X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/63aabf4b47fc944afc210b974574d158eb7a08d0..8b591b760f4c2024197356c6832aeeaf6ab3a44a:/ftplugin/markdown.vim

diff --git a/ftplugin/markdown.vim b/ftplugin/markdown.vim
index 7e2b35e..9ae9967 100644
--- a/ftplugin/markdown.vim
+++ b/ftplugin/markdown.vim
@@ -305,8 +305,11 @@ function! s:Toc(...)
 
     let b:bufnr = bufnr('%')
     let b:fenced_block = 0
+    let l:front_matter = 0
     let b:header_list = []
     let l:header_max_len = 0
+    let g:vim_markdown_toc_autofit = get(g:, "vim_markdown_toc_autofit", 0)
+    let l:vim_markdown_frontmatter = get(g:, "vim_markdown_frontmatter", 0)
     for i in range(1, line('$'))
         let l:lineraw = getline(i)
         let l:l1 = getline(i+1)
@@ -317,16 +320,31 @@ function! s:Toc(...)
             elseif b:fenced_block == 1
                 let b:fenced_block = 0
             endif
+        elseif l:vim_markdown_frontmatter == 1
+            if l:front_matter == 1
+                if l:line == '---'
+                    let l:front_matter = 0
+                endif
+            elseif i == 1
+                if l:line == '---'
+                    let l:front_matter = 1
+                endif
+            endif
         endif
-        if l:line =~ '^#\+' || l:l1 =~ '^==\+\s*' || l:l1 =~ '^--\+\s*'
+        if l:line =~ '^#\+' || (l:l1 =~ '^=\+\s*$' || l:l1 =~ '^-\+\s*$') && l:line =~ '^\S'
             let b:is_header = 1
         else
             let b:is_header = 0
         endif
-        if b:is_header == 1 && b:fenced_block == 0
+        if b:is_header == 1 && b:fenced_block == 0 && l:front_matter == 0
             " append line to location list
             let b:item = {'lnum': i, 'text': l:line, 'valid': 1, 'bufnr': b:bufnr, 'col': 1}
             let b:header_list = b:header_list + [b:item]
+            " keep track of the longest header size (heading level + title)
+            let b:total_len = stridx(l:line, ' ') + len(l:line)
+            if b:total_len > l:header_max_len
+                let l:header_max_len = b:total_len
+            endif
         endif
     endfor
     if len(b:header_list) == 0
@@ -339,7 +357,12 @@ function! s:Toc(...)
         lopen
     elseif l:window_type ==# 'vertical'
         vertical lopen
-        let &winwidth=(&columns/2)
+        " auto-fit toc window when possible to shrink it
+        if (&columns/2) > l:header_max_len && g:vim_markdown_toc_autofit == 1
+            execute 'vertical resize ' . (l:header_max_len + 1)
+        else
+            execute 'vertical resize ' . (&columns/2)
+        endif
     elseif l:window_type ==# 'tab'
         tab lopen
     else