sml.vim

Sml + vim integration, originally for https://class.coursera.org/proglang-002/class/index

Requirements

• Vim 7.0+
• Sml http://www.smlnj.org/dist/working/110.76/

Installation

• Vundle way (recommended), add the following to your $HOME/.vimrc file:

    Bundle 'javier-lopez/sml.vim'
  

  And run inside of vim:

    :BundleInstall
  

• Pathogen way:

    $ git clone https://github.com/javier-lopez/sml.vim.git ~/.vim/bundle/sml.vim
  

• Manual (simplest if you've never heard of vundle or pathogen), download the zip file generated from github and extract it to $HOME/.vim

    mv sml.vim*.zip $HOME/.vim
    cd $HOME/.vim && unzip sml.vim*.zip
  

  Update the help tags from vim:

    :helpt ~/.vim/doc/
  

Usage

On .sml files you can execute :make to run your current buffer on SML, it also indent and shows SML sintaxis. See :help sml.txt for detailed information.

Indentation & highlighting features

There are some differences (features) from standard Vim 7.4 files.

• No line wrapping (textwidth = 0).

• Indent case as follows:

    case x of
      NONE => "none"
    | SOME of str => str
  

• Indent handle as follows:

    call_smth_dangerous
      handle Err1 => 41
           | Err2 => 42
  

• Indent functional pattern matching:

    fun length [] = 0
      | length _::xs = 1 + length xs
  

• Indent let after fun:

    fun double_sum (x, y) =
      let val sum = x + y
      in 2*sum end
  

• Fix indentation of if/then/else when using =.

• Fix highlighting of =>, :=.

• Highlight record fields in type declaration, record creation and record patterns.

These features are also available as an independent plugin.