Adding ue1

1 files changed, 84 insertions, 0 deletions

diff --git a/ue1/imgsynth/imgsynth.cpp b/ue1/imgsynth/imgsynth.cpp
new file mode 100644
index 0000000..a172c76
--- /dev/null
+++ b/ue1/imgsynth/imgsynth.cpp
@@ -0,0 +1,84 @@
+/**
+ * @module imgsynth
+ * @author Manuel Mausz, 0728348
+ * @brief  imgsynth reads a scriptfile given as commandline option
+ *         and executes all known function inside.
+ *         On error (e.g. unknown function) the program will terminate
+ * @date   17.04.2009
+ * @par Exercise
+ *      1
+ */
+
+#include <iostream>
+#include <boost/program_options.hpp>
+#include "cscriptparser.h"
+
+using namespace std;
+namespace po = boost::program_options;
+
+/**
+ * @func   main
+ * @brief  program entry point
+ * @param  argc  standard parameter of main
+ * @param  argv  standard parameter of main
+ * @return 0 on success, not 0 otherwise
+ * @globalvars none
+ * @exception  none
+ * @conditions none
+ *
+ * setup commandline options, parse them and pass scriptfile to scriptparser
+ * instance. On error print error message to stderr.
+ * Unknown commandline options will print a usage message.
+ */
+int main(int argc, char* argv[])
+{
+  string me(argv[0]);
+
+  /* define commandline options */
+  po::options_description desc("Allowed options");
+  desc.add_options()
+    ("help,h", "this help message")
+    ("input,i", po::value<string>(), "input scriptfile");
+
+  /* parse commandline options */
+  po::variables_map vm;
+  try
+  {
+    po::store(po::parse_command_line(argc, argv, desc), vm);
+    po::notify(vm);
+  }
+  catch(po::error& ex)
+  {
+    cerr << "Error: " << ex.what() << endl;
+  }
+
+  /* print usage upon request or missing params */
+  if (vm.count("help") || !vm.count("input"))
+  {
+    cout << "Usage: " << me << " -i <scriptfile>" << endl;
+    cout << desc << endl;
+    return 0;
+  }
+
+  CScriptparser parser(vm["input"].as<string>());
+  try
+  {
+    parser.parse();
+  }
+  catch(CScriptparser::ParserError& ex)
+  {
+    cerr << me << ": Error while processing scriptfile: " << ex.what() << endl;
+    if (!ex.getLine().empty())
+      cerr << "Scriptline: '" << ex.getLine() << "'" << endl;
+    return 1;
+  }
+  catch(exception& ex)
+  {
+    cerr << me << ": Unexpected exception: " << ex.what() << endl;
+    return 1;
+  }
+
+  return 0;
+}
+
+/* vim: set et sw=2 ts=2: */