Method Document

buffer.go:25–36

Document method to return document instance from the current text and cursor position.

()

// Document method to return document instance from the current text and cursor position.
func (b *Buffer) Document() (d *Document) {
	if b.cacheDocument == nil ||
		b.cacheDocument.Text != b.Text() ||
		b.cacheDocument.cursorPosition != b.cursorPosition {
		b.cacheDocument = &Document{
			Text:           b.Text(),
			cursorPosition: b.cursorPosition,
		}
	}
	b.cacheDocument.lastKey = b.lastKeyStroke
	return b.cacheDocument
}

// DisplayCursorPosition returns the cursor position on rendered text on terminal emulators.
// So if Document is "日本(cursor)語", DisplayedCursorPosition returns 4 because '日' and '本' are double width characters.