> For the complete documentation index, see [llms.txt](https://people-utility-token.gitbook.io/peoples-utility-token/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://people-utility-token.gitbook.io/peoples-utility-token/token-contract.md).

# Token Contract

// Dependency file: @openzeppelin/contracts/token/ERC20/IERC20.sol

// SPDX-License-Identifier: MIT

// pragma solidity ^0.8.0;

/\*\*

* @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /*\*

  * @dev Returns the amount of tokens in existence. \*/ function totalSupply() external view returns (uint256);

  /\*\*

  * @dev Returns the amount of tokens owned by `account`. \*/ function balanceOf(address account) external view returns (uint256);

  /\*\*

  * @dev Moves `amount` tokens from the caller's account to `recipient`.
  *
  * Returns a boolean value indicating whether the operation succeeded.
  *
  * Emits a {Transfer} event. \*/ function transfer(address recipient, uint256 amount) external returns (bool);

  /\*\*

  * @dev Returns the remaining number of tokens that `spender` will be
  * allowed to spend on behalf of `owner` through {transferFrom}. This is
  * zero by default.
  *
  * This value changes when {approve} or {transferFrom} are called. \*/ function allowance(address owner, address spender) external view returns (uint256);

  /\*\*

  * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
  *
  * Returns a boolean value indicating whether the operation succeeded.
  *
  * IMPORTANT: Beware that changing an allowance with this method brings the risk
  * that someone may use both the old and the new allowance by unfortunate
  * transaction ordering. One possible solution to mitigate this race
  * condition is to first reduce the spender's allowance to 0 and set the
  * desired value afterwards:
  * <https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729>
  *
  * Emits an {Approval} event. \*/ function approve(address spender, uint256 amount) external returns (bool);

  /\*\*

  * @dev Moves `amount` tokens from `sender` to `recipient` using the
  * allowance mechanism. `amount` is then deducted from the caller's
  * allowance.
  *
  * Returns a boolean value indicating whether the operation succeeded.
  *
  * Emits a {Transfer} event. \*/ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool);

  /\*\*

  * @dev Emitted when `value` tokens are moved from one account (`from`) to
  * another (`to`).
  *
  * Note that `value` may be zero. \*/ event Transfer(address indexed from, address indexed to, uint256 value);

  /\*\*

  * @dev Emitted when the allowance of a `spender` for an `owner` is set by
  * a call to {approve}. `value` is the new allowance. \*/ event Approval(address indexed owner, address indexed spender, uint256 value); }

// Dependency file: @openzeppelin/contracts/utils/Context.sol

// pragma solidity ^0.8.0;

/\*\*

* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts. \*/ abstract contract Context { function \_msgSender() internal view virtual returns (address) { return msg.sender; }

  function \_msgData() internal view virtual returns (bytes calldata) { return msg.data; } }

// Dependency file: @openzeppelin/contracts/access/Ownable.sol

// pragma solidity ^0.8.0;

// import "@openzeppelin/contracts/utils/Context.sol";

/\*\*

* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner. \*/ abstract contract Ownable is Context { address private \_owner;

  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

  /\*\*

  * @dev Initializes the contract setting the deployer as the initial owner. \*/ constructor() { \_setOwner(\_msgSender()); }

  /\*\*

  * @dev Returns the address of the current owner. \*/ function owner() public view virtual returns (address) { return \_owner; }

  /\*\*

  * @dev Throws if called by any account other than the owner. \*/ modifier onlyOwner() { require(owner() == \_msgSender(), "Ownable: caller is not the owner"); \_; }

  /\*\*

  * @dev Leaves the contract without owner. It will not be possible to call
  * `onlyOwner` functions anymore. Can only be called by the current owner.
  *
  * NOTE: Renouncing ownership will leave the contract without an owner,
  * thereby removing any functionality that is only available to the owner. \*/ function renounceOwnership() public virtual onlyOwner { \_setOwner(address(0)); }

  /\*\*

  * @dev Transfers ownership of the contract to a new account (`newOwner`).
  * Can only be called by the current owner. \*/ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); \_setOwner(newOwner); }

  function \_setOwner(address newOwner) private { address oldOwner = \_owner; \_owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }

// Dependency file: @openzeppelin/contracts/utils/math/SafeMath.sol

// pragma solidity ^0.8.0;

// CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks.

/\*\*

* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler
* now has built in overflow checking. */ library SafeMath { /*\*

  * @dev Returns the addition of two unsigned integers, with an overflow flag.
  *
  * *Available since v3.4.* \*/ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } }

  /\*\*

  * @dev Returns the substraction of two unsigned integers, with an overflow flag.
  *
  * *Available since v3.4.* \*/ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } }

  /\*\*

  * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
  *
  * *Available since v3.4.* \*/ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: <https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522> if (a == 0) return (true, 0); uint256 c = a \* b; if (c / a != b) return (false, 0); return (true, c); } }

  /\*\*

  * @dev Returns the division of two unsigned integers, with a division by zero flag.
  *
  * *Available since v3.4.* \*/ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } }

  /\*\*

  * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
  *
  * *Available since v3.4.* \*/ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } }

  /\*\*

  * @dev Returns the addition of two unsigned integers, reverting on
  * overflow.
  *
  * Counterpart to Solidity's `+` operator.
  *
  * Requirements:
  *
  * * Addition cannot overflow. \*/ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; }

  /\*\*

  * @dev Returns the subtraction of two unsigned integers, reverting on
  * overflow (when the result is negative).
  *
  * Counterpart to Solidity's `-` operator.
  *
  * Requirements:
  *
  * * Subtraction cannot overflow. \*/ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; }

  /\*\*

  * @dev Returns the multiplication of two unsigned integers, reverting on
  * overflow.
  *
  * Counterpart to Solidity's `*` operator.
  *
  * Requirements:
  *
  * * Multiplication cannot overflow. \*/ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a \* b; }

  /\*\*

  * @dev Returns the integer division of two unsigned integers, reverting on
  * division by zero. The result is rounded towards zero.
  *
  * Counterpart to Solidity's `/` operator.
  *
  * Requirements:
  *
  * * The divisor cannot be zero. \*/ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; }

  /\*\*

  * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
  * reverting when dividing by zero.
  *
  * Counterpart to Solidity's `%` operator. This function uses a `revert`
  * opcode (which leaves remaining gas untouched) while Solidity uses an
  * invalid opcode to revert (consuming all remaining gas).
  *
  * Requirements:
  *
  * * The divisor cannot be zero. \*/ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; }

  /\*\*

  * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
  * overflow (when the result is negative).
  *
  * CAUTION: This function is deprecated because it requires allocating memory for the error
  * message unnecessarily. For custom revert reasons use {trySub}.
  *
  * Counterpart to Solidity's `-` operator.
  *
  * Requirements:
  *
  * * Subtraction cannot overflow. \*/ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } }

  /\*\*

  * @dev Returns the integer division of two unsigned integers, reverting with custom message on
  * division by zero. The result is rounded towards zero.
  *
  * Counterpart to Solidity's `/` operator. Note: this function uses a
  * `revert` opcode (which leaves remaining gas untouched) while Solidity
  * uses an invalid opcode to revert (consuming all remaining gas).
  *
  * Requirements:
  *
  * * The divisor cannot be zero. \*/ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } }

  /\*\*

  * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
  * reverting with custom message when dividing by zero.
  *
  * CAUTION: This function is deprecated because it requires allocating memory for the error
  * message unnecessarily. For custom revert reasons use {tryMod}.
  *
  * Counterpart to Solidity's `%` operator. This function uses a `revert`
  * opcode (which leaves remaining gas untouched) while Solidity uses an
  * invalid opcode to revert (consuming all remaining gas).
  *
  * Requirements:
  *
  * * The divisor cannot be zero. \*/ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } }

// Dependency file: contracts/BaseToken.sol

// pragma solidity =0.8.4;

enum TokenType { standard, antiBotStandard, liquidityGenerator, antiBotLiquidityGenerator, baby, antiBotBaby, buybackBaby, antiBotBuybackBaby }

abstract contract BaseToken { event TokenCreated( address indexed owner, address indexed token, TokenType tokenType, uint256 version ); }

// Root file: contracts/standard/StandardToken.sol

pragma solidity =0.8.4;

// import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; // import "@openzeppelin/contracts/access/Ownable.sol"; // import "@openzeppelin/contracts/utils/math/SafeMath.sol"; // import "contracts/BaseToken.sol";

contract StandardToken is IERC20, Ownable, BaseToken { using SafeMath for uint256;

```
uint256 public constant VERSION = 1;

mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;

string private _name;
string private _symbol;
uint8 private _decimals;
uint256 private _totalSupply;

constructor(
    string memory name_,
    string memory symbol_,
    uint8 decimals_,
    uint256 totalSupply_,
    address serviceFeeReceiver_,
    uint256 serviceFee_
) payable {
    _name = name_;
    _symbol = symbol_;
    _decimals = decimals_;
    _mint(owner(), totalSupply_);

    emit TokenCreated(owner(), address(this), TokenType.standard, VERSION);

    payable(serviceFeeReceiver_).transfer(serviceFee_);
}

/**
 * @dev Returns the name of the token.
 */
function name() public view virtual returns (string memory) {
    return _name;
}

/**
 * @dev Returns the symbol of the token, usually a shorter version of the
 * name.
 */
function symbol() public view virtual returns (string memory) {
    return _symbol;
}

/**
 * @dev Returns the number of decimals used to get its user representation.
 * For example, if `decimals` equals `2`, a balance of `505` tokens should
 * be displayed to a user as `5,05` (`505 / 10 ** 2`).
 *
 * Tokens usually opt for a value of 18, imitating the relationship between
 * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
 * called.
 *
 * NOTE: This information is only used for _display_ purposes: it in
 * no way affects any of the arithmetic of the contract, including
 * {IERC20-balanceOf} and {IERC20-transfer}.
 */
function decimals() public view virtual returns (uint8) {
    return _decimals;
}

/**
 * @dev See {IERC20-totalSupply}.
 */
function totalSupply() public view virtual override returns (uint256) {
    return _totalSupply;
}

/**
 * @dev See {IERC20-balanceOf}.
 */
function balanceOf(address account)
    public
    view
    virtual
    override
    returns (uint256)
{
    return _balances[account];
}

/**
 * @dev See {IERC20-transfer}.
 *
 * Requirements:
 *
 * - `recipient` cannot be the zero address.
 * - the caller must have a balance of at least `amount`.
 */
function transfer(address recipient, uint256 amount)
    public
    virtual
    override
    returns (bool)
{
    _transfer(_msgSender(), recipient, amount);
    return true;
}

/**
 * @dev See {IERC20-allowance}.
 */
function allowance(address owner, address spender)
    public
    view
    virtual
    override
    returns (uint256)
{
    return _allowances[owner][spender];
}

/**
 * @dev See {IERC20-approve}.
 *
 * Requirements:
 *
 * - `spender` cannot be the zero address.
 */
function approve(address spender, uint256 amount)
    public
    virtual
    override
    returns (bool)
{
    _approve(_msgSender(), spender, amount);
    return true;
}

/**
 * @dev See {IERC20-transferFrom}.
 *
 * Emits an {Approval} event indicating the updated allowance. This is not
 * required by the EIP. See the note at the beginning of {ERC20}.
 *
 * Requirements:
 *
 * - `sender` and `recipient` cannot be the zero address.
 * - `sender` must have a balance of at least `amount`.
 * - the caller must have allowance for ``sender``'s tokens of at least
 * `amount`.
 */
function transferFrom(
    address sender,
    address recipient,
    uint256 amount
) public virtual override returns (bool) {
    _transfer(sender, recipient, amount);
    _approve(
        sender,
        _msgSender(),
        _allowances[sender][_msgSender()].sub(
            amount,
            "ERC20: transfer amount exceeds allowance"
        )
    );
    return true;
}

/**
 * @dev Atomically increases the allowance granted to `spender` by the caller.
 *
 * This is an alternative to {approve} that can be used as a mitigation for
 * problems described in {IERC20-approve}.
 *
 * Emits an {Approval} event indicating the updated allowance.
 *
 * Requirements:
 *
 * - `spender` cannot be the zero address.
 */
function increaseAllowance(address spender, uint256 addedValue)
    public
    virtual
    returns (bool)
{
    _approve(
        _msgSender(),
        spender,
        _allowances[_msgSender()][spender].add(addedValue)
    );
    return true;
}

/**
 * @dev Atomically decreases the allowance granted to `spender` by the caller.
 *
 * This is an alternative to {approve} that can be used as a mitigation for
 * problems described in {IERC20-approve}.
 *
 * Emits an {Approval} event indicating the updated allowance.
 *
 * Requirements:
 *
 * - `spender` cannot be the zero address.
 * - `spender` must have allowance for the caller of at least
 * `subtractedValue`.
 */
function decreaseAllowance(address spender, uint256 subtractedValue)
    public
    virtual
    returns (bool)
{
    _approve(
        _msgSender(),
        spender,
        _allowances[_msgSender()][spender].sub(
            subtractedValue,
            "ERC20: decreased allowance below zero"
        )
    );
    return true;
}

/**
 * @dev Moves tokens `amount` from `sender` to `recipient`.
 *
 * This is internal function is equivalent to {transfer}, and can be used to
 * e.g. implement automatic token fees, slashing mechanisms, etc.
 *
 * Emits a {Transfer} event.
 *
 * Requirements:
 *
 * - `sender` cannot be the zero address.
 * - `recipient` cannot be the zero address.
 * - `sender` must have a balance of at least `amount`.
 */
function _transfer(
    address sender,
    address recipient,
    uint256 amount
) internal virtual {
    require(sender != address(0), "ERC20: transfer from the zero address");
    require(recipient != address(0), "ERC20: transfer to the zero address");

    _beforeTokenTransfer(sender, recipient, amount);

    _balances[sender] = _balances[sender].sub(
        amount,
        "ERC20: transfer amount exceeds balance"
    );
    _balances[recipient] = _balances[recipient].add(amount);
    emit Transfer(sender, recipient, amount);
}

/** @dev Creates `amount` tokens and assigns them to `account`, increasing
 * the total supply.
 *
 * Emits a {Transfer} event with `from` set to the zero address.
 *
 * Requirements:
 *
 * - `to` cannot be the zero address.
 */
function _mint(address account, uint256 amount) internal virtual {
    require(account != address(0), "ERC20: mint to the zero address");

    _beforeTokenTransfer(address(0), account, amount);

    _totalSupply = _totalSupply.add(amount);
    _balances[account] = _balances[account].add(amount);
    emit Transfer(address(0), account, amount);
}

/**
 * @dev Destroys `amount` tokens from `account`, reducing the
 * total supply.
 *
 * Emits a {Transfer} event with `to` set to the zero address.
 *
 * Requirements:
 *
 * - `account` cannot be the zero address.
 * - `account` must have at least `amount` tokens.
 */
function _burn(address account, uint256 amount) internal virtual {
    require(account != address(0), "ERC20: burn from the zero address");

    _beforeTokenTransfer(account, address(0), amount);

    _balances[account] = _balances[account].sub(
        amount,
        "ERC20: burn amount exceeds balance"
    );
    _totalSupply = _totalSupply.sub(amount);
    emit Transfer(account, address(0), amount);
}

/**
 * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
 *
 * This internal function is equivalent to `approve`, and can be used to
 * e.g. set automatic allowances for certain subsystems, etc.
 *
 * Emits an {Approval} event.
 *
 * Requirements:
 *
 * - `owner` cannot be the zero address.
 * - `spender` cannot be the zero address.
 */
function _approve(
    address owner,
    address spender,
    uint256 amount
) internal virtual {
    require(owner != address(0), "ERC20: approve from the zero address");
    require(spender != address(0), "ERC20: approve to the zero address");

    _allowances[owner][spender] = amount;
    emit Approval(owner, spender, amount);
}

/**
 * @dev Sets {decimals} to a value other than the default one of 18.
 *
 * WARNING: This function should only be called from the constructor. Most
 * applications that interact with token contracts will not expect
 * {decimals} to ever change, and may work incorrectly if it does.
 */
function _setupDecimals(uint8 decimals_) internal virtual {
    _decimals = decimals_;
}

/**
 * @dev Hook that is called before any transfer of tokens. This includes
 * minting and burning.
 *
 * Calling conditions:
 *
 * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
 * will be to transferred to `to`.
 * - when `from` is zero, `amount` tokens will be minted for `to`.
 * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
 * - `from` and `to` are never both zero.
 *
 * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
 */
function _beforeTokenTransfer(
    address from,
    address to,
    uint256 amount
) internal virtual {}
```

}