From: Ciro Santilli <ciro.santilli@gmail.com>
Date: Tue, 10 Jun 2014 15:44:53 +0000 (+0200)
Subject: Add TableFormat command.
X-Git-Url: https://git.madduck.net/etc/vim.git/commitdiff_plain/91a2e5f695eac5755a0d8d0c8c1c9000e9fa96a7

Add TableFormat command.
---

diff --git a/README.md b/README.md
index 20a74e3..18044db 100644
--- a/README.md
+++ b/README.md
@@ -6,9 +6,12 @@ Syntax highlighting, matching rules and mappings for [the original Markdown](htt
 
 If you use [Vundle](https://github.com/gmarik/vundle), add the following line to your `~/.vimrc`:
 
+    Plugin 'godlygeek/tabular'
     Plugin 'plasticboy/vim-markdown'
 
-And then run inside Vim:
+The `tabular` plugin come *before* `vim-markdown`.
+
+Then run inside Vim:
 
     :so ~/.vimrc
     :PluginInstall
@@ -69,13 +72,17 @@ The following work on normal and visual modes:
 
 ## Commands
 
-- `:Toc`: create a quickfix vertical window navigable table of contents with the headers.
+- `:HeaderDecrease`:
 
-    Hit `<Enter>` on a line to jump to the corresponding line of the markdown file.
+    Decrease level of all headers in buffer: `h2` to `h1`, `h3` to `h2`, etc.
 
-- `:Toch`: Same as `:Toc` but in an horizontal window.
-- `:Toct`: Same as `:Toc` but in a new tab.
-- `:Tocv`: Same as `:Toc` for symmetry with `:Toch` and `Tocv`.
+    If range is given, only operate in the range.
+
+    If an `h1` would be decreased, abort.
+
+    For simplicity of implementation, Setex headers are converted to Atx.
+
+- `:HeaderIncrease`: Analogous to `:HeaderDecrease`, but increase levels instead.
 
 - `:SetexToAtx`:
 
@@ -83,17 +90,22 @@ The following work on normal and visual modes:
 
     If a range is given, e.g. hit `:` from visual mode, only operate on the range.
 
-- `:HeaderDecrease`:
+- `:TableFormat`: Format the table under the cursor [like this](http://www.cirosantilli.com/markdown-styleguide/#tables).
 
-    Decrease level of all headers in buffer: `h2` to `h1`, `h3` to `h2`, etc.
+    Requires [Tabular](https://github.com/godlygeek/tabular).
 
-    If range is given, only operate in the range.
+    The input table *must* already have a separator line as the second line of the table.
+    That line only needs to contain the correct pipes `|`, nothing else is required.
 
-    If an `h1` would be decreased, abort.
+- `:Toc`: create a quickfix vertical window navigable table of contents with the headers.
 
-    For simplicity of implementation, Setex headers are converted to Atx.
+    Hit `<Enter>` on a line to jump to the corresponding line of the markdown file.
 
-- `:HeaderIncrease`: Analogous to `:HeaderDecrease`, but increase levels instead.
+- `:Toch`: Same as `:Toc` but in an horizontal window.
+
+- `:Toct`: Same as `:Toc` but in a new tab.
+
+- `:Tocv`: Same as `:Toc` for symmetry with `:Toch` and `Tocv`.
 
 ## Credits
 
diff --git a/ftplugin/mkd.vim b/ftplugin/mkd.vim
index 2129203..36d0b08 100644
--- a/ftplugin/mkd.vim
+++ b/ftplugin/mkd.vim
@@ -396,6 +396,22 @@ function! s:HeaderDecrease(line1, line2, ...)
     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')
 call <sid>MapNormVis('<Plug>(Markdown_MoveToNextSiblingHeader)', '<sid>Markdown_MoveToNextSiblingHeader')
@@ -421,10 +437,11 @@ 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')
 command! -buffer Toct call s:Markdown_Toc('tab')
-command! -buffer -range=% SetexToAtx call s:SetexToAtx(<line1>, <line2>)
-command! -buffer -range=% HeaderDecrease call s:HeaderDecrease(<line1>, <line2>)
-command! -buffer -range=% HeaderIncrease call s:HeaderDecrease(<line1>, <line2>, 1)
diff --git a/test/table_format.md b/test/table_format.md
new file mode 100644
index 0000000..3b617f0
--- /dev/null
+++ b/test/table_format.md
@@ -0,0 +1,17 @@
+| normal |no space|  2 spaces  ||
+| - |-|  --- ||
+| normal |no space|  2 spaces  ||
+
+The table above is the first thing in the file.
+
+The following table is already well formatted. It should not be modified:
+
+| a | b |
+|---|---|
+| c | d |
+
+The following table is the last thing in the file:
+
+| normal |no space|  2 spaces  ||
+| - |-|  --- ||
+| normal |no space|  2 spaces  ||