simulation framework refactoring

sim/simX/args.cpp

@@ -0,0 +1,47 @@
+#include <iostream>
+#include <string>
+#include "args.h"
+
+using namespace vortex;
+using std::string;
+
+std::string CommandLineArg::helpString_;
+std::unordered_map<string, CommandLineArg *> CommandLineArg::longArgs_;
+std::unordered_map<string, CommandLineArg *> CommandLineArg::shortArgs_;
+
+CommandLineArg::CommandLineArg(string s, string l, const char *helpText) {
+  helpString_ += helpText;
+  longArgs_[l] = this;
+  shortArgs_[s] = this;
+}
+
+CommandLineArg::CommandLineArg(string l, const char *helpText) {
+  helpString_ += helpText;
+  longArgs_[l] = this;
+}
+
+void CommandLineArg::readArgs(int argc, char **argv) {
+  for (int i = 0; i < argc; i++) {
+    std::unordered_map<string, CommandLineArg *>::iterator 
+      s = shortArgs_.find(std::string(argv[i])), 
+      l = longArgs_.find(std::string(argv[i]));
+
+    if (s != shortArgs_.end()) {
+      i += s->second->read(argc - i, &argv[i]);
+    } else if (l != longArgs_.end()) {
+      i += l->second->read(argc - i, &argv[i]);
+    } else {
+      throw BadArg(string(argv[i]));
+    }
+  }
+}
+
+void CommandLineArg::clearArgs() {
+  shortArgs_.clear();
+  longArgs_.clear();
+  helpString_ = "";
+}
+
+void CommandLineArg::showHelp(std::ostream &os) {
+  os << helpString_;
+}