1 files changed, 37 insertions, 0 deletions

diff --git a/CursorHold-example.vim b/CursorHold-example.vim
new file mode 100644
index 0000000..ae55396
--- /dev/null
+++ b/CursorHold-example.vim
@@ -0,0 +1,37 @@
+au! CursorHold *.[ch] nested call PreviewWord()
+func PreviewWord()
+  if &previewwindow                     " don't do this in the preview window
+    return
+  endif
+  let w = expand("<cword>")             " get the word under cursor
+  if w =~ '\a'                  " if the word contains a letter
+
+    " Delete any existing highlight before showing another tag
+    silent! wincmd P                    " jump to preview window
+    if &previewwindow                   " if we really get there...
+      match none                        " delete existing highlight
+      wincmd p                  " back to old window
+    endif
+
+    " Try displaying a matching tag for the word under the cursor
+    try
+       exe "ptag " . w
+    catch
+      return
+    endtry
+
+    silent! wincmd P                    " jump to preview window
+    if &previewwindow           " if we really get there...
+         if has("folding")
+           silent! .foldopen            " don't want a closed fold
+         endif
+         call search("$", "b")          " to end of previous line
+         let w = substitute(w, '\\', '\\\\', "")
+         call search('\<\V' . w . '\>') " position cursor on match
+         " Add a match highlight to the word at this position
+      hi previewWord term=bold ctermbg=green guibg=green
+         exe 'match previewWord "\%' . line(".") . 'l\%' . col(".") . 'c\k*"'
+      wincmd p                  " back to old window
+    endif
+  endif
+endfun