71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
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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