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