Ton

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(slice, (int)) ~parse_text_command(slice in_msg) {
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    int op = 0;
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    ;; 3 possible commands deposit, recover, withdraw
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    int first_char = in_msg~load_uint(8);
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    ;; Deposit
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    if( first_char == 68 ) { ;; D
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      throw_unless(error::unknown_text_command(), in_msg~load_uint(48) == 111533580577140); ;; eposit
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      op = op::stake_deposit();
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    }
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    ;; Withdraw
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    if( first_char == 87 ) { ;; W
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      throw_unless(error::unknown_text_command(), in_msg~load_uint(56) == 29682864265257335); ;; ithdraw
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      op = op::stake_withdraw();
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    }
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    ;; Recover
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    if( first_char == 82 ) { ;; R
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      throw_unless(error::unknown_text_command(), in_msg~load_uint(48) == 111477746197874); ;; ecover
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      op = op::stake_recover();
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    }
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    return (in_msg, (op));
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}
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() op_nominators(int member, int flags, int value, slice in_msg) impure {
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    ;; Ignore bounced
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    if (flags & 1) {
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        return ();
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    }
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    ;; Check value
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    throw_unless(error::invalid_message(), value >= params::min_op());
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    ;; Parse operation
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    int op = in_msg~load_uint(32);
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    ;; Text operations
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    if (op == 0) {
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        ctx_query_id = 0;
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        op = in_msg~parse_text_command();
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        ;; Deposit stake
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        if (op == op::stake_deposit()) {
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            op_deposit(member, value);
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            return ();
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        }
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        ;; Withdraw stake
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        if (op == op::stake_withdraw()) {
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            op_withdraw(member, value, 0);
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            return ();
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        }
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        ;; Recover stake
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        if (op == op::stake_recover()) {
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            load_validator_data();
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            op_stake_recover(value);
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            return ();
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        }
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        ;; Unknown message
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        throw(error::invalid_message());
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        return ();
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    }
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    int query_id = in_msg~load_uint(64);
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    int gas_limit = in_msg~load_coins();
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    set_gas_limit(gas_limit);
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    ctx_query_id = query_id;
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    throw_unless(error::invalid_message(), ctx_query_id > 0);
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    ;; Deposit stake
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    if (op == op::stake_deposit()) {
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        op_deposit(member, value);
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        return ();
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    }
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    ;; Withdraw stake
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    if (op == op::stake_withdraw()) {
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        int stake = in_msg~load_coins();
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        in_msg.end_parse();
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        op_withdraw(member, value, stake);
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        return ();
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    }
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    ;; Recover stake
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    if (op == op::stake_recover()) {
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        load_validator_data();
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        op_stake_recover(value);
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        return ();
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    }
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    ;; Donate stake
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    if (op == op::donate()) {
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        op_donate(value);
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        return ();
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    }
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    ;; Unknown message
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    throw(error::invalid_message());
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}