Filters: fix colorize_regex_range when range is not visible

2011-11-26 18:34:49 +00:00 · 2011-11-26 18:34:49 +00:00 · 9c117a821c
commit 9c117a821c
parent 68f3d24199
1 changed files with 6 additions and 0 deletions
--- a/src/filters.cc
+++ b/src/filters.cc
@ -15,6 +15,12 @@ void colorize_regex_range(DisplayBuffer& display_buffer,
                          const boost::regex& ex,
                          Color fg_color, Color bg_color = Color::Default)
 {
+    assert(range_begin <= range_end);
+
+    if (range_begin >= display_buffer.back().end() or
+        range_end <= display_buffer.front().begin())
+        return;
+
    BufferIterator display_begin = std::max(range_begin,
                                            display_buffer.front().begin());
    BufferIterator display_end   = std::min(range_end,