Toggle word wrap mode with <leader>w.HEADmaster

1 files changed, 34 insertions, 0 deletions

diff --git a/vimrc b/vimrc
index 9427356..cc42079 100644
--- a/vimrc
+++ b/vimrc
@@ -34,3 +34,37 @@ noremap <down> gj
 
 " toggle nerdtree with ctrl-o
 map <C-o> :NERDTreeToggle<CR>
+
+" Toggle word-wrap mode
+" This will also fix movement keys so they move by visual
+" lines instead of physical lines in word-wrap mode.
+" See https://vim.fandom.com/wiki/Move_cursor_by_display_lines_when_wrapping
+noremap <silent> <leader>w :call ToggleWrap()<CR>
+function ToggleWrap()
+  if &wrap
+    echo "Wrap OFF"
+    setlocal nowrap
+    set virtualedit=all
+    silent! nunmap <buffer> <Up>
+    silent! nunmap <buffer> <Down>
+    silent! nunmap <buffer> <Home>
+    silent! nunmap <buffer> <End>
+    silent! iunmap <buffer> <Up>
+    silent! iunmap <buffer> <Down>
+    silent! iunmap <buffer> <Home>
+    silent! iunmap <buffer> <End>
+  else
+    echo "Wrap ON"
+    setlocal wrap linebreak nolist
+    set virtualedit=
+    setlocal display+=lastline
+    noremap  <buffer> <silent> <Up>   gk
+    noremap  <buffer> <silent> <Down> gj
+    noremap  <buffer> <silent> <Home> g<Home>
+    noremap  <buffer> <silent> <End>  g<End>
+    inoremap <buffer> <silent> <Up>   <C-o>gk
+    inoremap <buffer> <silent> <Down> <C-o>gj
+    inoremap <buffer> <silent> <Home> <C-o>g<Home>
+    inoremap <buffer> <silent> <End>  <C-o>g<End>
+  endif
+endfunction