#include "utils.h"

#include <algorithm>

bool replace(std::string &str, const std::string &from, const std::string &to) {
  size_t start_pos = str.find(from);
  if (start_pos == std::string::npos)
    return false;
  str.replace(start_pos, from.length(), to);
  return true;
}

bool replace(std::string &str, const char *from, const char *to) {
  size_t start_pos = str.find(from);
  if (start_pos == std::string::npos)
    return false;
  str.replace(start_pos, strlen(from), to);
  return true;
}

bool file_exists(const std::string &name) {
  std::ifstream f(name.c_str());
  return f.good();
}

bool file_exists(const char *name) {
  std::ifstream f(name);
  return f.good();
}

void string_toupper(std::string &str) {
  std::transform(str.begin(), str.end(), str.begin(), ::toupper);
}