#include <stdlib.h>

struct Argv {

 public:

  Argv() : Argv({"node", "-p", "process.version"}) {}

  Argv(const std::initializer_list<const char*> &args) {

    nr_args_ = args.size();

    int total_len = 0;

    for (auto it = args.begin(); it != args.end(); ++it) {

      total_len += strlen(*it) + 1;

    }

    argv_ = static_cast<char**>(malloc(nr_args_ * sizeof(char*)));

    argv_[0] = static_cast<char*>(malloc(total_len));

    int i = 0;

    int offset = 0;

    for (auto it = args.begin(); it != args.end(); ++it, ++i) {

      int len = strlen(*it) + 1;

      snprintf(argv_[0] + offset, len, "%s", *it);

      // Skip argv_[0] as it points the correct location already

      if (i > 0) {

        argv_[i] = argv_[0] + offset;

      }

      offset += len;

    }

  }

  ~Argv() {

    free(argv_[0]);

    free(argv_);

  }

  int nr_args() const {

    return nr_args_;

  }

  char** operator*() const {

    return argv_;

  }

 private:

  char** argv_;

  int nr_args_;

};

// checks for unescaped double quotes which would break the script

bool hasUnescapedDoubleQuotes(std::string s) {

  for (int i=0; i<s.length(); i++) {

    if(s[i]=='"') {

      // Found a double quote. Check if it is escaped

      if (i == 0) {

        return true;

      }

      if(s.at(i-1) != '\\') {

          return true;

      }

    }

  }

  return false;

}

// checks for unescaped single quotes which would break the script

bool hasUnescapedSingleQuotes(std::string s) {

  for (int i=0; i<s.length(); i++) {

    if(s[i]=='\'') {

        // Found a double quote. Check if it is escaped

        if (i == 0) {

                return true;

        }

      if(s.at(i-1) != '\\') {

          return true;

      }

    }

  }

  return false;

}