From ec26576455628e716467b657c170c7ba4c3375d1 Mon Sep 17 00:00:00 2001
From: Yasuhiro Matsumoto <mattn.jp@gmail.com>
Date: Fri, 1 Jul 2016 19:02:41 +0900
Subject: pattern input

---
 autoload/sonictemplate.vim | 68 +++++++++++++++++++++++++++++++++++++++++++++-
 plugin/sonictemplate.vim   |  9 ++++++
 2 files changed, 76 insertions(+), 1 deletion(-)

diff --git a/autoload/sonictemplate.vim b/autoload/sonictemplate.vim
index dc4f33a..2db9d77 100644
--- a/autoload/sonictemplate.vim
+++ b/autoload/sonictemplate.vim
@@ -117,7 +117,7 @@ function! s:get_candidate(fts, lead)
   endif
   return candidate
 endfunction
- 
+
 function! sonictemplate#complete(lead, cmdline, curpos) abort
   return s:get_candidate([&ft, s:get_filetype(), sonictemplate#get_filetype()], a:lead)
 endfunction
@@ -315,6 +315,72 @@ function! sonictemplate#apply(name, mode, ...) abort
   endif
 endfunction
 
+let s:pat = {}
+
+function! sonictemplate#pattern()
+  if !has_key(s:pat, &ft)
+    return ''
+  endif
+  let line = getline('.')[:col('.')]
+  for k in keys(s:pat[&ft])
+    let m = matchstr(line, k)
+    if len(m) > 0
+      let ml = matchlist(line, k)
+      let line = line[:-len(m)-1]
+      let c = join(s:pat[&ft][k], "\n")
+      for i in range(1, 9)
+        let c = substitute(c, '{{$' . i . '}}', ml[i], 'g')
+      endfor
+      if line !~ '^\s*$'
+        let indent = matchstr(line, '^\(\s*\)')
+        let lhs = col('.') > 1 ? line[:col('.')-2] : ''
+        let rhs = line[len(lhs):]
+        let lhs = lhs[len(indent):]
+        let c = lhs . c . rhs
+      endif
+      let c = join(split(c, "\n"), "")
+      call setline('.', line)
+      silent! exe "normal! a\<c-r>=c\<cr>"
+      if stridx(c, '{{_cursor_}}') != -1
+        silent! call search('{{_cursor_}}\zs', 'w')
+        silent! foldopen
+        silent! call feedkeys(repeat("\<bs>", 12))
+      endif
+      break
+    endif
+  endfor
+  return ''
+endfunction
+
+function! sonictemplate#load_pattern()
+  let ft = &ft
+  let tmp = []
+  for tmpldir in s:tmpldir
+    let tmp += split(globpath(join([tmpldir, ft], '/'), 'pattern.tpl'), "\n")
+  endfor
+  if len(tmp) == 0
+    return
+  endif
+  let s:pat[ft] = {}
+  for f in tmp
+    let k = ''
+    let l = []
+    for line in add(readfile(f), '__END__')
+      if line == ''
+        continue
+      elseif line !~ '^\t'
+        if k != ''
+          let s:pat[ft][k] = l
+        endif
+        let k = line
+        let l = []
+      else
+        call add(l, line[1:])
+      endif
+    endfor
+  endfor
+endfunction
+
 let &cpo = s:save_cpo
 unlet s:save_cpo
 
diff --git a/plugin/sonictemplate.vim b/plugin/sonictemplate.vim
index 717bde2..aa5873b 100644
--- a/plugin/sonictemplate.vim
+++ b/plugin/sonictemplate.vim
@@ -43,6 +43,15 @@ else
   exe "inoremap" g:sonictemplate_intelligent_key "<c-r>=sonictemplate#select_intelligent('i')<cr>"
 endif
 
+" TODO fix better name
+if get(g:, 'sonictemplate_enable_pattern', 0) == 0
+  augroup sonictemplate
+    au! filetype * silent! call sonictemplate#load_pattern()
+  augroup END
+  inoremap <plug>(sonictemplate-pattern) <c-r>=sonictemplate#pattern()<cr>
+  imap <unique> <c-y><c-b> <plug>(sonictemplate-pattern)
+endif
+
 let &cpo = s:save_cpo
 unlet s:save_cpo
 
-- 
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