Comma-separated list of items that influence the Lisp indenting when enabled with the 'lisp' option. Currently only one item is supported: expr:1 use 'indentexpr' for Lisp indenting when it is set expr:0 do not use 'indentexpr' for Lisp indenting (default) Note that when using 'indentexpr' the = operator indents all the lines, otherwise the first line is not indented (Vi-compatible).

(default "")