package main

import (
	"fmt"
	"os"
	"os/exec"

	"github.com/ricochet1k/termemu"
)

func main() {
	// Use the EmptyFrontend if you don't need UI callbacks.
	backend := &termemu.PTYBackend{}
	cmd := exec.Command("sh", "-c", "printf 'Hello World'")
	if err := backend.StartCommand(cmd); err != nil {
		fmt.Fprintln(os.Stderr, "StartCommand error:", err)
		return
	}

	term := termemu.NewWithMode(&termemu.EmptyFrontend{}, backend, termemu.TextReadModeRune)
	if term == nil {
		fmt.Println("failed to create terminal")
		return
	}

	_ = cmd.Wait()

	// Dump the screen contents to stdout.
	term.PrintTerminal()
}

package main

import (
	"fmt"
	"os"
	"os/exec"

	"github.com/ricochet1k/termemu"
)

type loggingFrontend struct{}

func (loggingFrontend) Bell() {}
func (loggingFrontend) RegionChanged(r termemu.Region, _ termemu.ChangeReason) {
	fmt.Printf("region changed: (%d,%d)-(%d,%d)\n", r.X, r.Y, r.X2, r.Y2)
}
func (loggingFrontend) ScrollLines(y int) {}
func (loggingFrontend) CursorMoved(x, y int) {}
func (loggingFrontend) StyleChanged(s termemu.Style) {}
func (loggingFrontend) ViewFlagChanged(v termemu.ViewFlag, v2 bool) {}
func (loggingFrontend) ViewIntChanged(v termemu.ViewInt, v2 int) {}
func (loggingFrontend) ViewStringChanged(v termemu.ViewString, v2 string) {}

func main() {
	backend := &termemu.PTYBackend{}
	cmd := exec.Command("sh", "-c", "printf '\\e[31mred\\e[0m' && echo")
	if err := backend.StartCommand(cmd); err != nil {
		fmt.Fprintln(os.Stderr, "StartCommand error:", err)
		return
	}
	term := termemu.NewWithMode(loggingFrontend{}, backend, termemu.TextReadModeRune)
	_ = cmd.Wait()

	for y := 0; y < 1; y++ {
		fmt.Println(term.ANSILine(y))
	}
}