Fix folding broken by other syntax highlighting.

[etc/vim.git] / after / ftplugin / markdown.vim

diff --git a/after/ftplugin/markdown.vim b/after/ftplugin/markdown.vim
index cdf0a2654a40c037287d0cf3f57ff6d34d7902fb..41dfd944e971a2c20ee44eea1e467b689df35457 100644 (file)
--- a/after/ftplugin/markdown.vim
+++ b/after/ftplugin/markdown.vim
@@ -125,7 +125,11 @@ else
         if l1 =~ '^#' && !s:is_mkdCode(a:lnum)
             " fold level according to option
             if s:vim_markdown_folding_level == 1 || matchend(l1, '^#\+') > s:vim_markdown_folding_level
-                return -1
+                if a:lnum == line('$')
+                    return matchend(l1, '^#\+') - 1
+                else
+                    return -1
+                endif
             else
                 " headers are not folded
                 return 0
@@ -133,7 +137,7 @@ else
         endif
 
         if l0 =~ '^#' && !s:is_mkdCode(a:lnum-1)
-            " current line starts with hashes
+            " previous line starts with hashes
             return '>'.matchend(l0, '^#\+')
         else
             " keep previous foldlevel
@@ -147,10 +151,20 @@ let b:fenced_block = 0
 let b:front_matter = 0
 let s:vim_markdown_folding_level = get(g:, "vim_markdown_folding_level", 1)
 
-if !get(g:, "vim_markdown_folding_disabled", 0)
-    setlocal foldexpr=Foldexpr_markdown(v:lnum)
-    setlocal foldmethod=expr
-    if get(g:, "vim_markdown_folding_style_pythonic", 0) && get(g:, "vim_markdown_override_foldtext", 1)
-        setlocal foldtext=Foldtext_markdown()
-    endif
-endif
+function! s:MarkdownSetupFolding()
+  if !get(g:, "vim_markdown_folding_disabled", 0)
+      setlocal foldexpr=Foldexpr_markdown(v:lnum)
+      setlocal foldmethod=expr
+      if get(g:, "vim_markdown_folding_style_pythonic", 0) && get(g:, "vim_markdown_override_foldtext", 1)
+          setlocal foldtext=Foldtext_markdown()
+      endif
+  endif
+endfunction
+call s:MarkdownSetupFolding()
+augroup Mkd
+    " These autocmds need to be kept in sync with the autocmds calling
+    " s:MarkdownRefreshSyntax in ftplugin/markdown.vim.
+    autocmd BufWinEnter,BufWritePost <buffer> call s:MarkdownSetupFolding()
+    autocmd InsertEnter,InsertLeave <buffer> call s:MarkdownSetupFolding()
+    autocmd CursorHold,CursorHoldI <buffer> call s:MarkdownSetupFolding()
+augroup END