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package ansiterm
type stateID int
type state interface {
Enter() error
Exit() error
Handle(byte) (state, error)
Name() string
Transition(state) error
}
type baseState struct {
name string
parser *AnsiParser
}
func (base baseState) Enter() error {
return nil
}
func (base baseState) Exit() error {
return nil
}
func (base baseState) Handle(b byte) (s state, e error) {
switch {
case b == CSI_ENTRY:
return base.parser.csiEntry, nil
case b == DCS_ENTRY:
return base.parser.dcsEntry, nil
case b == ANSI_ESCAPE_PRIMARY:
return base.parser.escape, nil
case b == OSC_STRING:
return base.parser.oscString, nil
case sliceContains(toGroundBytes, b):
return base.parser.ground, nil
}
return nil, nil
}
func (base baseState) Name() string {
return base.name
}
func (base baseState) Transition(s state) error {
if s == base.parser.ground {
execBytes := []byte{0x18}
execBytes = append(execBytes, 0x1A)
execBytes = append(execBytes, getByteRange(0x80, 0x8F)...)
execBytes = append(execBytes, getByteRange(0x91, 0x97)...)
execBytes = append(execBytes, 0x99)
execBytes = append(execBytes, 0x9A)
if sliceContains(execBytes, base.parser.context.currentChar) {
return base.parser.execute()
}
}
return nil
}
type dcsEntryState struct {
baseState
}
type errorState struct {
baseState
}
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