add semver lib

lib/semver/semver200.h

@@ -0,0 +1,53 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2015 Marko Zivanovic
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#pragma once
+
+#include "version.h"
+
+namespace version {
+
+/// Parse string into Version_data structure according to semantic versioning 2.0.0 rules.
+struct Semver200_parser {
+    Version_data parse(const std::string &) const;
+};
+
+/// Compare Version_data to another using semantic versioning 2.0.0 rules.
+struct Semver200_comparator {
+    int compare(const Version_data &, const Version_data &) const;
+};
+
+/// Concrete version class that binds all semver 2.0.0 functionality together.
+class Semver200_version : public Basic_version<Semver200_parser, Semver200_comparator> {
+  public:
+    Semver200_version()
+        : Basic_version{Semver200_parser(), Semver200_comparator()} {
+    }
+
+    Semver200_version(const std::string & v)
+        : Basic_version{v, Semver200_parser(), Semver200_comparator()} {
+    }
+};
+
+} // namespace version