1 package ansiterm
2
3 type csiEntryState struct {
4 baseState
5 }
6
7 func (csiState csiEntryState) Handle(b byte) (s state, e error) {
8 csiState.parser.logf("CsiEntry::Handle %#x", b)
9
10 nextState, err := csiState.baseState.Handle(b)
11 if nextState != nil || err != nil {
12 return nextState, err
13 }
14
15 switch {
16 case sliceContains(alphabetics, b):
17 return csiState.parser.ground, nil
18 case sliceContains(csiCollectables, b):
19 return csiState.parser.csiParam, nil
20 case sliceContains(executors, b):
21 return csiState, csiState.parser.execute()
22 }
23
24 return csiState, nil
25 }
26
27 func (csiState csiEntryState) Transition(s state) error {
28 csiState.parser.logf("CsiEntry::Transition %s --> %s", csiState.Name(), s.Name())
29 csiState.baseState.Transition(s)
30
31 switch s {
32 case csiState.parser.ground:
33 return csiState.parser.csiDispatch()
34 case csiState.parser.csiParam:
35 switch {
36 case sliceContains(csiParams, csiState.parser.context.currentChar):
37 csiState.parser.collectParam()
38 case sliceContains(intermeds, csiState.parser.context.currentChar):
39 csiState.parser.collectInter()
40 }
41 }
42
43 return nil
44 }
45
46 func (csiState csiEntryState) Enter() error {
47 csiState.parser.clear()
48 return nil
49 }
50
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