Lisp mode: When <Enter> is typed in insert mode set the indent for the next line to Lisp standards (well, sort of). Also happens with "cc" or "S". 'autoindent' must also be on for this to work. The 'p' flag in 'cpoptions' changes the method of indenting: Vi compatible or better. Also see 'lispwords'. The '-' character is included in keyword characters. Redefines the "=" operator to use this same indentation algorithm rather than calling an external program if 'equalprg' is empty. This option is not used when 'paste' is set.

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