neosnippet.vim/autoload/neosnippet/view.vim

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"=============================================================================
" FILE: view.vim
" AUTHOR: Shougo Matsushita <Shougo.Matsu@gmail.com>
" Last Modified: 25 Dec 2013.
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" License: MIT license {{{
" Permission is hereby granted, free of charge, to any person obtaining
" a copy of this software and associated documentation files (the
" "Software"), to deal in the Software without restriction, including
" without limitation the rights to use, copy, modify, merge, publish,
" distribute, sublicense, and/or sell copies of the Software, and to
" permit persons to whom the Software is furnished to do so, subject to
" the following conditions:
"
" The above copyright notice and this permission notice shall be included
" in all copies or substantial portions of the Software.
"
" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
" IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
" CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
" TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
" SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
" }}}
"=============================================================================
let s:save_cpo = &cpo
set cpo&vim
function! neosnippet#view#_expand(cur_text, col, trigger_name) "{{{
call s:skip_next_auto_completion()
let snippets = neosnippet#helpers#get_snippets()
if a:trigger_name == '' || !has_key(snippets, a:trigger_name)
let pos = getpos('.')
let pos[2] = len(a:cur_text)+1
call setpos('.', pos)
if pos[2] < col('$')
startinsert
else
startinsert!
endif
return
endif
let snippet = snippets[a:trigger_name]
let cur_text = a:cur_text[: -1-len(a:trigger_name)]
let snip_word = snippet.snip
if snip_word =~ '\\\@<!`.*\\\@<!`'
let snip_word = s:eval_snippet(snip_word)
endif
" Substitute escaped `.
let snip_word = substitute(snip_word, '\\`', '`', 'g')
" Substitute markers.
let snip_word = substitute(snip_word,
\ '\\\@<!'.neosnippet#get_placeholder_marker_substitute_pattern(),
\ '<`\1`>', 'g')
let snip_word = substitute(snip_word,
\ '\\\@<!'.neosnippet#get_mirror_placeholder_marker_substitute_pattern(),
\ '<|\1|>', 'g')
let snip_word = substitute(snip_word,
\ '\\'.neosnippet#get_mirror_placeholder_marker_substitute_pattern().'\|'.
\ '\\'.neosnippet#get_placeholder_marker_substitute_pattern(),
\ '\=submatch(0)[1:]', 'g')
" Insert snippets.
let next_line = getline('.')[a:col-1 :]
let snippet_lines = split(snip_word, '\n', 1)
if empty(snippet_lines)
return
endif
let begin_line = line('.')
let end_line = line('.') + len(snippet_lines) - 1
let snippet_lines[0] = cur_text . snippet_lines[0]
let next_col = len(snippet_lines[-1]) + 1
let snippet_lines[-1] = snippet_lines[-1] . next_line
if has('folding')
" Note: Change foldmethod to "manual". Because, if you use foldmethod is
" expr, whole snippet is visually selected.
let foldmethod_save = &l:foldmethod
let &l:foldmethod = 'manual'
endif
let expand_stack = neosnippet#variables#expand_stack()
try
if len(snippet_lines) > 1
call append('.', snippet_lines[1:])
endif
call setline('.', snippet_lines[0])
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if begin_line != end_line || snippet.options.indent
call s:indent_snippet(begin_line, end_line)
endif
let begin_patterns = (begin_line > 1) ?
\ [getline(begin_line - 1)] : []
let end_patterns = (end_line < line('$')) ?
\ [getline(end_line + 1)] : []
call add(expand_stack, {
\ 'begin_line' : begin_line,
\ 'begin_patterns' : begin_patterns,
\ 'end_line' : end_line,
\ 'end_patterns' : end_patterns,
\ 'holder_cnt' : 1,
\ })
if snip_word =~ neosnippet#get_placeholder_marker_pattern()
call neosnippet#view#_jump(a:cur_text, a:col)
endif
finally
if has('folding')
if foldmethod_save !=# &l:foldmethod
let &l:foldmethod = foldmethod_save
endif
silent! execute begin_line . ',' . end_line . 'foldopen!'
endif
endtry
let &l:iminsert = 0
let &l:imsearch = 0
endfunction"}}}
function! neosnippet#view#_jump(cur_text, col) "{{{
call s:skip_next_auto_completion()
let expand_stack = neosnippet#variables#expand_stack()
" Get patterns and count.
if empty(expand_stack)
return s:search_outof_range(a:col)
endif
let expand_info = expand_stack[-1]
" Search patterns.
let [begin, end] = neosnippet#view#_get_snippet_range(
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\ expand_info.begin_line,
\ expand_info.begin_patterns,
\ expand_info.end_line,
\ expand_info.end_patterns)
if neosnippet#view#_search_snippet_range(
\ begin, end, expand_info.holder_cnt)
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" Next count.
let expand_info.holder_cnt += 1
return 1
endif
" Search placeholder 0.
if neosnippet#view#_search_snippet_range(begin, end, 0)
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return 1
endif
" Not found.
let expand_stack = neosnippet#variables#expand_stack()
let expand_stack = expand_stack[: -2]
return s:search_outof_range(a:col)
endfunction"}}}
function! s:indent_snippet(begin, end) "{{{
if a:begin > a:end
return
endif
let pos = getpos('.')
let neosnippet = neosnippet#variables#current_neosnippet()
let equalprg = &l:equalprg
try
setlocal equalprg=
" Indent begin line?
let begin = (neosnippet.target == '') ? a:begin : a:begin + 1
let base_indent = matchstr(getline(a:begin), '^\s\+')
for line_nr in range(begin, a:end)
call cursor(line_nr, 0)
if getline('.') =~ '^\t\+'
" Delete head tab character.
let current_line = substitute(getline('.'), '^\t', '', '')
if &l:expandtab && current_line =~ '^\t\+'
" Expand tab.
cal setline('.', substitute(current_line,
\ '^\t\+', base_indent . repeat(' ', &shiftwidth *
\ len(matchstr(current_line, '^\t\+'))), ''))
elseif line_nr != a:begin
call setline('.', base_indent . current_line)
endif
else
silent normal! ==
endif
endfor
finally
let &l:equalprg = equalprg
call setpos('.', pos)
endtry
endfunction"}}}
function! neosnippet#view#_get_snippet_range(begin_line, begin_patterns, end_line, end_patterns) "{{{
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let pos = getpos('.')
call cursor(a:begin_line, 0)
if empty(a:begin_patterns)
let begin = line('.') - 50
else
let [begin, _] = searchpos('^' . neosnippet#util#escape_pattern(
\ a:begin_patterns[0]) . '$', 'bnW')
if begin <= 0
let begin = line('.') - 50
endif
endif
if begin <= 0
let begin = 1
endif
call cursor(a:end_line, 0)
if empty(a:end_patterns)
let end = line('.') + 50
else
let [end, _] = searchpos('^' . neosnippet#util#escape_pattern(
\ a:end_patterns[0]) . '$', 'nW')
if end <= 0
let end = line('.') + 50
endif
endif
if end > line('$')
let end = line('$')
endif
call setpos('.', pos)
return [begin, end]
endfunction"}}}
function! neosnippet#view#_search_snippet_range(start, end, cnt, ...) "{{{
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let is_select = get(a:000, 0, 1)
call s:substitute_placeholder_marker(a:start, a:end, a:cnt)
" Search marker pattern.
let pattern = substitute(neosnippet#get_placeholder_marker_pattern(),
\ '\\d\\+', a:cnt, '')
for line in filter(range(a:start, a:end),
\ 'getline(v:val) =~ pattern')
call s:expand_placeholder(a:start, a:end, a:cnt, line, is_select)
return 1
endfor
return 0
endfunction"}}}
function! s:search_outof_range(col) "{{{
call s:substitute_placeholder_marker(1, 0, 0)
let pattern = neosnippet#get_placeholder_marker_pattern()
if search(pattern, 'w') > 0
call s:expand_placeholder(line('.'), 0, '\\d\\+', line('.'))
return 1
endif
let pos = getpos('.')
if a:col == 1
let pos[2] = 1
call setpos('.', pos)
startinsert
elseif a:col >= col('$')
startinsert!
else
let pos[2] = a:col+1
call setpos('.', pos)
startinsert
endif
" Not found.
return 0
endfunction"}}}
function! s:expand_placeholder(start, end, holder_cnt, line, ...) "{{{
let is_select = get(a:000, 0, 1)
let pattern = substitute(neosnippet#get_placeholder_marker_pattern(),
\ '\\d\\+', a:holder_cnt, '')
let current_line = getline(a:line)
let match = match(current_line, pattern)
let neosnippet = neosnippet#variables#current_neosnippet()
let default_pattern = substitute(
\ neosnippet#get_placeholder_marker_default_pattern(),
\ '\\d\\+', a:holder_cnt, '')
let default = substitute(
\ matchstr(current_line, default_pattern),
\ '\\\ze[^\\]', '', 'g')
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let is_target = (default =~ '^TARGET\>' && neosnippet.target != '')
let default = substitute(default, '^TARGET:\?', neosnippet.target, '')
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let neosnippet.selected_text = default
" Substitute marker.
let default = substitute(default,
\ neosnippet#get_placeholder_marker_substitute_pattern(),
\ '<`\1`>', 'g')
let default = substitute(default,
\ neosnippet#get_mirror_placeholder_marker_substitute_pattern(),
\ '<|\1|>', 'g')
" len() cannot use for multibyte.
let default_len = len(substitute(default, '.', 'x', 'g'))
let pos = getpos('.')
let pos[1] = a:line
let pos[2] = match+1
let cnt = s:search_sync_placeholder(a:start, a:end, a:holder_cnt)
if cnt >= 0
let pattern = substitute(neosnippet#get_placeholder_marker_pattern(),
\ '\\d\\+', cnt, '')
call setline(a:line, substitute(current_line, pattern,
\ '<{'.cnt.':'.escape(default, '\').'}>', ''))
let pos[2] += len('<{'.cnt.':')
else
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if is_target
let default = ''
endif
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" Substitute holder.
call setline(a:line,
\ substitute(current_line, pattern, escape(default, '&\'), ''))
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endif
call setpos('.', pos)
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if is_target && cnt < 0
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" Expand target
return s:expand_target_placeholder(a:line, match+1)
endif
if default_len > 0 && is_select
" Select default value.
let len = default_len-1
if &l:selection == 'exclusive'
let len += 1
endif
stopinsert
execute 'normal! v'. repeat('l', len) . "\<C-g>"
elseif pos[2] < col('$')
startinsert
else
startinsert!
endif
endfunction"}}}
function! s:expand_target_placeholder(line, col) "{{{
" Expand target
let neosnippet = neosnippet#variables#current_neosnippet()
let next_line = getline(a:line)[a:col-1 :]
let target_lines = split(neosnippet.target, '\n', 1)
let cur_text = getline(a:line)[: a:col-2]
let target_lines[0] = cur_text . target_lines[0]
let next_col = len(target_lines[-1]) + 1
let target_lines[-1] = target_lines[-1] . next_line
let begin_line = a:line
let end_line = a:line + len(target_lines) - 1
let col = col('.')
try
let base_indent = matchstr(cur_text, '^\s\+')
call setline(a:line, target_lines[0])
if len(target_lines) > 1
call append(a:line, map(target_lines[1:],
\ 'base_indent . v:val'))
endif
call cursor(end_line, 0)
if next_line != ''
startinsert
let col = col('.')
else
startinsert!
let col = col('$')
endif
finally
if has('folding')
silent! execute begin_line . ',' . end_line . 'foldopen!'
endif
endtry
let neosnippet.target = ''
call neosnippet#view#_jump(neosnippet#util#get_cur_text(), col)
endfunction"}}}
function! s:search_sync_placeholder(start, end, number) "{{{
if a:end == 0
" Search in current buffer.
let cnt = matchstr(getline('.'),
\ substitute(neosnippet#get_placeholder_marker_pattern(),
\ '\\d\\+', '\\zs\\d\\+\\ze', ''))
return search(substitute(
\ neosnippet#get_mirror_placeholder_marker_pattern(),
\ '\\d\\+', cnt, ''), 'nw') > 0 ? cnt : -1
endif
let pattern = substitute(
\ neosnippet#get_mirror_placeholder_marker_pattern(),
\ '\\d\\+', a:number, '')
for line in filter(range(a:start, a:end),
\ 'getline(v:val) =~ pattern')
return a:number
endfor
return -1
endfunction"}}}
function! s:substitute_placeholder_marker(start, end, snippet_holder_cnt) "{{{
if a:snippet_holder_cnt > 0
let cnt = a:snippet_holder_cnt-1
let sync_marker = substitute(neosnippet#get_sync_placeholder_marker_pattern(),
\ '\\d\\+', cnt, '')
let mirror_marker = substitute(
\ neosnippet#get_mirror_placeholder_marker_pattern(),
\ '\\d\\+', cnt, '')
let line = a:start
for line in range(a:start, a:end)
if getline(line) =~ sync_marker
let sub = escape(matchstr(getline(line),
\ substitute(neosnippet#get_sync_placeholder_marker_default_pattern(),
\ '\\d\\+', cnt, '')), '/\')
silent execute printf('%d,%ds/\m' . mirror_marker . '/%s/'
\ . (&gdefault ? '' : 'g'), a:start, a:end, sub)
call setline(line, substitute(getline(line), sync_marker, sub, ''))
endif
endfor
elseif search(neosnippet#get_sync_placeholder_marker_pattern(), 'wb') > 0
let sub = escape(matchstr(getline('.'),
\ neosnippet#get_sync_placeholder_marker_default_pattern()), '/\')
let cnt = matchstr(getline('.'),
\ substitute(neosnippet#get_sync_placeholder_marker_pattern(),
\ '\\d\\+', '\\zs\\d\\+\\ze', ''))
let mirror_marker = substitute(
\ neosnippet#get_mirror_placeholder_marker_pattern(),
\ '\\d\\+', cnt, '')
silent execute printf('%%s/\m' . mirror_marker . '/%s/'
\ . (&gdefault ? 'g' : ''), sub)
let sync_marker = substitute(neosnippet#get_sync_placeholder_marker_pattern(),
\ '\\d\\+', cnt, '')
call setline('.', substitute(getline('.'), sync_marker, sub, ''))
endif
endfunction"}}}
function! s:eval_snippet(snippet_text) "{{{
let snip_word = ''
let prev_match = 0
let match = match(a:snippet_text, '\\\@<!`.\{-}\\\@<!`')
while match >= 0
if match - prev_match > 0
let snip_word .= a:snippet_text[prev_match : match - 1]
endif
let prev_match = matchend(a:snippet_text,
\ '\\\@<!`.\{-}\\\@<!`', match)
let snip_word .= eval(
\ a:snippet_text[match+1 : prev_match - 2])
let match = match(a:snippet_text, '\\\@<!`.\{-}\\\@<!`', prev_match)
endwhile
if prev_match >= 0
let snip_word .= a:snippet_text[prev_match :]
endif
return snip_word
endfunction"}}}
function! s:skip_next_auto_completion() "{{{
" Skip next auto completion.
if exists('*neocomplcache#skip_next_complete')
call neocomplcache#skip_next_complete()
endif
if exists('*neocomplete#skip_next_complete')
call neocomplete#skip_next_complete()
endif
let neosnippet = neosnippet#variables#current_neosnippet()
let neosnippet.trigger = 0
endfunction"}}}
let &cpo = s:save_cpo
unlet s:save_cpo
" vim: foldmethod=marker