neovim/runtime/autoload/tutor.vim
2016-01-25 17:44:46 +01:00

355 lines
11 KiB
VimL

" vim: fdm=marker et ts=4 sw=4
" Setup: {{{1
function! tutor#SetupVim()
if &columns < 90
set columns=90
endif
if !exists('g:did_load_ftplugin') || g:did_load_ftplugin != 1
filetype plugin on
endif
if has('syntax')
if !exists('g:syntax_on') || g:syntax_on == 0
syntax on
endif
endif
endfunction
" Mappings: {{{1
function! s:CheckMaps()
nmap
endfunction
function! s:MapKeyWithRedirect(key, cmd)
if maparg(a:key) !=# ''
redir => l:keys
silent call s:CheckMaps()
redir END
let l:key_list = split(l:keys, '\n')
let l:raw_map = filter(copy(l:key_list), "v:val =~# '\\* ".a:key."'")
if len(l:raw_map) == 0
exe "nnoremap <buffer> <expr> ".a:key." ".a:cmd
return
endif
let l:map_data = split(l:raw_map[0], '\s*')
exe "nnoremap <buffer> <expr> ".l:map_data[0]." ".a:cmd
else
exe "nnoremap <buffer> <expr> ".a:key." ".a:cmd
endif
endfunction
function! tutor#MouseDoubleClick()
if foldclosed(line('.')) > -1
normal! zo
else
if match(getline('.'), '^#\{1,} ') > -1
normal! zc
else
call tutor#FollowLink(0)
endif
endif
endfunction
function! tutor#InjectCommand()
let l:cmd = substitute(getline('.'), '^\s*', '', '')
exe l:cmd
redraw | echohl WarningMsg | echon "tutor: ran" | echohl None | echon " " | echohl Statement | echon l:cmd
endfunction
function! tutor#SetNormalMappings()
call s:MapKeyWithRedirect('l', 'tutor#ForwardSkipConceal(v:count1)')
call s:MapKeyWithRedirect('h', 'tutor#BackwardSkipConceal(v:count1)')
call s:MapKeyWithRedirect('<right>', 'tutor#ForwardSkipConceal(v:count1)')
call s:MapKeyWithRedirect('<left>', 'tutor#BackwardSkipConceal(v:count1)')
nnoremap <silent> <buffer> <CR> :call tutor#FollowLink(0)<cr>
nnoremap <silent> <buffer> <2-LeftMouse> :call tutor#MouseDoubleClick()<cr>
nnoremap <buffer> >> :call tutor#InjectCommand()<cr>
endfunction
function! tutor#SetSampleTextMappings()
noremap <silent> <buffer> A :if match(getline('.'), '^--->') > -1 \| call search('\s{\@=', 'Wc') \| startinsert \| else \| startinsert! \| endif<cr>
noremap <silent> <buffer> $ :if match(getline('.'), '^--->') > -1 \| call search('.\s{\@=', 'Wc') \| else \| call search('$', 'Wc') \| endif<cr>
onoremap <silent> <buffer> $ :if match(getline('.'), '^--->') > -1 \| call search('.\s{\@=', 'Wc') \| else \| call search('$', 'Wc') \| endif<cr>
noremap <silent> <buffer> ^ :if match(getline('.'), '^--->') > -1 \| call search('\(--->\s\)\@<=.', 'bcW') \| else \| call search('^', 'bcW') \|endif<cr>
onoremap <silent> <buffer> ^ :if match(getline('.'), '^--->') > -1 \| call search('\(--->\s\)\@<=.', 'bcW') \| else \| call search('^', 'bcW') \|endif<cr>
nmap <silent> <buffer> 0 ^<esc>
nmap <silent> <buffer> <Home> ^<esc>
nmap <silent> <buffer> <End> $
imap <silent> <buffer> <Home> <esc>^<esc>:startinsert<cr>
imap <silent> <buffer> <End> <esc>$:startinsert<cr>
noremap <silent> <buffer> I :exe "normal! 0" \| startinsert<cr>
endfunction
" Navigation: {{{1
" taken from http://stackoverflow.com/a/24224578
function! tutor#ForwardSkipConceal(count)
let cnt=a:count
let mvcnt=0
let c=col('.')
let l=line('.')
let lc=col('$')
let line=getline('.')
while cnt
if c>=lc
let mvcnt+=cnt
break
endif
if stridx(&concealcursor, 'n')==-1
let isconcealed=0
else
let [isconcealed, cchar, group] = synconcealed(l, c)
endif
if isconcealed
let cnt-=strchars(cchar)
let oldc=c
let c+=1
while c < lc
let [isconcealed2, cchar2, group2] = synconcealed(l, c)
if !isconcealed2 || cchar2 != cchar
break
endif
let c+= 1
endwhile
let mvcnt+=strchars(line[oldc-1:c-2])
else
let cnt-=1
let mvcnt+=1
let c+=len(matchstr(line[c-1:], '.'))
endif
endwhile
return mvcnt.'l'
endfunction
function! tutor#BackwardSkipConceal(count)
let cnt=a:count
let mvcnt=0
let c=col('.')
let l=line('.')
let lc=0
let line=getline('.')
while cnt
if c<=1
let mvcnt+=cnt
break
endif
if stridx(&concealcursor, 'n')==-1 || c == 0
let isconcealed=0
else
let [isconcealed, cchar, group]=synconcealed(l, c-1)
endif
if isconcealed
let cnt-=strchars(cchar)
let oldc=c
let c-=1
while c>1
let [isconcealed2, cchar2, group2] = synconcealed(l, c-1)
if !isconcealed2 || cchar2 != cchar
break
endif
let c-=1
endwhile
let c = max([c, 1])
let mvcnt+=strchars(line[c-1:oldc-2])
else
let cnt-=1
let mvcnt+=1
let c-=len(matchstr(line[:c-2], '.$'))
endif
endwhile
return mvcnt.'h'
endfunction
" Hypertext: {{{1
function! tutor#FollowLink(force)
let l:stack_s = join(map(synstack(line('.'), col('.')), 'synIDattr(v:val, "name")'), '')
if l:stack_s =~# 'tutorLink'
let l:link_start = searchpairpos('\[', '', ')', 'nbcW')
let l:link_end = searchpairpos('\[', '', ')', 'ncW')
if l:link_start[0] == l:link_end[0]
let l:linkData = getline(l:link_start[0])[l:link_start[1]-1:l:link_end[1]-1]
else
return
endif
let l:target = matchstr(l:linkData, '(\@<=.*)\@=')
if a:force != 1 && match(l:target, '\*.\+\*') > -1
call cursor(l:link_start[0], l:link_end[1])
call search(l:target, '')
normal! ^
elseif a:force != 1 && match(l:target, '^@tutor:') > -1
let l:tutor = matchstr(l:target, '@tutor:\zs.*')
exe "Tutor ".l:tutor
else
exe "help ".l:target
endif
endif
endfunction
" Folding And Info: {{{1
function! tutor#TutorFolds()
if getline(v:lnum) =~# '^#\{1,6}'
return ">". len(matchstr(getline(v:lnum), '^#\{1,6}'))
else
return "="
endif
endfunction
function! tutor#InfoText()
let l:info_parts = []
if exists('b:tutor_infofunc')
call add(l:info_parts, eval(b:tutor_infofunc.'()'))
endif
return join(l:info_parts, " ")
endfunction
" Marks {{{1
function! tutor#PlaceXMarks()
call cursor(1, 1)
let b:tutor_sign_id = 1
while search('^--->', 'W') > 0
call tutor#CheckText(getline('.'))
let b:tutor_sign_id+=1
endwhile
call cursor(1, 1)
endfunction
function! tutor#CheckText(text)
if match(a:text, '{expect:ANYTHING}\s*$') == -1
if match(getline('.'), '^--->\s*$') > -1
exe "sign place ".b:tutor_sign_id." line=".line('.')." name=tutorbad buffer=".bufnr('%')
else
if match(getline('.'), '|expect:.\+|') == -1
let l:cur_text = matchstr(a:text, '---> \zs.\{-}\ze {expect:')
let l:expected_text = matchstr(a:text, '{expect:\zs.*\ze}\s*$')
else
let l:cur_text = matchstr(a:text, '---> \zs.\{-}\ze |expect:')
let l:expected_text = matchstr(a:text, '|expect:\zs.*\ze|\s*$')
endif
if l:cur_text ==# l:expected_text
exe "sign place ".b:tutor_sign_id." line=".line('.')." name=tutorok buffer=".bufnr('%')
else
exe "sign place ".b:tutor_sign_id." line=".line('.')." name=tutorbad buffer=".bufnr('%')
endif
endif
endif
endfunction
function! tutor#OnTextChanged()
let l:text = getline('.')
if match(l:text, '^--->') > -1
call tutor#CheckText(l:text)
endif
endfunction
" Tutor Cmd: {{{1
function! s:Locale()
if exists('v:lang') && v:lang =~ '\a\a'
let l:lang = v:lang
elseif $LC_ALL =~ '\a\a'
let l:lang = $LC_ALL
elseif $LANG =~ '\a\a'
let l:lang = $LANG
else
let l:lang = 'en_US'
endif
return split(l:lang, '_')
endfunction
function! s:GlobPath(lp, pat)
if version >= 704 && has('patch279')
return globpath(a:lp, a:pat, 1, 1)
else
return split(globpath(a:lp, a:pat, 1), '\n')
endif
endfunction
function! s:Sort(a, b)
let mod_a = fnamemodify(a:a, ':t')
let mod_b = fnamemodify(a:b, ':t')
if mod_a == mod_b
let retval = 0
elseif mod_a > mod_b
if match(mod_a, '^vim-') > -1 && match(mod_b, '^vim-') == -1
let retval = -1
else
let retval = 1
endif
else
if match(mod_b, '^vim-') > -1 && match(mod_a, '^vim-') == -1
let retval = 1
else
let retval = -1
endif
endif
return retval
endfunction
function! s:GlobTutorials(name)
" search for tutorials:
" 1. non-localized
let l:tutors = s:GlobPath(&rtp, 'tutor/'.a:name.'.tutor')
" 2. localized for current locale
let l:locale_tutors = s:GlobPath(&rtp, 'tutor/'.s:Locale()[0].'/'.a:name.'.tutor')
" 3. fallback to 'en'
if len(l:locale_tutors) == 0
let l:locale_tutors = s:GlobPath(&rtp, 'tutor/en/'.a:name.'.tutor')
endif
call extend(l:tutors, l:locale_tutors)
return uniq(sort(l:tutors, 's:Sort'), 's:Sort')
endfunction
function! tutor#TutorCmd(tutor_name)
if match(a:tutor_name, '[[:space:]]') > 0
echom "Only one argument accepted (check spaces)"
return
endif
if a:tutor_name == ''
let l:tutor_name = 'vim-01-beginner.tutor'
else
let l:tutor_name = a:tutor_name
endif
if match(l:tutor_name, '\.tutor$') > 0
let l:tutor_name = fnamemodify(l:tutor_name, ':r')
endif
let l:tutors = s:GlobTutorials(l:tutor_name)
if len(l:tutors) == 0
echom "No tutorial with that name found"
return
endif
if len(l:tutors) == 1
let l:to_open = l:tutors[0]
else
let l:idx = 0
let l:candidates = ['Several tutorials with that name found. Select one:']
for candidate in map(copy(l:tutors),
\'fnamemodify(v:val, ":h:h:t")."/".s:Locale()[0]."/".fnamemodify(v:val, ":t")')
let l:idx += 1
call add(l:candidates, l:idx.'. '.candidate)
endfor
let l:tutor_to_open = inputlist(l:candidates)
let l:to_open = l:tutors[l:tutor_to_open-1]
endif
call tutor#SetupVim()
exe "edit ".l:to_open
endfunction
function! tutor#TutorCmdComplete(lead,line,pos)
let l:tutors = s:GlobTutorials('*')
let l:names = uniq(sort(map(l:tutors, 'fnamemodify(v:val, ":t:r")'), 's:Sort'))
return join(l:names, "\n")
endfunction