mirror of https://github.com/liamg/aminal.git
101 lines
2.3 KiB
Go
101 lines
2.3 KiB
Go
package terminal
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import (
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"time"
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)
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// Wish list here: http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
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type TerminalCharSet int
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type escapeSequenceHandler func(pty chan rune, terminal *Terminal) error
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var escapeSequenceMap = map[rune]escapeSequenceHandler{
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0x05: enqSequenceHandler,
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0x07: bellSequenceHandler,
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0x08: backspaceSequenceHandler,
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0x09: tabSequenceHandler,
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0x0a: newLineSequenceHandler,
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0x0b: newLineSequenceHandler,
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0x0c: newLineSequenceHandler,
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0x0d: carriageReturnSequenceHandler,
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0x0e: shiftOutSequenceHandler,
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0x0f: shiftInSequenceHandler,
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0x1b: ansiHandler,
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}
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func newLineSequenceHandler(pty chan rune, terminal *Terminal) error {
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terminal.ActiveBuffer().NewLine()
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terminal.isDirty = true
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return nil
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}
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func tabSequenceHandler(pty chan rune, terminal *Terminal) error {
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terminal.ActiveBuffer().Tab()
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terminal.isDirty = true
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return nil
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}
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func carriageReturnSequenceHandler(pty chan rune, terminal *Terminal) error {
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terminal.ActiveBuffer().CarriageReturn()
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terminal.isDirty = true
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return nil
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}
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func backspaceSequenceHandler(pty chan rune, terminal *Terminal) error {
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terminal.ActiveBuffer().Backspace()
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terminal.isDirty = true
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return nil
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}
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func bellSequenceHandler(pty chan rune, terminal *Terminal) error {
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// @todo ring bell - flash red or some shit?
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return nil
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}
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func enqSequenceHandler(pty chan rune, terminal *Terminal) error {
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terminal.logger.Errorf("Received ENQ!")
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return nil
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}
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func shiftOutSequenceHandler(pty chan rune, terminal *Terminal) error {
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terminal.logger.Errorf("Received shift out")
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return nil
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}
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func shiftInSequenceHandler(pty chan rune, terminal *Terminal) error {
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terminal.logger.Errorf("Received shift in")
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return nil
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}
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func (terminal *Terminal) processInput(pty chan rune) {
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// https://en.wikipedia.org/wiki/ANSI_escape_code
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var b rune
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for {
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if terminal.config.Slomo {
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time.Sleep(time.Millisecond * 100)
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}
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b = <-pty
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if b < 0x20 {
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if handler, ok := escapeSequenceMap[b]; ok {
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//terminal.logger.Debugf("Handling escape sequence: 0x%x", b)
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if err := handler(pty, terminal); err != nil {
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terminal.logger.Errorf("Error handling escape sequence: %s", err)
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}
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terminal.isDirty = true
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continue
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}
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}
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//terminal.logger.Debugf("Received character 0x%X: %q", b, string(b))
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terminal.ActiveBuffer().Write(b)
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terminal.isDirty = true
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}
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}
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