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diff --git a/src/log_gutter_source.hh b/src/log_gutter_source.hh
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+/**
+ * Copyright (c) 2018, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef lnav_log_gutter_source_hh
+#define lnav_log_gutter_source_hh
+
+#include "command_executor.hh"
+#include "logfile_sub_source.hh"
+
+class log_gutter_source : public list_gutter_source {
+public:
+    void listview_gutter_value_for_range(const listview_curses& lv,
+                                         int start,
+                                         int end,
+                                         chtype& ch,
+                                         role_t& role_out,
+                                         role_t& bar_role_out)
+    {
+        textview_curses* tc = (textview_curses*) &lv;
+        vis_bookmarks& bm = tc->get_bookmarks();
+        bool search_hit = false;
+
+        start -= 1;
+
+        auto next = bm[&textview_curses::BM_SEARCH].next(vis_line_t(start));
+        search_hit = (next && next.value() <= end);
+
+        next = bm[&textview_curses::BM_USER].next(vis_line_t(start));
+        if (!next) {
+            next = bm[&textview_curses::BM_META].next(vis_line_t(start));
+        }
+        if (next && next.value() <= end) {
+            ch = search_hit ? ACS_PLUS : ACS_LTEE;
+        } else {
+            ch = search_hit ? ACS_RTEE : ACS_VLINE;
+        }
+        next = bm[&logfile_sub_source::BM_ERRORS].next(vis_line_t(start));
+        if (next && next.value() <= end) {
+            role_out = role_t::VCR_ERROR;
+            bar_role_out = role_t::VCR_SCROLLBAR_ERROR;
+        } else {
+            next = bm[&logfile_sub_source::BM_WARNINGS].next(vis_line_t(start));
+            if (next && next.value() <= end) {
+                role_out = role_t::VCR_WARNING;
+                bar_role_out = role_t::VCR_SCROLLBAR_WARNING;
+            }
+        }
+    }
+};
+
+#endif