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Complete emacs newbie here. I'm using emacs 23.1.1 on Ubuntu with emacs starter kit . I primarily work in the lua-mode (installed with package-install lua-mode ). I need to tune how indentation works, so it would match my coding guidelines. The guidelines are: tabs-to-spaces; two spaces per indent; 80 chars per line maximum, without trailing spaces. Example: local foo = function() print("Hello, world!") end What I get with emacs if I don't try to fight with its auto-indent: local foo = function() print("Hello, world") end Update: (This belongs to a comment, but since it needs extra formatting, I have to place it here.) If I try solution by Thomas, I get this: local foo = function() print("Hello, world") end Note that end is indented with a tab and four spaces. Does not quite work... Update 2: This thing is also gets indented in the wrong way: local bar = foo( "one", "two", baz(), -- Note three spaces "quo" ) It should be: local bar = foo( "one", "two", baz(), "quo" ) Update 3: Third case of the wrong indentation: local bar = foo( "one", "two" ) local t = 5 -- This line should not be indented, -- also note tab between local and t. Update 4: Here is what I get with the current version from Thomas: local foo = function() print("Hello, world") end local bar = 5 -- Emacs put \t before 5 local zzz = foo( -- Emacs put \t before foo "one", -- Pressed TAB here twice

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