Case-insensitive sort for image filenames.

[dcpomatic.git] / src / lib / case_insensitive_sorter.cc

diff --git a/src/lib/case_insensitive_sorter.cc b/src/lib/case_insensitive_sorter.cc
new file mode 100644 (file)
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+++ b/src/lib/case_insensitive_sorter.cc
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+/*
+    Copyright (C) 2016 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "case_insensitive_sorter.h"
+#include <boost/filesystem.hpp>
+#include <boost/foreach.hpp>
+#include <iostream>
+
+using std::string;
+
+bool
+CaseInsensitiveSorter::operator() (boost::filesystem::path a, boost::filesystem::path b)
+{
+       string x = a.string ();
+       string y = b.string ();
+       transform (x.begin(), x.end(), x.begin(), ::tolower);
+       transform (y.begin(), y.end(), y.begin(), ::tolower);
+       return x < y;
+}