func (e *Editor) NewBufferFromFile(filename string) (*buffer.Buffer, error) {
fullpath, err := filepath.Abs(filename)
if err != nil {
return nil, fmt.Errorf("couldn't determine absolute path: %s", err)
}
buf := e.findBufferByFullPath(fullpath)
if buf != nil {
return buf, nil
}
f, err := os.Open(fullpath)
if err == os.ErrNotExist {
// Assume a new file
e.SetStatus("(New file)")
buf = buffer.NewEmptyBuffer()
} else if err != nil {
e.SetStatus(err.Error())
return nil, err
}
defer f.Close()
buf, err = buffer.NewBuffer(f)
if err != nil {
e.SetStatus(err.Error())
return nil, err
}
buf.Path = fullpath
buf.Name = e.bufferName(filename)
e.buffers = append(e.buffers, buf)
return buf, nil
}
func NewEditor(filenames []string) *Editor {
e := new(Editor)
e.buffers = make([]*buffer.Buffer, 0, 20)
e.cutBuffers = newCutBuffers()
for _, filename := range filenames {
//TODO: Check errors here
e.NewBufferFromFile(filename)
}
if len(e.buffers) == 0 {
buf := buffer.NewEmptyBuffer()
buf.Name = e.bufferName("unnamed")
e.buffers = append(e.buffers, buf)
}
e.redraw = make(chan struct{})
e.views = view.NewTree(view.NewView(e.viewContext(), e.buffers[0], e.redraw))
e.active = e.views
e.UIEvents = make(chan termbox.Event, 20)
e.Commands = make(chan Command, 20)
return e
}