A little vim plugin used to display an reStructuredText-like slide in CCCA x SITCON meet up, 2015/10/14

slide.vim

" ============= "
" filetype.vim "
" ============= "
au BufNewFile,BufRead slide setf slide.rst
au BufNewFile,BufRead *.slide setf slide.rst.todo


" =================== "
" ftplugin/slide.vim "
" =================== "
setlocal scrolloff=0
nnoremap <CR> :call Show_next_item()<CR>

let s:backuped = 0

function Show_next_item ()
    if !s:backuped
        normal! :w slide.backup
        let s:backuped = 1
    endif

    let l:hidden_bullet_nu = s:exist_hidden_bullets()
    if l:hidden_bullet_nu
        call s:show_one_hidden_bullet(l:hidden_bullet_nu)
    else
        call s:next_page()
    endif
endfunction

function s:exist_hidden_bullets ()
    normal! gg
    let l:i = 1
    while 1
        let l:line = getline(l:i)
        if l:line =~# '\v^ *#.*$'
            return l:i
        elseif l:line ==# '<hide>'
            return 0
        endif
        let l:i = l:i + 1
    endwhile
    return 0
endfunction

function! s:show_one_hidden_bullet (nu)
    call cursor(a:nu, 1)
    normal! ^r*
endfunction

function s:next_page ()
    " delete current page
    normal! /<hide>
kkdgg
    normal! d2j
    normal! 4gg
    normal! /\v^\=+
    normal! O----
<hide>
    normal! gg
endfunction


" ================ "
" syntax/slide.vim "
" ================ "
syn match rstBulletList /\(^\ *\)\@<=#\(\ \)\@=/
syn match  hidden_text _^ *#.*$_
syn region hidden_text start=_<hide>_ end=_<stophide>_
hi         hidden_text ctermfg=black

syn match   todo_string _\v"([^\\"]|\\.)*"_
hi def      todo_string ctermfg=LightMagenta


syn match   Google_G            _\v<G(oogle>)@=_
syn match   Google_first_o      _\v(<G)@<=o(ogle>)@=_
syn match   Google_second_o     _\v(<Go)@<=o(gle>)@=_
syn match   Google_g            _\v(<Goo)@<=g(le>)@=_
syn match   Google_l            _\v(<Goog)@<=l(e>)@=_
syn match   Google_e            _\v(<Googl)@<=e>_
hi def      Google_G            cterm=bold ctermfg=blue
hi def      Google_first_o      cterm=bold ctermfg=red
hi def      Google_second_o     cterm=bold ctermfg=yellow
hi def      Google_g            cterm=bold ctermfg=blue
hi def      Google_l            cterm=bold ctermfg=green
hi def      Google_e            cterm=bold ctermfg=red

syn match   Yahoo               _\v<Yahoo!_
hi def      Yahoo               cterm=bold ctermfg=magenta