From 3ff8ca36b5bbb57b4039d8f6372d52d2b6ab0eaf Mon Sep 17 00:00:00 2001
From: don bright <hugh.m.bright@gmail.com>
Date: Sat, 12 Jan 2013 16:48:19 -0600
Subject: note about speed on qt < 4.6


diff --git a/src/highlighter.cc b/src/highlighter.cc
index a636827..ab0a071 100644
--- a/src/highlighter.cc
+++ b/src/highlighter.cc
@@ -36,6 +36,11 @@
  even if it's not visible in the window. On a large file (50,000 lines) this
  can take several seconds.
 
+ Also, QT 4.5 and lower do not have rehighlightBlock(), so they will be slow
+ on large files as well, as they re-highlight everything after each compile.
+
+ The vast majority of OpenSCAD files, however, are not 50,000 lines
+
  Test suite:
 
 1. action: open example001, remove first {, hit f5
-- 
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