Add ftplugin/haskell.vim

Add syntax formatting settings for Haskell. Want 4-space tabs and a
maximum of 80 characters per line.

Using this style guide:
https://github.com/tibbe/haskell-style-guide/blob/master/haskell-style.md

1 files changed, 16 insertions, 0 deletions

diff --git a/ftplugin/haskell.vim b/ftplugin/haskell.vim
new file mode 100644
index 0000000..d393a45
--- /dev/null
+++ b/ftplugin/haskell.vim
@@ -0,0 +1,16 @@
+" Haskell vim settings
+
+" Indentation
+setlocal expandtab
+setlocal tabstop=4
+setlocal softtabstop=4
+setlocal shiftwidth=4
+
+
+setlocal textwidth=80
+
+
+" Don't preserve indentation on empty lines
+inoremap <buffer> <CR> <CR>
+nnoremap <buffer> o o
+nnoremap <buffer> O O