Add locale_convert. Reimplement raw_convert without stringstream.

1 files changed, 156 insertions, 0 deletions

diff --git a/src/raw_convert.cc b/src/raw_convert.cc
new file mode 100644
index 00000000..cb7807a3
--- /dev/null
+++ b/src/raw_convert.cc
@@ -0,0 +1,156 @@
+/*
+    Copyright (C) 2014 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 "raw_convert.h"
+#include "locale_convert.h"
+#include <boost/algorithm/string.hpp>
+
+using std::string;
+
+static
+string
+make_raw (string v)
+{
+	struct lconv* lc = localeconv ();
+	boost::algorithm::replace_all (v, lc->decimal_point, ".");
+	boost::algorithm::replace_all (v, lc->thousands_sep, "");
+	return v;
+}
+
+static
+string
+make_local (string v)
+{
+	struct lconv* lc = localeconv ();
+	boost::algorithm::replace_all (v, ".", lc->decimal_point);
+	/* We hope it's ok not to add in thousands separators here */
+	return v;
+}
+
+template <>
+string
+dcp::raw_convert (int v, int precision, bool fixed)
+{
+	return make_raw (locale_convert<string> (v, precision, fixed));
+}
+
+template <>
+string
+dcp::raw_convert (int64_t v, int precision, bool fixed)
+{
+	return make_raw (locale_convert<string> (v, precision, fixed));
+}
+
+template <>
+string
+dcp::raw_convert (uint64_t v, int precision, bool fixed)
+{
+	return make_raw (locale_convert<string> (v, precision, fixed));
+}
+
+template <>
+string
+dcp::raw_convert (float v, int precision, bool fixed)
+{
+	return make_raw (locale_convert<string> (v, precision, fixed));
+}
+
+template <>
+string
+dcp::raw_convert (double v, int precision, bool fixed)
+{
+	return make_raw (locale_convert<string> (v, precision, fixed));
+}
+
+template <>
+string
+dcp::raw_convert (char const * v, int, bool)
+{
+	return v;
+}
+
+template <>
+string
+dcp::raw_convert (char* v, int, bool)
+{
+	return v;
+}
+
+template <>
+string
+dcp::raw_convert (string v, int, bool)
+{
+	return v;
+}
+
+template <>
+int
+dcp::raw_convert (string v, int precision, bool fixed)
+{
+	return locale_convert<int> (make_local (v), precision, fixed);
+}
+
+template <>
+int
+dcp::raw_convert (char const * v, int precision, bool fixed)
+{
+	return locale_convert<int> (make_local (v), precision, fixed);
+}
+
+template <>
+float
+dcp::raw_convert (string v, int precision, bool fixed)
+{
+	return locale_convert<float> (make_local (v), precision, fixed);
+}
+
+template <>
+float
+dcp::raw_convert (char const * v, int precision, bool fixed)
+{
+	return locale_convert<float> (make_local (v), precision, fixed);
+}
+
+template <>
+double
+dcp::raw_convert (string v, int precision, bool fixed)
+{
+	return locale_convert<double> (make_local (v), precision, fixed);
+}
+
+template <>
+double
+dcp::raw_convert (char const * v, int precision, bool fixed)
+{
+	return locale_convert<double> (make_local (v), precision, fixed);
+}