser.clear() |
| return nil |
| } |