dotfiles/vim/vimrc

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"" General Behaviours
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set nocompatible "Don't have to try to be compatible with old vi
set autoread "Read a file if it's changed from outside of vim

let mapleader = "," "Leader key lets you make more kinds of shortcuts!

" Source the vimrc file after saving it
autocmd! bufwritepost .vimrc source $MYVIMRC


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"" Tabbing
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set tabstop=4 "actual tab presses
set shiftwidth=4 "for autoindent
set expandtab "change to single spaces
set smarttab
set autoindent "use last line to set next indent
set smartindent "guess harder, based on C-like language
" set wrap "wrap lines of text


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"" UI - Colours
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syntax on
colorscheme desert
set colorcolumn=80
hi Folded ctermfg=darkred "set colour for folded lines


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"" UI - Numbering
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set number "show line numbers
set relativenumber "current line always 0 (requires 7.3 and up)
set ruler "show row,col count in status line


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"" UI - Code Folding
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set foldmethod=indent
set foldlevel=1
set foldtext=MyFoldText()

function! MyFoldText()
    let line = getline(v:foldstart)
    let indent = indent(v:foldstart)
    let indentOnly = strpart(line, 0, indent-1)
    let linecount = v:foldend+1 - v:foldstart
    let plural = ""
    if linecount != 1
        let plural = "s"
    endif
    let foldtext = '+'.indentOnly.'... ('.linecount.' More lines)'
    return foldtext
endfunction


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"" UI - Search
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set hlsearch "make searches highlighted
set incsearch "vim will search as you type!


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"" Shortcuts 
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" More convenient escape
imap ii <Esc>
imap II <Esc>

" Add extra lines up and down
map <leader>j o<Esc>k
map <leader>k O<Esc>j

" window resizing
noremap + <C-w>10+
noremap - <C-w>10-