package main

import (
	"os"
	"os/exec"
	"strings"
)

func GetPager() (string, []string) {
	pager, hasPager := os.LookupEnv("PAGER")
	if hasPager {
		return pager, nil
	}
	return "less", []string{"--RAW-CONTROL-CHARS"}
}

func ShowPaged(content string) error {
	pager, args := GetPager()
	cmd := exec.Command(pager, args...)
	cmd.Stdin = strings.NewReader(content)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	return cmd.Run()
}