gilo/internal/terminal/terminal.go

50 lines
905 B
Go

package terminal
import (
"fmt"
"os"
"golang.org/x/term"
)
const ClearScreen = "2J"
const ResetCursor = "H"
// Is this a valid interactive terminal?
func check() {
if !term.IsTerminal(int(os.Stdin.Fd())) {
panic("An interactive terminal is required to use a text editor!")
}
}
// Put the terminal in raw mode
func RawOn() *term.State {
check()
oldState, err := term.MakeRaw(int(os.Stdin.Fd()))
if err != nil {
panic(err)
}
return oldState
}
// Restore the terminal to canonical mode
func RawOff(oldState *term.State) {
err := term.Restore(int(os.Stdin.Fd()), oldState)
if err != nil {
panic(err)
}
}
func ANSICode (code string) {
fmt.Printf("\x1b[%s", code)
}
// Print a formatted string to stdout, with CRLF line endings for proper terminal formatting
func OutLn(format string, a ...interface{}) {
formatted := fmt.Sprintf(format, a...)
fmt.Printf("%s\r\n", formatted)
}