blob: 2719c0ecf618cd9a744549ab1b39655febd0b2ca [file] [log] [blame]
package examples
import (
// CheckArgs should be used to esnure the right command line arguments are
// passed before executing an example.
func CheckArgs(arg ...string) {
if len(os.Args) < len(arg)+1 {
Warning("Usage: %s %s", os.Args[0], strings.Join(arg, " "))
// CheckIfError should be used to naively panics if an error is not nil.
func CheckIfError(err error) {
if err == nil {
fmt.Printf("\x1b[31;1m%s\x1b[0m\n", fmt.Sprintf("error: %s", err))
// Info should be used to describe the example commands that are about to run.
func Info(format string, args ...interface{}) {
fmt.Printf("\x1b[34;1m%s\x1b[0m\n", fmt.Sprintf(format, args...))
// Warning should be used to display a warning
func Warning(format string, args ...interface{}) {
fmt.Printf("\x1b[36;1m%s\x1b[0m\n", fmt.Sprintf(format, args...))