trim.h

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/*
  Copyright (c) 2023, 2025, Oracle and/or its affiliates.
 
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License, version 2.0,
  as published by the Free Software Foundation.
 
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  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
 
  You should have received a copy of the GNU General Public License
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*/
 
#ifndef ROUTER_SRC_MYSQL_REST_SERVICE_INCLUDE_HELPER_STRING_TRIM_H_
#define ROUTER_SRC_MYSQL_REST_SERVICE_INCLUDE_HELPER_STRING_TRIM_H_
 
#include <string>
 
#include "my_inttypes.h"  // NOLINT(build/include_subdir)
 
namespace helper {
 
inline void left(std::string *to_trim) {
  std::size_t pos = to_trim->find_first_not_of(" ");
 
  to_trim->erase(0, pos);
}
 
inline void right(std::string *to_trim) {
  auto size = to_trim->length();
  for (; size > 0; --size) {
    if ((*to_trim)[size - 1] != ' ') break;
  }
 
  if (size == to_trim->length()) return;
 
  to_trim->erase(size);
}
 
inline void trim(std::string *to_trim) {
  left(to_trim);
  right(to_trim);
}
 
inline std::string make_left(const std::string &to_trim) {
  std::size_t pos = to_trim.find_first_not_of(" ");
 
  if (std::string::npos == pos) return {};
 
  return to_trim.substr(pos);
}
 
inline std::string make_right(const std::string &to_trim) {
  auto size = to_trim.length();
  for (; size > 0; --size) {
    if (to_trim[size - 1] != ' ') break;
  }
 
  if (size == to_trim.length()) return to_trim;
 
  if (0 == size) return {};
 
  return to_trim.substr(0, size);
}
 
inline std::string make_trim(const std::string &to_trim) {
  return make_right(make_left(to_trim));
}
 
}  // namespace helper
 
#endif  // ROUTER_SRC_MYSQL_REST_SERVICE_INCLUDE_HELPER_STRING_TRIM_H_