editor

Documentation

Overview

Package editor opens an external editor on a temp file and returns the edited bytes. It deliberately keeps no state — callers serialize what they want, hand a hint at the file extension, and parse what comes back.

Index

• Variables
• func Edit(basename, ext string, initial []byte) ([]byte, error)

Variables

var ErrUnchanged = errors.New("editor: file unchanged")

ErrUnchanged is returned when the user saved without modifying the file.

Functions

func Edit

func Edit(basename, ext string, initial []byte) ([]byte, error)

Edit launches an editor on a temp file pre-filled with `initial`. The temp file is named `<basename>.<ext>` so editors pick the right syntax. Returns the edited bytes or ErrUnchanged.