From cd6fd2ab18bdc1364ede3a33773df4e3ad719efa Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Thu, 19 Sep 2013 21:39:01 +0100
Subject: Various KDM and encryption fixes.

---
 src/lib/util.cc | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/lib/util.cc')

diff --git a/src/lib/util.cc b/src/lib/util.cc
index b8bc1fc9e..4e4493ac7 100644
--- a/src/lib/util.cc
+++ b/src/lib/util.cc
@@ -800,3 +800,18 @@ valid_image_file (boost::filesystem::path f)
 	return (ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" || ext == ".png" || ext == ".bmp" || ext == ".tga");
 }
 
+string
+tidy_for_filename (string f)
+{
+	string t;
+	for (size_t i = 0; i < f.length(); ++i) {
+		if (isalpha (f[i]) || f[i] == '_' || f[i] == '-') {
+			t += f[i];
+		} else {
+			t += '_';
+		}
+	}
+
+	return t;
+}
+	
-- 
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