Merge pull request #170 from sim590/fix-toc-nomodifiable

[etc/vim.git] / ftplugin / mkd.vim

diff --git a/ftplugin/mkd.vim b/ftplugin/mkd.vim
index ee861e7dc2ea4921e2eb8de2c9a33714d56e1997..63d7914d47d76f889313efc25fa4863f0be5b118 100644 (file)
--- a/ftplugin/mkd.vim
+++ b/ftplugin/mkd.vim
@@ -47,12 +47,12 @@
 
 " For each level, contains the regexp that matches at that level only.
 let s:levelRegexpDict = {
-    \ 1: '\v^(#[^#]|.+\n\=+$)',
-    \ 2: '\v^(##[^#]|.+\n-+$)',
-    \ 3: '\v^###[^#]',
-    \ 4: '\v^####[^#]',
-    \ 5: '\v^#####[^#]',
-    \ 6: '\v^######[^#]'
+    \ 1: '\v^(#[^#]@=|.+\n\=+$)',
+    \ 2: '\v^(##[^#]@=|.+\n-+$)',
+    \ 3: '\v^###[^#]@=',
+    \ 4: '\v^####[^#]@=',
+    \ 5: '\v^#####[^#]@=',
+    \ 6: '\v^######[^#]@='
 \ }
 
 " Maches any header level of any type.
@@ -302,27 +302,26 @@ function! s:Markdown_Toc(...)
     endif
 
     try
-        silent vimgrep /\(^\S.*\(\n[=-]\+\)\@=\|^#\+\)/ %
+        silent lvimgrep /\(^\S.*\(\n[=-]\+\n\)\@=\|^#\+\)/ %
     catch /E480/
         echom "Toc: No headers."
         return
     endtry
 
     if l:window_type ==# 'horizontal'
-        copen
+        lopen
     elseif l:window_type ==# 'vertical'
-        vertical copen
+        vertical lopen
         let &winwidth=(&columns/2)
     elseif l:window_type ==# 'tab'
-        tab copen
+        tab lopen
     else
-        copen
+        lopen
     endif
-    set modifiable
-    %s/\v^([^|]*\|){2,2} #//
+    setlocal modifiable
     for i in range(1, line('$'))
-        " this is the quickfix data for the current item
-        let d = getqflist()[i-1]
+        " this is the location-list data for the current item
+        let d = getloclist(0)[i-1]
         " atx headers
         if match(d.text, "^#") > -1
             let l:level = len(matchstr(d.text, '#*', 'g'))-1
@@ -339,8 +338,8 @@ function! s:Markdown_Toc(...)
         endif
         call setline(i, repeat('  ', l:level). d.text)
     endfor
-    set nomodified
-    set nomodifiable
+    setlocal nomodified
+    setlocal nomodifiable
     normal! gg
 endfunction
 
@@ -358,6 +357,59 @@ function! s:MapNormVis(rhs,lhs)
     execute 'vn <buffer><silent> ' . a:rhs . ' <esc>:call <sid>VisMove(''' . a:lhs . ''')<cr>'
 endfunction
 
+" Convert Setex headers in range `line1 .. line2` to Atx.
+" Returns the number of conversions.
+function! s:SetexToAtx(line1, line2)
+    let l:originalNumLines = line('$')
+    execute 'silent! ' . a:line1 . ',' . a:line2 . 'substitute/\v(.*\S.*)\n\=+$/# \1/'
+    execute 'silent! ' . a:line1 . ',' . a:line2 . 'substitute/\v(.*\S.*)\n-+$/## \1/'
+    return l:originalNumLines - line('$')
+endfunction
+
+" If `a:1` is 0, decrease the level of all headers in range `line1 .. line2`.
+" Otherwise, increase the level. `a:1` defaults to `0`.
+function! s:HeaderDecrease(line1, line2, ...)
+    if a:0 > 0
+        let l:increase = a:1
+    else
+        let l:increase = 0
+    endif
+    if l:increase
+        let l:forbiddenLevel = 6
+        let l:replaceLevels = [5, 1]
+        let l:levelDelta = 1
+    else
+        let l:forbiddenLevel = 1
+        let l:replaceLevels = [2, 6]
+        let l:levelDelta = -1
+    endif
+    for l:line in range(a:line1, a:line2)
+        if join(getline(l:line, l:line + 1), "\n") =~ s:levelRegexpDict[l:forbiddenLevel]
+            echomsg 'There is an h' . l:forbiddenLevel . ' at line ' . l:line . '. Aborting.'
+            return
+        endif
+    endfor
+    let l:numSubstitutions = s:SetexToAtx(a:line1, a:line2)
+    for l:level in range(replaceLevels[0], replaceLevels[1], -l:levelDelta)
+        execute 'silent! ' . a:line1 . ',' . (a:line2 - l:numSubstitutions) . 'substitute/' . s:levelRegexpDict[l:level] . '/' . repeat('#', l:level + l:levelDelta) . '/g'
+    endfor
+endfunction
+
+" Format table under cursor.
+" Depends on Tabularize.
+function! s:TableFormat()
+  let l:pos = getpos('.')
+  normal! {
+  " Search instead of `normal! j` because of the table at beginning of file edge case.
+  call search('|')
+  normal! j
+  " Remove everything that is not a pipe othewise well formated tables would grow
+  " because of addition of 2 spaces on the separator line by Tabularize /|.
+  s/[^|]//g
+  Tabularize /|
+  s/ /-/g
+  call setpos('.', l:pos)
+endfunction
 
 call <sid>MapNormVis('<Plug>(Markdown_MoveToNextHeader)', '<sid>Markdown_MoveToNextHeader')
 call <sid>MapNormVis('<Plug>(Markdown_MoveToPreviousHeader)', '<sid>Markdown_MoveToPreviousHeader')
@@ -384,6 +436,10 @@ if !get(g:, 'vim_markdown_no_default_key_mappings', 0)
     vmap <buffer> ]c <Plug>(Markdown_MoveToCurHeader)
 endif
 
+command! -buffer -range=% HeaderDecrease call s:HeaderDecrease(<line1>, <line2>)
+command! -buffer -range=% HeaderIncrease call s:HeaderDecrease(<line1>, <line2>, 1)
+command! -buffer -range=% SetexToAtx call s:SetexToAtx(<line1>, <line2>)
+command! -buffer TableFormat call s:TableFormat()
 command! -buffer Toc call s:Markdown_Toc()
 command! -buffer Toch call s:Markdown_Toc('horizontal')
 command! -buffer Tocv call s:Markdown_Toc('vertical')