" generate markdown on save
autocmd BufWritePost *.markdown call RunMarkdown()
autocmd BufEnter *.markdown call RunMarkdown()
autocmd InsertLeave *.markdown nested update

function! RunMarkdown()
    let l:htmlFile = "/tmp/" . shellescape(expand("%:t:r") . "_from_markdown.html")
    let l:markdownFile = shellescape(expand("%:p"))
    let l:htmlContent = shellescape('<\!DOCTYPE html><html><head><meta charset="UTF-8" /><link rel=stylesheet href="file:///Users/alex/github.css" /></head><body>')
    let l:command = printf("silent !echo %s > %s && markdown %s >> %s && open -g %s", l:htmlContent, l:htmlFile, l:markdownFile, l:htmlFile, l:htmlFile)
    execute l:command
endfunction