Update C enhancements in vimrc

.vimrc

@@ -4,6 +4,7 @@ set laststatus=2
 set t_Co=256
 set encoding=utf-8
 set autoindent
+set smartindent
 set magic
 set number
 set scrolloff=3
@@ -23,6 +24,7 @@ set mouse=a
 set noswapfile
 set nofoldenable
 set lazyredraw
+set t_Co=256
 
 filetype on
 filetype plugin on
@@ -30,10 +32,11 @@ filetype indent on
 
 syntax enable
 " :color shine
+:colorscheme jellybeans
 
 autocmd FileType markdown setlocal tw=80 et ts=2 sw=2
 autocmd FileType text setlocal tw=80
-autocmd FileType c,cpp set formatoptions+=ro
+autocmd FileType c,cpp set set tabstop=4 shiftwidth=4 expandtab
 autocmd FileType c set omnifunc=ccomplete#Complete
 autocmd FileType html,xhtml,css,xml,xslt set shiftwidth=2 softtabstop=2
 autocmd FileType vim,lua,nginx set shiftwidth=2 softtabstop=2
@@ -43,4 +46,18 @@ autocmd FileType xml set omnifunc=xmlcomplete#CompleteTags
 autocmd FileType make set noexpandtab shiftwidth=8 softtabstop=0
 autocmd FileType asm set noexpandtab shiftwidth=8 softtabstop=0 syntax=nasm
 
+" Enhanced keyboard mappings
+"
+" in normal mode F2 will save the file
+nmap <F2> :w<CR>
+
+" in insert mode F2 will exit insert, save, enters insert again
+imap <F2> <ESC>:w<CR>i
+
+" switch between header/source with F4
+map <F4> :e %:p:s,.h$,.X123X,:s,.c$,.h,:s,.X123X$,.c,<CR>
+
+map <F5> :make<CR>
+map <F6> :make clean all<CR>
+
 set notermguicolors