autoindent is subset of smartindent in vim?
问题 :help autoindent : Copy indent from current line when starting a new line (typing in Insert mode or when using the "o" or "O" command). ... :help smartindent : Do smart autoindenting when starting a new line. Works for C-like programs, but can also be used for other languages. ... Normally 'autoindent' should also be on when using 'smartindent'. An indent is automatically inserted: After a line ending in '{'. After a line starting with a keyword from 'cinwords'. Before a line starting with '}