reintegration of LatCore & folder restructuration

lib/Core/OptParser.hpp

@@ -0,0 +1,103 @@
+/*
+ * OptParser.hpp, part of LatAnalyze
+ *
+ * Copyright (C) 2016 Antonin Portelli
+ *
+ * LatAnalyze 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LatAnalyze 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 LatAnalyze.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LatAnalyze_OptParser_hpp_
+#define LatAnalyze_OptParser_hpp_
+
+#include <LatAnalyze/Global.hpp>
+
+BEGIN_LATAN_NAMESPACE
+
+/******************************************************************************
+ *                       command-line option parser                           *
+ ******************************************************************************/
+class OptParser
+{
+public:
+    enum class OptType {value, trigger};
+private:
+    struct OptPar
+    {
+        std::string shortName, longName, defaultVal, helpMessage;
+        OptType     type;
+        bool        optional;
+    };
+    struct OptRes
+    {
+        std::string value;
+        bool        present;
+    };
+public:
+    // constructor
+    OptParser(void) = default;
+    // destructor
+    virtual ~OptParser(void) = default;
+    // access
+    void addOption(const std::string shortName, const std::string longName,
+                   const OptType type, const bool optional = false,
+                   const std::string helpMessage = "",
+                   const std::string defaultVal = "");
+    bool gotOption(const std::string name) const;
+    template <typename T = std::string>
+    T    optionValue(const std::string name) const;
+    const std::vector<std::string> & getArgs(void) const;
+    // parse
+    bool parse(int argc, char *argv[]);
+    // print option list
+    friend std::ostream & operator<<(std::ostream &out,
+                                     const OptParser &parser);
+private:
+    // find option index
+    int optIndex(const std::string name) const;
+    // option name for messages
+    static std::string optName(const OptPar &opt);
+private:
+    std::vector<OptPar>      opt_;
+    std::vector<OptRes>      result_;
+    std::vector<std::string> arg_;
+    static const std::regex  optRegex_;
+};
+
+std::ostream & operator<<(std::ostream &out, const OptParser &parser);
+
+/******************************************************************************
+ *                     OptParser template implementation                      *
+ ******************************************************************************/
+template <typename T>
+T OptParser::optionValue(const std::string name) const
+{
+    int i = optIndex(name);
+    
+    if (result_.size() != opt_.size())
+    {
+        throw(std::runtime_error("options not parsed"));
+    }
+    if (i >= 0)
+    {
+        return strTo<T>(result_[i].value);
+    }
+    else
+    {
+        throw(std::out_of_range("no option with name '" + name + "'"));
+    }
+}
+
+END_LATAN_NAMESPACE
+
+#endif // LatAnalyze_OptParser_hpp_