Add support for strike through which is supported by GFM but not in

[etc/vim.git] / indent / markdown.vim

diff --git a/indent/markdown.vim b/indent/markdown.vim
index fb8d95d2453213aa19ae39aed8480ff1972522ba..103e160f92fd848427ec321543562fe64094758d 100755 (executable)
--- a/indent/markdown.vim
+++ b/indent/markdown.vim
@@ -5,41 +5,70 @@ setlocal indentexpr=GetMarkdownIndent()
 setlocal nolisp
 setlocal autoindent
 
+" Automatically insert bullets
+setlocal formatoptions+=r
+" Do not automatically insert bullets when auto-wrapping with text-width
+setlocal formatoptions-=c
+" Accept various markers as bullets
+setlocal comments=b:*,b:+,b:-
+
+" Automatically continue blockquote on line break
+setlocal comments+=b:>
+
 " Only define the function once
 if exists("*GetMarkdownIndent") | finish | endif
 
-function! s:is_li_start(line)
+function! s:IsMkdCode(lnum)
+    let name = synIDattr(synID(a:lnum, 1, 0), 'name')
+    return (name =~ '^mkd\%(Code$\|Snippet\)' || name != '' && name !~ '^\%(mkd\|html\)')
+endfunction
+
+function! s:IsLiStart(line)
     return a:line !~ '^ *\([*-]\)\%( *\1\)\{2}\%( \|\1\)*$' &&
       \    a:line =~ '^\s*[*+-] \+'
 endfunction
 
-function! s:is_blank_line(line)
+function! s:IsHeaderLine(line)
+    return a:line =~ '^\s*#'
+endfunction
+
+function! s:IsBlankLine(line)
     return a:line =~ '^$'
 endfunction
 
-function! s:prevnonblank(lnum)
+function! s:PrevNonBlank(lnum)
     let i = a:lnum
-    while i > 1 && s:is_blank_line(getline(i))
+    while i > 1 && s:IsBlankLine(getline(i))
         let i -= 1
     endwhile
     return i
 endfunction
 
 function GetMarkdownIndent()
-    let list_ind = 4
+    if v:lnum > 2 && s:IsBlankLine(getline(v:lnum - 1)) && s:IsBlankLine(getline(v:lnum - 2))
+        return 0
+    endif
+    let list_ind = get(g:, "vim_markdown_new_list_item_indent", 4)
     " Find a non-blank line above the current line.
-    let lnum = prevnonblank(v:lnum - 1)
+    let lnum = s:PrevNonBlank(v:lnum - 1)
     " At the start of the file use zero indent.
     if lnum == 0 | return 0 | endif
     let ind = indent(lnum)
     let line = getline(lnum)    " Last line
     let cline = getline(v:lnum) " Current line
-    if s:is_li_start(cline) 
+    if s:IsLiStart(cline)
         " Current line is the first line of a list item, do not change indent
         return indent(v:lnum)
-    elseif s:is_li_start(line)
-        " Last line is the first line of a list item, increase indent
-        return ind + list_ind
+    elseif s:IsHeaderLine(cline) && !s:IsMkdCode(v:lnum)
+        " Current line is the header, do not indent
+        return 0
+    elseif s:IsLiStart(line)
+        if s:IsMkdCode(lnum)
+            return ind
+        else
+            " Last line is the first line of a list item, increase indent
+            return ind + list_ind
+        end
     else
         return ind
     endif