Moved C++ tools out

archive/dawntools/util/DawnTool.cpp

@@ -0,0 +1,81 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "DawnTool.hpp"
+#include "util/memory.hpp"
+
+#if !defined(DAWN_TOOL_INSTANCE)
+  #error Dawn Tool Instance, e.g. LanguageTool has not been defined
+#endif
+
+#if !defined(DAWN_TOOL_HEADER)
+  #error Dawn Tool Include, e.g. LanguageTool.hpp has not been defined
+#endif
+
+#include DAWN_TOOL_HEADER
+
+using namespace Dawn;
+
+std::vector<std::string> DawnTool::getRequiredFlags() {
+  return std::vector<std::string>();
+}
+
+std::map<std::string, std::string> DawnTool::getOptionalFlags() {
+  return std::map<std::string, std::string>();
+}
+
+int32_t DawnTool::exec(const int32_t argc, const char *argv[]) {  
+  // Set up flags
+  flags = this->getOptionalFlags();
+
+  // Parse args
+  for(int32_t i = 0; i < argc; i++) {
+    std::string a(argv[i]);
+    this->args.push_back(a);
+
+    // First arg is the path, we ignore it.
+    if(i == 0) continue;
+    
+    // Is this a flag-like arg, as in has  "--[name]=[value]"
+    if(a.size() < 5) continue;
+    if(a[0] != '-' || a[1] != '-') continue;
+
+    // Remove --
+    auto flag = a.erase(0, 2);
+
+    // Ensure = is present
+    auto equalPos = flag.find('=');
+    if(equalPos == std::string::npos)  continue;
+    
+    // Get prefix and val and store
+    auto prefix = flag.substr(0, equalPos);
+    auto val = flag.substr(equalPos + 1);
+    if(val.size() == 0) continue;
+    flags[prefix] = val;
+  }
+
+  // Now validate flags
+  auto required = this->getRequiredFlags();
+  auto itReq = required.begin();
+  while(itReq != required.end()) {
+    auto match = flags.find(*itReq);
+    if(match == flags.end()) {
+      std::cout << "Missing required flag \"" + *itReq + "\"!" << std::endl;
+      return 1;
+    }
+    ++itReq;
+  }
+
+  return this->start();
+}
+
+int main(const int32_t argc, const char *argv[]) {
+  memoryInit();
+  DAWN_TOOL_INSTANCE *self = new DAWN_TOOL_INSTANCE();
+  int32_t ret = self->exec(argc, argv);
+  delete self;
+  if(ret == 0) memoryDispose();
+  return ret;
+}