Erlang indentation and syntax for Vim

This is an improved version of the Erlang indentation and syntax shipped with Vim 7.3.

Installation

Method 1

• Clone this repository:

    $ mkdir -p ~/.vim/bundle
    $ cd ~/.vim/bundle
    $ git clone https://github.com/hcs42/vim-erlang
  

• Add the repository path to runtimepath in your .vimrc:

    :set runtimepath^=~/.vim/bundle/vim-erlang/
  

Method 2

• Copy syntax/erlang.vim into ~/.vim/syntax/.
• Copy indent/erlang.vim into ~/.vim/indent/.

Development and testing

This section is relevant only if you want to be involved in the development of the script.

The indentation script can be tested in the following way:

• Copy syntax/erlang.vim into ~/syntax.
• Open test_indent.erl in Vim from this directory. (test_indent.erl always shows how the Erlang code is indented by the script – not how it should be.)
• Source helper.vim (:source helper.vim)
• Press F1 to load the new indentation (indent/erlang.vim).
• Press F3 to reindent the current line. Press shift-F3 to print a log.
• Press F4 to reindent the current buffer.
• Press F5 to show the tokens of the current line.

Note:

• When the indentation scripts detects a syntax error in test mode (i.e. when it was loaded with F1 from helper.vim), it indents the line to column 40 instead of leaving it as it is. This behavior is useful for testing.