about space before --

[LiXizhi]

The default comment command will generate following comment code

--function FuncExpression:CompileCode(ast)
     --return {ast:tostring()}
--end

which will be formated to

--function FuncExpression:CompileCode(ast)
--return {ast:tostring()}
--end

this makes decomment difficult. how about ignore all spaces before --?

same is true, such as

local a;      -- this is a

[DarrenGZY]

need some time think about this

[DarrenGZY]

I'm thinking of changing comment style rather than formatting style. Put comment string at start of the line.

function FuncExpression:CompileCode(ast)
      return {ast:tostring()}
end

after comment

--function FuncExpression:CompileCode(ast)
--      return {ast:tostring()}
--end