Basics of allowing custom filenames for DCP components.

1 files changed, 112 insertions, 0 deletions

diff --git a/src/name_format.cc b/src/name_format.cc
new file mode 100644
index 00000000..1dc1135d
--- /dev/null
+++ b/src/name_format.cc
@@ -0,0 +1,112 @@
+/*
+    Copyright (C) 2016 Carl Hetherington <cth@carlh.net>
+
+    This file is part of libdcp.
+
+    libdcp 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.
+
+    libdcp 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 libdcp.  If not, see <http://www.gnu.org/licenses/>.
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of portions of this program with the
+    OpenSSL library under certain conditions as described in each
+    individual source file, and distribute linked combinations
+    including the two.
+
+    You must obey the GNU General Public License in all respects
+    for all of the code used other than OpenSSL.  If you modify
+    file(s) with this exception, you may extend this exception to your
+    version of the file(s), but you are not obligated to do so.  If you
+    do not wish to do so, delete this exception statement from your
+    version.  If you delete this exception statement from all source
+    files in the program, then also delete it here.
+*/
+
+#include "name_format.h"
+#include <boost/optional.hpp>
+#include <boost/foreach.hpp>
+
+using std::string;
+using std::map;
+using boost::optional;
+using namespace dcp;
+
+static char
+filter (char c)
+{
+	if (c == '/' || c == ':') {
+		c = '-';
+	} else if (c == ' ') {
+		c = '_';
+	}
+
+	return c;
+}
+
+static string
+filter (string c)
+{
+	string o;
+
+	for (size_t i = 0; i < c.length(); ++i) {
+		o += filter (c[i]);
+	}
+
+	return o;
+}
+
+void
+NameFormat::add (string name, char placeholder, string title)
+{
+	_components.push_back (Component (name, placeholder, title));
+}
+
+optional<NameFormat::Component>
+NameFormat::component_by_placeholder (char p) const
+{
+	BOOST_FOREACH (Component const & i, _components) {
+		if (i.placeholder == p) {
+			return i;
+		}
+	}
+
+	return optional<Component> ();
+}
+
+string
+NameFormat::get (Map values) const
+{
+	string result;
+	for (size_t i = 0; i < _specification.length(); ++i) {
+		bool done = false;
+		if (_specification[i] == '%' && (i < _specification.length() - 1)) {
+			optional<Component> c = component_by_placeholder (_specification[i + 1]);
+			if (c) {
+				result += filter (values[c->name]);
+				++i;
+				done = true;
+			}
+		}
+
+		if (!done) {
+			result += filter (_specification[i]);
+		}
+	}
+
+	return result;
+}
+
+bool
+dcp::operator== (NameFormat const & a, NameFormat const & b)
+{
+	return a.specification() == b.specification();
+}