The line following a `let` in a `do` block should not be indented.

[w9]

Right now after a complete let statement in a do block, a level of indentation is added for the next line:

main :: IO ()
main = do
    let a = 1
        █

This is not expected as let statements in do blocks don't need in clauses.

If this is in case the programmer wants to type in more than one assignments in a single let, then it is unexpected that re-indentation of the following block (using the = key):

main :: IO ()
main = do
    let a = 1
    return ()

gives me a wrong indentation that doesn't even compile:

main :: IO ()
main = do
    let a = 1
        return ()

[raichoo]

While this is true there is not easy way to detect that you are in a do block other than doing backtracking which is rather expensive. Doing that with current Vim tools is not really feasible.

[Daniel Waterworth]

What's really annoying is that the indentation is often changed in cases like this where it was correct before. Is there a way to disable automatic indentation in this plugin? It makes it essentially unusable.

[raichoo]

I've just merged #88 which introduces a flag to disable indentation, so you can use one that suits your style better.

[Daniel Waterworth]

Great, thanks!

[Jake Zimmerman]

You can actually get rid of this auto-indenting behavior (on latest master), with this new config setting:

let g:haskell_indent_let_no_in = 0

(See PR #98.)