" Vim filetype plugin file
" Language: ConTeXt typesetting engine
" Maintainer: Nicola Vitacolonna <nvitacolonna@gmail.com>
" Former Maintainers: Nikolai Weibull <now@bitwi.se>
" Latest Revision: 2016 Oct 30

if exists("b:did_ftplugin")
 finish
endif
let b:did_ftplugin = 1

let s:cpo_save = &cpo
set cpo&vim

if !exists('current_compiler')
 compiler context
endif

let b:undo_ftplugin = "setl com< cms< def< inc< sua< fo< ofu<"
 \ . "| unlet! b:match_ignorecase b:match_words b:match_skip"

setlocal comments=b:%D,b:%C,b:%M,:% commentstring=%\ %s formatoptions+=tjcroql2
if get(b:, 'context_metapost', get(g:, 'context_metapost', 1))
 setlocal omnifunc=contextcomplete#Complete
 let g:omni_syntax_group_include_context = 'mf\w\+,mp\w\+'
 let g:omni_syntax_group_exclude_context = 'mfTodoComment'
endif

let &l:define='\\\%([egx]\|char\|mathchar\|count\|dimen\|muskip\|skip\|toks\)\='
 \ . 'def\|\\font\|\\\%(future\)\=let'
 \ . '\|\\new\%(count\|dimen\|skip\|muskip\|box\|toks\|read\|write'
 \ . '\|fam\|insert\|if\)'

let &l:include = '^\s*\\\%(input\|component\|product\|project\|environment\)'

setlocal suffixesadd=.tex

if exists("loaded_matchit")
 let b:match_ignorecase = 0
 let b:match_skip = 'r:\\\@<!\%(\\\\\)*%'
 let b:match_words = '(:),\[:],{:},\\(:\\),\\\[:\\],' .
 \ '\\start\(\a\+\):\\stop1円'
endif

let s:context_regex = {
 \ 'beginsection' : '\\\%(start\)\=\%(\%(sub\)*section\|\%(sub\)*subject\|chapter\|part\|component\|product\|title\)\>',
 \ 'endsection' : '\\\%(stop\)\=\%(\%(sub\)*section\|\%(sub\)*subject\|chapter\|part\|component\|product\|title\)\>',
 \ 'beginblock' : '\\\%(start\|setup\|define\)',
 \ 'endblock' : '\\\%(stop\|setup\|define\)'
 \ }

function! s:move_around(count, what, flags, visual)
 if a:visual
 exe "normal! gv"
 endif
 call search(s:context_regex[a:what], a:flags.'s') " 's' sets previous context mark
 call map(range(2, a:count), 'search(s:context_regex[a:what], a:flags)')
endfunction

" Move around macros.
nnoremap <silent><buffer> [[ :<C-U>call <SID>move_around(v:count1, "beginsection", "bW", v:false) <CR>
vnoremap <silent><buffer> [[ :<C-U>call <SID>move_around(v:count1, "beginsection", "bW", v:true) <CR>
nnoremap <silent><buffer> ]] :<C-U>call <SID>move_around(v:count1, "beginsection", "W", v:false) <CR>
vnoremap <silent><buffer> ]] :<C-U>call <SID>move_around(v:count1, "beginsection", "W", v:true) <CR>
nnoremap <silent><buffer> [] :<C-U>call <SID>move_around(v:count1, "endsection", "bW", v:false) <CR>
vnoremap <silent><buffer> [] :<C-U>call <SID>move_around(v:count1, "endsection", "bW", v:true) <CR>
nnoremap <silent><buffer> ][ :<C-U>call <SID>move_around(v:count1, "endsection", "W", v:false) <CR>
vnoremap <silent><buffer> ][ :<C-U>call <SID>move_around(v:count1, "endsection", "W", v:true) <CR>
nnoremap <silent><buffer> [{ :<C-U>call <SID>move_around(v:count1, "beginblock", "bW", v:false) <CR>
vnoremap <silent><buffer> [{ :<C-U>call <SID>move_around(v:count1, "beginblock", "bW", v:true) <CR>
nnoremap <silent><buffer> ]} :<C-U>call <SID>move_around(v:count1, "endblock", "W", v:false) <CR>
vnoremap <silent><buffer> ]} :<C-U>call <SID>move_around(v:count1, "endblock", "W", v:true) <CR>

" Other useful mappings
if get(g:, 'context_mappings', 1)
 let s:tp_regex = '?^$\|^\s*\\\(item\|start\|stop\|blank\|\%(sub\)*section\|chapter\|\%(sub\)*subject\|title\|part\)'

 fun! s:tp()
 call cursor(search(s:tp_regex, 'bcW') + 1, 1)
 normal! V
 call cursor(search(s:tp_regex, 'W') - 1, 1)
 endf

 " Reflow paragraphs with commands like gqtp ("gq TeX paragraph")
 onoremap <silent><buffer> tp :<c-u>call <sid>tp()<cr>
 " Select TeX paragraph
 vnoremap <silent><buffer> tp <esc>:<c-u>call <sid>tp()<cr>

 " $...$ text object
 onoremap <silent><buffer> i$ :<c-u>normal! T$vt$<cr>
 onoremap <silent><buffer> a$ :<c-u>normal! F$vf$<cr>
 vnoremap <buffer> i$ T$ot$
 vnoremap <buffer> a$ F$of$
endif

" Commands for asynchronous typesetting
command! -buffer -nargs=? -complete=file ConTeXt call context#typeset(<q-args>)
command! -nargs=0 ConTeXtJobStatus call context#job_status()
command! -nargs=0 ConTeXtStopJobs call context#stop_jobs()

let &cpo = s:cpo_save
unlet s:cpo_save