From 44dcf9e53ee0e2f3700ecb326716c2b795593629 Mon Sep 17 00:00:00 2001
From: Max Christian Pohle
Date: Fri, 9 Jun 2017 20:46:49 +0200
Subject: Improved performance of word-highlighting

- completely rewrote it
---
 vimrc-full | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/vimrc-full b/vimrc-full
index 1344f7e..e605d38 100644
--- a/vimrc-full
+++ b/vimrc-full
@@ -1,4 +1,4 @@
-" vim: tabstop=2 softtabstop=2 shiftwidth=2 textwidth=160
+" vim: tabstop=2 softtabstop=2 shiftwidth=2 textwidth=160 iskeyword+=\:
 
 set encoding=utf-8            | " set up vim's cosole encoding (not file encoding, for which there is fileencoding=)
 set t_Co=256                  | " required on some ssh sessions
@@ -68,7 +68,7 @@ set winminwidth=30            | " (and all other windows, so TODO: watch out)
 set tags+=../tags
 " set textwidth=100             | " line length (80 used to be default, but...)
 " set colorcolumn=              | " not used, because we have a :match directive for textwidth
-set updatetime=10             | " updates the screen more often
+set updatetime=80             | " updates the screen more often
 set viminfo+=%                | " restore buffer list
 set writedelay=0
 set wildmenu                  | " use a menu in the command line
@@ -658,17 +658,15 @@ let g:netrw_preview       = 0       | "
 let g:netrw_winsize       = 20      | " window size in percent
 
 
+highlight WordBold cterm=bold gui=bold
 function! HighlightWordUnderCursor()
-    highlight WordBold cterm=bold gui=bold
-
+    if(exists('w:m1') && w:m1 > 0)
+      call matchdelete(w:m1)
+      let w:m1 = 0
+    endif
     let l:currentword = escape(expand('<cword>'), '.')
-    exec 'syn clear' 'WordBold'
     if(strlen(l:currentword) > 0)
-      " exec '2match' 'WordBold' '/'.l:currentword.'/'
-      " exec 'syn match' 'WordBold' '/'.l:currentword.'/'
-      if getline(".")[col(".")-1] !~# '[[:punct:][:blank:]]' 
-          exec '2match' 'Bold' '/\V\<'.l:currentword.'\>/' 
-      endif
+      let w:m1=matchadd('WordBold', l:currentword, -1, 100)
     endif
 endfunction
 autocmd! CursorHold,CursorHoldI * call HighlightWordUnderCursor()
-- 
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