new classes; yajl library

[chaz/yoink] / src / settings.cc

diff --git a/src/settings.cc b/src/settings.cc
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+++ b/src/settings.cc
@@ -0,0 +1,100 @@
+
+/*******************************************************************************
+
+ Copyright (c) 2009, Charles McGarvey
+ All rights reserved.
+ 
+ Redistribution   and   use  in  source  and  binary  forms,  with  or  without
+ modification, are permitted provided that the following conditions are met:
+ 
+   * Redistributions  of  source  code  must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
+   * Redistributions  in binary form must reproduce the above copyright notice,
+     this  list of conditions and the following disclaimer in the documentation
+     and/or other materials provided with the distribution.
+ 
+ THIS  SOFTWARE  IS  PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND  ANY  EXPRESS  OR  IMPLIED  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED.  IN  NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES  (INCLUDING,  BUT  NOT  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES;  LOSS  OF  USE,  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*******************************************************************************/
+
+#include <sstream>
+#include <cstring>
+
+#include "settings.hh"
+
+
+namespace dc {
+
+
+settings::settings(int argc, char* argv[])
+{
+       parseArgs(argc, argv);
+}
+
+
+void settings::parseArgs(int argc, char* argv[])
+{
+       for (int i = 1; i < argc; i++)
+       {
+               char* where = strchr(argv[i], (int)'=');
+
+               if (where)
+               {
+                       std::string key(argv[i], (size_t)(where - argv[i]));
+                       std::string stringValue(where + 1);
+
+                       std::stringstream stream;
+                       stream << stringValue << std::endl;
+
+                       deserializer in(stream);
+
+                       try
+                       {
+                               serializable_ptr value(in.deserialize());
+                               map[key] = value;
+                       }
+                       catch (std::exception e)
+                       {
+                               map[key] = serializable_ptr(new wrapped_string(stringValue));
+                       }
+               }
+       }
+}
+
+void settings::loadFromFile(std::string filePath)
+{
+       deserializer in(filePath, true);
+
+       try
+       {
+               serializable_ptr obj = in.deserialize();
+               std::map<std::string,serializable_ptr> dict;
+               if (obj && obj->get(dict))
+               {
+                       map.insert(dict.begin(), dict.end());
+               }
+               else
+               {
+                       std::cerr << "The settings file " << filePath <<
+                               " does not contain any valid settings." << std::endl;
+               }
+       }
+       catch (deserializer::parser_error e)
+       {
+               std::cerr << "Cannot load settings from " << filePath <<
+                       " because an exception was thrown: " << e.what() << std::endl;
+       }
+}
+
+
+} // namepsace dc
+