osmo-trx.cpp: move comma_delimited_to_vector() to Utils.cpp
Make the "opt" argument const. This function will also be used by
LMSDevice.cpp in a follow-up commit.
Related: OS#3654
Change-Id: If3f0f682ca453c2b0a06175ec9626567932cfce6
diff --git a/CommonLibs/Utils.cpp b/CommonLibs/Utils.cpp
new file mode 100644
index 0000000..6cd4f84
--- /dev/null
+++ b/CommonLibs/Utils.cpp
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2018 sysmocom - s.f.m.c. GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <vector>
+#include <string>
+#include <sstream>
+
+std::vector<std::string> comma_delimited_to_vector(const char* opt)
+{
+ std::string str = std::string(opt);
+ std::vector<std::string> result;
+ std::stringstream ss(str);
+
+ while( ss.good() )
+ {
+ std::string substr;
+ getline(ss, substr, ',');
+ result.push_back(substr);
+ }
+ return result;
+}