Merge pull request #243 from alexconst/feat/toc_autofit

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

diff --git a/after/ftplugin/markdown.vim b/after/ftplugin/markdown.vim
index 84b6a4f57179bc93b1479ecc147fbd20b4997106..777ddace57db29e70dde6ce2f9fec97209c72e7b 100644 (file)
--- a/after/ftplugin/markdown.vim
+++ b/after/ftplugin/markdown.vim
@@ -13,8 +13,28 @@ endfunction
 
 if get(g:, "vim_markdown_folding_style_pythonic", 0)
     function! Foldexpr_markdown(lnum)
+        let l1 = getline(a:lnum)
+        " keep track of fenced code blocks
+        if l1 =~ '````*' || l1 =~ '\~\~\~\~*'
+            if b:fenced_block == 0
+                let b:fenced_block = 1
+            elseif b:fenced_block == 1
+                let b:fenced_block = 0
+            endif
+        endif
+
+        if b:fenced_block == 1
+            if a:lnum == 1
+                " fold any 'preamble'
+                return '>1'
+            else
+                " keep previous foldlevel
+                return '='
+            endif
+        endif
+
         let l2 = getline(a:lnum+1)
-        if  l2 =~ '^==\+\s*' && !s:is_mkdCode(a:lnum+1)
+        if l2 =~ '^==\+\s*' && !s:is_mkdCode(a:lnum+1)
             " next line is underlined (level 1)
             return '>0'
         elseif l2 =~ '^--\+\s*' && !s:is_mkdCode(a:lnum+1)
@@ -22,7 +42,6 @@ if get(g:, "vim_markdown_folding_style_pythonic", 0)
             return '>1'
         endif
 
-        let l1 = getline(a:lnum)
         if l1 =~ '^#' && !s:is_mkdCode(a:lnum)
             " current line starts with hashes
             return '>'.(matchend(l1, '^#\+') - 1)
@@ -53,8 +72,9 @@ else
         else
             let l0 = getline(a:lnum-1)
         endif
+
         " keep track of fenced code blocks
-        if l0 =~ '````*' || l0 =~ '~~~~*'
+        if l0 =~ '````*' || l0 =~ '\~\~\~\~*'
             if b:fenced_block == 0
                 let b:fenced_block = 1
             elseif b:fenced_block == 1
@@ -62,13 +82,18 @@ else
             endif
         endif
 
+        if b:fenced_block == 1
+            " keep previous foldlevel
+            return '='
+        endif
+
         let l2 = getline(a:lnum+1)
         if  l2 =~ '^==\+\s*' && !s:is_mkdCode(a:lnum+1)
             " next line is underlined (level 1)
             return '>1'
         elseif l2 =~ '^--\+\s*' && !s:is_mkdCode(a:lnum+1)
             " next line is underlined (level 2)
-            if g:vim_markdown_folding_level == 2
+            if g:vim_markdown_folding_level >= 2
                 return '>1'
             else
                 return '>2'
@@ -82,16 +107,12 @@ else
             if g:vim_markdown_folding_level == 1 || l:level > g:vim_markdown_folding_level
                 return -1
             else
-                " code blocks are always folded
-                return b:fenced_block
+                " headers are not folded
+                return 0
             endif
         endif
 
         if l0 =~ '^#' && !s:is_mkdCode(a:lnum-1)
-            " collapse comments in fenced code blocks into a single fold
-            if b:fenced_block == 1
-                return 1
-            endif
             " current line starts with hashes
             return '>'.matchend(l0, '^#\+')
         else