select template

"select template functionality
function TemplateCPP()
    echom "Creating *.cpp file \n"
    let alltemplates = split(globpath("~/.vim/templates/cpp/", "*.cpp"), '\n')
    let sz = len(alltemplates)
    let numberedtemplates = range(1, sz)

    for i in range(sz)
        let numberedtemplates[i] = "(" . string(i + 1) . "): " . alltemplates[i]
    endfor

    let templatenum = inputlist(["Select a template:"] + numberedtemplates + ["(" . string(sz + 1) . "): " . "None"])
    let selected = get(alltemplates, templatenum - 1, "None")
    if selected !=# "None"
        exec ":0r " selected
    endif
endfunction

"template for cpp
autocmd BufNewFile *.cpp :call TemplateCPP()