1 files changed, 85 insertions, 0 deletions
diff --git a/old/botan/checks/getopt.cpp b/old/botan/checks/getopt.cpp
new file mode 100644
index 0000000..c0145ca
--- /dev/null
+++ b/old/botan/checks/getopt.cpp
@@ -0,0 +1,85 @@
+
+#include "getopt.h"
+
+#include <botan/parsing.h>
+#include <botan/exceptn.h>
+
+OptionParser::OptionParser(const std::string& opt_string)
+   {
+   std::vector<std::string> opts = Botan::split_on(opt_string, '|');
+
+   for(size_t j = 0; j != opts.size(); j++)
+      flags.push_back(OptionFlag(opts[j]));
+   }
+
+OptionParser::OptionFlag
+OptionParser::find_option(const std::string& name) const
+   {
+   for(size_t j = 0; j != flags.size(); j++)
+      if(flags[j].name() == name)
+         return flags[j];
+   throw Botan::Exception("Unknown option " + name);
+   }
+
+bool OptionParser::is_set(const std::string& key) const
+   {
+   return (options.find(key) != options.end());
+   }
+
+std::string OptionParser::value(const std::string& key) const
+   {
+   std::map<std::string, std::string>::const_iterator i = options.find(key);
+   if(i == options.end())
+      throw Botan::Exception("Option " + key + " not found");
+   return i->second;
+   }
+
+std::string OptionParser::value_if_set(const std::string& key) const
+   {
+   return is_set(key) ? value(key) : "";
+   }
+
+void OptionParser::parse(char* argv[])
+   {
+   std::vector<std::string> args;
+   for(int j = 1; argv[j]; j++)
+      args.push_back(argv[j]);
+
+   for(size_t j = 0; j != args.size(); j++)
+      {
+      std::string arg = args[j];
+
+      if(arg.size() > 2 && arg[0] == '-' && arg[1] == '-')
+         {
+         const std::string opt_name = arg.substr(0, arg.find('='));
+
+         arg = arg.substr(2);
+
+         std::string::size_type mark = arg.find('=');
+
+         OptionFlag opt = find_option(arg.substr(0, mark));
+
+         if(opt.takes_arg())
+            {
+            if(mark == std::string::npos)
+               throw Botan::Exception("Option " + opt_name +
+                                      " requires an argument");
+
+            std::string name = arg.substr(0, mark);
+            std::string value = arg.substr(mark+1);
+
+            options[name] = value;
+            }
+         else
+            {
+            if(mark != std::string::npos)
+               throw Botan::Exception("Option " + opt_name +
+                                      " does not take an argument");
+
+            options[arg] = "";
+            }
+         }
+      else
+         leftover.push_back(arg);
+      }
+   }